Environmental and Conservation Biology

6 years ago

Competition typically (Multiple Choice Question)

Competition typically
A) only involves two closely related species.
B) involves a predator and prey.
C) is a complex interaction of biotic and abiotic factors.
D) is random.

mat 86 1 Reply

6 years ago

Change in beak size over time in Darwin's finches is an example of

Change in beak size over time in Darwin's finches is an example of
A) environmental gradient.
B) fundamental niche.
C) competitive exclusion.
D) character displacement.

Iridium 58 1 Reply

6 years ago

One way two competing species can coexist in the same area is via

One way two competing species can coexist in the same area is via
A) having the same competition coefficient.
B) zero-growth isoclines.
C) competitive exclusion.
D) niche differentiation.

melaa 54 1 Reply

6 years ago

Coexisting species of wild cats differ in the size of their canine teeth, which corresponds to ...

Coexisting species of wild cats differ in the size of their canine teeth, which corresponds to differences in their preferred species of prey. This outcome is most likely the result of
A) resource partitioning.
B) ecological release.
C

mat 75 1 Reply

6 years ago

Competitive release is most likely to occur when a

Competitive release is most likely to occur when a
A) species colonizes an island that already has potential competitors.
B) species moves into new habitats that it never occupied on a mainland.
C) species decreases in abundance.

mat 58 1 Reply

6 years ago

The portion of potential resources and conditions that an organism actually exploits as a result of ...

The portion of potential resources and conditions that an organism actually exploits as a result of interactions with other species is its
A) home range.
B) territory.
C) realized niche.
D) fundamental niche.

mat 45 1 Reply

6 years ago

Two organisms using a portion of the same resource simultaneously is referred to as

Two organisms using a portion of the same resource simultaneously is referred to as
A) niche overlap.
B) competitive release.
C) intraspecific competition.
D) territoriality.

mat 45 1 Reply

6 years ago

Species A prefers a more dry habitat but grows in a wet habitat. Why might this be?

Species A prefers a more dry habitat but grows in a wet habitat. Why might this be?
A) Species B outcompetes A in the dry habitat.
B) Species A's fundamental niche is restricted to a wet habitat.
C) Species A requires large amount

Iridium 72 1 Reply

6 years ago

If the carrying capacity of species 2 was actually 50, what would the competitive outcome be?

If the carrying capacity of species 2 was actually 50, what would the competitive outcome be?
A) Both species coexist.
B) Species 1 wins.
C) Species 2 wins.
D) Both species go extinct.

Iridium 39 1 Reply

6 years ago

Two bird species compete in the forest for the same seeds. If α = 0.75 and β = 0.25, then ...

Two bird species compete in the forest for the same seeds. If α = 0.75 and β = 0.25, then (assuming the same carrying capacity for both)
A) the rate of seed consumption is the same for both species.
B) the environment can supply both specie

mat 163 1 Reply

6 years ago

The different chipmunk species correspond to the different tree species along an elevational ...

The different chipmunk species correspond to the different tree species along an elevational gradient. This is likely because
A) each chipmunk species depends on the specific tree species for habitat.
B) lodgepole trees and lodgepole chipmu

melaa 67 1 Reply

6 years ago

Hiking up an elevational gradient, you notice different species of birds becoming more dominant the ...

Hiking up an elevational gradient, you notice different species of birds becoming more dominant the higher you go. This could be because
A) older birds prefer lower elevations.
B) competitive abilities change along environmental gradients.

melaa 100 1 Reply

6 years ago

Typically species compete for (Multiple Choice Question)

Typically species compete for
A) food.
B) space.
C) essential nutrients.
D) multiple resources simultaneously.

mat 62 1 Reply

6 years ago

How can one grass species be dominant one year, while another is dominant a few years later and then ...

How can one grass species be dominant one year, while another is dominant a few years later and then the first becomes dominant again?
A) changes in precipitation across years
B) Lotka-Volterra models predicting cycling
C) competitive

mat 76 1 Reply

6 years ago

Which of the following is a nonresource (or nonconsumable resource) that can influence the outcome ...

Which of the following is a nonresource (or nonconsumable resource) that can influence the outcome of competition among plant species?
A) temperature
B) light
C) water
D) nitrogen

melaa 79 1 Reply

6 years ago

Which of the following is TRUE regarding competition?

Which of the following is TRUE regarding competition?
A) One species will always drive the other to extinction.
B) Competition is always focused on food.
C) The species larger in size typically outcompetes the smaller.
D) Water te

mat 31 1 Reply

6 years ago

The competitive exclusion principle states that

The competitive exclusion principle states that
A) one species will always win out.
B) two species cannot coexist unless they cooperate.
C) two close competitors cannot coexist.
D) one species will feed on another until it is exti

mat 70 1 Reply

6 years ago

The competitive exclusion principle assumes that the

The competitive exclusion principle assumes that the
A) competing species have different resource requirements.
B) competing species have the same carrying capacity (K).
C) environmental conditions remain constant.
D) superior com

melaa 78 1 Reply

6 years ago

According to the competitive exclusion principle, the populations of two species that live in the ...

According to the competitive exclusion principle, the populations of two species that live in the same place and have exactly the same ecological requirements
A) can coexist at the same carrying capacity (K) as when each population is separate.

Iridium 71 1 Reply

6 years ago

According to the figure, when these two species are combined in a culture, what will the outcome ...

According to the figure, when these two species are combined in a culture, what will the outcome be?
A) P. aurelia wins.
B) P. caudatum wins.
C) Both species coexist.
D) P. aurelia wins only if it starts at a higher abundance.

melaa 46 1 Reply

6 years ago

In Tilman's experiments with diatoms, what was the outcome when the two species competed for ...

In Tilman's experiments with diatoms, what was the outcome when the two species competed for silica?
A) Both coexisted.
B) Both survived several years but one eventually won out.
C) One outcompeted the other to extinction.
D)

melaa 66 1 Reply

6 years ago

What is the outcome of these isoclines?

What is the outcome of these isoclines?
A) Species 1 wins.
B) If species 1 begins with a higher abundance, it wins.
C) Species 2 wins.
D) Both species coexist.

melaa 36 1 Reply

6 years ago

What is the outcome of these isoclines?

What is the outcome of these isoclines?
A) Species 2 wins.
B) If species 1 begins with a higher abundance, it wins.
C) If species 2 begins with a higher abundance, it wins.
D) Species 1 wins.

Iridium 40 1 Reply

6 years ago

Paramecium aurelia has a higher rate of population growth and can tolerate a higher population ...

Paramecium aurelia has a higher rate of population growth and can tolerate a higher population density than P. caudatum. When both species were introduced into a tube containing a fixed amount of bacterial food, the populations of both species
A

Iridium 76 1 Reply

6 years ago

The diagonal line that represents dN/dt = 0 in the graphical depiction of the Lotka-Volterra ...

The diagonal line that represents dN/dt = 0 in the graphical depiction of the Lotka-Volterra competitions equations is called
A) a competition coefficient.
B) the carrying capacity.
C) a zero-growth isocline.
D) a competitive excl

Iridium 57 1 Reply

6 years ago

According to the Lotka-Volterra equations, which of the following is not an expected outcome of ...

According to the Lotka-Volterra equations, which of the following is not an expected outcome of competitive interactions between two species?
A) Species 1 drives species 2 to extinction.
B) Species 2 drives species 1 to extinction.
C)

melaa 54 1 Reply

6 years ago

What is a zero-growth isocline?

What is a zero-growth isocline?
A) when the population size of species 1 exceeds species 2
B) the set of values where α = β
C) the set of values of two population sizes where the growth rate is 0
D) the set of values where the car

melaa 52 1 Reply

6 years ago

In the following formula, what is β? dN2/dt = r2N2(1 - (N2 + βN1)/K2)A) competition coefficientB) ...

In the following formula, what is β? dN2/dt = r2N2(1 - (N2 + βN1)/K2)
A) competition coefficient
B) growth rate
C) carrying capacity
D) population size

Iridium 50 1 Reply

6 years ago

Chemicals released by plants to inhibit germination and establishment of other species is known as

Chemicals released by plants to inhibit germination and establishment of other species is known as
A) consumption.
B) allelopathy.
C) toxicopathy.
D) competitive exclusion.

mat 37 1 Reply

6 years ago

Various species of scavengers fighting over the carcass of a dead animal is referred to as

Various species of scavengers fighting over the carcass of a dead animal is referred to as
A) consumption competition.
B) preemptive competition.
C) encounter competition.
D) overgrowth competition.

melaa 64 1 Reply

6 years ago

A taller plant shading those individuals below, and reducing available light, is referred to as

A taller plant shading those individuals below, and reducing available light, is referred to as
A) preemptive competition.
B) consumption competition.
C) overgrowth competition.
D) territorial competition.

mat 43 1 Reply

6 years ago

The occupation of space by a sessile organism, such as a barnacle, that precludes the establishment ...

The occupation of space by a sessile organism, such as a barnacle, that precludes the establishment or occupation by another species is referred to as
A) preemptive competition.
B) consumption competition.
C) overgrowth competition.

Iridium 54 1 Reply

6 years ago

A shift in the morphology, behavior, or physiology of a species in response to resource competition ...

A shift in the morphology, behavior, or physiology of a species in response to resource competition is referred to as ________ displacement.

mat 50 1 Reply

6 years ago

The coexistence of competitors due to differences in the range of resources used or environmental ...

The coexistence of competitors due to differences in the range of resources used or environmental tolerances is referred to as niche ________.

mat 36 1 Reply

6 years ago

When a species expands its niche in response to the removal of a competitor, the species has ...

When a species expands its niche in response to the removal of a competitor, the species has experienced competitive ________.

Iridium 53 1 Reply

6 years ago

The portion of the fundamental niche that an organism actually exploits in the presence of ...

The portion of the fundamental niche that an organism actually exploits in the presence of competitors is called its ________ niche.

Iridium 41 1 Reply

6 years ago

Interspecific ________ occurs when the competition for space between two species influences access ...

Interspecific ________ occurs when the competition for space between two species influences access to food and nesting sites.

melaa 90 1 Reply

6 years ago

Periods of drought or extreme environmental conditions may depress the ________ of a species below ...

Periods of drought or extreme environmental conditions may depress the ________ of a species below its carrying capacity (K).

Iridium 61 1 Reply

6 years ago

Interspecific competition involves individuals of two or more species vying for the same limited ...

Interspecific competition involves individuals of two or more species vying for the same limited ________.

melaa 52 1 Reply