What is a metapopulation?
A) A group of organisms in a given area that can reproduce with each other.
B) All the species in a given area.
C) All the species and environmental conditions in a given area.
D) A regional group of connected populations of a species.
Fecundity is one of the main components of a life table. What does fecundity express in a life table?
A) Age-specific survival
B) Age-specific number of offspring produced
C) Age-specific rate at which an individual grows
D) The carrying capacity of a population
E) The proportion of individuals in a cohort that are alive at a given age
The process by which individuals move between subpopulations or patches in a metapopulation is called _________. Dispersal to unoccupied patches leads to __________.
A) Dispersal; colonization
B) Migration; colonization
C) Movement; Exponential growth
D) Density-dependence; colonization
According to the predictions of basic metapopulation models, which of the following will lead to a persistent metapopulation with less than 100% occupancy and changes in the spatial pattern of occupancy?
A) Abundance in all subpopulations increases and decreases in synchrony.
B) No subpopulations experience local extinction
C) The per-capita rate of increase must be positive in all populations
D) The colonization rate must be larger than the extinction rate.
60 common starlings were released in Central Park in NYC in 1890 by someone trying to introduce all the birds mentioned in Shakespeare's plays to the New World. There are now millions of starlings in the US, including in southwest Washington. Prior to 1890, it is appropriate to say that SW Washington was:
A) part of the realized niche of starlings but not their fundamental niche.
B) part of the fundamental niche of starlings but not their realized niche.
C) part of the fundamental and realized niches of starlings.
D) not part of either the fundamental or realized niche of starlings.
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