Exam 53: Population Ecology

The following questions refer to the figure below,which depicts the age structure of three populations. -Assuming these age-structure diagrams describe human populations,which population(s)is (are)likely to experience zero population growth (ZPG)?

Why is territoriality an adaptive behaviour for songbirds maintaining populations at or near their carrying capacity?

Based on current growth rates,Earth's human population in 2050 will reach about

Which of the following is the equation for zero population growth (ZPG)?

Which of the following is most likely to contribute to density-dependent regulation of populations?

Starting from a single individual,what is the size of a population of bacteria that reproduce by binary fission every 20 minutes at the end of a 2-hour time period? (Assume unlimited resources and no mortality.)

Which of the following is characteristic of K-selected populations?

Elephants and sea turtles are both long-living vertebrates.What type of survivorship curve would you expect to see for these two species,respectively?

Which of the following is the most important assumption for the capture-recapture method to estimate the size of wildlife populations?

The Allee effect is used to describe a population that

In 2008,the population of New Zealand was approximately 4 275 000 people.If the birth rate was 14 births for every 1000 people,approximately how many births occurred in New Zealand in 2008?

Which of the following life history traits is incorrectly matched?

Which of the following is not an example of density-dependent regulation?

Which of the following could be a density-independent factor limiting human population growth?

Uniform spacing patterns in birds,such as albatrosses,are often associated with

Use the survivorship curves shown below to answer the following questions. -Which curve best describes survivorship in humans who live in undeveloped nations?

Please read the paragraph below and review the figure to answer the following question. Researchers in the Netherlands studied the effects of parental care given in European kestrels over five years.The researchers transferred chicks among nests to produce reduced broods (three or four chicks),normal broods (five or six chicks),and enlarged broods (seven or eight chicks).They then measured the percentage of male and female parent birds that survived the following winter.(Both males and females provide care for chicks.) Brood size manipulations in the kestrel: Effects on offspring and parent survival. -Which of the following is a conclusion that can be drawn from this graph?

A population of ground squirrels has an annual per capita birth rate of 0.06 and an annual per capita death rate of 0.02.Calculate an estimate of the number of individuals added to (or lost from)a population of 1000 individuals in one year.

Natural selection involves energetic trade-offs between

An ecological footprint is a construct that is useful