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BIOC61H3 Lecture Notes - Polyploid, Metapopulation, Introduced Species

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coraleagle739
5 Jun 2012
School
UTSC
Department
Biological Sciences
Course
BIOC61H3
Professor
S

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Document Summary

Population densities can be estimated from samples: estimating population densities is easiest for sedentary organisms, counting mobile organisms is much more difficult because individuals move into and out of census area. (write equation here). Birth and death rates can be estimated from population density data (write equation here). Individuals born at the same time cohort: the number of a population still alive at a given period of time in the future survivorship. 54. 2 how do ecological conditions affect life histories: an organism"s life history describes how it allocates its time and energy among the various activities that occupy its life, ecological interactions influence the evolution of life histories. All populations have the potential for exponential growth: all populations have the potential for explosive growth. As the number of individuals in a population increase, the number of new individuals added per unit of time accelerates (even if the rate of increase is expressed on a per individual basis remains constant).

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Related Questions

The number of individuals in a given area, such as an acre or a square mile, is a measurement known as:
a. population size.
b. minimum viable population.
c. population distribution.
d. population density.
2. Individuals who live in social groups are usually found in a ________________ distribution.
a. patterned
b. clumped
c. uniform
d. random
3. Under what conditions might we see exponential population growth?
a. When the population is large and approaching carrying capacity
b. When there is a sudden influx of a new food source
c. When there are enough predators around to keep the population in check
d. When a population has exceeded carrying capacity
4. What kind of things might cause a population experiencing exponential growth to transition to logistic growth?
a. The loss of that population's main predator
b. The emergence of a new food source such as ripening fruit on a tree
c. More competition for food from other species in the area
d. All of these could spur the transition.
5. Which of the following is an example of a density-independent factor for population growth?
a. Fire
b. Predators
c. Competition for nesting sites
d. Food availability
The number of individuals in a given area, such as an acre or a square mile, is a measurement known as:
a. population size.
b. minimum viable population.
c. population distribution.
d. population density.
2. Individuals who live in social groups are usually found in a ________________ distribution.
a. patterned
b. clumped
c. uniform
d. random
3. Under what conditions might we see exponential population growth?
a. When the population is large and approaching carrying capacity
b. When there is a sudden influx of a new food source
c. When there are enough predators around to keep the population in check
d. When a population has exceeded carrying capacity
4. What kind of things might cause a population experiencing exponential growth to transition to logistic growth?
a. The loss of that population's main predator
b. The emergence of a new food source such as ripening fruit on a tree
c. More competition for food from other species in the area
d. All of these could spur the transition.
5. Which of the following is an example of a density-independent factor for population growth?
a. Fire
b. Predators
c. Competition for nesting sites
d. Food availability
The number of individuals in a given area, such as an acre or a square mile, is a measurement known as:
a. population size.
b. minimum viable population.
c. population distribution.
d. population density.
2. Individuals who live in social groups are usually found in a ________________ distribution.
a. patterned
b. clumped
c. uniform
d. random
3. Under what conditions might we see exponential population growth?
a. When the population is large and approaching carrying capacity
b. When there is a sudden influx of a new food source
c. When there are enough predators around to keep the population in check
d. When a population has exceeded carrying capacity
4. What kind of things might cause a population experiencing exponential growth to transition to logistic growth?
a. The loss of that population's main predator
b. The emergence of a new food source such as ripening fruit on a tree
c. More competition for food from other species in the area
d. All of these could spur the transition.
5. Which of the following is an example of a density-independent factor for population growth?
a. Fire
b. Predators
c. Competition for nesting sites
d. Food availability
The number of individuals in a given area, such as an acre or a square mile, is a measurement known as:
a. population size.
b. minimum viable population.
c. population distribution.
d. population density.
2. Individuals who live in social groups are usually found in a ________________ distribution.
a. patterned
b. clumped
c. uniform
d. random
3. Under what conditions might we see exponential population growth?
a. When the population is large and approaching carrying capacity
b. When there is a sudden influx of a new food source
c. When there are enough predators around to keep the population in check
d. When a population has exceeded carrying capacity
4. What kind of things might cause a population experiencing exponential growth to transition to logistic growth?
a. The loss of that population's main predator
b. The emergence of a new food source such as ripening fruit on a tree
c. More competition for food from other species in the area
d. All of these could spur the transition.
5. Which of the following is an example of a density-independent factor for population growth?
a. Fire
b. Predators
c. Competition for nesting sites
d. Food availability
The number of individuals in a given area, such as an acre or a square mile, is a measurement known as:
a. population size.
b. minimum viable population.
c. population distribution.
d. population density.
2. Individuals who live in social groups are usually found in a ________________ distribution.
a. patterned
b. clumped
c. uniform
d. random
3. Under what conditions might we see exponential population growth?
a. When the population is large and approaching carrying capacity
b. When there is a sudden influx of a new food source
c. When there are enough predators around to keep the population in check
d. When a population has exceeded carrying capacity
4. What kind of things might cause a population experiencing exponential growth to transition to logistic growth?
a. The loss of that population's main predator
b. The emergence of a new food source such as ripening fruit on a tree
c. More competition for food from other species in the area
d. All of these could spur the transition.
5. Which of the following is an example of a density-independent factor for population growth?
a. Fire
b. Predators
c. Competition for nesting sites
d. Food availability

In 5 years, there are an estimate 168 individuals on Island A, and 99 individuals on island B. Which island has a higher growth rate? What will the population size of each island be in another 5 years? Starting population for Island A is 150 and starting population for island B is 91

Which of the following best describes the principle of evolution by natural selection?

A. Individuals within a population are genetically identical and natural selection occurs randomly

B. Individuals within a population exhibit genetic variation and those that are best adapted to their environment survive

C. Individuals within a population exhibit genetic variation and those that are least adapted to their environment survive

D. Individuals within a population undergo genetic mutation and natural selection occurs randomly

E. Individuals within a population exhibit genetic variation and natural selection occurs randomly