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The Dobzhansky–Muller incompatibilities can result from purely random, neutral or non-selected differences between the populations. They can also be driven by natural selection in at least two ways. When two populations diverge from each other and encounter new - and different - environments they may adapt to these environments.
incomplete dominance incomplete speciation incipient species Any population that is in an early stage of speciation. inheritance See heredity. interbreeding intercross A cross in which both the male and female parents are heterozygous at a particular locus. [8] intrinsic postzygotic isolation introgression. Also introgressive hybridization.
Evidence for animal culture is often based on studies of feeding behaviors, [8] vocalizations, [4] predator avoidance, [9] mate selection, [10] and migratory routes. [11] An important area of study for animal culture is vocal learning, the ability to make new sounds through imitation. [4] Most species cannot learn to imitate sounds.
Behavioral ecology, also spelled behavioural ecology, is the study of the evolutionary basis for animal behavior due to ecological pressures. Behavioral ecology emerged from ethology after Niko Tinbergen outlined four questions to address when studying animal behaviors: What are the proximate causes, ontogeny, survival value, and phylogeny of a behavior?
The cultural selection theory faces many objections due to the lack of evidence to support the adaptation of natural selection in the structural mechanisms of cultural systems. Major objections against the cultural selection theory stem from Lamarckianism , genotype-phenotype distinction , common hereditary architecture, biological analogue for ...
Darwin's theory of evolution by natural selection is the only scientific explanation for why an animal's behaviour is usually well adapted for survival and reproduction in its environment. However, claiming that a particular mechanism is well suited to the present environment is different from claiming that this mechanism was selected for in ...
Dual inheritance theory (DIT), also known as gene–culture coevolution or biocultural evolution, [1] was developed in the 1960s through early 1980s to explain how human behavior is a product of two different and interacting evolutionary processes: genetic evolution and cultural evolution.
Species that possess positive adaptive behaviors will inherently acquire evolutionary advantages. For example, adaptive behavior is a mechanism of population stabilization . [ 23 ] In natural communities, organisms are able to interact with each other creating complex food webs and predator-prey dynamics .