The Evolution of Mammalian Sociality in an Ecological Perspective
- BiologySpringerBriefs in Ecology
This chapter provides an overview of mammalian social evolution, including selected history and preliminary definitions, and a brief discussion of “routes” to sociality, constrained by Hamilton’s rule.
The Influence Of Sexual Selection On Behavioral And Physiological Mechanisms Underlying Reproductive Success In Male Cape Ground Squirrels (xerus Inauris)
Females drive primate social evolution
- Biology, PsychologyProceedings of the Royal Society of London. Series B: Biological Sciences
It is found that change in male membership in primate groups is positively correlated with divergence time in pairwise comparisons, consistent with male numbers adjusting to female group size and highlights the importance of focusing on females when studying primate social evolution.
Larger is not better: No mate preference by European Common Frog (Rana temporaria) males
In successfully formed pairs, the females were on average larger than the males, an observation which deviated from the null-model where pairs should be of similar size if mating would be random, indicating that selection takes place, independent from male mating preference or scramble competition.
Genotype‐by‐environment interactions for precopulatory mate guarding in a lek‐mating insect
- Biology, PsychologyEcology and evolution
A potential for adaptive evolution of mate‐guarding plasticity in natural populations of lek‐mating species is suggested after significant inbred line‐by‐competitor treatment interactions on mating latency and copulation duration with the second female were found suggesting genetic variation in the degree of behavioral plasticity.
Competition for access to mates predicts female‐specific ornamentation and male investment in relative testis size
- BiologyEvolution; international journal of organic evolution
The incidence of both heightened premating sexual selection on females and postmating selection on males contradicts assertions that sex roles are straightforwardly reversed in dance flies and supports the hypothesis that ornament diversity in dance fly depends on female receptivity to mates, which is associated with contests for nutritious nuptial gifts provided by males.
Competition for access to mates predicts female-specific ornamentation and polyandry
The hypothesis that ornament diversity in dance flies depends on female receptivity, which is associated with contests for nutritious nuptial gifts provided by males, is supported and increases infemale receptivity lead to higher levels of polyandry and sperm competition among males.
Geographical and temporal variation of multiple paternity in invasive mosquitofish (Gambusia holbrooki, Gambusia affinis)
- Environmental ScienceMolecular ecology
While the results confirm an increase of MP in harsher/more unpredictable environments, path analysis indicated that, in both cases, the effects of climate are likely to be indirect, mediated by altered life histories.
Reproductive rhythms, variation in operational sex ratio and sexual selection in crustaceans
- BiologyInvertebrate Reproduction & Development
This model provides new predictions about the link between OSR and sexual selection and revives the long-lasting debate about OSR as an accurate estimate of sexual selection strength.
Correlated evolution of sex allocation and mating system in wrasses and parrotfishes
Comparisons are among the first to confirm the adaptive significance of sex change as described by the size-advantage model and reveal strikingly similar patterns of sex allocation and mating system evolution with comparable lability in wrasses and parrotfishes.
SHOWING 1-10 OF 78 REFERENCES
- Environmental ScienceThe Yale Journal of Biology and Medicine
The availability of carbon (C), nitrogen (N) and sulfur (S) for the vegetation has increased in many ecosystems on earth since beginning of the industrial revolution. The change in availability of…
SOCIOBIOLOGY: THE NEW SYNTHESIS. By Edward O. Wilson. Cambridge: Harvard University Press, 1975. 697 pp. $20.00
Aggressiveness, Territoriality, and Sexual Behavior in Field Crickets (Orthoptera: Gryllidae)
Groups of adult male field crickets caged in small arenas form essentially linear dominance hierarchies which are stable for short periods of time and can be described in terms of several characteristics.
Possible Role of Behavior in Regulating Greater Prairie Chicken Populations
- Environmental Science
Inter-booming ground movements of both males and females indicated that booming ground areas could not be considered separate gene pools, and data acquired may be helpful in determining the role of behavior in population dynamics of greater prairie chickens in Kansas.
Annual Population Changes in California Quail
- Environmental Science
Observations and age ratios obtained during fall hunting have indicated wide fluctuation of reproductive success, age ratios varying from 6-81 percent young, and the key factor in reproductive rate was the drive to keep nesting and renesting throughout the summer, resulting presumably from a physiological preconditioning whose nature and origin is unknown.
The Influence of Age and Pair-Bond on the Breeding Biology of the Red-Billed Gull Larus novaehollandiae scopulinus
The Influence of the Pair-Bond and Age on the Breeding Biology of the Kittiwake Gull Rissa tridactyla