zebras ( / ˈzɛbrə / zeb-rə or / ˈziːbrə / zee-brə ) are several species of african equids ( horse family ) united by their distinctive black and white striped coats .

their stripes come in different patterns , unique to each individual .

they are generally social animals that live in small harems to large herds .

unlike their closest relatives , horses and donkeys , zebras have never been truly domesticated .

there are three species of zebras : the plains zebra , the mountain zebra and the grévy 's zebra .

the plains zebra and the mountain zebra belong to the subgenus hippotigris , but grévy 's zebra is the sole species of subgenus dolichohippus .

the latter resembles an ass , to which it is closely related , while the former two are more horse-like .

all three belong to the genus equus , along with other living equids .

the unique stripes of zebras make them one of the animals most familiar to people .

they occur in a variety of habitats , such as grasslands , savannas , woodlands , thorny scrublands , mountains , and coastal hills .

however , various anthropogenic factors have had a severe impact on zebra populations , in particular hunting for skins and habitat destruction .

grévy 's zebra and the mountain zebra are endangered .

while plains zebras are much more plentiful , one subspecies , the quagga , became extinct in the late 19th century – though there is currently a plan , called the quagga project , that aims to breed zebras that are phenotypically similar to the quagga in a process called breeding back .

zebra

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some experts say that there are three species of zebras — grevy ' s zebra , plains zebra and mountain zebra — and that hartmann ' s zebra is a subspecies of mountain zebra . other experts say hartmann ' s zebra is a separate species .
s zebra is about 13 months , one month longer than other species of zebra .
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male zebra finches have red bills ; female zebra finches have orange bills . male zebra finches also have more striking colors , like bright orange cheek patches
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, mountain zebra equus zebra , and grevy ' s zebra equus grevyi . they all have black and white stripes that set them apart from other equidaes .
the plains zebra , also known as the common zebra , is the most abundant of three species of zebra , inhabiting the grasslands of eastern and southern africa .
each species of zebra has its own conservation status . according to the iucn ' s red list of threatened species , the plains zebra is not endangered , while the mountain zebra is considered vulnerable and the grevy ' s zebra is endangered . the red list also lists hartmann ' s zebra ( as a subspecies of mountain zebra ) as vulnerable .
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the grevy’s zebra ( equus grevyi ) is also called the ‘imperial zebra’ . the grevy’s zebra is the largest species of zebra and is found in kenya , somalia and ethiopia in eastern africa . in certain regions of kenya , the plains zebras and grevy’s zebras coexist ( live together ) . the grevy’s zebra was the first zebra to emerge as a species .
zebras having narrower stripes and white undersides , while the common zebra has broad stripes that cover its entire body . the grevy ' s zebra is not only the largest of the zebra
resembling the stripes of a zebra ; having stripes running along the sides : as , the zebra markings on certain spiders .
zebra are found in increasingly isolated regions and their numbers continue to fall throughout their natural ranges . the common zebra is an
s mountain zebra of namibia . the cape mountain zebra has a dewlap under the lower jaw , which other zebras do not have .
s zebra and the cape mountain zebra are both endangered . as of 2003 , there were from 3 , 000 to 3 , 500 grevy
all about zebra hybrids - this site from the american donkey and mule society ( adms ) contains information and pictures about zebras and zebra hybrids .
several other species of zebra are threatened or endangered , such as grevy ' s zebra ( equus grevyi ) in kenya , ethiopia , and somalia ; hartmann ' s mountain zebra ( equus zebra hartmannae ) in angola and namibia ; and the mountain zebra ( equus zebra zebra ) in south africa . the cape mountain zebra has adapted to life on sheer mountain slopes and ravines where usually only wild goats and sheep can survive . in 1964 , only about 25 mountain zebra could be found in the area , but after two decades of protection , the population had increased to several hundred in cradock national park in the cape province ' s great karroo area .
the only data on plains zebra from rwanda are from a 2013 aerial survey that estimated 999 plains zebra in akagera national park ( african parks website ) . it is unlikely that there are many plains zebra outside this protected area .
black and white stripes make the zebra one of the most recognizable animals in the world . the plains zebra , also known as the common zebra , is the most abundant of three species of zebra , inhabiting the grasslands of eastern and southern africa . the other two species are grevy’s zebras and mountain zebras .
s zebra ( e . burchelli granti ) has wide rump stripes , the chapmann
s zebra had reddish brown stripes , and became extinct in the early 1900s .
3 before we can spray , we need to sand down the zebra stripes .
each zebra has a unique stripe pattern , like a person ' s fingerprint .
zebra in the grasslands of the serengeti at dawn in tanzania , east africa .
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if you would like to help the plains zebra , you can donate to the african wildlife foundation , whose initiatives help preserve critical zebra habitat and wildlife corridors .
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please share your feedback , favorite zebra facts and observations via the comments below .
why is it so hard to tame the zebra ? survival of the fittest .
for grevy’s zebra ( equus grevyi ) in kenya ( 2012 - 2016 ) .
with the headline : finding a way to put a zebra in your tank .
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six races occur , including grants zebra ( serengeti - mara ) , burchell’s zebra ( southern africa ) , and crawshay’s zebra ( malawi and parts of zambia ) . adults stand up to 1 . 3m at the shoulder and weigh up to 350kg .
so long as i am not called zebra , i really don ' t mind .
first , zebra is able to detect and correct photometric offsets in the input catalogue .
grevy ' s zebra is the largest of the zebras and has the narrowest stripes .
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in this post we will look at the world of the zebra in the wild .
help our zebra find his stripes ! a whimsical song by little angel . subscribe for more videos : urltoken educational kids show . popular songs for children . lyrics : help me find my zebra stripes black and white zebra stripes ! help me find my zebra stripes , i ' ve lost my zebra stripes . are they here ? are they here ? help me find my zebra stripes black and white zebra stripes ! help me find my zebra stripes , i ' ve lost my zebra stripes . have you seen them ? oh my ! cheetah is so fast ! help me find my zebra stripes black and white zebra stripes ! help me find my zebra stripes , i ' ve lost my zebra stripes . mr turtle , have you seen them ? yes , yes , they went that way ! and mr skunk , have you . . ? oh my ! that ' s really stinky ! mr skunk that ' s really stinky ! will i ever find my stripes ? help me find my zebra stripes black and white zebra stripes ! help me find my zebra stripes , i ' ve lost my zebra stripes . i wonder if they are in this big puddle of water . . oh ! the water ' s washed off the mud ! there were my stripes all along ! i found them ! guys i found them ! ! ! animation by : lou rigoudy : urltoken music & lyrics by : ben rawles : urltoken jemma johnson : urltoken copyright 2016 valnet
s zebra has only faint shadow stripes between the black stripes . a subspecies known as the
s zebra is protected in a game reserve in kenya . there are about 1 , 200 cape mountain zebras , most of which live in mountain zebra national park in south africa .
not all wristbands are created equal . discover why the country’s top hospitals use zebra wristbands .
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once a zebra got its leg broke in swinging one of the big poles in place .
sisal is a sort of small oxen striped like a zebra and spotted like a leopard .
to gain the nutrition that it needs to survive . the majority of the zebra ' s
the mountain zebra is considered vulnerable because its population is low and susceptible to decreasing . according to the iucn , the mountain zebra has a population of only around 9 , 000 adults .
while attempts at domestication have failed , some individuals have had success training and even hybridizing zebras ! common zebra hybrids : zorse ( horse + zebra ) and zonkey ( donkey + zebra ) . zebra hybridization has actually been in existence at least a century . one of the pioneers in the field was j . c . ewart , author of the penycuik experiments in 1899 .
if a zebra passes or attempts to pass another zebra that is more dominant than themselves then they will be bitten or kicked ferociously by the more dominant animal . passing is a challenge .
the sustained decline in grevy’s zebra numbers and range has been a major concern to stakeholders in grevy’s zebra conservation in kenya . it was recognised that the conservation of grevy’s zebra and its semi - arid ecosystem in kenya and ethiopia will require commitment and coordination among all stakeholders to ensure the future survival of this species . this led to the formation of a grevy’s zebra task force in 2004 chaired by the kenya wildlife service to coordinate grevy’s zebra conservation efforts in kenya . a major output of its meetings was the need to develop a national grevy’s zebra conservation strategy . the task force has since evolved into the grevy’s zebra technical committee which provides guidance to ongoing and proposed grevy’s zebra research and conservation efforts . the following organisations sit on the technical committee :
zebra , in medical terminology , refers to a rare condition or situation . it can refer to either the patient with the condition or the condition itself . ( e . g . :
this guy has a real zebra
or
this guy ' s a zebra
)
feature facts : subtle variations in a zebra ' s stripes allow each individual to be recognized .
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always after , the colts of those mares bore the marks of the zebra on their skins .
mark the zebra stripes round his legs , miss ; and the black stripe on his backbone .
others , such as the zebra , remain for a lifetime possessed of their original savage nature .
balakrishnan c , et al . gene duplication and fragmentation in the zebra finch major histocompatibility complex .
the grevy’s zebra have long heads and necks and a bristly mane running from the top of its head , downwards to the top of its back . the grevy’s zebra is tall compared to the other zebra species and also differs from the other species with its primitive characteristics and different behaviour .
learn how the saint louis zoo is conserving the grevy ' s zebra in kenya and ethiopia .
bhoora , r . , buss , p . , guthrie , a . j . , penzhorn , b . l . , & collins , n . e . ( 2010 ) . genetic diversity of piroplasms in plains zebra ( equus quagga burchellii ) and cape mountain zebra ( equus zebra zebra ) in south africa . veterinary parasitology , 174 ( 1 ) , 145 - 149 . urltoken
in order to get them to draw a carriage , rothschild must have realized something important about wild zebra behavior . zebra herds are made up of groups of females and young with one adult male .
penzhorn , b . l .
equus zebra .
mammalian species no . 314 , 1988 .
but this doesn ' t mean the zebra stripes mystery has finally been solved , according to larison .
the plains zebra is the most abundant and the smallest of the three zebra species . some subspecies have a stripe pattern different from all others : brownish “shadow” stripes between the black stripes on their coat .
the lighthouse is striped with black and white bars , like a zebra , and we entered it .
this is very much like the zebra in size , shape , and in fact everything except colour .
but with the power and resilience of a zebra . as with other cross - breed offspring though ,
relationship between total expression levels and tissue specificity in expression ( τ ) for zebra finch immune genes .
stapley j , birkhead tr , burke t , slate j . a linkage map of the zebra finch
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the study , published in the journal plos one , found stripes are not used for camouflage , or a means of breaking up the outline of the zebra to make it less conspicuous , as at the point at which predators can see zebra stripes they will already have heard or smelled the zebra prey .
male grevy’s zebra are highly territorial and mark their territories with urine and piles of dung called ‘middens’ . male grevy’s zebra usually live solitary in their territories until females pass through during mating season . the male grevy’s zebra differs from other zebras in mating behaviour as other zebra species form harems that remain in the males territory all year round . non - territorial males travel together in groups of 7 or 8 .
penzhorn , b . 1982 . habitat selection by cape mountain zebras in the mountain zebra national park .
zebra and other african game evolved characteristics to help them survive one of the harshest environments on earth .
learn more about the grevy ' s zebra and other endangered wildlife by visiting the saint louis zoo .
zebra dung contains a special bacterium that is capable of breaking down cellulose and converting it to biofuel .
there are several subspecies of the common zebra , distinguishable by the pattern of stripes on the rump . grant
contrary to popular belief , zebra stripes are not for camouflage , a university of calgary study has found .
unlike humans , animals don ' t see very well — including lions , hyenas and other zebra predators .
a zebra ' s eyesight at night is thought to be about as good as that of an owl .
plains zebra were likely eradicated from south - western mozambique during 22 years of war ( 1964 - 1974 ; 1980 - 1992 ) . between 2002 and 2008 , 1361 zebra were ( re - ) introduced to the western section of the newly created limpopo national park ( lnp ) , from the adjoining kruger national park ( knp ) in south africa . subsequent aerial surveys ( 2010 , 2013 ) indicate a sharp reduction in zebra abundances in lnp and restriction of zebra distribution to the western boundary . recent ground surveys ( 2014 ) documented natural range expansion of zebra into central lnp . illegal hunting is widespread in lnp and may explain reduced zebra abundances . zebra were not detected in banhine national park during 2004 , 2007 , 2009 and 2014 surveys .
ohio sea grant . 1992 . boaters : take action against zebra mussels . ohsu - fs - 054 .
zebra mussel information system ( zmis ) . 1996 . cd - rom version 3 . 0 , zebra mussel research program , u . s . army corps of engineers , waterways experiment station , vicksburg , ms .
three pelts — an impala , zebra and wildebeest — set up for nighttime observations . ( tim caro )
lemon wc ( 1991 ) fitness consequences of foraging behaviour in the zebra finch . nature 352 : 153–155 .
, and is the largest of the wild horses , characterized by large ears , narrow stripes , and a thick neck . the third species is the mountain zebra ( e . zebra ) found in the hill country of
grevy’s zebra usually mate in august , september and october and produce foals during the rainy seasons . grevy’s zebra mate year - round . gestation of the female zebra lasts 350 – 400 days , with a single foal being born . a newborn zebra will follow anything that moves and therefore , new mothers are highly aggressive towards other mares a few hours after they gave birth . this prevents the foal from acquiring another female as its mother .
s zebra is quite different in both appearance and behavior from the common zebra . it stands about 5 ft ( 1 . 5 m ) tall at the shoulder and weighs about 990 lb ( 450 kg ) . its stripes are very narrow , do not cross over the lower back as they do in the cape mountain zebra .
though they all live in africa , each species of zebra has its own home area . plains zebras live in the treeless grasslands and woodlands of eastern and southern africa . the grevy ' s zebra lives in in the arid grasslands of ethiopia and northern kenya . the mountain zebra is found in south africa , namibia and angola .
s large , rounded ears turn in every direction and are able to pick up the slightest sound . the zebra
zebra ( ze - t & ze2 - t ) zebra ( zurich extragalactic bayesian redshift analyzer feldmann et al . 2006 ) is a freely available , open source photometric redshift code based on a sed template - ﬁtting approach .
and although the common zebra is more widespread and numerous , there have been sharp population declines in certain areas .
lorenzen ed , arctander p , siegsismund hr . high variation and very low differentiation in wide ranging plains zebra (
griffith sc , buchanan kl . the zebra finch : the ultimate australian supermodel . emu . 2010 ; 110 .
in low - nutrient lakes is associated with exotic zebra mussels . limnology and oceanography 49 : 482 - 487 .
zann ra ( 1996 ) the zebra finch ; m . pc , editor . oxford : oxford university press .
throughout history there have been various attempts to domesticate zebra for a number of reasons , both wacky and serious .
as with so many other african species , poaching is a large reason for the reduction . zebra hides can fetch big bucks , and both zebra fat and bone marrow have purported medicinal values in some traditional kenyan medicine practices .
each species of zebra has a different general pattern of stripes . the grevy ' s zebra has very thin stripes . the mountain zebra has vertical stripes on its neck and torso , but horizontal stripes on its haunches . some subspecies of plains zebras have brownish
shadow
stripes between the black stripes , according to the san diego zoo .
©2018 zih corp and / or its affiliates . all rights reserved . zebra and the stylized zebra head are trademarks of zih corp . , registered in many jurisdictions worldwide . all other trademarks are the property of their respective owners .
©2018 zih corp and / or its affiliates . all rights reserved . zebra and the stylised zebra head are trademarks of zih corp . , registered in many jurisdictions worldwide . all other trademarks are the property of their respective owners .
grevy’s zebra is listed as endangered on the world conservation union’s ( iucn’s ) red list of threatened animals partly due to hunting for its skin , which fetches a high price on the world market . the grevy’s zebra also suffers habitat destruction , human disturbances at water holes and competition with domestic grazing animals . there are estimated to be 1 , 500 – 2 , 000 grevy’s zebra still living in the wild . the grevy’s zebra is however , common in captivity .
ekblom r , balakrishnan cn , burke t , slate j . digital gene expression analysis of the zebra finch genome .
harris , rob .
how much does a fully grown zebra weigh ?
accessed july 09 , 2018 . urltoken
we can halter - train your zebra and / or train your horse to do just about anything you can imagine .
the social structure of the grevy’s zebra is well - adapted for the dry and arid scrubland and plains that it primarily inhabits , less for the more lush habitats used by the other zebras . the grevy’s zebra communicates over long distances .
burley nt ( 2006 ) an eye for detail : selective sexual imprinting in zebra finches . evolution 60 : 1076–1085 .
both subspecies of mountain zebra are herbivorous . the primary diet consists of grass but also includes browse . in mznp ,
beyond conditioned - response by rick harper - there is a section on training zebras and zebra hybrids in this paper .
this vision and goal will be achieved through five strategic objectives that focus on mitigating the threats to grevy’s zebra survival , increasing their numbers , and building a solid foundation upon which to sustain grevy’s zebra conservation in the long - term .
smith , r . k . , marais , a . , chadwick , p . , lloyd , p . h . & hill , r . a . ( 2008 ) monitoring and management of the endangered cape mountain zebra equus zebra zebra in the western cape , south africa . african journal of ecology , 46 : 207 - 213 ( pdf )
though the population of the grevy ' s zebra is stable , it is considered endangered because its numbers are so small . the grevy ' s zebra has a population of just 1 , 966 to 2 , 447 , according to iucn .
the researchers collected the trapped flies every two days , and found that the zebra - striped horse model attracted the fewest .
university of calgary anthropologist amanda melin measures the luminance of zebra stripes at the calgary zoo . ( tim caro / ucdavis )
in a paper called the function of zebra stripes , caro found striped animals were more common in areas with biting flies .
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and so rely heavily on the open plains for their survival . although the common zebra has been least affected , all three
a total of 144 chicken–zebra finch immune genes orthologs were found using our manual annotation ( appendix 1 and 2 ) . pairwise
a total of 119 zebra finch–chicken orthologs for immune genes were identified without using any a priori information from automated zebra finch gene predictions . for 95 of these zebra finch–chicken orthologs , gene pairs had also been identified by the automated ensembl gene prediction pipeline . we found a very strong positive correlation between ω values obtained from the manual annotation and those from automated gene prediction (
harris , rob .
how much does a fully grown zebra weigh ?
animals - urltoken , http : / / animals . urltoken / much - fully - grown - zebra - weigh - 2274 . html . accessed 09 july 2018 .
to learn more about the secrets of zebra ' s stripes and other animals , visit the links on the next page .
caro in a zebra pelt ( top ) and a wildebeest pelt ( above ) . ( photo courtesy of tim caro )
how a stallion will choose his females and how they will mate as well as a few other zebra facts and trivia .
likewise , the iucn says a 2008 study of 17 plains zebra populations that represented five of the six subspecies found very little differentiation among them and concludes that the subspecies splits may be arbitrary . itis , however , lists six subspecies of plains zebra .
harris , rob . ( n . d . ) . how much does a fully grown zebra weigh ? animals - urltoken . retrieved from http : / / animals . urltoken / much - fully - grown - zebra - weigh - 2274 . html
plains zebra ( equus quagga ) is the commonest of africa’s three zebra species and the one familiar to most safari goers . whether it is migrating in thousands across the serengeti , grazing the bushveld of the kruger or crowding the dusty waterholes of etosha .
the kick of a zebra can break a lion’s jaw . they can be savage biters and possess a “ducking” reflex that helps them avoid being caught by lasso . familiarity with human hunter gatherers may also have fostered a strong avoidance response in the zebra .
in many ways , zebra appear very like horses ( or ponies , given their size ) . yet underlying differences in behaviour have meant that while horses and donkeys have been successfully domesticated , the zebra remains predominantly wild . so how did the zebra avoid the load bearing , farm working , fence jumping fate of its cousins ? and which animal ended up with the better deal ?
but the narrower ( and more zebra - like ) the stripes , the less attractive they were to the flies .
is the smallest zebra , standing about 4 ft ( 1 . 2 m ) at the shoulder and weighing about 600 lb ( 272 kg ) . the stripes of the cape mountain zebra are slightly wider and shorter than those of the other subspecies , hartmann
contrary to popular belief , zebra stripes are not for camouflage , a study by scientists at the university of calgary has found .
melin conducted the study with university of california , davis professor tim caro , who has spent his entire career studying zebra stripes .
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here , since zebra participates only in phat0 , it is run in its basic maximum likelihood mode and with the provided templates .
, in contaminant cycling : ii . zebra mussel contaminant accumulation from algae and suspended particles , and transfer to the benthic invertebrate ,
nel , p . j . , bertschinger , h . , williams , j . , & thompson , p . n . ( 2006 ) . descriptive study of an outbreak of equine sarcoid in a population of cape mountain zebra ( equus zebra zebra ) in the gariep nature reserve . journal of the south african veterinary association , 77 ( 4 ) , 184 - 190 . urltoken
mate call as reward : acoustic communication signals can acquire positive reinforcing values during adulthood in female zebra finches ( taeniopygia guttata ) .
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clayton ns ( 1990 ) mate choice and pair formation in timor and australian mainland zebra finches . anim behav 39 : 474–480 .
witte k , caspers b ( 2006 ) sexual imprinting on a novel blue ornament in zebra finches . behaviour 143 : 969–991 .
riebel k ( 2009 ) song and female mate choice in zebra finches : a review . adv stud behav 40 : 197–238 .
galton uses the zebra as an example of an unmanageable species , stating that the dutch boers repeatedly tried to break zebra to harness . although they had some success , the wild , mulish nature of the animals would frequently break out and thwart their efforts .
ultimately , crosses between any species of zebra and a horse , pony , donkey or ass , reffered to as
zebroids
are a preferred method of achieving a patient and willing ridable zebra , a cross - species creation made famous by queen charlotte .
mountain zebras are loated in south western parts of south africa . classification of a zebra mountain zebras are herbivorses they are also consumers . zebras are worm - blooded . facts about zebras zebras are a single - toed hoofed animal . it helps them run faster on hard ground . 5 interesting facts about a mountin zebra in south america there is a project to bring back the qugga an extinct subspecies of the mountain zebra . odd fact zebra ' s kindom : animalia phylum : chordata class : mammalia order : perissodactyla family : equidae genus : equus species : equus zebra there stripes make it hard for a predetor to pick out one zebra to chase . zebras live up to 20 - 30 years old . in a zoo they live up to 40 years when chased , a zebra will zigzag from side to side it makes it more difficult for the predetor to catch them where are they at ? !
one is the
cooling eddy
theory . when air hits a zebra , the currents are stronger and faster over the black parts ( since black absorbs more heat than white ) and slower over the white . at the juncture of these two opposing airflows , little eddies of air may swirl and serve to cool a zebra ' s skin . ( download zebra - stripes desktop wallpaper . )
herds of the common zebra readily mix with herds of wildebeest , but cape mountain zebras tend to keep apart from other animals . hartmann
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schoverling put down another oryx and a zebra , whose flesh the masai delighted in , though it was too tough for the others .
first , there is the true zebra , perhaps the most beautiful of all quadrupeds , and of which no description need be given .
the ﬁrst fasr prototype observation of the zebra pattern radio burst ( chen et al . , 2011 ) is a very promising result .
second , zebra can use spectroscopic redshifts on a small fraction of the photometric sample to iteratively correct the original set of input templates .
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zann ra . the zebra finch : a synthesis of field and laboratory studies . oxford , uk : oxford university press ; 1996 .
however , the common consensus that zebra stripes are used as camouflage to protect them from predators has been refuted in a new study .
so the zebra became our symbol to mean , “sometimes when you hear hoofbeats , it really is a zebra . ” ehlers - danlos syndromes are unexpected because they’re rare . hypermobile spectrum disorders are common , but are unexpected because they remain misdiagnosed or under - diagnosed .
the life span of mountain zebras in the wild is usually 20 or more years . the oldest documented mountain zebra in captivity is an
the quagga project - the quagga project committee is reintroducing the quagga ( an extinct zebra ) back into south africa using hybridization techniques .
making alcohol from sugars is easy ; maybe the third oldest profession in the world . making butanol from zebra droppings is another story .
the manes and tails of zebra are in fact more similar to those of asses ( donkeys ) and reflect the evolutionary history of the genus equus . although horses , assess and zebra all evolved from a common ancestor ( hyracotherium ) which lived in europe and north america around 55m years ago , divergence meant that the zebra and donkey are more closely related to each other than either is to the horse .
with a wild population of about 25 , 000 , the mountain zebra is classified as threatened . the cape mountain zebra came very close to extinction as a result of hunting and competition with domestic cattle . in 1937 , mountain zebra national park was established in south africa , where only 47 cape mountain zebras remained . their numbers have now increased to several hundred , with the majority still in the national park .
which live on rough , rocky highlands , but once also occurred in large numbers in the grassy lowland plains . the cape mountain zebra of
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the zebra , which has always described itself as the kayak of car insurance , has hired a longtime kayak executive as its new ceo .
each species having a characteristic pattern of black or dark - brown stripes on a whitish background : all zebra species are threatened or endangered .
, zebra stallions are known to curl their top lips up which is thought to heighten their sense of smell . this so - called
iucn classification zones concord with , but underestimate , the population genetic structure of the zebra shark stegostoma fasciatum in the indo - west pacific .
each zebra ' s stripes are unique . just as no two human fingerprints are alike , no two zebras have the same stripe pattern .
the grevy’s zebra is considered an endangered species , mainly due to the hunting for its skin which fetches high prices on the world market .
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simpson hb , vicario ds ( 1990 ) brain pathways for learned and unlearned vocalizations differ in zebra finches . j neurosci 10 : 1541–1556 .
i know how to use the send _ ptp block , but i have some doubts about the zebra commands that i need to use .
zann ra ( 1996 ) the zebra finch : a synthesis of field and laboratory studies . oxford , new york : oxford university press .
hey , if you want some zebra poop , show up at the barn with yr boots and gloves . it’s time for spring cleaning !
it might seem like a zebra is a zebra , but there are three different species : plains , mountain , and grevy’s zebras . different zebra species have different types of stripes , from narrow to wide . in fact , the farther south on the african plains you travel , the farther apart the stripes on the zebras get ! the basic form of zebras—a large head , sturdy neck , long legs , a dorsal stripe along the spine and down a tasseled tail , and bristly mane—is universal . no zebra , or other wild equid , has a forelock .
all three species of zebra have bold black and white stripes that stand out among more drab - looking african grazers , like buffalo and antelope , especially against a plain savanna background . and standing out would seem to make a zebra more likely to become a lion ' s lunch .
the endangered grevy’s zebra’s population has been ravaged by anthrax outbreaks , dropping its ranks to an estimated wild population of 2 , 250 . san diego zoo global is a member of the grevy’s zebra trust , an independent wildlife conservation organization in kenya , and our researchers are working with other conservation groups to help preserve the population . as of august 2012 , we ' d had 128 grevy ' s zebra births at our facilities .
with the support of the saint louis zoo and others , the grevy ' s zebra trust ( gzt ) was registered as an independent charitable wildlife conservation trust based in kenya in early 2007 . its mission is to conserve the endangered grevy ' s zebra and its fragile habitat in partnership with communities . it operates in the samburu and marsabit districts of northern kenya and provides technical support to grevy ' s zebra conservation in ethiopa .
to evaluate the automatic gene annotation in ensembl , the ω values for zebra finch–chicken comparisons of immune genes were compared with our manually calculated omega values for the same genes . for the zebra finch immune genes that were annotated without using a priori information from automated zebra finch gene predictions , we downloaded d n and d s values from the ensembl database ( release 54 ) using the biomart web interface ( urltoken ) . for genes with more than one zebra finch ortholog on ensembl , the pair with least sequence difference ( minimum d n + d s ) was selected .
zebras lazy day . by david prescott young zebra . 16 x 20 acrylic / canvas original available price : $ 2 , 500 . 00 usd
the researchers then went a step further , using the two temperature variables to predict the striping patterns of zebra populations not included in the study .
what made you want to look up zebra ? please tell us where you read or heard it ( including the quote , if possible ) .
ma jor predators of zebra , buf falo , kongoni , toki and thomson’s gazelle are hyena , wild dog , lion , leopard and cheetas .
2012 ) . plains zebra are the most abundant wildlife species in this area , yet like all wildlife are experiencing a decline since the 1980s .
klerks , p . l . , p . c . fraleigh , and j . e . lawniczak . 1996 . effects of zebra mussels (
a zebra grazing on the grassy plains gazes at the researchers ' chart used for color - calibrating images . ( tim caro / uc davis )
rutstein an , brazill - boast j , griffith sc ( 2007 ) evaluating mate choice in the zebra finch . anim behav 74 : 1277–1284 .
deerenberg c , overkamp gjf ( 1999 ) hard work impinges on fitness : an experimental study with zebra finches . anim behav 58 : 173–179 .
the recently extinct zebra - like quagga ( e . quagga ) looked like a combination of wild ass and zebra and had a reddish coat and stripes only on the head , neck , and shoulders . the name quagga is derived from the odd bray of this species , which was described as
two allopatric subspecies of mountain zebra have traditionally been recognized , the nominate race e . z . zebra ( cape mountain zebra ) and e . z . hartmannae ( hartmann ' s mountain zebra ) . groves and ryder ( 2000 ) proposed that the two be treated as distinct species , and groves and bell ( 2004 ) presented morphological evidence for separating the two subspecies as distinct species based on the diagnosability criterion of the phylogenetic species concept . recent genetic analyses indicate that the two populations have a high incidence of mitochondrial haplotype sharing ; the hypothesis that cape and hartmann ' s mountain zebra mitochondrial lineages were reciprocally monophyletic was not supported . however , the presence of private alleles at nuclear loci rendered the two subspecies genetically distinct evolutionary significant units ( moodley and hartley 2005 ) . we continue to recognize mountain zebra as a single species comprising two subspecies following penzhorn ( in press ) .
closely related to horses and donkeys , the zebra ( subgenuses hippotigris and dolichohippus ) is best known for its black and white striped body . in fact , zebra stripe patterns are unique to each individual . these stripes are believed to be camouflage devices that help zebras hide well in the grass .
although it appears possible to tame individual zebra , this species was not a good candidate for domestication . in addition to the intractable nature of the zebra and its strong survival instinct , the fact that this species is “lion fodder” may also have made them appear less attractive “partners” to early humans .
speed and accuracy . you need them . zebra excels in them . any type of data . any condition . scan it right . scan it fast . the first time , every time . and that’s just the start . zebra goes beyond the barcode and delivers an unparalleled overall scanning experience , from configuring to deploying , from managing and troubleshooting to utilization and insights . that’s why zebra’s barcode scanners and imagers have led the industry for years .
you can also help conserve grevy ' s zebra by supporting a kenyan boy or girl to attend secondary school . in kenya , the future of the grevy ' s zebra and other endangered wildlife depends on the attitudes of the local people , including the children—the next generation of decision makers for their country . most kenyans cannot afford to attend secondary school ( grades 9 - 12 ) . to increase the education opportunities available and to reinforce the value of conserving grevy ' s zebra to kenyan children and their parents , we offer grevy ' s zebra bursaries , or scholarships . the grevy ' s zebra bursaries pay for the tuition , uniform and board for girls and boys to complete secondary school , thus offering them greater opportunities for their future .
s , or plains zebra ( e . burchelli ) lives throughout much of eastern and southern africa , and is the best - studied species . grevy
a wild zebra in tanzania is photographed with a colorchecker card , used to calibrate image processing software used by researchers . ( tim caro / ucdavis )
) used the large size of giant cape zebra fossils ( estimated 400 kg and 150 cm height at the withers ) to support conspecific status with grevy ' s zebra , the largest extant wild equid . however , skulls are considered to be the best taxonomic indicators for equids at the morphological level (
fanslow , d . l . , t . f . nalepa , and g . a . lang . 1995 . filtration rates of zebra mussels (
caryl pg ( 1976 ) sexual - behavior in zebra finch taeniopygia - guttata - response to familiar and novel partners . animal behaviour 24 : 93–107 .
slater pjb , eales la , clayton ns ( 1988 ) song learning in zebra finches : progress and prospects . adv stud behav 18 : 1–34 .
“the video above shows a pair of zebra ducks concentrating plankton by creating a water vortex . the typical head to tail position can be seen here .
the governments of kenya and ethiopia agreed last week to develop a new action plan to help protect the endangered grevy ' s zebra ( equus grevyi ) , the rarest zebra species and the largest equid species on the planet . the previous five - year conservation strategy for the species expired last year .
the goal is : to ensure increasing populations of grevy’s zebra and work towards fostering ecological , socio - cultural and economic sustainability within their natural range .
contribute to the zoo ' s conservation programs in the horn of africa and help us save the rare zebra and other wildlife . protecting the people and the wildlife in the community areas of the horn of africa is essential to successful conservation . by helping to support the grevy ' s zebra trust ' s scout program , you will help to preserve the last remaining wild populations of the grevy ' s zebra . scout support provides salary , uniforms , vehicles , and equipment—all necessary for the scouts who are working hard every day to create a safe haven for grevy ' s zebra and other endangered wildlife .
the grevy’s zebra is the largest , weighing from 770 to 990 pounds ( 350 to 450 kilograms ) and measuring up to 5 feet ( 1 . 5 meters ) at the shoulder . its thick neck and large , round ears give the grevy’s zebra the most mule - like physique . the grevy’s zebra also has the thinnest stripes , extending all the way down to their white belly ; on the hindquarters the stripes are vertical until above the hind legs .
dark water ( 2015 ) by john banovich zebra herd 9 x 12 limited edition giclee on canvas ltd . edition available price : $ 275 . 00 usd
a new analysis of the plains zebra—the most common species , which ranges from ethiopia to south africa—doesn ' t tease out one theory as the definitive winner .
just as important as opportunities for physical activity , the play area also has a quiet zone that overlooks the lagoon with views of grazing giraffe and zebra .
within the crater rim a daily wildlife drama is played out as large herds of zebra and wildebeest graze nearby lions , leopards , elephants and black rhinos .
what i meant by a zebra not sounding like a horse , necessarily , was that mother zebras make a whinny ing sound when separated from their foal .
forstmeier w . quantitative genetics and behavioural correlates of digit ratio in the zebra finch . proc biol sci . 2005 ; 272 : 2641–2649 . pmid : 16321787
tschirren b , postma e . quantitative genetics research in zebra finches : where we are and where to go . emu . 2010 ; 110 : 268–278 .
tschirren b , postma e . quantitative genetics research in zebra finches : where we are and where to go . emu . 2010 ; 110 : 268–278 .
while plains zebra remain numerous in kenya the population appears to be declining . in 1995 the population was estimated as 152 , 490 from aerial surveys ( hack
the largest zebra is the grevy ' s zebra , according to the san diego zoo . it weighs 770 to 990 lbs . ( 350 to 450 kilograms ) and is around 5 feet ( 1 . 5 meters ) tall from shoulder to hoof . their thick bodies make them look like mules with stripes .
bruner , k . a . , s . w . fisher , and p . f . landrum . 1994 . the role of the zebra mussel ,
roditi , h . a . , d . l . strayer , and s . e . g . findlay . 1997 . characteristics of zebra mussel (
the zebra ' s biggest threats are habitat loss due to ranching and farming and competition for water with livestock . they are also hunted for their skins .
mate call as reward : acoustic communication signals can acquire positive reinforcing values during adulthood in female zebra finches ( taeniopygia g . . . - pubmed - ncbi
witte k , sawka n ( 2003 ) sexual imprinting on a novel trait in the dimorphic zebra finch : sexes differ . anim behav 65 : 195–203 .
witte k ( 2006 ) time spent with a male is a good indicator of mate preference in female zebra finches . ethol ecol evol 18 : 195–204 .
using the zebra to do the work of horses , mules , and donkeys was a very popular idea , and there were widespread attempts to do so .
the vision of this strategy is : to have viable populations of grevy’s zebra in their natural habitat , functioning in healthy ecosystems and valued locally and globally .
but it does show that temperature is the factor most strongly linked to striping : more specifically , the warmer it is , the more stripes on the zebra .
third , when run in bayesian mode zebra computes the prior in redshift - template space in a selfconsistent manner from the input catalogues and the redshifttemplate likelihood functions .
kobiela me , cristol da , swaddle jp . risk - taking behaviours in zebra finches affected by mercury exposure . anim behav . 2015 ; 103 : 153–160 .
scheuhammer am . chronic dietary toxicity of methylmercury in the zebra finch , poephila guttata . bull environ contam toxicol . 1988 ; 40 : 123–30 . pmid : 3345357
bastviken , d . t . e . , n . f . caraco , and j . j . cole . 1998 . experimental measurements of zebra mussel (
molloy , d . p . 2002 . biological control of zebra mussels . proceedings of the third california conference on biological control . university of california , davis .
bill clicking . bill clicking is beak clattering that have already been described in zebra finches searching for a nest site and performing nest ceremony ( zann 1996 ) .
boogert nj , giraldeau l - a , lefebvre l ( 2008 ) song complexity correlates with learning ability in zebra finch males . anim behav 76 : 1735–1741 .
burley n , krantzberg g , radman p ( 1982 ) influence of colour - banding on the conspecific preferences of zebra finches . anim behav 30 : 444–455 .
zebra finches are frequently available in large pet stores , avian - retail stores as well as from bird breeders . they come a in a few color mutations .
box - and - whisker plot of d n / d s ( ω ) values between zebra finch and chicken orthologs for immune genes and whole - genome comparison ( all genes ) . whole - brain transcriptome comparisons ( est ) between chicken and zebra finch ( axelsson et al . 2008 ) are also included as reference .
awf’s grevy’s zebra research has made considerable progress in gaining a greater understanding of the population . until awf and its partners intensified their work on the grevy ' s zebra over the last several years , there was little awareness about its conservation status at the local , national , and international levels . armed with data on just where the grevy’s zebras live and roam in the landscape , the awf team is now working closely with local communities and authorities to secure key areas for grevy’s zebra conservation .


alosa kessleri , also referred to as the caspian anadromous shad , the blackback , or the black-spined herring , is a species of clupeid fish .

it is one of the several species of shad endemic to the caspian sea basin .

this is an anadromous species which ascends from the caspian to the volga river up to the volgograd to spawn .

before the construction of th volgograd dam it migrated up to the kama and oka tributaries .

few fish enter the terek and ural rivers .

alosa kessleri

some basic population parameters of the black sea shad ( alosa kessleri pontica eichw . )
some basic population parameters of the black sea shad ( alosa kessleri pontica eichw . )
some basic population parameters of the black sea shad ( alosa kessleri pontica eichw . ) [ 1983 ]
freyhof j , kottelat m ( 2008 ) alosa kessleri the iucn red list of threatened species v 2014 . 3
froese , rainer and pauly , daniel , eds . ( 2015 ) .
alosa kessleri
in fishbase . feb 2015 version .
( of alosa pontica kessleri ( grimm , 1887 ) ) froese , r . & d . pauly ( editors ) . ( 2018 ) . fishbase . world wide web electronic publication . , available online at urltoken [ details ]
euryhaline , anadromous , northward migration in spring ( march / april ) , but sometimes as early as february or even january ) , a little distance from the shore . no feeding by a . kessleri kessleri during migration up rivers whereas a . kessleri volgensis feed en route .
( of caspialosa kessleri kessleri ( grimm , 1887 ) ) froese , r . & d . pauly ( editors ) . ( 2018 ) . fishbase . world wide web electronic publication . , available online at urltoken [ details ]
( of clupea kessleri grimm , 1887 ) froese , r . & d . pauly ( editors ) . ( 2018 ) . fishbase . world wide web electronic publication . , available online at urltoken [ details ]
( of caspialosa kessleri bergi tanassiychuk , 1940 ) froese , r . & d . pauly ( editors ) . ( 2018 ) . fishbase . world wide web electronic publication . , available online at urltoken [ details ]
( of clupeonella kessleri ( grimm , 1887 ) ) froese , r . & d . pauly ( editors ) . ( 2018 ) . fishbase . world wide web electronic publication . , available online at urltoken [ details ]
( of caspialosa kessleri ( grimm , 1887 ) ) froese , r . & d . pauly ( editors ) . ( 2018 ) . fishbase . world wide web electronic publication . , available online at urltoken [ details ]
( of caspialosa caspia kessleri ( grimm , 1887 ) ) froese , r . & d . pauly ( editors ) . ( 2018 ) . fishbase . world wide web electronic publication . , available online at urltoken [ details ]
( of caspialosa kessleri volgensis natio imitans berg , 1948 ) froese , r . & d . pauly ( editors ) . ( 2018 ) . fishbase . world wide web electronic publication . , available online at urltoken [ details ]
spawns in rivers . some enter with ripe gonads and spawn in the lower reaches or even delta ( a . kessleri volgensis ) , others enter unripe and reach as much as 500 km upstream . the young descend in late summer and autumn .
spawns in rivers . some enter with ripe gonads and spawn in the lower reaches or even delta ( a . kessleri volgensis ) , others enter unripe and reach as much as 500 km upstream . the young descend in late summer and autumn .
body fairly elongate , more ` herring - like ' than ` shad - like ' . total gill rakers 59 to 155 ( as in a . caspia ) , thick , coarse and shorter than gill filaments in some , long , thin and equal to or longer than gill filaments in others ( i . e . a . kessleri volgensis ) . teeth well developed in both jaws . other caspian shads have less than 50 gill rakers , except a . caspia which is deep - bodied .
dorsal spines ( total ) : 0 ; anal spines : 0 . body fairly elongate , more ` herring - like ' than ` shad - like ' . total gill rakers 59 to 155 ( as in a . caspia ) , thick , coarse and shorter than gill filaments in some , long , thin and equal to or longer than gill filaments in others ( i . e . a . kessleri volgensis ) . teeth well developed in both jaws . other caspian shads have less than 50 gill rakers , except a . caspia which is deep - bodied .
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caspian sea from where adults ascend volga ( only few fish enter ural and terek ) to spawn . earlier reached upriver up to kama and oka systems . migrations now blocked by volgograd dam . there are indications it has formed landlocked populations in volga reservoirs .
still relatively abundant and stable below the volgograd dam where it appears to have found new spawning grounds . juveniles are regularly found in the delta of the volga . in 2000 the estimated number of mature individuals in the caspian was 12 , 000 , 000 ( n . bogutskaya , pers comm . )
habitat : at sea , pelagic , in a wide variety of habitats . migrates to middle reaches of large rivers , spawning close to shores in main channel and in almost - still water bodies such as river bays , river eddies and flood plains . biology : anadromous . migrates upriver to spawn at 4 - 5 years . enters rivers with unripe gonads . some spawn 2 - 4 seasons , but most females die after spawning . spawners appear along the coast in march - april , entering rivers april - may when temperatures reach about 9°c , peaking at 12 - 15°c . spawning run originally lasted 30 - 50 days . spawning starts in may - august when temperature rises above 15°c , and lasts as long as temperatures remain at 15 - 23°c . spawning is most intensive between 4 and 10 p . m . eggs are bathypelagic . spent fish migrate back to the sea to feed . in autumn , they move to the southern part of the sea to overwinter . juveniles migrate to the sea or to estuaries during their first summer , remaining there until maturity . at sea , feeds on a wide variety of zooplankton , crustaceans and small fish .
the damming for the volga river ( main spawning river ) in the 1950 ' s and 1960 ' s , blocked most of the spawning grounds . currently the major threat to the species is commercial and illegal fishing in the caspian sea and at the mouth of the volga during the migration . the flow regulation from the volgograd dam ( which is dependant on energy demand ) is also a threat to the species as the species needs a large flow in april to the beginning june for optimal spawning conditions .
there is a canal which has been constructed to allow fish to pass the volgograd dam , so some fish occasionally get past .
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latin , alausa = a fish cited by ausonius and latin , halec = pickle , dealing with the greek word hals = salt ; it is also the old saxon name for shad =
alli
; 1591 ( ref . 45335 )
marine ; freshwater ; brackish ; pelagic - oceanic ; anadromous ( ref . 51243 ) ; depth range 0 - 85 m ( ref . 188 ) . temperate ; 55°n - 35°n , 42°e - 58°e ( ref . 188 )
europe : caspian sea from where adults ascend volga ( only few fish enter ural and terek ) to spawn . earlier reached upriver up to kama and oka system . migration now blocked by volgograd dam . may have formed land - lock populations in volga reservoirs .
maturity : l m ? , range 32 - 44 cm max length : 52 . 0 cm sl male / unsexed ; ( ref . 188 ) ; common length : 40 . 0 cm sl male / unsexed ; ( ref . 188 ) ; max . published weight : 1 . 2 kg ( ref . 56523 ) ; max . reported age : 8 years ( ref . 56523 )
whitehead , p . j . p . , 1985 . fao species catalogue . vol . 7 . clupeoid fishes of the world ( suborder clupeoidei ) . an annotated and illustrated catalogue of the herrings , sardines , pilchards , sprats , shads , anchovies and wolf - herrings . fao fish . synop . 125 ( 7 / 1 ) : 1 - 303 . rome : fao . ( ref . 188 )
phylogenetic diversity index ( ref . 82805 ) : pd 50 = 0 . 5000 [ uniqueness , from 0 . 5 = low to 2 . 0 = high ] .
bayesian length - weight : a = 0 . 00871 ( 0 . 00556 - 0 . 01363 ) , b = 3 . 05 ( 2 . 92 - 3 . 18 ) , in cm total length , based on lwr estimates for this species & genus - body shape ( ref . 93245 ) .
trophic level ( ref . 69278 ) : 4 . 5 ±0 . 7 se ; based on diet studies .
resilience ( ref . 69278 ) : medium , minimum population doubling time 1 . 4 - 4 . 4 years ( tm = 3 - 5 ; fec = 135 , 000 ) .
prior r = 0 . 64 , 2 sd range = 0 . 42 - 0 . 98 , log ( r ) = - 0 . 45 , sd log ( r ) = 0 . 21 , based on : 1 k , 2 tgen , 1 tmax , 2 fec records
vulnerability ( ref . 59153 ) : low to moderate vulnerability ( 31 of 100 ) .
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froese , r . & d . pauly ( editors ) . ( 2018 ) . fishbase . world wide web electronic publication . , available online at urltoken [ details ]
( of caspialosa volgensis bergi tanassiychuk , 1940 ) froese , r . & d . pauly ( editors ) . ( 2018 ) . fishbase . world wide web electronic publication . , available online at urltoken [ details ]
( of caspialosa volgensis imitans berg , 1948 ) froese , r . & d . pauly ( editors ) . ( 2018 ) . fishbase . world wide web electronic publication . , available online at urltoken [ details ]
52 . 0 cm sl ( male / unsexed ; ( ref . 188 ) ) ; max . published weight : 1 , 200 g ( ref . 56523 ) ; max . reported age : 8 years ( ref . 56523 )
habitat : at sea , pelagic , in a wide variety of habitats . migrates to middle reaches of large rivers , spawning close to shores in main channel and in almost - still water bodies such as river bays , river eddies and flood plains . biology : anadromous . migrates upriver to spawn at 4 - 5 years . enters rivers with unripe gonads . some spawn 2 - 4 seasons , but most females die after spawning . spawners appear along the coast in march - april , entering rivers april - may when temperatures reach about 9c , peaking at 12 - 15c . spawning run originally lasted 30 - 50 days . spawning starts in may - august when temperature rises above 15c , and lasts as long as temperatures remain at 15 - 23c . spawning is most intensive between 4 and 10 p . m . eggs are bathypelagic . spent fish migrate back to the sea to feed . in autumn , they move to the southern part of the sea to overwinter . juveniles migrate to the sea or to estuaries during their first summer , remaining there until maturity . at sea , feeds on a wide variety of zooplankton , crustaceans and small fish .
pelagic - oceanic ; anadromous ( ref . 51243 ) ; freshwater ; brackish ; marine ; depth range 0 - 85 m ( ref . 188 )
depth : 0 - 85m . recorded at 85 meters . habitat : pelagic .
anadromous . fish that ascend rivers to spawn , as salmon and hilsa do . sub - division of diadromous . migrations should be cyclical and predictable and cover more than 100 km .
while the migration upstream is broken , it seems the fish have found new breeding grounds south of the dam , and the population is now abundant .
the species may be threatened by commercial and illegal fishing in the caspian sea and at the mouth of the volga during the migration , though .
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to cite this page : myers , p . , r . espinosa , c . s . parr , t . jones , g . s . hammond , and t . a . dewey . 2018 . the animal diversity web ( online ) . accessed at https : / / animaldiversity . org .
disclaimer : the animal diversity web is an educational resource written largely by and for college students . adw doesn ' t cover all species in the world , nor does it include all the latest scientific information about organisms we describe . though we edit our accounts for accuracy , we cannot guarantee all information in those accounts . while adw staff and contributors provide references to books and websites that we believe are reputable , we cannot necessarily endorse the contents of references beyond our control .
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the richtersveld katydid ( africariola longicauda ) is a species of katydid that is endemic to the richtersveld national park in south africa .

it occurs in semi-arid habitats of the karoo biotope .

it is threatened by livestock grazing and climate change .

richtersveld katydid

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the richtersveld katydid ( africariola longicauda ) is endemic to the richtersveld national park , northern cape province , south africa , and areas immediately adjacent to it .
the park boasts excellent bird watching opportunities , as well as a diverse range of animals including grey rhebok , duiker , steenbok , klipspringer , kudu , hartmann ' s mountain zebra , baboon , vervet monkey , caracal and leopard . the threatened richtersveld katydid is endemic to the area .
this species is known to occur only within the semi - arid habitats of nama and succulent karoo within richtersveld national park .
) is endemic to the richtersveld national park , northern cape province , south africa , and areas immediately adjacent to it .
no specific conservation measures are in place for this species , but it is only known to occur within a protected area , richtersveld national park .
in june 2007 , the
richtersveld cultural and botanical landscape
, just to the south of the national park and an area of equivalent size and beauty , was named a unesco world heritage site . unlike the national park , the richtersveld community conservancy , which forms the core zone of the world heritage site , is not subject to diamond mining and is as a result the more pristine of the two areas .
with water so scarce , life in the richtersveld depends on moisture from the early morning fog . locals call it ' ihuries ' or ' malmokkies ' and it makes survival possible for a range of small reptiles , birds and mammals .
located in south africa ' s northern namaqualand , this arid area represents a harsh landscape where water is a great scarcity and only the hardiest of lifeforms survive . despite this , the richtersveld is regarded as the only arid biodiversity hotspot on earth , with an astonishing variety of plant , bird and animal life ( much of which is endemic ) .
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the greatest threat to this species is habitat destruction caused by livestock over - grazing and climate change .
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part of the area is inscribed on unesco ' s world heritage list due to its cultural values , but remains a favourite amongst nature travellers to south africa , the landscape is sometimes described as
martian
. though barren and desolate at first glance , closer examination reveals the area to be rich in desert lifeforms , with an array of unique species specially adapted for survival .
the northern part of the area was proclaimed as a national park in 1991 after 18 years of negotiation with the local community , who continue to live and graze their livestock in the area . it has an area of
having been recorded in mid - summer . nights are cool and bring with them heavy dew . this unique climate is what has fostered such a unique ecosystem .
home to c . 650 plant species , this park boasts the world’s largest diversity of succulents and represents an example of one of the most interesting mega - ecosystems in the world , the karoo .
the area is home to a number of rather unusual plants , many of which are found nowhere else on earth . chief among these is the
halfmensboom
( pachypodium namaquanum welw . ) . literally translated , this means
half - person tree
and the name comes from the tree ' s resemblance to the human form ; its top consists of a grouping of thick , crinkled leaves , generally leaning northwards , which can make it look almost like a human head .
these trees are revered by the indigenous nama people as the embodiment of their ancestors , half human , half plant , mourning for their ancient namibian home .
also found here are gnarled kokerbooms , other tall aloes , and a variety of other unusual succulents , such as aloe pearsonii .
and is entirely responsible for management of the world heritage site . both areas are used by traditional nomadic / transhumance herders to practice their ancient lifestyle and culture . it is the last place where the traditional way of life of the
( of whom the nama are the largest surviving clan ) who once occupied the entire south - western part of africa , survives to any great extent . the
is declared under the cultural criteria of the world heritage convention although it is recognised that the cultural values of the community and their continued existence are intrinsically connected to the environment .
for official site names , see each article or the list of world heritage sites in south africa .
this article is issued from wikipedia - version of the 3 / 3 / 2016 . the text is available under the creative commons attribution / share alike but additional terms may apply for the media files .
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