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One concept of conservation biology is known as minimum viable
population. Some species’ populations are so fragmented and
small that they may have very little genetic variability left. With
minimal
that a population can adapt to an environmental threat, such as a
new disease. Florida panthers are at or below the minimum viable
population level (estimated population less than 80).
1)Do you think that it is practical to use limited
conserve a population like the Florida panther?
2)Why?
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- You are part of a restoration ecology program that is attempting to reintroduce an endangeredbird to a new habitat in Michigan, where they have been locally extinct for decades. The species went through an extreme bottleneck after they were almost wiped-out due to insecticide use in the 1960s. Maintaining what limited genetic diversity remains is an important priority, especially because disease spread from other bird speciesrepresents a major threat to the struggling populations of these birds. Captive-bred warblersdestined for this site have been genotyped at a neutral marker locus “D” with two alleles, D95and D135. The genotype counts in the captive animals are as follows:D135/D135 = 12, D135/D95 = 20, and D95/D95 = 48 2a. If all the species are used to start the new population, what is the probability that thepopulation eventually becomes fixed for allele D95 through drift?2b. Let’s assume the population stays the same size (as the number of introduced individuals) inthe new…A large conservation agency in Austria is interested in the status of the endangered newt species, Triturus austriacus, and wants you to estimate population sizes. Describe at least two methods based on genetic markers such as microsatellites which could be used to estimate effective population size (NE). Compare their relative advantages and disadvantages.Name two reasons that a large national park like Serengetior Yellowstone might not be adequate to effectivelyconserve a population of a threatened species. What solutionsexist to address these reasons?
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