Evironmental resistance Flashcards

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1
Q

environmental resistance

A

the factors that stop a population from reproducing at a maximum rate

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2
Q

carrying capacity

A

the population density that the environment can support

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3
Q

limiting factors are

A

density Dependant factors such as physical factors and catastrophic factors as well as density dependant factors like competition, predators and disease.

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4
Q

stable population

A

one that fluctuates around the carrying capacity

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5
Q

How is population size estimated

A

Direct methods ,indirect methods and mark recapturing

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6
Q

Direct methods consist of…

A

aerial photographs and helicopters

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7
Q

indirect methods

A

is the quadrat method

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8
Q

Types of competition

A

Intraspecific and interspecific

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9
Q

Ecological niche

A

all the conditions necessary for an organism to survive and reproduce

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10
Q

competitive exclusion

A

occurs when one of the competing species are more successful

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11
Q

competitive co-existence

A

when competing species do resource partitioning

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12
Q

How can resources be partitioned

A

Diffrent time zones ,parts of a habitat or flower

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13
Q

stratification

A

partition of plants by deviding them into different layers

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