describes a population whose growth is initially exponential, but slows as the population approaches the carrying capacity of the environment

a group of spatially distinct populations the are connected by occasional movements of individuals between then

benefits two interacting species by increasing both species' chances of survival or reproduction

when the population becomes larger than the spring carrying capacity

live on or in the organisms they consume

organisms that lay eggs inside other organisms

organisms that have the ability to colonize new areas rapidly and grow well in full sunshine

composed of all individuals that belong to the same species and live in a given area at a particular time

the number of individuals per unit area (or volume for aquatic organisms) at a given area at a particular time

a description of how individuals are distributed with respect to one another

the study of factors that cause populations to increase or decrease

the total number of individuals within a defined area at a given time

refers to the use of one species as a resource by another species

competition in which a predator is instrumental in reducing the abundance of a superior competitors allowing inferior competitors to persist

occurs on surfaces that are initially devoid of soil

where two species divide a resource based on differences in the species' behavior or morphology

species that have a high intrinsic growth rate because they reproduce often and produce large number of offspring

occurs in areas that have been disturbed but have not lost their soil

the ratio of males to females

graphs of distinct patterns of survival over time

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