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    a severe drought is an example of a density-_____ factor that can influence population size. the availability of nest sites is an example of a density-_____ factor.

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    CH 46 Flashcards

    Study with Quizlet and memorize flashcards terms like c, d, c and more.

    CH 46

    c

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    A severe drought is an example of a density-_____ factor that can influence population size. The availability of nest sites is an example of a density-_____ factor.

    a. dependent; dependent

    b. dependent; independent

    c. independent; dependent

    d. independent; independent

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    d

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    A _____ consists of all the individuals of a given species that live and reproduce in a particular place.

    a. family b. species c. range d. population

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    Terms in this set (12)

    c

    A severe drought is an example of a density-_____ factor that can influence population size. The availability of nest sites is an example of a density-_____ factor.

    a. dependent; dependent

    b. dependent; independent

    c. independent; dependent

    d. independent; independent

    d

    A _____ consists of all the individuals of a given species that live and reproduce in a particular place.

    a. family b. species c. range d. population c

    According to MacArthur and Wilson's theory of island biogeography, both the land area (size) of an island and the _____ contribute to species diversity.

    a. rock composition of the island

    b. proximity of the island to the equator

    c. distance of the island from neighboring land masses

    d. climate of the island

    e. depth of the water surrounding the island

    c

    A large population made up of smaller populations linked by migration is a:

    a. habitat patch. b. colonization. c. metapopulation.

    d. island founder event.

    c

    _____ is the proportion of individuals of an initial cohort that survives to each successive age or stage of the life cycle.

    a. Mortality b. Age structure c. Survivorship d. Demography c

    The maximum number of individuals of a given population the environment can support is the environment's _____ for that population.

    a. effect on the exponential growth rate

    b. effect on the intrinsic growth rate

    c. carrying capacity

    d. population size d

    When a population is small relative to its carrying capacity, its growth will be:

    a. both geometric and exponential.

    b. geometric.

    c. both geometric and logistic.

    d. exponential. e. logistic. d

    The theory of island biogeography describes the number of species on an island as being determined by an equilibrium between the processes of immigration and extinction. Consider a small, far-offshore island and a large, near-shore island. Which island is expected to have a HIGHER equilibrium number of species?

    a. far-offshore, small island

    b. It is not possible to make a definite prediction based on the information given.

    c. The equilibrium number of species is expected to be the same.

    d. near-shore, large island

    c

    In the experiments with moss patches described in your text, what were the two factors that affected insect extinction rates within patches?

    a. patch connectivity (usable habitat corridors between patches) and mobility of predators

    b. distance from the source population and mobility of predators.

    c. patch size and patch connectivity (usable habitat corridors between patches)

    d. patch size and distance from the source population

    a

    An r-strategist will typically:

    a. produce many small offspring.

    b. produce many small offspring and provide abundant parental care.

    c. produce many offspring.

    d. provide abundant parental care.

    e. produce small offspring.

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    A group of field biologists goes out to mark beetles living in an area around a

    A group of field biologists goes out to mark beetles living in an area around a from BI 204 at Oregon State University, Corvallis

    A group of field biologists goes out to mark beetles

    Oregon State University, Corvallis

    BI 204 Homework Help Nick626 4

    This preview shows page 2 - 4 out of 4 pages.

    16.A group of field biologists goes out to mark beetles living in an area arounda local pond in order to estimate population size. They capture 500 beetleson the first day. They return the following day and catch a total of 400individuals, 200 of which are marked. What is the estimated population sizefor the beetles?25010,000100050017.A researcher is trying to calculate the population density of bobcats inColorado. What information must she have in order to calculate this value?18.A population of 20 butterflies colonizes a new area with no predators and anumber of flower species large enough to support a butterfly population of200 individuals. In the first 2 years in the new area, the growth curve for thisbutterfly population will show:23.When a male lion competes with another male for mating rights in a pride,this is an example of _____ competition. When a lion pride competes withhyenas for food sources in a habitat, this is an example of _____competition. Both can affect the size of the lion population.contraspecific; intraspecific

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