Questions from Ecology

Q: Can the analyses by Damuth (1981) and by Peters and

Can the analyses by Damuth (1981) and by Peters and Wassenberg (1983) be combined with that of Rabinowitz (1981) to make predictions about the relationship of animal size to its relative rarity? What...

Q: Outline Müller’s (1954, 1974) colonization cycle. If you

Outline Müller’s (1954, 1974) colonization cycle. If you were studying the colonization cycle of the freshwater snail Neritina latissima, how would you follow colonization waves upstream? How would yo...

Q: Compare cohort and static life tables. What are the main assumptions

Compare cohort and static life tables. What are the main assumptions of each? In what situations or for what organisms would it be practical to use either?

Q: Of the three survivorship curves, type III has been the least

Of the three survivorship curves, type III has been the least documented by empirical data. Why is that? What makes this pattern of survivorship difficult to study?

Q: Ecologists predict that global diversity is threatened by land use change and

Ecologists predict that global diversity is threatened by land use change and by the reductions in habitat area and the fragmentation that accompany land use change. Vitousek (1994) suggested that lan...

Q: Population ecologists have assumed that populations of species with very high reproductive

Population ecologists have assumed that populations of species with very high reproductive rates, those with offspring sometimes numbering in the millions per female, must have a type III survivorship...

Q: Draw hypothetical age structures for growing, declining, and stable populations

Draw hypothetical age structures for growing, declining, and stable populations. Explain how the age structure of a population with highly episodic reproduction might be misinterpreted as indicating p...

Q: Concept 10.5 says that we can use the information in

Concept 10.5 says that we can use the information in life tables and fecundity schedules to estimate some characteristics of populations (R0, T, r). Why does Concept 10.5 use the word “estimate” rathe...

Q: What values of R0 indicate that a population is growing, stable

What values of R0 indicate that a population is growing, stable, or declining? What values of r indicate a growing, stable, or declining population?

Q: From a life table and a fecundity schedule, you can estimate

From a life table and a fecundity schedule, you can estimate the geometric rate of increase, l, the average reproductive rate, R0 , the generation time, T, and the per capita rate of increase, r. That...