Unit 1: Intro to Ecosystems Flashcards

1
Q

Competition

A

When individuals struggle to get a limited resource that is shared with others.

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2
Q

Competitve exclusion principle

A

Two species competing for the same limited resource can’t coexist. One species will do better than the other when they have the same ideal conditions.

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3
Q

Resource partioning

A

2 species dividing dividing resources to avoid competion over a shared resource.

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4
Q

Symbiotic relationships

A

Two species closely associated with eachother.

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5
Q

Predator

A

An animal that consumes another, its prey.

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6
Q

Prey

A

The animal a predator kills and consumes.

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7
Q

Temporal Resource Partioning

A

2 species in the same area using the same resources at different times.

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8
Q

Spatial Resource Partioning

A

2 species reduce competition by using different habitats.

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9
Q

Morphological Resource Partioning

A

Natural evolution reduces competition.

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10
Q

Predation effect

A

Positive/Negative

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11
Q

Competiton effect

A

Negative

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12
Q

Parasitism

A

An organism lives on or in another.

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13
Q

Parasitism effect

A

Negative/Positive

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14
Q

Herbivory

A

An animal consumes a producer.

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15
Q

Herbivory effect

A

Negative/Positive

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16
Q

Mutualism

A

2 species interact and benefit eachother.

17
Q

Mutualism effect

A

Positive

18
Q

Commensalism

A

A relationship where oen species benifets and one is not affected.

19
Q

Commensalism effect

A

Postive and no effect

20
Q

Two factors that decide if a species can do good in an area

A

Their range of tolerance and their relationships with other species.

21
Q

Parasitoids

A

A form of predator that lay eggs in other organsims that will hatch and eat the host from the inside out.

22
Q

What are parasites causing disease in their host called?

A

Pathogens

23
Q

Organisms won’t engage in mutualistic relationships if what?

A

Their benefit is too small.

24
Q

Keystone Species

A

A species that is not abundant but has a large effect on their ecological community.

25
Q

Ecosystem Engineer

A

A keystone species that makes or keeps a habitat for other species.