Webb14 feb. 2011 · The "polygyny threshold" model, first outlined by G. H. Orians in 1969, can be viewed as a functional explanation for the maintenance of polygyny in a population by … Webb9 juni 2015 · Resource polygyny incurs costs of having to share breeding resources for female breeders. When breeding with a relative, however, such costs may be lessened by indirect fitness benefits through kin selection, while benefits from mutualistic behaviour, such as communal defence, may increase.
Monogamy and polygyny in Southeast Arnhem land: Male …
WebbThe polygyny threshold model was introduced in the 1960s in order to explain why females in some species choose to mate vith already mated males. Since then, a number of … Webb29 okt. 2024 · The polygyny threshold model is an explanation of polygyny, the mating of one male of a species with more than one female. The model shows how females may … improve breathing problem
(PDF) Skewed soldier sex ratio in termites: testing the size-threshold …
WebbFor this purpose, we used likelihood analyses using AsymmMk model and 7 the Mk1 model, as well as parsimony analysis. The Mk1 model has a single parameter, the rate of change, and therefore supposes that any particular change is equally probable; while the AsymmMk model possesses two parameters, one for the forward rate of change and … Webb16 mars 2024 · Dr. Kai P. Willführ ist wissenschaftlicher Mitarbeiter am Institut für Sozialwissenschaft an der Carl von Ossietzky Universität Oldenburg. Kai forscht interdisziplinär in Evolutionärer Anthropologie, Demografie und anderen Gebieten der quantitativen Sozialwissenschaften. Ein Forschungsschwerpunkt liegt hierbei auf … WebbAnswers : 3. C - (thyroxine) Olfactor imprinting (based on parr-smolt tra …. 3. The crucial hormone for olfactory imprinting in salmon during the parr-smolt transformation is A. … improve breathing for foam mattress