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For example, Manning et al. conducted a study in house mice that looked at the species's behavior of communal nesting, or nursing one's own pups as well as the pups of other individuals. As Manning et al. state, kin selection theory predicts that the house mice will selectively nurse the pups of their relatives in order to maximize inclusive ...
However certain natural constraints act to limit the evolution of inbreeding avoidance, particularly when there is a risk of mating with a partner of a different species (heterospecific mating) and losing fitness through hybridization. [16] Inclusive fitness appears to be maximized in matings of intermediately related individuals. [17]
In mice, both males and females choose MHC-dissimilar partners. Mice develop the ability to identify family members during early growth and are known to avoid inbreeding with kin, which would support the MHC-mediated mate choice hypothesis for inbreeding avoidance. [2] Fish are another group of vertebrates shown to display MHC-associated mate ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 12 February 2025. Order of mammals Rodent Temporal range: Late Paleocene – recent Pre๊ ๊ O S D C P T J K Pg N Capybara Springhare Golden-mantled ground squirrel North American beaver House mouse Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Mammalia Mirorder ...
Inbreeding depression is predominantly caused by the homozygous expression of recessive deleterious alleles. [166] Over time, inbreeding depression may lead to the evolution of inbreeding avoidance behaviour. Several examples of animal behaviour that reduce mating of close relatives and inbreeding depression are described next.
The avoidance of expression of such deleterious recessive alleles caused by inbreeding, via inbreeding avoidance mechanisms, is the main selective reason for outcrossing. [ 6 ] [ 7 ] Crossbreeding between populations sometimes has positive effects on fitness-related traits, [ 8 ] but also sometimes leads to negative effects known as outbreeding ...
Kin recognition, also called kin detection, is an organism's ability to distinguish between close genetic kin and non-kin.In evolutionary biology and psychology, such an ability is presumed to have evolved for inbreeding avoidance, [1] though animals do not typically avoid inbreeding.
It occurs when the organism's sex changes at some point in its life. [1] A sequential hermaphrodite produces eggs (female gametes) and sperm (male gametes) at different stages in life. [2] Sequential hermaphroditism occurs in many fish, gastropods, and plants. Species that can undergo these changes do so as a normal event within their ...