Chapter 19: Species Diversity in Communities Flashcards

1
Q

Species supply filter from regional species pool toward local community

A

dispersal and immigration

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2
Q

Abiotic filter from regional species pool toward local community

A

environmental conditions

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3
Q

Biotic filter from regional species pool toward local community

A

species interactions

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4
Q

Significant contributor to invasive species dispersal

A

Ballast water

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5
Q

Factors affecting species dispersal like temperature and precipitation

A

Environmental conditions

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6
Q

Factors affecting species dispersal like competition and mutualism

A

Species interactions

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7
Q

Interactions between native and non-native species that prevent establishment of non-native species

A

Biotic resistance

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8
Q

Granivores (birds) eat enough seeds of medusa head grass to stop it from invading

A

Biotic resistance example

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9
Q

T/F Some species like the lucerne seed web moth caterpillars can slow but don’t completely stop the spreading of invasive species

A

True… I dropped a specific name of a moth obviously it’s true

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10
Q

Can alter the ability of invasive species to pass through the 3 filters into communities

A

Climate change

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11
Q

Difference in pathways and difference in environmental constraints for invasive species

A

Direct consequences of climate change

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12
Q

Transportation, colonization, establishment, spread

A

Invasion pathway

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13
Q

Differences in distributions, impacts, and management effectiveness (of invasive species in a community)

A

Indirect consequences

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14
Q

Natural selection drives competing species to use a limited resource in different ways

A

Resource partitioning

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15
Q

What effect does resource partitioning have on competition and species diversity

A

Reduces competition and increases species diversity

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16
Q

Experimental evidence that resource partitioning involving 5 types of warblers feeding on separate parts of a tree

A

MacArthur’s Warblers

17
Q

Bird diversity was not proportional to plant diversity but was proportional to structural complexity of habitat

A

Just a cool fact. Learn it or don’t

18
Q

Lakes change enough over time that no one plankton species is able to out-compete the others before conditions favour another species. Reason why so many plankton species can coexist

A

Paradox of the plankton

19
Q

Time for one species to competitively exclude another

A

tc (c is subscript but you’re gonna have to imagine that one)

20
Q

Time for environmental variation to affect population growth. Reduces all populations and inhibits competitive exclusion

A

te (same deal the e should be small, shoot me)

21
Q

What is the result if tc &laquo_space;te

A

Competitive exclusion occurs before environmental conditions change

22
Q

Low disturbance allows competitive exclusion to occur, high disturbance causes extinctions, but intermediate disturbance the porridge is just right

A

Intermediate disturbance hypothesis

23
Q

When a species prevails due to chance. Ex. damselfish in great barrier reef would die and vacate a habitat allowing for any type of other damselfish to occupy it

A

Lottery model

24
Q

Abiotic and biotic processes that control community structure

A

Community functions

25
Q

T/F Species diversity does not affect community function

A

False you idiot. If you fell for that I feel bad for your poor unintelligent offspring and their souls that will be so astonishingly ill equipped to handle the struggles of this unforgiving world

26
Q

Natural processes that sustain human life (ex. air and water purification)

A

Ecosystem services

27
Q

Which hypothesis of diversity-function relationship is it that has direct correlation of species richness to ecological function

A

Complementary hypothesis

28
Q

Which hypothesis of diversity-function displays a plateau of Community Function as species’ ecological function start to overlap

A

Redundancy hypothesis

29
Q

Who’s experimental evidence of redundancy hypothesis showed higher drought resistance and productivity with higher diversity

A

David Tilman

30
Q

Function-diversity hypothesis that accounts for some species have stronger effect on function (ex. keystone or foundation species)

A

Idiosyncratic hypothesis