Results 11 to 20 of about 1,124,248 (284)
Audience effects in the Atlantic molly (
Frontiers in Zoology, 2009 Background Multidirectional interactions in social networks can have a profound effect on mate choice behavior; e.g., Poecilia mexicana males show weaker expression of mating preferences when being observed by a rival. This may be an adaptation to reduce
Kronmarck Claudia +6 more
doaj +2 more sources
Sperm competition and the evolution of sperm design in mammals [PDF]
BMC Evolutionary Biology, 2011 Background The influence of sperm competition upon sperm size has been a controversial issue during the last 20 years which remains unresolved for mammals.
Gomendio Montserrat +2 more
doaj +4 more sources
, 2014 Including data on sperm competition and on sperm competition success as binary data (yes or no)
Damian K. Dowling (335618) +3 more
core +3 more sources
Sperm Viability and Sperm Competition in Insects [PDF]
Current Biology, 2002 Uploaded by Plazi for TaxoDros. We do not have abstracts.
Hunter, F.M, Birkhead, T.R
openaire +6 more sources
Within-ejaculate sperm competition. [PDF]
Philos Trans R Soc Lond B Biol Sci, 2020 Sperm competition was defined by Geoff Parker 50 years ago as the competition between sperm from two or more males over the fertilization of a set of eggs. Since the publication of his seminal paper, sperm competition has developed into a large field of research, and many aspects are still being discovered.
Sutter A, Immler S.
europepmc +6 more sources
Sperm competition in squamate reptiles. [PDF]
Philos Trans R Soc Lond B Biol Sci, 2020 Multiple paternity is ubiquitous within the polyphyletic group called ‘reptiles', especially within the lizards and snakes. Therefore, the probability of sperm competition occurring, and being intense, is high. Squamates exhibit a diversity of tactics to ensure fertilization success in the face of sperm competition. The duration of female sperm storage,
Friesen CR, Kahrl AF, Olsson M.
europepmc +5 more sources
Sperm competition games: optimal sperm allocation in response to the size of competing ejaculates [PDF]
, 2007 Engqvist L, Reinhold K. Sperm competition games: optimal sperm allocation in response to the size of competing ejaculates. Proceedings of the Royal Society B.
Reinhold, Klaus +1 more
core +1 more source
Sperm competition selects for sperm quantity and quality in the Australian Maluridae.
PLoS ONE, 2011 When ejaculates from rival males compete for fertilization, there is strong selection for sperm traits that enhance fertilization success. Sperm quantity is one such trait, and numerous studies have demonstrated a positive association between sperm ...
Melissah Rowe, Stephen Pruett-Jones
doaj +1 more source
Variation in apical hook length reflects the intensity of sperm competition in murine rodents. [PDF]
PLoS ONE, 2013 BackgroundPost-copulatory sexual selection has been shown to shape morphology of male gametes. Both directional and stabilizing selection on sperm phenotype have been documented in vertebrates in response to sexual promiscuity.MethodologyHere we ...
Martin Šandera +2 more
doaj +1 more source
Sperm competition risk drives rapid ejaculate adjustments mediated by seminal fluid
eLife, 2017 In many species, males can make rapid adjustments to ejaculate performance in response to sperm competition risk; however, the mechanisms behind these changes are not understood.
Michael J Bartlett +3 more
doaj +1 more source