# suppose that none of the 44 dolphins encountered in the second sampling had been photographed before.

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Suppose that none of the 44 dolphins encountered

in the second sampling had been photographed before. Would you be able to

solve the equation for N? What might you conclude about population size in

this case? Expert Solution

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## bio 101 ch 53 Flashcards

Start studying bio 101 ch 53. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

## bio 101 ch 53

43 studiers in the last day

Suppose that none of the 44 dolphins encountered in the second sampling had been photographed before.

Would you be able to solve the equation for N? What might you conclude about population size in this case?

A) The equation can be solved, and you would conclude that the population size is close to 1,100.

B) The equation cannot be solved, so you would not be able to reach any conclusions about population size.

C) The equation cannot be solved, but you would conclude that the population size is very large.

D) The equation can be solved, and you would conclude that the population size is very small.

Click card to see definition 👆

C) The equation cannot be solved, but you would conclude that the population size is very large.

Click again to see term 👆

In the figure above, which of the following survivorship curves implies that an animal may lay many eggs, of which a regular number die each year on a logarithmic scale?

curve A curve B curve C

Click card to see definition 👆

curve B

Click again to see term 👆

1/19 Created by darren_estes

### Textbook solutions for this set

Lehninger Principles of Biochemistry

7th Edition

David L Nelson, Michael M. Cox

634 explanations Campbell Biology 11th Edition

Lisa A. Urry, Michael L. Cain, Peter V Minorsky, Steven A. Wasserman

1,678 explanations

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### Terms in this set (19)

Suppose that none of the 44 dolphins encountered in the second sampling had been photographed before.

Would you be able to solve the equation for N? What might you conclude about population size in this case?

A) The equation can be solved, and you would conclude that the population size is close to 1,100.

B) The equation cannot be solved, so you would not be able to reach any conclusions about population size.

C) The equation cannot be solved, but you would conclude that the population size is very large.

D) The equation can be solved, and you would conclude that the population size is very small.

C) The equation cannot be solved, but you would conclude that the population size is very large.

In the figure above, which of the following survivorship curves implies that an animal may lay many eggs, of which a regular number die each year on a logarithmic scale?

curve A curve B curve C curve B

In the figure above, which of the following survivorship curves most applies to humans living in developed countries?

curve A curve B curve C curve A or curve B curve A

Using the table above, how would you describe the population dynamics of L. vivipara?

A) The population is decreasing.

B) The population is stable.

C) The population is increasing.

D) The figure does not provide this information.

C) The population is increasing.

Looking at the figure above, what is contributing significantly to stabilizing population size over time?

I) no migration II) low migration III) high migration A) only I B) only II C) only III D) only II and III C) only III

Which of the following examples would most accurately measure the density of the population being studied?

A) counting the number of moss plants in one-square-meter quadrants

B) counting the number of coyote droppings per hectare

C) counting the number of zebras from airplane census observations.

D) counting the number of times a one-kilometer transect is intersected by tracks of red squirrels after a snowfall

A) counting the number of moss plants in one-square-meter quadrants

Which of the following is the best natural example of uniform distribution?

A) bees collecting pollen in a wildflower meadow

B) snails in an intertidal zone at low tide

C) territorial songbirds in a mature forest during mating season

D) mushrooms growing on the floor of an old growth forest

C) territorial songbirds in a mature forest during mating season

Starting from a single individual, what is the size of a population of bacteria at the end of a two-hour time period if they reproduce by binary fission every twenty minutes? (Assume unlimited resources and no mortality.)

A) 128 B) 16 C) 64 D) 32 C) 64

The number of individuals that a particular habitat can support with no degradation of that habitat is called _____.

A) community

B) carrying capacity

C) niche D) biotic potential E) survivorship

B) carrying capacity

Imagine that you are managing a large game ranch. You know from historical accounts that a species of deer used to live there, but they have been extirpated. After doing some research to determine what might be an appropriately sized founding population, you reintroduce them. You then watch the population increase for several generations, and graph the number of individuals (vertical axis) against the number of generations (horizontal axis). With no natural predators impacting the population, the graph will likely appear as _____.

A) an "S" that ends with a vertical line

B) an upside-down "U"

C) a diagonal line, getting higher with each generation

## Ch. 53 Population Ecology Flashcards

Study Ch. 53 Population Ecology flashcards. Play games, take quizzes, print and more with Easy Notecards.

## Ch. 53 Population Ecology Flashcards

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Which of the following is an example of a population?

A.a spider and the fly it is about to eat

B.the earthworms that live in a grassland plus the earthworms that live in a forest

C.all of the redwood trees that live in a forest

D.all the plants that live near each other in a forest

E.all the coyotes on Earth

C

To determine the density of a rabbit population, you would need to know the number of rabbits and _____.

A.their pattern of dispersion

B.the size of the area in which they live

C.the birth rate

D.the factors that limit population growth for that rabbit population

E.the growth rate of the population

B

In wild populations, individuals most often show a _____ pattern of dispersion.

A.random B.equilibrium C.density-dependent D.clumped E.uniform D

x/n=s/N or, solving for population size, N=sn/x

Suppose that none of the 44 dolphins encountered in the second sampling had been photographed before.

Would you be able to solve the equation for N? What might you conclude about population size in this case?

A.The equation can be solved, and you would conclude that the population size is very small.

B.The equation cannot be solved, but you would conclude that the population size is very large.

C.The equation can be solved, and you would conclude that the population size is close to 1,100.

D.The equation cannot be solved, so you would not be able to reach any conclusions about population size.

B

In the figure above, which of the following survivorship curves implies that an animal may lay many eggs, of which a regular number die each year on a logarithmic scale?

A.curve A B.curve B C.curve C B

In the figure above, which of the following survivorship curves most applies to humans living in developed countries?

A.curve A B.curve B C.curve C

D.curve A or curve B

A

Using the table above, how would you describe the population dynamics of L. vivipara?

A.The population is stable.

B.The population is decreasing.

C.The population is increasing.

D.The figure does not provide this information.

C

Using the table above, determine which age class year would hurt the population growth most if it were wiped out by disease.

A.age class year 1 B.age class year 2 C.age class year 3 D.age class year 4 A

Suppose researchers marked 800 turtles and later were able to trap a total of 300 individuals in that population, of which 150 were marked. What is the estimate for total population size?

A.1600 B.200 C.1050 D.2100 A

Looking at the figure above, what is contributing significantly to stabilizing population size over time?

I) no migration II) low migration III) high migration A.only I B.only II C.only III D.only II and III C

Which of the following assumptions have to be made regarding the mark-recapture estimate of population size?

I) Marked and unmarked individuals have the same probability of being trapped.

II) The marked individuals have thoroughly mixed with the population after being marked.

III) No individuals have entered or left the population by immigration or emigration, and no individuals have been added by birth or eliminated by death during the course of the estimate.

A.I only B.II only C.I and II only D.I, II, and III D

Which of the following is the most important assumption for the mark-recapture method to estimate the size of wildlife populations?

A.Marked individuals have the same probability of being recaptured as unmarked individuals during the recapture phase.

B.There is a 50:50 ratio of males to females in the population before and after trapping and recapture.

C.More individuals emigrate from, as opposed to immigrate into, a population.

D.Over 50% of the marked individuals need to be trapped during the recapture phase.

A

Refer to the figure above. Which curve best describes survivorship in marine molluscs?

A.A B.B C.C D.E D

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