AP BIO Chapter 52 Vocabulary
Terms
undefined, object
copy deck
- semelparity
- A life history in which adults have but a single reproductive opportunity to produce large numbers of offspring, such as the life history of the Pacific salmon. Also known as "big-bang reproduction."
- endoparasites
- Parasites that live within a host.
- carrying capacity
-
The maximum population size that can be supported by the available resources, symbolized as K.
- big-bang reproduction
-
A life history in which adults have but a single reproductive opportunity to produce large numbers of offspring, such as the life history of the Pacific salmon. Also known as semelparity.
- bottom-up model
-
A model of community organization in which mineral nutrients control community organization because nutrients control plant numbers, which in turn control herbivore numbers, which in turn control predator numbers.
- zero population growth
-
A period of stability in population size when the per capita birth rates and death rates are equal.
- interspecific competition
- Competition for resources between plants, between animals, or between decomposers when resources are in short supply.
- Top-Down Model
- A model of community organization in which predation controls community organization because predators control herbivores, which in turn control plants, which in turn control nutrient levels; also called the trophic cascade model.
- individualistic hypothesis
- The concept, put forth by H.A. Gleason, that a plant community is a chance assemblage of species found in the same area simply because they happen to have similar biotic requirements.
- cryptic coloration
- Camouflage, making potential prey difficult to spot against its background.
- ectoparasites
- Parasites that feed on the external surface of a host.
- Müllerian mimicry
-
A mutual mimicry by two unpalatable species.
-
energetic hypothesis
- length of a food chain is limited by the inefficiency of energy transfer along the chain.
- interactive hypothesis
- The concept, put forth by F.E. Clements, that a community is an assemblage of closely linked species, locked into association by mandatory biotic interactions that cause the community to function as an integrated unit, a sort of superorganism.
- clumped
- Describing a dispersion pattern in which individuals are aggregate in patches.
- competitive exclusion principle
- The concept that when populations of two similar species compete for the same limited resources, one population will use the resources more efficiently and have a reproductive advantage that will eventually lead to the elimination of the other population.
- Batesian mimicry
- A type of mimicry in which a harmless species looks like a species that is poisonous or otherwise harmful to predators.