Textbook - Chapter 11: Intraspecific Population Regulation Flashcards Preview

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Flashcards in Textbook - Chapter 11: Intraspecific Population Regulation Deck (15)
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1
Q

Carrying capacity (K)

A

Number of individual organisms the resources of a given area can support, usually through the most unfavorable period of the year.

2
Q

Contest competition

A

Competition in which a limited resource is shared only by dominant individuals; a relatively constant number of individuals survive, regardless of initial density

3
Q

Density-dependent mortality

A

Increase in mortality (death rate) with increasing population size

4
Q

Density dependent rate

A

An inverse relationship between population density and individual growth

5
Q

Density-dependent fecundity

A

Decline in fecundity (birth) rate with increasing population size

6
Q

Density independence

A

Being unaffected by population density; regulation of growth is not tied to population density

7
Q

Density dependence

A

Regulation of population growth by mechanisms controlled by the size of the population; effect increases as population size increases

8
Q

Exploitative competition

A

Competition by a group or groups of organisms that reduces a resource to a point that adversely affects other organisms

9
Q

Home range

A

Area over an animal ranges throughout the year

10
Q

Intraspecific competition

A

Competition among individuals of the same species

11
Q

Interference competition

A

Competition in which access to a resource is limited by the presence of a competitior

12
Q

Logistical model of population growth (logistic equation)

A

Mathematical expression for the population growth curve in which rate of increase decreases linearly as population size increases

13
Q

Scramble competition

A

Intraspecific competition in which limited resources are shared to the point that no individual survives

14
Q

Self-thinning

A

Progressive decline in density of plants associated with the increasing size of individuals

15
Q

Territory

A

Area defended by an animal; varies among animal species according to social behavior, social organization and resource requirements