Lecture 5.2 Flashcards

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1
Q

Interaction between organisms and their environment

A

Ecology

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2
Q

groups of populations that are interacting

A

Community

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3
Q

the living together of two or more different kinds of organisms, more or less permanently

A

Symbiosis

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4
Q

when one individual is neutral about the interaction and one benefits

A

Commensalism

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5
Q

The plant example of commensalism mentioned in lecture

A

Epifights: fungus growing on another plant

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6
Q

A living arrangement in which an organism lives on or in an organism of a different species and derives nutrients from it.

A

Parasitism

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7
Q

Plant example of parasitism mentioned in lecture

A

Mistletoe grows naturally as a plant parasite

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8
Q

when two organisms benefit each other

A

Mutualism

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9
Q

What is the mutualistic relationship of pea plants and nitrogen fixing bacteria

A

The pea plant gets a bunch of nitrogen and the bacterium gets a place to live and some sugars.

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10
Q

a species of special importance in a community. Ex) Beavers influence is huge on where they live

A

Keystone species

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11
Q

Interaction between organisms for a limited but required resource

A

Competition

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12
Q

a form of competition in which individuals of different species compete for the same resource in an ecosystem

A

Interspecific

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13
Q

Competition between organisms of the same species

A

Intraspecific competition

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14
Q

an organisms functional role in a community

A

Niche

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15
Q

the entire niche of the organisms, everything it could potentially do

A

Fundamental niche

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16
Q

the actual niche with competitors etc, present

A

realized niche

17
Q

Barnacles on a rock, in some locations there are more than one species present. If just one is present then it can flourish, if both are present then it can only grow it some of the space
This is an example of

A

Fundamental vs realized niche

18
Q

Only one species can occupy a particular niche at one time. If two species are present one will go extinct

A

Gause’s Principle

19
Q

Explain Gause’s principle and the New England Warblers

A

In New England trees there were 5 species of Warbler living together. He found that each species had its own niche
Each species lived in different sections of the tree. This did not contradict Gause

20
Q

refers to the phenomenon where differences among similar species whose distributions overlap geographically are accentuated in regions where the species co-occur, but are minimized or lost where the species’ distributions do not overlap. This pattern results from evolutionary change driven by competition among species for a limited resource (e.g. food).

A

Character displacement

21
Q

The killing and eating of one organism by a second organism

A

Predator/prey relationship