### species:

Hookworm specie
* Most hookworm species can penetrate the skin.
* are worldwide in distribution, mostly in areas with moist, warm climates.

Indicator specie
* are creatures that tend to associate with particular habitats.
* can be sub-classified as keystone or umbrella species.

Indigenous specie
* are incapable of combating foreign diseases resulting in decreased populations.
* occur all over the world indicating that it is indeed and early form of dog.

Individual specie
* Many individual species are uniquely important as indicators of environmental quality.
* Most individual species are restricted to their natural hosts.
* have a repertoire of behaviours associated with courtship.
* respond in different ways to local soil and management conditions.

### species:

Invasive specie
* Many invasive species cause dramatic changes to basic ecosystem functions and processes
  - destroy habitat , the places where other plants and animals naturally live
  - get a foothold due to human intervention, scientists say
  - have N-fixing symbioses
  - thrive because they outcompete native species for food
* Most invasive species arrive in association with human activities or transport
  - live in balance in their native environments
* Some invasive species can cause or carry disease
  - pose threats to human health, agriculture, industry, and recreation
* affect virtually every watershed in North America.
* are a big problem with prairies.
* are also a serious threat to native ecosystems and species
  - capricious
  - rampant in the ecoregion
  - creatures that have multiplied to the point that they are problem
  - either widespread or have a restricted range in Connecticut
  - everywhere, from forests and prairies to mountaintops and river mouths
  - one of the main factors behind large-scale extinctions
  - organisms that have invaded established ecosystems
  - responsible for significant ecosystem destruction all over the world
  - the second leading threat to forest bio-diversity
* can affect entire coastlines when they reproduce and spread
  - how contaminants are biomagnified within a food web
* can also damage property
  - threaten coral reefs
* can be a threat to indigenous endangered species
  - devastating to American agriculture
  - plants, animals or other organisms
  - cause several different kinds of changes in ecosystems
  - out compete native species and reduce biodiversity
  - overrun an area quickly
  - threaten existing underwater grass beds
* capitalize on many techniques in order to invade ecosystems.
* cause more damage than some pollutants
  - unnatural forms of succession in varying levels of severity
* disrupt the balance of a food chain unique to acommunity and increase biodiversity.
* have the potential to harm their new environments
  - wreak havoc on American forests
* introduced into an area can spell danger for reptiles as well
  - to new areas can spell real danger for reptiles
* phrase with several definitions.
* pose a serious threat to native plant and animal species
  - another problem, competing with native species for food and habitat
  - huge threats to the environment
* push aside native vegetation and reduce diversity of plant cover.
* represent a serious threat to natural areas.
* threaten biodiversity, habitat quality, and ecosystem function.
* travel in the cargo of ships, planes, trains.
+ Prairie restoration, Invasive plants and trees
  * Invasive species are a big problem with prairies. Since fires cannot burn freely, many new species are taking over, and preventing sunlight from reaching shorter plants. In the United States, European buckthorn is a common problem. Garlic mustard is another. Often areas that once held a hundred different species of plants now only has three or four species.