ENVS 010 Lecture Notes - Lecture 5: Minimum Viable Population

9 views2 pages

tealsheep170

29 Apr 2019

School

SJSU

Department

Environmental Studies, Department of

Course

ENVS 010

Professor

Laizzer

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

Document Summary

Niche: sum total of a species" use of biotic & abiotic resources in an environment. Area that could potentially be used by a species. Usually determined by both abiotic and competition factors. Area that is actually used by a species. Competition exclusive principle: when the niche of species overlap. Resource partitioning: when the niche of species overlap so they have to find a way to kind of. Density: the number of individuals per unit of area. If there are 100 bears in an area that is 25 square kilometers. They can share the area and resources, or one species will overtake the other distribute/share the resources of the niche. Competition for likelihood of spreading a disease increases. Growth rate = (b + i) - (d + e) Population a given area can sustain (when all of the resources are being used all the time. If density increases, disease transition increases, pop. goes down.

Related Questions

16. Which of the following statements best describes a commensal symbiotic relationship between two species? Both species benefit. One species benefits and the other is unaffected. One species benefits and the other is harmed. Both species are harmed.

17. The fundamental niche of an organism is determined by ______ factors, while the realized niche is determined by ______ factors. biotic; abiotic abiotic; biotic biotic; biotic abiotic; abiotic

18. Competition between species can be reduced as a result of character displacement. This is because one of the species becomes extinct. the species will no longer compete for the same resource. the niche of at least one of the species is changed. Both B and C are correct.

19. When they winter in Central and South America, robins form flocks and feed on fruit. During the summer, they migrate to North America, where they feed on caterpillars, earthworms and other animals. These birds are best described as herbivores. omnivores. detrivores. carnivores.

20. For your final examination before you receive your degree from Penn State, you have been given a slide that contains an unknown tissue from a multi-cellular eukaryote. You have been asked to identify if that tissue is from an animal, a fungus, or a plant. As you stare through the microscope at the slide, you remember that you learned the major differences between these cells in Biology 11. You look for the presence of ______, found only in plant cells, and the absence of ______, never seen in animal cells. But, the cells that you are looking at have a cell wall and do not have chloroplasts. You confidently circle ______ on the answer sheet. chloroplasts; mitochondria; animal mitochondria; chloroplasts; animal chloroplasts; cell walls; fungus mitochondria; cell walls; fungus

if the sheep population in Tasmaania went from 30,000 in 1820 to1,900,000 in 1850, what was this population's annual r value duringthis period?

a 0.174905

b. 0.151795

c. 0.138280

d. 0.144178

The population interaction that occurs when two popuationsrequire the same resource that is in insufficient supply to providethe needs of both populations is

a. intraspecific competition

b. interspecific population

c. synbiosis

d. exploitation

A gathering of males to perform courship rituals within atraditional arena is called ?

a. a gaggle

b. a lek

c. a territory

d. a & b

The range of physical conditions within which individuals of aspecies can persist in the presence of predators and consumers istermed ?

a. realized niche

b. habitat

c. fundamental niche

d. lek

Population size can be regulated by

a. density independent factors

b. density dependent factors

c. dispersal

d. a & c

The phenomenon where individuals prefer mating with indiviudalswith similar genotypes is called ?

a. negative assortative making

b. positive assortative mating

c. assortative mating

d. genetic drift

A consumer which generally does not kill its resource is a?

a. carnivore

b. parasite

c. predator

d. b & d

burgundykangaroo118

QUESTION 1

These include simultaneous consideration of tolerance ranges for all conditions, resource requirements (of all biotic and abiotic resources), and habitat preferences.

Fundamental ecological niches

Hutchinsonian ecological niches

. Realized ecological niches

Competition coefficients

Competitive exclusion

Coexistence

Isoclines

Stable equilibria

Unstable equilibria

QUESTION 2

Interspecific competition has this outcome when the effects of intraspecific competition outweigh the effects of interspecific competition.

Fundamental ecological niches

Hutchinsonian ecological niches

Realized ecological niches

Competition coefficients

Competitive exclusion

Coexistence

Isoclines

Stable equilibria

Unstable equilibria

QUESTION 3

The range of places that species could occupy based on suitability; a hypothetical location and ecological/trophic role in the absence of ecological interactions such as competition.

Fundamental ecological niches

Hutchinsonian ecological niches

Realized ecological niches

Competition coefficients

Competitive exclusion

Coexistence

Isoclines

Stable equilibria

Unstable equilibria

QUESTION 4

Graphs of the Lotka-Volterra interspecific competition model illustrate coexistence of two species with one of these features.

Fundamental ecological niches

Hutchinsonian ecological niches

. Realized ecological niches

Competition coefficients

Competitive exclusion

Coexistence

. Isoclines

. Stable equilibria

Unstable equilibria

QUESTION 5

When a particular species always outcompetes a second species in the Lotka-Volterra model of interspecific competition, these features will never intersect.

Fundamental ecological niches

Hutchinsonian ecological niche

Realized ecological niches

Competition coefficients

Competitive exclusion

Coexistence

Isoclines

Stable equilibria

Unstable equilibria

QUESTION 6

When prey/foods increase in abundance, the predator population increases through reproduction and/or immigration.

Amensilism

Commensilism

Functional response

Mutualism

Numerical response

Parasite

Parasitoid

True predator

This is not an answer- don't choose it!

QUESTION 7

Endomycorrhizae, ectomycorrhizae, gut âmicrofloraâ and lichens are examples of this type of ecological interaction.

Amensilism

Commensilism

Functional response

Mutualism

Numerical response

Parasite

Parasitoid

True predator

QUESTION 8

Prey switching, prey mechanisms to avoid predation (via increased group size), and formation of search images generate variations of this phenomenon.

Amensilism

Commensilism

Functional response

Mutualism

Numerical response

Parasite

Parasitoid

True predator

QUESTION 9

Generally do not kill their prey, and consume only one (or perhaps a few) individual prey during a particular developmental phase or lifetime.

Amensilism

Commensilism

. Functional response

Mutualism

Numerical response

Parasite

Parasitoid

True predator

QUESTION 10

Extremely asymmetric competition and âaccidentsâ can result in this ecological interaction.

Amensilism

. Commensilism

Functional response

Mutualism

Numerical response

Parasite

Parasitoid

True predator

ENVS 010 Lecture Notes - Lecture 5: Minimum Viable Population

Document Summary

Get access

Related Documents

ENVS 010 Lecture Notes - Lecture 1: Population Ecology, Logistic Function, Exponential Growth

BIOB50H3 Lecture Notes - Lecture 7: Limonium, Photosynthesis, Salicornia

EVS 1101 Lecture Notes - Lecture 2: Zebra Mussel, Intraspecific Competition, Interspecific Competition

Related Questions