Speciation 1 Flashcards

1
Q

Biological Species Concept

A

This defines species as groups of actually or potentially interbreeding natural populations that are reproductively isolated from other such groups

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2
Q

Temporal isolation

A

Mating or flowering at different seasons or at different times of the day

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3
Q

Behavioral isolation

A

Species have different mating rituals

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4
Q

Ecological isolation

A

Species utilize different resources in the habitat

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5
Q

Mechanical isolation

A

Structural differences prevent mating or pollen transfer.

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6
Q

Geographic isolation

A

species occur in different places

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7
Q

prevention of gamete fusion

A

structural differences prevent mating or pollen transfer

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8
Q

Hybrid Inviability

A

Prevents interbreeding between populations when their hybrids die young or are unable to reproduce

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9
Q

adult hybrids can not reproduce due to mating behaviors that are a mixture of two parents

A

Hybrid Inviability

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10
Q

Bishop and Monterey pines will interbreed in the lab but not in nature due to differing pollination times

A

Temporal Isolation

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11
Q

What are the three steps after fertilization in Postzygotic Isolation Mechanisms that offspring have to go through?

A

Bad development, don’t survive in nature (SOTF), sterile or reduced fertility

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12
Q

Means that alleles do not move between the gene pools of different species

A

Independent evolution

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