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Sexual selection
Sexual selection, a concept introduced by Charles Darwin in his 1859 book On the Origin of Species, is a significant element of his theory of natural selection. TERM 2
mate choice
DEFINITION 2 Mate choice, or intersexual selection, is an evolutionary process in which selection of a mate depends on attractiveness of its traits. TERM 3
mate
competition
DEFINITION 3 where members of a sex compete with one another for sex with the limited sexual partners TERM 4
evolution
DEFINITION 4 Evolution is the change over time in one or more inherited traits found in populations of individuals. TERM 5
founders effect
DEFINITION 5 In population genetics, the founder effect is the loss of genetic variation that occurs when a new population is established by a very small number of individuals from a larger population.
genetic drift
Genetic drift or allelic drift is the change in the frequency of a gene variant in a population due to random sampling. TERM 7
gene flow
DEFINITION 7 In population genetics, gene flow is the transfer of alleles of genes from one population to another. TERM 8
differential reproduction
DEFINITION 8 Natural selection is the nonrandom process by which biologic traits become more or less common in a population as a function of differential reproduction of their bearers. TERM 9
adaptation
DEFINITION 9 Adaptation is the evolutionary process whereby a population becomes better suited to its habitat. TERM 10
postcranial
DEFINITION 10 Postcranial in zoology and vertebrate paleontology refers to all or part of the skeleton apart from the skull.
core area
-areas where a lot of particular organisms subside-where physical, biological, and chemical conditions are good for mating, migration, reproduction, rearing, feeding, migration, and/or lack of natural disturbances. TERM 17
day range
DEFINITION 17 an are where organisms travel during time awake to gater and hunt TERM 18
territory
DEFINITION 18 In ethology the term territory refers to any sociographical area that an animal of a particular species consistently defends against conspecifics (and, occasionally, animals of other species). TERM 19
biological species concept
DEFINITION 19 In biology, a species is one of the basic units of biological classification and a taxonomic rank. TERM 20
binomial nomenclature
DEFINITION 20 Binomial nomenclature is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages.
carrying capacity
The carrying capacity of a biological species in an environment is the maximum population size of the species that the environment can sustain indefinitely, given the food, habitat, water and other necessities available in the environment. TERM 22
Intrinsic rate of
growth
DEFINITION 22 how fast a population can grow due to environmental circumstances.
