Consulta: subjectFacets:"Mating success"
Registros recuperados: 4
Data/hora: 11/06/2024 14:41:47

Atividade reprodutiva de Physalaemus signifer (Anura, Leptodactylidae) em ambiente temporário
Provedor de dados: 76
Autores: Wogel,Henrique; Abrunhosa,Patrícia A.; Pombal Jr.,José P.
The breeding activity of Physalaemus signifer (Girard, 1853) was monitored from July 1999 to July 2000 in a temporary pond in Palmital, Municipality of Saquarema, State of Rio de Janeiro, Atlantic Rain Forest, Brazil. Males were sexually actives only in four nights, arriving at the pond on the early rainy season. Males in amplexus were larger and spent more nights in the reproductive aggregation than solitary ones. The number of nights was correlated with the mass of the males. Males adopted satellite behavior as alternative tactic for mate acquisition. Changes between calling and satellite tactics were observed in different nights. Calling males were not larger and heavier than satellite ones. Satellite behavior seemed to be related with the order of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amphibia; Physalaemus; Mating success; Satellite behavior; Agonistic behavior.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212002000200006

Simultaneous age-dependent and age-independent sexual selection in the lekking black grouse (Lyrurus tetrix)
Provedor de dados: 5
Autores: Kervinen, Matti; Lebigre, Christophe; Soulsbury, Carl D.
Individuals' reproductive success is often strongly associated with their age, with typical patterns of early-life reproductive improvement and late-life senescence. These age-related patterns are due to the inherent trade-offs between life-history traits competing for a limited amount of resources available to the organisms. In males, such trade-offs are exacerbated by the resource requirements associated with the expression of costly sexual traits, leading to dynamic changes in trait expression throughout their life span. Due to the age dependency of male phenotypes, the relationship between the expression of male traits and mating success can also vary with male age. Hence, using longitudinal data in a lekking species with strong sexual selection - the...
Tipo: Text
Palavras-chave: Annual reproductive success; Fitness; Lek; Long-term data; Mating success; Selection differential; Selection gradient; Senescence; Tetrao tetrix.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00370/48145/48270.pdf

Are larger and/or more symmetrical Drosophila melanogaster (Diptera, Drosophilidae) males more successful in matings in nature?
Provedor de dados: 92
Autores: Pavković-Lu&amp;#269;ić,Sofija; Kekić,Vladimir.
Are larger and/or more symmetrical Drosophila melanogaster (Diptera, Drosophilidae) males more successful in matings in nature? Sexual selection in Drosophila melanogaster, related to body size and fluctuating asymmetry in wing length and number of sex comb teeth in males, was tested in natural conditions. Males collected in copula were significantly larger than those collected as a single, while no difference in mean number of sex comb teeth between copulating and single males was observed. On the other hand, single males had greater asymmetry both for wing length and number of sex comb teeth than their mating counterparts. It looks like that symmetry of these bilateral traits also may play a role in sexual selection in this dipteran species in nature.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Body size; Drosophila melanogaster; Fluctuating asymmetry; Mating success; Sex combs.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000400015

Frequency-dependence of mating success in Poeciliopsis monacha (Pisces, Cyprinodontiformes) reproductive complex, Sonora, Mexico
Provedor de dados: 52
Autores: Lima,Neuza Rejane Wille; Bizerril,Carlos Roberto S. F.
A diversity of all-female fishes of the genus Poeciliopsis coexists with their sexual ancestor species in streams of western Mexico. All-females are hybrids that depend on the sperm of paternal species to reproduce. Rare-female advantage is one of several hypotheses that attempt to explain how the diversity of all-female biotypes is maintained within the Poeciliopsis reproductive complexes. According to this hypothesis, the uncommon all-female biotype has a mating advantage over the common ones and has been maintained by a dynamic equilibrium process. In the P. monacha reproductive complex at Arroyo de los Platanos the density of two all-female biotypes (P. 2monacha-lucida I and II) varies across pools. The objective of this study was to analyse fecundity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: All-females; Mating success; Poeciliopsis monacha; Rare-female advantage.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000200006