Female extra-pair mating: adaptation or genetic constraint?
Why do females of so many socially monogamous species regularly engage in matings
outside the pair bond? This question has puzzled behavioural ecologists for more than two …
outside the pair bond? This question has puzzled behavioural ecologists for more than two …
Comparative evidence for the evolution of sperm swimming speed by sperm competition and female sperm storage duration in passerine birds
Sperm swimming speed is an important determinant of male fertility and sperm
competitiveness. Despite its fundamental biological importance, the underlying evolutionary …
competitiveness. Despite its fundamental biological importance, the underlying evolutionary …
Causes of extra-pair paternity and its inter-specific variation in socially monogamous birds
D Wan, P Chang, J Yin - Acta Ecologica Sinica, 2013 - Elsevier
Based on molecular technology, researchers find that extra-pair paternity (EPP) prevails
among socially monogamous bird species. This phenomenon challenges traditional views …
among socially monogamous bird species. This phenomenon challenges traditional views …
The vocal learning constellation: Imitation, ritual culture, encephalization
B Merker - Music, language and human evolution, 2012 - books.google.com
Throughout the rich diversity of animal forms and functions there is neither analogue nor
homologue of human language (Maynard Smith and Szathmáry 1995). The singular novelty …
homologue of human language (Maynard Smith and Szathmáry 1995). The singular novelty …
Sperm quantity and quality effects on fertilization success in a highly promiscuous passerine, the tree swallow Tachycineta bicolor
Sperm competition is widespread among animal taxa and considered a major force in sperm
evolution. Recent comparative studies have indicated that sperm competition selects for …
evolution. Recent comparative studies have indicated that sperm competition selects for …
Mate guarding and frequent copulation in birds: a meta-analysis of their relationship to paternity and male phenotype
In many birds, males are presumed to protect their paternity by closely guarding their mate
or copulating frequently with her. Both these costly behaviors are assumed to reduce the risk …
or copulating frequently with her. Both these costly behaviors are assumed to reduce the risk …
Selection on Sperm Count, but Not on Sperm Morphology or Velocity, in a Wild Population of Anolis Lizards
Sperm competition is a widespread phenomenon that shapes male reproductive success.
Ejaculates present many potential targets for postcopulatory selection (eg, sperm …
Ejaculates present many potential targets for postcopulatory selection (eg, sperm …
Fitness benefits of polyandry for experienced females
LA Whittingham, PO Dunn - Molecular Ecology, 2010 - Wiley Online Library
Females often mate with several different males, which may promote sperm competition and
increase offspring viability. However, the potential benefits of polyandry remain …
increase offspring viability. However, the potential benefits of polyandry remain …
Individual and environmental determinants of reproductive success in male tree swallow (Tachycineta bicolor)
Evaluating the contribution of individual and environmental determinants of reproductive
success is essential to improve our understanding of sexual selection. In socially …
success is essential to improve our understanding of sexual selection. In socially …
Temporal dynamics of competitive fertilization in social groups of red junglefowl (Gallus gallus) shed new light on avian sperm competition
R Carleial, GC McDonald… - … of the Royal …, 2020 - royalsocietypublishing.org
Studies of birds have made a fundamental contribution to elucidating sperm competition
processes, experimentally demonstrating the role of individual mechanisms in competitive …
processes, experimentally demonstrating the role of individual mechanisms in competitive …