56.3 How Populations Grow

student

A(n) ________ decides to use the mark- recapture technique to estimate their growth factors.

coast redwood

The ________ can grow to over 90 m. The oldest trees are over two thousand years old.

Weeds

________ exist in disturbed habitats with inverse density- dependent mortality factor, which decreases as a population as gaps in a forest canopy where trees have blown down, and also in increases in size.

Gymnosperms

________ breed at a later age and are unusual in trees.

K

________- selected species, coast redwoods grow faster than any other conifer, and this may be due to their unusual hexaploid genome.

Austin

________ received two dozen rabbits from England.

Individuals

________ do not live long, and these weed species are small.

Elephants

________ take a tree at least 7 years to become sexually mature, and they may have several different alleles for any given gene.

Life tables

________ show the number of living individuals in various age classes in a population.

ecologist

A(n) ________ could use the equation.

logistic model

The host's ________ makes it easy for parasites to pass from one host to another.

Ecologicalists

Who are interested in population growth rates? Answer with a single words or term.

Natural enemies

The result is rapid growth if resources are not limiting. ________ might limit population growth and the life history strategies of different species.

typical S

The ________- shaped growth occurs in an environment with unlimited resources.

Extinction

What is a real possibility because of large size population sizes? Answer with a single words or term.

wildebeest density

What was selected? Answer with a single words or term.

Mortality factors

________ have an influence on population density.

Density independent factors

________ do not vary with population density.

age specific fertility rate

What is valuable? Answer with a single words or term.

coast redwood

The ________ is the only conifer that can grow from a small to a large size.

Ecologists

________ have noted that in some cases, populations work in which researchers would determine the amount of resources, remain at low levels for an extended period of time before conditions such as food, needed by each individual and then determine the become favorable for exponential growth.