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Ecology Test 2
Vocab
21
Biology
Undergraduate 3
06/20/2011

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Term
Demography
Definition
the study of age specific births, deaths, and survivorship
Term
Life Histories
Definition
the lifetime patterns of survival, growth, and reproduction of a species
Term
Growth
Definition
an irreversible increase in mass
Term
Indeterminate Growth
Definition
growth throughout life
Term
Determinate Growth
Definition
growth to a certain size
Term
Iteroparity
Definition
the condition of repeated reproductive events in an organism's lifetime
Term
Semelparity
Definition
the condition of one reproductive event at a later point after early energy is put into maximizing reproductive growth
Term
Reproductive Effort
Definition
the mechanism by which an organism budgets its energy into reproduction and the timing of that reproduction
Term
Interspecific
Definition
interaction between individuals of different species
Term
Intraspecific
Definition
interaction between individuals of the same species
Term
Commensalism
Definition
an interaction where one benefits and the other is not impacted
Term
Mutualism
Definition
interaction between individuals of different species that benefits both
Term
Obligatory Mutualism
Definition
interaction between two species where both benefit, and one or both can't live without the other
Term
Facultative Mutualism
Definition
interaction between two individuals where both benefit, and partners can survive without but do best together
Term
Coevolution
Definition
the joint evolution of two or more non interbreeding species that share a close ecological relationship and are exposed to similar environmental pressures
Term
Parasitoid
Definition
predator or parasite that attacks its host indirectly by laying its eggs inside for the young to consume the prey
Term
Cannibalism
Definition
predator and prey are the same species
Term
Infection
Definition
higher than average number of parasites
Term
Disease
Definition
any state in the condition of an organism that deviates from normal
Term
Definitive Host
Definition
host in which the parasite reaches sexual maturity
Term
Intermediate Host
Definition
host that houses some of the development phases of a parasite
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