Ecological Communities Flashcards

1
Q

What is an ecological community?

A

A group of interacting species living in the same place

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2
Q

What is the difference between species richness and species diversity?

A

Species richness is the total number of species occupying a habitat while diversity is the species richness and abundance of species.

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3
Q

What are the measures of diversity in a community?

A

Species richness
Diversity
Relative abundance

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4
Q

The proportion of the community that each species occupies is known as:

A

Relative abundance

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5
Q

If 90% of the individuals belong to 1 species:

High diversity
Low diversity

A

Low diversity

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6
Q

If each species contributes 1% of the individuals:

High diversity
Low diversity

A

High diversity

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7
Q

Types of interactions between species:

A

Competition
Symbiosis
Consumer-resource interactions

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8
Q

When two or more species vie for the same limited resource:

A

Competition

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9
Q

When species live in or on another:

A

Symbiosis

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10
Q

Types of symbiosis:

A

Parasitism
Mutualism
Commensalism

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11
Q

Types of consumer-resource interactions:

A

Herbivory

Predation

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12
Q

Competition within the same species is:

A

Intraspecific

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13
Q

Competition between species is:

A

Interspecific

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14
Q

What is mutualism?

A

When both partners have improved fitness (pollination)

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15
Q

What is commensalism?

A

When one species benefits and the other is not affected (Spanish moss and oak trees)

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16
Q

What is parasitism?

A

When on species benefits at the expense of the other (mistletoe)

17
Q

Parasites are found in all kingdoms?

True
False

18
Q

Animal that consumes plants:

19
Q

Animal that eats other animals:

20
Q

What is a keystone species?

A

A species that has a pivotal role in the community
Makes up a small portion of community by weight
Influence on community diversity is large

21
Q

What is succession?

A

Gradual change over time in community’s species composition

22
Q

Types of succession:

A

Primary

Secondary

23
Q

Type of succession where a community begins in an area without soil

24
Q

Type of succession where a disturbance has destroyed an existing community but left soil intact

25
Secondary succession: A)Happens alongside primary succession B)Is faster than primary succession C)Happens at the same rate as primary succession D)Is slower than primary succession
B)Is faster than primary succession
26
Which of the following is an invasive species in Florida? A)Python B)Palm Tree C)Oak Trees D)Spanish moss
A)Python