BSC 340 exam 2 questions with accurate answers
adaptive radiation Ans✓✓✓ few immigrants evolve to fill niches.
-ex. Darwin's finches
biotic potential Ans✓✓✓ the capacity of an individual population to
reproduce under optimal conditions
captive breeding Ans✓✓✓ -loss of individuals should not jeopardize
wild population
-replicate natural habitat
-avoid dependency (imprinting) on people or facility
-use pedigrees
captive rearing Ans✓✓✓ -requires lots of money and labor
-may be best option if inadequate habitat (short-term)
-education and research
-public support
conservation approach Ans✓✓✓ goal
-recover species
-reduce proximate causes of decline
increase population size
-increase recruitment
, -increase survival
increase geographic range
-translocation
-captive breeding
conservation Ans✓✓✓ protect vulnerable species
conspicuous, high density-exploitation Ans✓✓✓ ex. passenger pigeon
(again)
de-extinction? Ans✓✓✓ emerging technology that shows promise, but
may have unforeseen drawbacks
demographic stochasticity Ans✓✓✓ chance fluctuations in birth rate,
death rate, sex ratio
ecological stability Ans✓✓✓ loss of any species can have cascading
impacts throughout the ecosystem
endangered species Ans✓✓✓ likely to become extinct throughout all or
most of their geographic range
endangered species preservation act (1966) Ans✓✓✓ modified 1969,
1973 (ESA)
adaptive radiation Ans✓✓✓ few immigrants evolve to fill niches.
-ex. Darwin's finches
biotic potential Ans✓✓✓ the capacity of an individual population to
reproduce under optimal conditions
captive breeding Ans✓✓✓ -loss of individuals should not jeopardize
wild population
-replicate natural habitat
-avoid dependency (imprinting) on people or facility
-use pedigrees
captive rearing Ans✓✓✓ -requires lots of money and labor
-may be best option if inadequate habitat (short-term)
-education and research
-public support
conservation approach Ans✓✓✓ goal
-recover species
-reduce proximate causes of decline
increase population size
-increase recruitment
, -increase survival
increase geographic range
-translocation
-captive breeding
conservation Ans✓✓✓ protect vulnerable species
conspicuous, high density-exploitation Ans✓✓✓ ex. passenger pigeon
(again)
de-extinction? Ans✓✓✓ emerging technology that shows promise, but
may have unforeseen drawbacks
demographic stochasticity Ans✓✓✓ chance fluctuations in birth rate,
death rate, sex ratio
ecological stability Ans✓✓✓ loss of any species can have cascading
impacts throughout the ecosystem
endangered species Ans✓✓✓ likely to become extinct throughout all or
most of their geographic range
endangered species preservation act (1966) Ans✓✓✓ modified 1969,
1973 (ESA)
