The polygyny threshold model
WebbThe "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 natural … Webb1 mars 2003 · Abstract. The rationale behind the polygyny threshold model is that the breeding situation quality (BSQ) males have to offer females varies, and that difference
The polygyny threshold model
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Webb1 okt. 2000 · I propose a model of our mating system incorporating both factors. Variation in the mating system is explained by variation in male resource control and contribution, resulting in ecologically imposed monogamy or polygyny, as predicted by the polygyny threshold model, as well as variation in male-male competition for status, resulting in … WebbPolygyny Threshold Model Quality of Breeding Situation Female Reproductive Success Consider a different arrangement of breeding territories F E D C B A monogamy polygyny …
Webb1 aug. 1989 · Behav., 1989, 38, 226-234 Sexual conflict and the polygamy threshold N. B. DAVIES Department of Zoology, University of Cambridge, Downing Street, Cambridge … Webb31 jan. 2024 · This work assesses whether the physical movements of parasite defense behavior increase the complexity and attractiveness of an acoustic sexual signal in the little torrent frog and suggests that midge-induced movements may be incorporated into a sexual display, targeting both hearing and vision in the intended receiver. Expand 2 PDF …
http://artandpopularculture.com/Polygyny_threshold_model WebbDownloadable (with restrictions)! The polygyny threshold model states that if costs incurred are less than the benefits gained from mating polygynously in terms of breeding …
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 gain a higher level of biological fitness by mating with a male who already has a mate. The female makes this choice despite other surrounding males … Visa mer The graphical depiction of the model presented in Gordon Orians' 1969 paper is often used to explain the concept. The graph shows two curves on a graph of biological fitness versus environmental quality. … Visa mer According to William A. Searcy and Ken Yasukawa, the term cost of polygyny is defined as the net costs of polygyny after the summation of all … Visa mer • Hypergamy Visa mer Studies in human populations have demonstrated a decline of polygyny in highly stratified societies where rival wealth is … Visa mer
Webb1 juli 1991 · In support of the polygyny threshold model based on male wealth (model 1a), Kipsigis women chose husbands that offered better resources at the time, as measured by a (co-)wife's expected share of the husband's land (Borgerhoff Mulder, 1990). sportscotland facebookWebbthe polygyny threshold model to explain the mating system of several species (Davies 1989) have led to several extensions of the model (Lightbody & Weatherhead 1987; Leonard 1990; Bensch & Hasselquist 1991; Slagsvold & Lifjeld 1994). An important consequence of polygyny is that already settled females may also incur costs of polygyny shel silverstein book quotesWebb1 feb. 2024 · The results presented here suggest that the polygyny threshold model is valid in a population genetic context: if the fitness of females that actually mate polygynously is greater than the Fitness of monogamous females on poorer breeding situations,polygyny evolves. 16 Highly Influential PDF View 4 excerpts, references background and results shel silverstein britannicaWebbThe 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 gain a higher … sports co timetableWebbAnswer) Polygyny threshold model: The polygyny threshold model is an explanation of polygyny, the mating of one male of a species with more than one female. The model … sports cosmeticsWebbFemales overwhelmingly preferred the already-mated males, demonstrating that superior territory quality can reverse preferences based on mating status and supporting the polygyny threshold model as the … sportscotland cwps renewalWebbExperimental confirmation of the polygyny threshold model for red-winged blackbirds. Experimental confirmation of the polygyny threshold model for red-winged blackbirds. William Searcy. 2001, Proceedings of the Royal … shel silverstein cancelled