Results 31 to 40 of about 196,118 (256)
Sexual Selection and Proteinaceous Diversity in the Femoral Gland Secretions of Lacertid Lizards
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]
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]
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
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]
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]
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
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]
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
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
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

