Biology 2483A Lecture 8: Lecture 8

18 views1 pages

orchidotter238

23 Dec 2011

School

Department

Course

Professor

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

Populations are dynamic and moving which makes it difficult. This changes the abundance and distribution from day to day. If you have an asexual population not as useful criteria competition between 2 individuals. Not sure how far the extent that individuals are connected across the landscape. Use knowledge about dispersal to find a total population. Populations are dynamic an example: looking at insect abundance of goldenrod plants. Interesting is that the number of sights were within a close region; change in abundance within close climate. Some insect species changed a lot from year to year and others stayed the same. Only a 5km difference essentially the same climate. Three sights in some years we have peaks that cluster between the 2 sights. Other dynamics we just don t know what they are. Dispersal; example of plants drop the seed next to them so they don t disperse at all, others cover a large difference.

Related Questions

Based on a mark-recapture study you estimated that 86 sea otters lived in a population in the Aleutian Islands. You went back 5 years later and repeated the study. Based on the following data, how did the population change?

Number of otters captured during 1^st sampling = 30

Number of otters captured during 2^nd sampling = 18

Number of marked otters recaptured during 2^nd sampling = 10

The abundance of sea otters decreased

The abundance of sea otters increased

Not enough information to tell

The abundance of sea otters stayed the same

What are these terms and briefly describe the significance of each in understanding the distribution and abundance of species.
- source population
- additive mortality
- ultimate factor

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.

Individuals who live in social groups are usually found in a ________________ distribution.

	a. patterned
	b. clumped
	c. uniform
	d. random

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

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.

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.

Individuals who live in social groups are usually found in a ________________ distribution.

	a. patterned
	b. clumped
	c. uniform
	d. random

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

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.

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.

Individuals who live in social groups are usually found in a ________________ distribution.

	a. patterned
	b. clumped
	c. uniform
	d. random

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

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.

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.

Individuals who live in social groups are usually found in a ________________ distribution.

	a. patterned
	b. clumped
	c. uniform
	d. random

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

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.

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.

Individuals who live in social groups are usually found in a ________________ distribution.

	a. patterned
	b. clumped
	c. uniform
	d. random

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

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.

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

blushrhinoceros249

Biology 2483A Lecture 8: Lecture 8

Document Summary

Get access

Related Documents

Biology 2483A Lecture Notes - Orthohantavirus, Chameleon, Aspen Grove

Biology 2483A Chapter Notes - Chapter 9: Larrea Tridentata, Aspen Grove, Apomixis

Biology 2483A Lecture Notes - Lecture 8: Semibalanus Balanoides, Desert Pupfish, Monarch Butterfly

Related Questions