Questions from Ecology

Q: In figure 22.7, the number of mammal species on

In figure 22.7, the number of mammal species on the isolated mountain ranges varies greatly for a given distance from large montane areas, for instance, at a distance of 150 km. What is th...

Q: What are two ways in which the cutting of tropical forests and

What are two ways in which the cutting of tropical forests and replacing them with lower productivity cattle pastures affect the global carbon balance?

Q: How will global warming affect the proportion of the earth’s water that

How will global warming affect the proportion of the earth’s water that resides in the oceans?

Q: Why are virtually all estimates of immigration and extinction rates on islands

Why are virtually all estimates of immigration and extinction rates on islands underestimates of the true rates?

Q: What result would have been grounds for Diamond to reject the equilibrium

What result would have been grounds for Diamond to reject the equilibrium model of island biogeography based on his studies of the California Channel Islands (see fig. 22.10)? Figure&Acir...

Q: In the course of studies by Simberloff and Wilson (1969)

In the course of studies by Simberloff and Wilson (1969) and Simberloff (1976), several mangrove islands were defaunated and several were partially destroyed to reduce island area. Do such experiments...

Q: Compare the water budgets of the tenebrionid beetle, Onymacris, and

Compare the water budgets of the tenebrionid beetle, Onymacris, and the kangaroo rat, Dipodomys, shown in figures 6.9 and 6.10. Which of these two species obtains most of its water from me...

Q: Why is genetic drift more probable in small populations than in large

Why is genetic drift more probable in small populations than in large populations?

Q: How does highly selective mating by females (for example, see

How does highly selective mating by females (for example, see fig. 8.10) affect the potential for Hardy-Weinberg equilibrium? Figure 8.10:

Q: If growing lines of Escherichia coli at 20 8 C for 2

If growing lines of Escherichia coli at 20 8 C for 2,000 generations increased their fitness at 20 8 C without reducing their fitness at 40 8 C, how would the distribution of points in figureÂ&n...