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Biology The Biosphere > Community Ecology > Flashcards

Community Ecology Flashcards

1
Q

Biological community

A

A group of populations of different species that live close enough to interact

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2
Q

Interspecific interactions

A

Interactions between different species (competition, predation, mutualism)

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3
Q

Interspecific competition

A

-/- interacting where different species compete for resources

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4
Q

Competitive exclusion

A

When interspecific competition leads to one species being eliminated

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5
Q

Resource partitioning

A

The difference in niches that enables similar species to coexist

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6
Q

Character displacement

A

Evolution so similar species don’t inhabit the same ecological niche

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7
Q

Exploitation

A

General term for any +/- interaction

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8
Q

Animal warning coloration

A

Aposematic colouration

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9
Q

Camouflage

A

Cryptic colouration

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10
Q

A harmless species mimics a harmful one

A

Batesian mimicry

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11
Q

Two or more harmful species resemble each other

A

Müllerian mimicry

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12
Q

Two types of defenses from Predators

A

Mechanical defense (spines)
Chemical defense

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13
Q

Mutualism

A

A +/+ interaction between different species

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14
Q

Commensalism

A

A +/0 interaction between species

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15
Q

Why is commensalism rare?

A

One species rarely doesn’t affect the other, they usually do even if just a little bit.

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16
Q

Trophic structure

A

The feeding relationships between organisms

17
Q

Food web

A

Food chains linked together

18
Q

Energetic hypothesis

A

The length of the fold chain is limited by the inefficiency of the energy transfer. Only about 10% goes up.

19
Q

The decompsers are also called…

A

The detritivores

20
Q

Why are detritivores important

A

Help recycle chemicals back to the primary producers

21
Q

Production efficiency

A

The percent of energy stored in assimilated food that is not used for respiration

22
Q

Trophic efficiency

A

The percentage of production transfered from one trophic level to the next

Biology The Biosphere (22 decks)

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