Exam 2 Flashcards
DDT
Pesticide that thinned egg shells of birds that ate the plants
The idea behind the pesticide was to stop reproduction.
Persecution for DDT
Was from humans who thought bald and golden eagles were harming crops and livestock.
Section 10
Provisions that allow incidental take.
Listing Discrimination
Section 4 of ESA.
Listing is based on best scientific and commercial dat at that time.
Listing is not suppose to consider economic impact or other social/political/etc. factors
Normally USFWS list species but organizations can petition to get species listed.
Critical Habitat (Section 3 Part 5a)
Specific area within the geographical range occupied by the species at the time it is listed…on which are found those physical and biological.
Recovery Plan
Once a species is listed USFWS is required to establish a recovery plan and recovery team.
Must incorporate: site-specific actions, objective, measurable criteria, estimate time required and cost to carry out measures necessary to achieve goals
Section 7
Requirements for interagency consultation
Federal agencies must consult with USFWS to ensure federal actions don’t affect threatened and endangered species/ critical habitat.
Marine Mammal Protection Act 1972
One of the most powerful acts protecting a particular group of wildlife.
Certain species and population stocks of marine mammals are or may be in danger of extinction or depletion as a result of human activities
Species (ESA)
Includes any subspecies of fish, wildlife, or plants and any distinct population segment of any species of vertebrate fish and wildlife which interbreeds when mature.
Take
Harass, harm, pursue, hunt, shoot, wound, kill, trap, collect, capture or to attempt any of the previous in such conduct.
Incidental Take
permit issued under Section 10 of the United States Endangered Species Act (ESA) to private, non-federal entities undertaking otherwise lawful projects that might result in the take of an endangered or threatened species.
Lacey Act 1900
Required Secretary of Agriculture to ensure preservation and restoration of game and wild birds
Species Concepts
Biological: actually/potentially interbreeding natural population that are reproductively isolated from other such groups
Cohesion: inclusive group of organisms having potential for genetic/demographic exchangeability
Evolutionary: single lineage of ancestor descendent population that maintains its ID from other such lineages and has its own evolutionary tendencies and historical fate.
Phylogenetic: smallest aggregation of population (sex) or lineages (asexual) diagnosable by a unique combo of character states in comparable individuals
Recognition: most inclusive population of individual biparental
organisms that share a common fertilization system.
Ecological: lineage occupying an adaptive zone minimally different from that of any other linage in its range and which evolves separately from all,other lineages outside its range.
Threatened Species (Section 3 Part 6)
Any species which is likely to become an endangered species within foreseeable future throughout all or majority of its range.
Endangered Species Act (ESA 1973)
Central element of federal wildlife law Controversial Mandates species protection Species recovery plans Designation of critical habitat
Scienter
Guilty knowledge or evidence
individual knowingly violates provisions of the act
Hybridization (Introgression)
Population are not protected by ESA
Many organisms especially plants are descended from hybrids
Population has become independent evolutionary unit whose persistence does not depend on continuing hybridization.
The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES)
international agreement between governments.
Its aim is to ensure that international trade in specimens of wild animals and plants does not threaten their survival.
Risk
Probability something will occur
Risk Assessment
Estimate likelihood of occurrence