Sex roles and sex ratios in animals
In species with separate sexes, females and males often differ in their morphology,
physiology and behaviour. Such sex‐specific traits are functionally linked to variation in …
physiology and behaviour. Such sex‐specific traits are functionally linked to variation in …
Adult sex ratios: causes of variation and implications for animal and human societies
Converging lines of inquiry from across the social and biological sciences target the adult
sex ratio (ASR; the proportion of males in the adult population) as a fundamental population …
sex ratio (ASR; the proportion of males in the adult population) as a fundamental population …
Adult sex ratio variation: implications for breeding system evolution
T Székely, FJ Weissing… - Journal of evolutionary …, 2014 - academic.oup.com
Adult sex ratio (ASR) exhibits immense variation in nature, although neither the causes nor
the implications of this variation are fully understood. According to theory, the ASR is …
the implications of this variation are fully understood. According to theory, the ASR is …
Sexual conflict in animals
CM Lessells - Levels of selection in evolution, 1999 - degruyter.com
Whatever the reasons for the evolution of sexual reproduction, it leads to a situation in which
there are two individuals who may have no genetic interest in each other's future, the …
there are two individuals who may have no genetic interest in each other's future, the …
[图书][B] The boreal owl: ecology, behaviour and conservation of a forest-dwelling predator
E Korpimäki, H Hakkarainen - 2012 - books.google.com
Widespread in North American forest regions including the Rocky Mountains, the Boreal Owl
(Aegolius funereus) was once the most numerous predatory bird in Eurasian boreal forests …
(Aegolius funereus) was once the most numerous predatory bird in Eurasian boreal forests …
[HTML][HTML] Divorce and infidelity are associated with skewed adult sex ratios in birds
Adult sex ratio (ASR) is a fundamental concept in population demography, and recent theory
suggests that ASR plays a central role in social behavior, mating systems, and parental care …
suggests that ASR plays a central role in social behavior, mating systems, and parental care …
Parental and Mating Effort: Is There Necessarily a Trade‐Off? (Invited Review)
One of the common assumptions in the study of the evolution of parental care is that trade‐
offs exist between parental investment and other fitness‐related traits. In general, this body …
offs exist between parental investment and other fitness‐related traits. In general, this body …
Males prefer ornamented females: a field experiment of male choice in the rock sparrow
Recent evidence suggests that female ornaments in birds not only are genetic correlates of
selection on males but may also have evolved by selection acting directly on females …
selection on males but may also have evolved by selection acting directly on females …
Evolution of classical polyandry: three steps to female emancipation
M Andersson - Ethology, 2005 - Wiley Online Library
(Invited Article) Abstract In classical polyandry, sex roles are reversed and a female
reproduces with several males, each of whom raises his offspring with little or no help from …
reproduces with several males, each of whom raises his offspring with little or no help from …
Sexual conflict about parental care: the role of reserves
Parental care often increases the survival of offspring, but it is costly to parents. Because of
this trade-off, a sexual conflict over care arises. The solution to this conflict depends on the …
this trade-off, a sexual conflict over care arises. The solution to this conflict depends on the …