Homework Answers
Answer 1.4 : “a” is reaching a maximum that corresponds to carrying capacity.
Explanation: exponential growth occurs when resources are unlimited and thus gives a J-shaped curve.
Exponential growth is not sustainable, since it depends on infinite amounts of resources. It may take place for a while, for example if there are fewer individuals and more resources. But when the number of individuals of a particular species gets large enough, resources start to get consumed and thus leading to slow growth rate. Eventually, the growth rate will stop and reach a plateau, this leads to formation of an S-shaped curve which is called logistic curve. The population size at which it levels off, represent the maximum population size of a species supported by that particular environment, and this is called as carrying capacity. One of main characterises of S –shaped curve is that it provides us carrying capacity of an environment for a particular species.
Thus a logistic (S shaped curve) growth of a species is reaching a maximum that corresponds to carrying capacity.
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1.4.Logistic (or S-curved) growth of a species a. Is reaching a maximum that corresponds to carrying...
POPULATION MODELS: PLEASE ANSWSER ASAP: ALL 3 AND WILL RATE U ASAP. The logistic growth model...
POPULATION MODELS: PLEASE
ANSWSER ASAP: ALL 3 AND WILL RATE U ASAP.
The logistic growth model describes population growth when
resources are constrained. It
is an extension to the exponential growth model that includes an
additional term introducing
the carrying capacity of the habitat.
The differential equation for this model is:
dP/dt=kP(t)(1-P(t)/M)
Where P(t) is the population (or population density) at time t,
k > 0 is a growth constant,
and M is the carrying capacity of the habitat. This...
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a) You are studying a population of aphids with an initial
population size of 500. During a one-month period, you observe 40
births and 15 deaths in the population. Estimate the value of r for
that month, and predict the population size in three months (from
the initial population size). Remember that r is the per capita
rate of population increase. (Assume exponential population
growth).
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POPULATION MODELS: PLEASE
ANSWSER ASAP: ALL 3 AND WILL RATE U ASAP.
The logistic growth model describes population growth when
resources are constrained. It
is an extension to the exponential growth model that includes an
additional term introducing
the carrying capacity of the habitat.
The differential equation for this model is:
dP/dt=kP(t)(1-P(t)/M)
Where P(t) is the population (or population density) at time t,
k > 0 is a growth constant,
and M is the carrying capacity of the habitat. This...
Population growth problems BIDE model: No.1 N, +(B + 1) - ( D Rates: b = B/N; d = D/N: E) Net growth rate: R = b-d Exponential growth (discrete): N, NR* where R = 1+b-d Intrinsic rate of increase: r = InR Exponential growth (continuous): N:Noe -or-dN/dt = IN Logistic growth 1. Suppose a species of fish in a lake is modeled by a logistic population model with relative growth rate ofr 0.3 per year and carrying capacity of...
a) You are studying a population of aphids with an initial
population size of 500. During a one-month period, you observe 40
births and 15 deaths in the population. Estimate the value of r for
that month, and predict the population size in three months (from
the initial population size). Remember that r is the per capita
rate of population increase. (Assume exponential population
growth).
b) Imagine you are growing ciliates in a laboratory flask. The
carrying capacity is 1000...
Saved Fill in the blanks in the following sentences using the terms on the left. A term can be used only once or not at all. Ecology is the study of climate coevolve between organisms and their exponentially compete In an environment with unlimited resources and no predators, a is likely to grow competition population Density-dependent limits on population growth, such as - put a limit on the (the maximum indefinitely supported population size) carrying capacity interactions Organisms from two...
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