Review Questions

Which of the following methods will provide information to an ecologist about both the size and density of a population?

1. mark and recapture
2. mark and release
3. quadrat
4. life table

Which of the following is best at showing the life expectancy of an individual within a population?

1. quadrat
2. mark and recapture
3. survivorship curve
4. life table

Human populations have which type of survivorship curve?

1. Type I
2. Type II
3. Type III
4. Type IV

Species with limited resources usually exhibit a(n) ________ growth curve.

1. logistic
2. logical
3. experimental
4. exponential

The maximum growth rate characteristic of a species is called its ________.

1. limit
2. carrying capacity
3. biotic potential
4. exponential growth pattern

The population size of a species capable of being supported by the environment is called its ________.

1. limit
2. carrying capacity
3. biotic potential
4. logistic growth pattern

Species that have many offspring at one time are usually:

1. r-selected
2. K-selected
3. both r- and K-selected
4. not selected

A forest fire is an example of ________ regulation.

1. density-dependent
2. density-independent
3. r-selected
4. K-selected

A country with zero population growth is likely to be ________.

1. in Africa
2. in Asia
3. economically developed
4. economically underdeveloped

Which type of country has the greatest proportion of young individuals?

1. economically developed
2. economically underdeveloped
3. countries with zero population growth
4. countries in Europe

Which of the following is underlinenotend underline a way that humans have increased the carrying capacity of the environment?

1. agriculture
2. using large amounts of natural resources
3. domestication of animals
4. use of language

The first species to live on new land, such as that formed from volcanic lava, are called________.

1. climax community
2. keystone species
3. foundation species
4. pioneer species

A symbiotic relationship where both of the co-existing species benefit from the interaction is called ________.

1. commensalism
2. parasitism
3. mutualism
4. communism

When an invasive species alters the community structure it is introduced to, what can the consequence be?

1. extinction of economically important species
2. reduced predation on some native species
3. increased predation on some native species
4. all of the above