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Endangered Species, this definition
could mean that the rate at which animals are dying is greater than the
rate of animals been produced.
Different endangered species appear on different endangered species lists.
You'll find the American white pelican, for example, on Alberta's list,
but not on the national list from the Committee on the Status of
Endangered Wildlife in Canada (COSEWIC). Different populations of
Endangered Species have different categories (following information from
the Alberta Action network)
RED List
These species are in serious trouble, a total of 17. Their
populations are no longer viable or at immediate risk of declining to
nonviable levels in Alberta. They have, or will be considered for,
designation as endangered species under the Wildlife Act.
BLUE List
These
species are also at risk-18 of them-but the threats they face are less
immediate. Species that are generally suspected of being vulnerable, but
for which information is too limited to clearly define their status, have
also been placed in this category.
Yellow List
These
are sensitive species that are not at risk. They may require special
management to address concerns related to low natural populations, limited
provincial distribution or particular biological features (e.g., colonial
nesting, narrow habitat requirements). They include the common loon,
plains garter snake and moose.
Green List
These
species are not at risk. Their populations are healthy and their key
habitats are generally secure. This category also includes non-resident
migrants and species whose occurrence in Alberta is accidental or
peripheral to their normal distribution. Examples of green species are the
ruffed grouse and black bear.
STATUS UNDETERMINED
This category lists species not considered at risk, but for which
insufficient information is currently available to determine an accurate status.
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