Evolution
4th Edition
ISBN: 9781605356051
Author: Douglas Futuyma, Mark Kirkpatrick
Publisher: SINAUER
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Chapter 18, Problem 6PDT
Summary Introduction
To determine: Whether endemism is correlated among different taxa making it easier to save more species.
Introduction: It is important to preserve the endemic species of an area. A very effective way for doing so is by the preservation of the species along with its habitat. Due to social, political, and economic reasons, the number and distribution of areas that can be allocated as preserved areas are very limited.
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Students have asked these similar questions
Consider the 4 lines of data to be from the life tables of various species. Each one represents a different age class, and they report values for lx, dx, qx, and bx. Again, they are from different species. Which of the 4 choices would you say belongs to the species with the most intense age specific mortality?
Group of answer choices
l4 = 711, d4 = 211, q4 = 0.723, b4 = 0.98
l1 = 549, d1 = 242, q1 = 0.613, b1 = 0.08
l2 = 267, d2 = 199, q2 = 0.214, b2 = 1.28
l3 = 915, d3 = 377, q3 = 0.357, b3 = 2.90
If the phylogenetic species concept (PSC) were used to define species, rather than the biological species concept (BSC), how might that change the estimates of species diversity (numbers of species) on a worldwide basis?
True or False: Estimates of species diversity are likely to change if the PSC is used. In particular, one would expect the number of species to increase. This is because individuals from divergent allopatric populations that can potentially interbreed would belong to the same species under the BSC. These same organisms would be classified as members of different species under the PSC.
Which of the following species would have the greatest chance of going extinct?
a species with a slow reproduction rate and very little genetic variation living in a changing environment
a species with a fast reproduction rate and lots of genetic variation living in a changing environment
a species with a slow reproduction rate and very little genetic variation living in a stable environment
a species with a fast reproduction rate and lots of genetic variation living in a stable environment
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