Results 31 to 40 of about 196,118 (256)

Sexual Selection and Proteinaceous Diversity in the Femoral Gland Secretions of Lacertid Lizards

open access: yesDiversity, 2023
Sexual selection contributes to the diversity of chemical signals in various animal groups. Lizards are good model species to study how sexual selection shapes signal diversity, as they are a chemically oriented taxonomic group with different levels of ...
Marco Mangiacotti   +5 more
doaj   +1 more source

The sexual selection continuum [PDF]

open access: yesProceedings of the Royal Society of London. Series B: Biological Sciences, 2002
The evolution of mate choice for genetic benefits has become the tale of two hypotheses: Fisher's 'run-away' and 'good genes', or viability indicators. These hypotheses are often pitted against each other as alternatives, with evidence that attractive males sire more viable offspring interpreted as support for good genes and with a negative or null ...
Kokko, H   +3 more
openaire   +2 more sources

Interaction-Independent Sexual Selection and the Mechanisms of Sexual Selection [PDF]

open access: yesEvolution, 1998
Darwin identified explicitly two types of sexual selection, male contests (combat and displays) and female choice, and he devoted the overwhelming majority of his examples to traits that influence the outcome of these interactions. Subsequent treatments of sexual selection have emphasized the importance of intra- and intersexual interactions as sources
openaire   +2 more sources

Sexual selection for males with beneficial mutations

open access: yesScientific Reports, 2022
Sexual selection is the process by which traits providing a mating advantage are favoured. Theoretical treatments of the evolution of sex by sexual selection propose that it operates by reducing the load of deleterious mutations.
Gilbert Roberts, Marion Petrie
doaj   +1 more source

Intralocus sexual conflict diminishes the benefits of sexual selection. [PDF]

open access: yesPLoS Biology, 2006
Evolution based on the benefits of acquiring "good genes" in sexual selection is only plausible with the reliable transmission of genetic quality from one generation to the next.
Alison Pischedda, Adam K Chippindale
doaj   +1 more source

Endless forms of sexual selection [PDF]

open access: yesPeerJ, 2019
In recent years, the field of sexual selection has exploded, with advances in theoretical and empirical research complementing each other in exciting ways.
Willow R. Lindsay   +15 more
doaj   +2 more sources

REPEATED FREEZE-THAW CYCLES BUT NOT SHORT-TERM STORAGE OF FECAL EXTRACTS AT AMBIENT TEMPERATURE INFLUENCE THE STABILITY OF STEROID METABOLITE LEVELS IN CRESTED MACAQUES

open access: yesJurnal Kedokteran Hewan, 2017
The objective of this study was to examine the effects of repeated freeze-thaw cycles and short-term storage of fecal extracts at ambient temperature on the stability of fecal glucocorticoid (fGCM) and estrogen metabolite (fEM) levels from crested ...
Gholib Gholib   +5 more
doaj   +1 more source

Sexual Selection and Sexual Dimorphism in Mottled Sculpins [PDF]

open access: yesEvolution, 1983
There are two aspects to sexual selection (Darwin, 1871). Intra-sexual selection focuses on the consequences of competition between members of one sex (usually males) for access to the other sex; whereas epigamic selection or female choice focuses on the consequences of mate preferences of one sex (usually females) with regard to the other sex ...
Jerry F, Downhower   +3 more
openaire   +2 more sources

Sexual selection, environmental robustness, and evolutionary demography of maladapted populations: A test using experimental evolution in seed beetles

open access: yesEvolutionary Applications, 2019
Whether sexual selection impedes or aids adaptation has become an outstanding question in times of rapid environmental change and parallels the debate about how the evolution of individual traits impacts on population dynamics.
Ivain Martinossi‐Allibert   +3 more
doaj   +1 more source

Frequency-dependent sexual selection with respect to offspring fitness returns is consistent with predictions from rock-paper-scissors dynamics in the European common lizard

open access: yesFrontiers in Ecology and Evolution, 2014
Genetic polymorphism can be maintained over time by negative frequency-dependent (FD) selection induced by Rock-paper-scissors (RPS) social systems. RPS games produce cyclic dynamics, and have been suggested to exist in lizards, insects, isopods, plants,
Patrick S. Fitze   +12 more
doaj   +1 more source

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