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Rare & Endangered Species
Rare & Endangered Species
11
Plant Sciences
Undergraduate 3
12/17/2008

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Cards

Term
Generally three factors play a role in defining rarity
Definition
geographic range,
habitat specificity
local population size
Term
Rabinowitz (1981) has used three factors to help define rarity :
Definition
Geographic range (1&2 large, or 3&4 small)
Habitat specificity (1&3 wide, or 2&4 narrow)
Local population size (A: large & dominant somewhere, or B: small & non-dominant)
Term
Seven of the eight combinations could be classified as rare. The exception would be
Definition
A1
Term
Most endangered species would fall into
Definition
the A4 or B4 categories!!!
Term
At the National (federal) level, endangered and threatened species have been defined legally by the
Definition
Endangered Species Act of 1973
Term
Endangered
Definition
A species that is in imminent danger of extinction throughout all or a significant portion of its range
Term
Threatened
Definition
A species that is likely to become endangered in the foreseeable future
Term
Stated purpose of Endangered Species Act
Definition
to protect species and also "the ecosystems upon which they depend."
Term
There are ~_ federally listed plant species (i.e. threatened or endangered) that occur in Georgia
Definition
25
Term
There are ~___ plant species listed by Georgia as “species of concern”
Definition
103
Term
Three rare georgia oaks
Definition
Arkansas oak, georgia oak, oglethorpe oak
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