Canis anthus

Geographic Range
African golden wolves (Canis anthus), which were considered the same species as Eurasian golden jackals (Canis aureus) until 2015, are found across northern Africa. Their range extends east to west from Somalia to Senegal and north to south from Algeria to Kenya. Thus, golden wolves occupy the Palearctic and Ethiopian faunal regions. Because golden wolves are a highly mobile species, their wide range was likely colonized naturally. Their historic range is unknown. (Karssene, et al., 2018; Koepfli, et al., 2015; Moehlman and Hayssen, 2018; Yirga, et al., 2017)
Habitat
African golden wolves live in elevations from 0 to nearly 5,000 m. In the eastern part of their range, golden wolves primarily live in high elevations from 2,200 to 4,620 m. However, in the Sahara Desert, they can be found anywhere between sea level and 4,459 m, in isolated mountains, which are estimated to be refugia for golden wolves in the face of climate change. (Brito, et al., 2009; Yalden, et al., 1996)
Because of their generalist behavior and tolerance of dry habitats, golden wolves can be found in a wide range of habitats, including grasslands, coniferous temperate forests, invasive Eucalyptus forests, mangroves, dry plateaus, savannas, deserts, and semi-arid environments. However, their preferred habitat seems to be grasslands. Though golden wolves can occupy many habitats, the limiting factor seems to be access to water sources. In Tunisia, for example, differences in golden wolf distribution were best explained by the availability of water. In the Sahara Desert, golden wolves were found most frequently in areas with an annual rainfall of over 1,000 mm and were one of the few canids found in temperatures below 10°C. The only known unsuitable habitats seem to be extremely arid regions and dune fields. (Brito, et al., 2009; Karssene, et al., 2019; Moehlman and Hayssen, 2018; Yalden, et al., 1996)
Golden wolves do not occur solely in natural habitats: depending on the area, golden wolves can rely a great deal on human settlements, such as agricultural fields and rural areas. A study in northern Ethiopia found that golden wolf density can actually increase with increasing human density, rather than decreasing to avoid human activity, as is documented for many other canids. This is thought to occur because, in these areas, humans have depleted much of the native prey sources on which golden wolves rely. Therefore, golden wolves resort to feeding on human waste products in these areas. Golden wolves are thus urban exploiters, suggesting that golden wolves may thrive in the face of a growing human population. (Yirga, et al., 2017)
Physical Description
African golden wolves were originally considered to be the same species as Eurasian golden jackals (Canis aureus). However, a study comparing mitochondrial DNA, microsatellites, sex chromosomes, and whole genomes showed that golden wolves have a unique gene pool from golden jackals and therefore constitute a different species. African wolves (Canis lupaster) were also concluded to be the same species as African golden wolves. This study also found that African golden wolves are more closely related to gray wolves (Canis lupus) than golden jackals. This close relation to gray wolves is interesting, considering that no gray wolves are found in Africa, but it is speculated that much of the canid diversity in Africa originated from Eurasian “wolf-like” colonizers that eventually went extinct. The first taxonomic description of an African golden wolf by Frédéric Cuvier in 1820 was also the first account that used the binomial nomenclature used for African golden wolves today: Canis anthus. Additionally, though Cuvier recognized African golden wolves as a separate species from golden jackals, the scientific community did not consider them as such until Koepfli et al.’s paper was published in 2015. (Koepfli, et al., 2015; Tedford, et al., 2009)
Golden wolves generally have an overall coat color of golden or pale yellow, dark tawny, or gray, depending on their local habitat. For example, the first golden wolf ever described lived in mountainous terrain and had a gray coat, whereas golden wolves in desert habitat tend to be golden. Regardless of overall coat color, most golden wolves have yellow markings and individual hairs with black, white, and tan bands. Their legs, tails, the back of their ears, and the top of their muzzles are all tan in color, and a back stripe runs down the upper third of their tails, which have black tips. Their throats, chests, stomachs, the inner sides of their legs, and the undersides of their jaws are white. Their hair is longest on their necks and tails, shortest on their heads and legs, and of intermediate length on the rest of their bodies. Hair runs from front to back across the whole body except between the front legs, where it instead runs back to front. Additional morphological characteristics include bushy tails, a thick under wool during winter, pale yellow to amber eyes, 7 to 8 mammary glands on females, and a dental formula of i 3/3, c 1/1, p 4/4, m 2/3. (Koepfli, et al., 2015; Moehlman and Hayssen, 2018)
Some sexual dimorphism occurs in golden wolves, mostly in terms of body size. Males have the same coloring and hair patterns as females, but are larger in size: males have a head and body length of 75 to 89.3 cm, a tail length of 20 to 34.7 cm, and weigh 6.3 to 15 kg. Females have a head and body length of 68 to 82.2 cm, a tail length of 20 to 29 cm, and weigh 6.5 to 10 kg. In general, females have 12% less body mass than males. There is also some sexual dimorphism in skull length in populations in East Africa, but not in North African populations. (Moehlman and Hayssen, 2018)
Golden wolves in East Africa are smaller than golden wolves in West Africa, but otherwise look alike morphologically. There are also some small seasonal morphological differences, such as growing thick undercoats during winter and the emergence of a faint “black saddle” on their backs during some seasons. Overall, however, adult golden wolves look more or less the same, though individual identification may be possible by differences in the white markings on a their chests and throats. Even between age classes, golden wolves look very similar; adults can only be differentiated from juveniles by skeletal features. Adults have a high sagittal ridge on the front of their skulls that juveniles lack, and adults exhibit more tooth wear than young golden wolves. (Koepfli, et al., 2015; Moehlman and Hayssen, 2018)
Compared to Eurasian golden jackals (Canis aureus) - which scientists originally believed were the same species as golden wolves - African golden wolves look very similar in craniodental anatomy, size, and color. However, golden wolves have smaller muzzles and premolars, larger molars, and narrower, more pointed canines than golden jackals. Additionally, the entire lower third of the tails of golden jackals is black, whereas the tails of golden wolves are only black on their tips. The two species also differ geographically, as golden jackals are only found in Europe and golden wolves are only found in Africa. (Koepfli, et al., 2015)
On the eastern end of their range, golden wolves coexist with silver-backed jackals (Canis mesomelas) and side-striped jackals (Canis adustus), both of which are roughly the same size as African golden wolves. However, there are visible morphological differences between the three species: silver-backed jackals are easily identified by their red sides and legs and the silver “saddles” they have on their backs, and side-striped jackals have shorter ears, a gray stripe on their sides, and white-tipped tails. In comparison, golden wolves do not have a saddle, except for a vague black one in some seasons. They are also more gray and tan than red, do not have a side stripe, and have black-tipped tails. (Moehlman and Hayssen, 2018)
Sexual Dimorphism
male larger
Range mass
6.3 to 15 kg
13.88 to 33.04 lb
Range length
68 to 89.3 cm
26.77 to 35.16 in
Reproduction
African golden wolves are monogamous, like many other canid species, though this can be somewhat flexible depending on the abundance of resources and shifting population characteristics. Pair bonds last for a lifetime, and a group will thus consist of the mated pair and their previous offspring, which help to raise young. When defending their territory, mated pairs will fight off intruders intrasexually: males attack other males and females attack other females. It is speculated that this may occur because an individual male wants to make sure he is the only one mating with his female, to ensure the pups he helps raise are his. Meanwhile, an individual female wants to make sure her male does not mate with other females, so that he will fully invest in helping to raise her pups. Thus, territoriality may help enforce monogamous pairs. (Moehlman, 1987; Moehlman and Hayssen, 2018)
Both male and female golden wolves reach reproductive maturity at 10 to 11 months of age. Their breeding season is from October to December, with parturition occurring from December to March, sometimes even stretching on into April and May. Copulatory ties last for a few minutes, followed by a gestation period of about 63 days. Litter sizes can range from 1 to 9 pups, averaging around 6 pups per litter. (Moehlman, 1987; Moehlman and Hayssen, 2018)
At birth, golden wolf pups are around 189 g. They are born blind and it takes 8 to 11 days for their eyes to open. Tooth eruption also occurs at 11 days. Golden wolf pups are born in underground dens, in which they stay until they are three weeks of age. Dens can have multiple openings, which are about 2 to 3 m long and about 1 m deep. Mothers stay in their dens with their pups and are supplemented by their mates. In some families, 11-to-18-year-old offspring from previous litters help raise new pups. The presence of these "helpers" has been shown to increase pup protection and provisioning, and thus survival. Both parents and their helpers assist in socializing the pups. (Moehlman, 1987; Moehlman and Hayssen, 2018)
Even once pups emerge from their dens, they still rely on milk from their mother. However, they are also introduced to regurgitated food during this time. This food comes from their mothers and other adults in the group. Pups remain near their dens until they wean at 8 to 10 weeks of age. They begin assisting actively with foraging around 14 weeks of age. About 70% of pups will stay with their parents for up to two years and become helpers. During this time, they will not engage in breeding activity, even when they reach sexual maturity. (Moehlman, 1987; Moehlman and Hayssen, 2018)
Only 30% of pups disperse before the next litter is born. It is speculated that most pups do not disperse right away because, due to high population densities at which golden wolves live, young pups would have a hard time finding a mate and establishing a territory of their own. However, once a juvenile does disperse from its family group, it is not yet known how it then finds a mate and establishes its own territory. (Moehlman, 1987)
As typical of canids, male golden wolf parental investment is high. Mated pairs are monogamous and raise their young together. Between birth and weaning, pups rely completely on the milk of their mothers. However, their fathers and previous offspring from the mating pair, will bring food back for mothers and defend dens. Both parents also assist in socializing the pups and, after the pups are weaned, regurgitate food for them. (Moehlman, 1987; Moehlman and Hayssen, 2018)
Lifespan/Longevity
The maximum known lifespan of an African golden wolf in the wild was observed to be 14 years; in captivity, the maximum lifespan is 18 years. However, usual lifespan in the wild ranges from 6 to 8 years, with an average lifespan of 7 years. Many golden wolves die as pups, as they are especially susceptible to disease and den flooding at this time. Little is known about what limits the lifespan of adults. (Moehlman, 1987; Moehlman and Hayssen, 2018)
Range lifespan Status: wild
14 (high) years
Range lifespan Status: captivity
18 (high) years
Typical lifespan Status: wild
6 to 8 years
Behavior
African golden wolves are solitary, until they find a mate. Once a pair bond is formed, that pair stays together for life. The group size associated with a mating pair will grow and swell. This depends on how many pups they have and how many offspring stay to help raise the next batch of pups. In summary, golden wolves typically live in groups of two, though this number can increase with the presence of pups and helpers.
Strong intraspecific food competition usually selects against larger group sizes, though when food is abundant, large groups have been observed sharing a scavenged carcass. (Moehlman, 1987; Moehlman and Hayssen, 2018)
Golden wolves are primarily diurnal - they are mostly active during the day, dawn, and dusk, and are not normally seen at night. Golden wolves are also highly mobile, with males seeming to move farther than females. One male was documented to move at least 230 km - with a high of 465 km - in 98 days. Additionally, in Tunisia there is high genetic diversity among golden wolves, suggesting that connectivity and dispersal capabilities are high between populations. Not much is known about how golden wolves find one another, including mates, or how they interact with non-family conspecifics. (Karssene, et al., 2018; Karssene, et al., 2019; Moehlman and Hayssen, 2018; Yirga, et al., 2017)
Home Range
Golden wolves are territorial and generally keep territories of about 0.39 to 5 km^2, though they have also been documented to stray past territorial borders in order to feed on carcasses. Territories are nestled within larger home ranges, the size of which depends on the age of individuals and the type of habitat.
Juveniles tend to have a much larger home range than adults, because of their need to spread out in search of mates and territory of their own. In woodland habitats, adult pairs have an average home range of 2.4 km^2, while dispersing juveniles have a much bigger home ranges, ranging from 5.6 to 21.7 km^2. Home range size in mountain habitats is much more variable, with adults having home ranges anywhere between 7.9 and 48.2 km^2 and dispersing juveniles having home ranges anywhere between 24.2 and 64.8 km^2. Both members of an adult pair will mark and defend their territory. They keep strict boundaries, though territories tend to overlap when individuals are part of a social group. Territories are generally held for about 8 years. (Moehlman and Hayssen, 2018)
Communication and Perception
Scent markings and vocalizations are the primary ways that African golden wolves communicate with each other. These forms of communication are important for marking territory, mating, predator defense, and locating family members. These actions may be coupled with other signals, such as visual displays. For example, when an individual golden wolf marks its territory, it will urinate on specific landmarks with a raised leg, rather than in a squatting position, to show any golden wolves that may be watching that it is the holder of this particular territory.
African golden wolf vocalizations consist of howls, used for finding family members and asserting dominance, and growls and barks, which are used to warn family members of approaching predators. Barks are also used to stay in contact with group members during hunts for larger prey. Greeting ceremonies and grooming are also important ways of socializing. (Eaton, 1969; Moehlman and Hayssen, 2018)
Food Habits
African golden wolves primarily feed on wild boars (Sus scrofa) of all ages, though golden wolves likely only feed on adult boars as carrion, due to the dangers of actively hunting adult boars. Plant material also makes up a significant part of the diets of golden wolves. This includes various fruits, seeds, leaves and grasses for digestion and a source of water. Rabbits (Oryctolagus cuniculus) and livestock such as domestic sheep (Ovis aries) are also fairly common, as well as hares (Lepus capensis) and cats (Felis lybicalcafus) to a lesser extent. They have also been documented to eat birds (both wild and domesticated), rodents, and, more rarely, beetles. Thus, African golden wolves can be categorized as omnivores. (Amroun, et al., 2006; Eddine, et al., 2017; Karssene, et al., 2019)
Adult pairs hunt together, but otherwise most golden wolves hunt alone. Individual golden wolves have been documented bringing down ungulates 4 to 5 times larger than themselves, though the success rate of mating pairs is higher than that of lone individuals. Adult pairs are also able to go after larger prey, such as Thomspon’s gazelle (Eudorcus thomsonii) and Abdim’s storks (Ciconia abdimii). If food is widely available, groups of up to 18 have been documented scavenging carcasses, but no documentation has been made of golden wolves hunting in large groups like their close relatives, gray wolves (Canis lupus). (Moehlman and Hayssen, 2018)
To hunt rodents, golden wolves use their ears to pinpoint the exact location and either leap through the air to catch them or dig them out of their burrows. For ungulate prey, golden wolves generally focus on young, old, or injured individuals. They will chase these weaker individuals away from the rest of the herd, like many other canids. Golden wolves cache any leftovers for later. When a family group is on the hunt they will spread out rather than stay bunched together, with distances of a few hundred meters between each individual. They bark in order to stay in contact with one another during the hunt. (Eaton, 1969; Moehlman and Hayssen, 2018)
Predation
Spotted hyenas (Crocuta crocuta) are known to kill and eat African golden wolves in East Africa. Hyenas will often try to come into golden wolf dens to eat pups; when golden wolves see a hyena approaching their dens, they give a warning yowl, which alerts all of the adults nearby to chase the hyena away and bite its rump and genitals. Honey badgers (Mellivora capensis) have also been seen near golden wolf dens, but the adults have always chased them away before actual predation could be documented. Humans are also known to kill golden wolves in response to livestock predation. Besides aggressive actions by the adults guarding the den, not much is known about golden wolf anti-predator behavior. (Eddine, et al., 2017; Moehlman and Hayssen, 2018)
Ecosystem Roles
Due to the widespread loss of many large carnivores in northern Africa, African golden wolves have become more or less the top predator. They are also shown to be opportunists and generalists, allowing them to spread widely across the landscape into many different ecosystems. One consequence of this is that they may be putting a large exploitative competition pressure on other predators, such as the common genet (Genetta genetta). Golden wolves are also speculated to compete exploitatively with fennec foxes (Vulpes zerda) and red foxes (Vulpes Vulpes) and appear to be the superior competitor, as foxes of both species have been shown to abandon water sources and hide whenever golden wolves approach. Because of this competition, it is believed that fennec foxes began to occupy more sandy areas that were less favorable to golden wolves and both fox species shifted to nocturnal activity to avoid golden wolves. Golden wolves are also known to have dietary overlap with black-backed jackals (Canis mesomelas) and side-striped jackals (Canis adustus) in East Africa. The degree to which this competition impacts these three species has yet to be documented. (Amroun, et al., 2006; Eddine, et al., 2017; Karssene, et al., 2019; Moehlman and Hayssen, 2018)
Predation by golden wolves may help control rodent and boar populations. They are also scavengers, and thus are important for cycling energy and nutrients throughout their ecosystem. Highly mobile species such as golden wolves are especially important in providing these services across a wide range of systems. Thus, it is likely that golden wolves provide these vital ecosystem services. (Amroun, et al., 2006; Eaton, 1969; Eddine, et al., 2017; Inger, et al., 2016)
Golden wolves seem to have a commensalistic relationship with cheetahs (Acinonyx jubatus), as documented in Kenya by Eaton (1969). When golden wolves encounter cheetahs, they will search the vicinity for a kill and, if they find one, scavenge off of it. If there is no kill immediately nearby, golden wolves will remain around the cheetahs for a while, following their movements until either a kill is made or the cheetahs remain inactive for too long and the golden wolves move on. Considering that golden wolves only feed on carcasses abandoned by cheetahs, this does not seem to be a parasitic relationship, as cheetahs are not prohibited from getting as much as they need to eat. There are also no records of cheetahs chasing golden wolves away from kills, suggesting that cheetahs are unaffected by their scavenging.
Additionally, cheetah and golden wolf family groups have been documented living near one another without fighting over resources or killing offspring. This suggests that there is little to no competitive relationship between the two species. In fact, it has been documented that, occasionally, golden wolves assist cheetah kills by distracting a herd while the cheetah sneaks up from behind, suggesting the relationship may be mutualistic. However, Eaton (1969) speculates that this behavior likely does not occur outside of their study area because of high competition between scavengers in other areas. Indeed, in Serengeti National Park, golden wolves are rarely observed on carcasses, and scavenged meat makes up only a small portion of their diet. This is thought to occur because of the competition with other scavengers and the danger posed to golden wolves by other scavengers and larger predators that made the kill. (Eaton, 1969; Hunter, et al., 2006)
Several golden wolves were shown to have antibodies for canine adenovirus, a liver infection, and canine coronavirus, a highly contagious intestinal disease. Both of these diseases can be easily spread to other canids through feces. Other individuals have tested positive for canine parvovirus, another intestinal disease that can spread to other canids, and canine distemper virus, a virus that affects the respiratory, gastrointestinal, and nervous systems. Canine distemper virus is an especially noteworthy disease because it can infect all sorts of other animals, including other canids, felids, and some primates. Other parasites include Coccidia, which are intestinal parasites that can affect canids and felids, as well as hookworms, tapeworms, mange, flukes, ticks, and Toxocara canis, another intestinal parasite that affects canids. (Gherman and Mihalca, 2017; Moehlman and Hayssen, 2018)
Economic Importance for Humans: Positive
It has been shown that organic waste from humans is a major food source for African golden wolves, which means they can assist with waste removal. In fact, they have been documented in northern Ethiopia, along with spotted hyenas (Crocuta crocuta), to remove organic waste that may be infected, therefore sanitizing rural areas. Studies of golden wolves have also given us a better understanding of how the domestication of dogs may have taken place. (Amroun, et al., 2006; Eaton, 1969; Yirga, et al., 2017)
Positive Impacts
research and education
Economic Importance for Humans: Negative
Similar to problems with gray wolves (Canis lupus) in the United States, predation by African golden wolves on livestock is a huge issue for rural communities in Africa. Golden wolves have been predating increasingly on livestock, and thus farmers have started retaliating. Between 2014 and 2015, farmers killed over 200 wolves. This is a serious problem in some areas, like Tunisia, where livestock has been documented to make up a significant part of the diets of golden wolves. However, relative frequency of livestock in their diet seems to primarily correlate with degree of livestock protection, suggesting that tighter management of livestock may be all that is required to solve this problem. (Eddine, et al., 2017; Karssene, et al., 2019)
Additionally, golden wolves are hosts for the protozoan parasite Babesia gibsoni, which is commonly found in domestic dogs. Golden wolves are also reservoirs to Hepatozoon canis, as well as fleas. If golden wolves continue to become more frequent in human settlements, their presence could increase the spread of these parasites, and all of the other diseases mentioned above. These diseases could be spread to pets, other golden wolves and canids that congregate in human areas, and even livestock. (Gherman and Mihalca, 2017; Maronpot and Guindy, 1970; Yirga, et al., 2017)
Some diseases that golden wolves carry, like flatworms, have been shown to also infect humans. Golden wolves are reservoirs to parasites like filarioids, which are responsible for pink eye and various lung diseases in humans, and guinea worms, which cause severe pain where the worm migrates as well as nausea and vomiting in humans. An increase of golden wolves in human settlements may lead to an increase in infections, which could be especially devastating for rural communities that may not have the means to treat them medically. (Gherman and Mihalca, 2017)
Conservation Status
African golden wolves are listed as least concern but declining on the IUCN red list, and are not listed under the CITES appendices or the US Endangered Species Act. Durant et al. (2011) also documented a significant long-term decline in golden wolf populations in the Serengeti. Reasons for their decline may be due to overkill by hunters and poaching, both of which occur in the range of golden wolves, and retaliatory killing by farmers over predation of livestock. All of this is aided by the increased stock of automated weapons in places like Ethiopia. It is speculated that many golden wolves are also being affected by predator control programs for other species, primarily through the consumption of poisoned carcasses. Additionally, vehicular collisions were the source of death for at least fifty golden wolves in the Sahara Desert, which will likely have larger implications as countries develop and roads become more intricate and widespread. (Brito, et al., 2009; Durant, et al., 2011; Eddine, et al., 2017; Moehlman and Hayssen, 2018; Yalden, et al., 1996)
Some countries in the range of golden wolves are currently or frequently in a state of war and other extreme conflict, which leads to increased habitat loss and fragmentation. Even the most remote regions, which usually experience little human presence, are affected by war, as opposing sides use these areas to gain tactical advantage. This pushes animals from places that may have once served as refugia. Because of this loss of habitat and refugia, many animals are locally extirpated. Additionally, the number of illegal killings were shown to increase drastically after a couple of years of war. The list of species killed likely includes golden wolves, because of their status as livestock predators. Outside of war-torn areas, widespread habitat loss due to human settlement, expansion, and over-grazing by livestock also occurs in the range of golden wolves. However, these are unlikely to have as large of an impact on golden wolf populations compared to the factors discussed above. Human settlements are less threatening to golden wolves likely because of how opportunistic they are, and due to their demonstrated ability to thrive in anthropogenic landscapes. (Amroun, et al., 2006; Brito, et al., 2018; Eddine, et al., 2017)
Part of the range of golden wolves is encompassed in the Tlemcen Hunting Reserve in Algeria. There are also several national parks scattered around Ethiopia and Eritrea, though many of these are poorly staffed and thus inadequately enforced. It is likely, however, that golden wolves receive at least some protection when considering all of the parks cumulatively. (Eddine, et al., 2017; Yalden, et al., 1996)
Contributors
Glossary
living in sub-Saharan Africa (south of 30 degrees north) and Madagascar.
Palearctic
living in the northern part of the Old World. In otherwords, Europe and Asia and northern Africa.
acoustic
uses sound to communicate
agricultural
living in landscapes dominated by human agriculture.
altricial
young are born in a relatively underdeveloped state; they are unable to feed or care for themselves or locomote independently for a period of time after birth/hatching. In birds, naked and helpless after hatching.
carrion
flesh of dead animals.
causes or carries domestic animal disease
either directly causes, or indirectly transmits, a disease to a domestic animal
chemical
uses smells or other chemicals to communicate
crepuscular
active at dawn and dusk
desert or dunes
in deserts low (less than 30 cm per year) and unpredictable rainfall results in landscapes dominated by plants and animals adapted to aridity. Vegetation is typically sparse, though spectacular blooms may occur following rain. Deserts can be cold or warm and daily temperates typically fluctuate. In dune areas vegetation is also sparse and conditions are dry. This is because sand does not hold water well so little is available to plants. In dunes near seas and oceans this is compounded by the influence of salt in the air and soil. Salt limits the ability of plants to take up water through their roots.
diurnal
active during the day, 2. lasting for one day.
female parental care
parental care is carried out by females
fertilization
union of egg and spermatozoan
forest
forest biomes are dominated by trees, otherwise forest biomes can vary widely in amount of precipitation and seasonality.
male parental care
parental care is carried out by males
monogamous
Having one mate at a time.
mountains
This terrestrial biome includes summits of high mountains, either without vegetation or covered by low, tundra-like vegetation.
native range
the area in which the animal is naturally found, the region in which it is endemic.
nomadic
generally wanders from place to place, usually within a well-defined range.
omnivore
an animal that mainly eats all kinds of things, including plants and animals
scent marks
communicates by producing scents from special gland(s) and placing them on a surface whether others can smell or taste them
seasonal breeding
breeding is confined to a particular season
sedentary
remains in the same area
social
associates with others of its species; forms social groups.
solitary
lives alone
stores or caches food
places a food item in a special place to be eaten later. Also called "hoarding"
suburban
living in residential areas on the outskirts of large cities or towns.
swamp
a wetland area that may be permanently or intermittently covered in water, often dominated by woody vegetation.
tactile
uses touch to communicate
temperate
that region of the Earth between 23.5 degrees North and 60 degrees North (between the Tropic of Cancer and the Arctic Circle) and between 23.5 degrees South and 60 degrees South (between the Tropic of Capricorn and the Antarctic Circle).
terrestrial
Living on the ground.
territorial
defends an area within the home range, occupied by a single animals or group of animals of the same species and held through overt defense, display, or advertisement
tropical
the region of the earth that surrounds the equator, from 23.5 degrees north to 23.5 degrees south.
tropical savanna and grassland
A terrestrial biome. Savannas are grasslands with scattered individual trees that do not form a closed canopy. Extensive savannas are found in parts of subtropical and tropical Africa and South America, and in Australia.
savanna
A grassland with scattered trees or scattered clumps of trees, a type of community intermediate between grassland and forest. See also Tropical savanna and grassland biome.
temperate grassland
A terrestrial biome found in temperate latitudes (>23.5° N or S latitude). Vegetation is made up mostly of grasses, the height and species diversity of which depend largely on the amount of moisture available. Fire and grazing are important in the long-term maintenance of grasslands.
urban
living in cities and large towns, landscapes dominated by human structures and activity.
visual
uses sight to communicate
viviparous
reproduction in which fertilization and development take place within the female body and the developing embryo derives nourishment from the female.
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.
This material is based upon work supported by the
National Science Foundation
Grants DRL 0089283, DRL 0628151, DUE 0633095, DRL 0918590, and DUE 1122742. Additional support has come from the Marisla Foundation, UM College of Literature, Science, and the Arts, Museum of Zoology, and Information and Technology Services.