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Flashcards in Speciation Deck (35):
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Term that describes the point where two groups in a population separate into different species during speciation

Adaptive radiation

1

The type of reproductive isolation in which a physical barrier separates two populations

Allopatric speciation

2

The term that means that organisms tend to try to meet with organisms that have similar traits to themselves

Assortive mating

3

The type of reproductive isolation in which an organism's courtship activities cause populations to separate ex. dance and songs

Reproductive isolation: behavioral

4

The group of individuals that can interbreed and produce fertile offspring Bret typically cannot breed with members of another species

Biological species concept

5

The occurrence when a population size is reduced for at least one generation, it can reduce genetic variation greatly.

Bottleneck effect

6

X

Convergence

7

Occurs when natural selection for similar environmental factors causes unrelated organisms to resemble each other

Convergent evolution

8

The term that means that a new species is created when enough gene flow occurs

Divergence

9

The establishment of a new population far from the original population may lead to the evolution of several new species

Founders effect

10

The type of reproductive isolation and which sperm and egg are not able to combine

Reproductive isolation: gametic incompatibility

11

The total genetic content of a population of organisms in an area

Gene pool

12

Identifies as separate species populations with a unique lineage

Genealogical species concept

13

Changes that occur in allele frequency due to chance

Genetic drift

14

The type of reproductive isolation in which populations are separated because breeding occurs at different times of the year

Reproductive isolation: geological

15

States that it will be a freaking seats will remain stable and populations that are large in size random mating and experiencing no migration or natural selection

Hardy Weinberg principle

16

X

Hybrid sterility

17

X

Hybrid inviability

18

D

Mass extinction

19

Species consist of organisms that share a set of unique physical characteristics that is not found in other groups of organisms

Mechanical reproductive isolation

20

Relies on different characteristics among species

Morphology species concept

21

The mode of speciation in which new organisms are formed on the outskirts of an environment and new niches are formed

Parapatric speciation

22

The condition in which a mistake occurs during meiosis and doubles the number of chromosomes

Polyploidyism

23

The term for periods of stability that are followed by quick bursts of changes in populations

Punctuated equilibrium

24

The mode of speciation in which two species day bridge from with in the same ecosystem

Reproductive isolation

25

The lack of gene flow that causes two distinct populations from one ancestral form

Speciation

26

The name for organisms that can interbreed and create fertile offspring

Species

27

The pattern of speciation that occurs very quickly because many variations are created when they move to new niche is it to avoid competition

Sympatric speciation

28

The mode of speciation in which a physical barrier causes divergence that can also be called geographic

Temporal

29

P plus Q equals one

Allele frequency

30

Spatial behavioral mechanical Temporel gamete incompatibility

Pre-zygotic reproductive isolation

31

Hybrid invisibility and Hybrid sterility

Post zygotic reproductive isolation

32

No mutation
population is large
mating is random
no immigration or immigration genotype is suited for survival

Genetic equilibrium

33

Opposite of genetic equilibrium

Microevolution

34

P squared plus 2PQ plus Q squared equals one

Genotype frequencie