Abstract:
:We examined the selective consequences of variation in behaviour and endocrine physiology in two female throat-colour morphs of the lizard, Uta stansburiana in the wild. Female morphs differed in home-range distribution patterns and corticosterone levels in relation to the density and frequency of their female neighbours. Levels of plasma corticosterone of yellow-throated females increased with increased density of both morphs. In contrast, orange-throated females had reduced levels of corticosterone in response to increased density of orange females. Additionally, females with lower corticosterone survived poorly, suggesting that social interactions and high local densities of orange females may be potentially costly for orange females. These results are consistent with decreased fitness effects and suppression of immune function previously reported for orange female morphs surrounded by more orange neighbours. These correlations, in conjunction with previous work in this system, indicate that corticosterone is likely to be an important physiological mechanism regulating female fitness in nature.
journal_name
J Evol Bioljournal_title
Journal of evolutionary biologyauthors
Comendant T,Sinervo B,Svensson EI,Wingfield Jdoi
10.1046/j.1420-9101.2003.00598.xkeywords:
subject
Has Abstractpub_date
2003-09-01 00:00:00pages
948-55issue
5eissn
1010-061Xissn
1420-9101journal_volume
16pub_type
杂志文章abstract::Post-copulatory sexual selection, in the form sperm competition, has influenced the evolution of several male reproductive traits. However, theory predicts that sperm competition would lead to trade-offs between numbers and size of spermatozoa because increased costs per cell would result in a reduction of sperm numbe...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12698
更新日期:2015-10-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
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更新日期:2009-11-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2004.00833.x
更新日期:2005-03-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2007.01318.x
更新日期:2007-05-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2011.02278.x
更新日期:2011-07-01 00:00:00
abstract::It is a challenge to measure sexual selection because both stochastic events (chance) and deterministic factors (selection) generate variation in individuals' reproductive success. Most researchers realize that random events ('noise') make it difficult to detect a relationship between a trait and mating success (i.e. ...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2011.02451.x
更新日期:2012-03-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12781
更新日期:2016-02-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2010.01941.x
更新日期:2010-04-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12782
更新日期:2016-02-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.13765
更新日期:2021-01-22 00:00:00
abstract::Cetaceans possess brains that rank among the largest to have ever evolved, either in terms of absolute mass or relative to body size. Cetaceans have evolved these huge brains under relatively unique environmental conditions, making them a fascinating case study to investigate the constraints and selection pressures th...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.13539
更新日期:2019-12-01 00:00:00
abstract::Female insects that mate multiply tend to have increased lifetime fitness, apparently because of greater access to male-derived resources (e.g. sperm, nuptial gifts) that elevate fertility/fecundity. Experiments that standardize the number of matings per female also show that polyandry can improve aspects of offspring...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2007.01333.x
更新日期:2007-07-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12848
更新日期:2016-06-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12835
更新日期:2016-05-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12257
更新日期:2013-12-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2010.01994.x
更新日期:2010-06-01 00:00:00
abstract::Current advances in genetic analysis are opening up our knowledge of the genetics of species differences, but challenges remain, particularly for out-bred natural populations. We constructed a microsatellite-based linkage map for two out-bred lines of Drosophila montana derived from divergent populations by taking adv...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2009.01916.x
更新日期:2010-03-01 00:00:00
abstract::Phenotypic variation can arise from differences in the protein coding sequence and in the regulatory elements. However, little is known about the contribution of regulatory difference to the expression divergence, especially the cis and trans regulatory variation to the expression divergence in intraspecific populatio...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.13584
更新日期:2020-01-09 00:00:00
abstract::Because pollinators are unable to directly assess the amount of rewards offered by flowers, they rely on the information provided by advertising floral traits. Thus, having a lower intra-individual correlation between signal and reward (signal accuracy) than other plants in the population provides the opportunity to r...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
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更新日期:2010-12-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2012.02601.x
更新日期:2012-11-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
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更新日期:2019-01-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2009.01926.x
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2004.00692.x
更新日期:2004-05-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12784
更新日期:2016-02-01 00:00:00
abstract::Evolutionary theory predicts that selection will favour sperm traits that maximize fertilization success in local fertilization environments. In externally fertilizing species, osmolality of the fertilization medium is known to play a critical role in activating sperm motility, but there remains limited evidence for a...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
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更新日期:2015-03-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
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更新日期:2014-01-01 00:00:00
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1046/j.1420-9101.2003.00624.x
更新日期:2003-11-01 00:00:00
abstract::Squamate embryos require weeks of high temperature to complete development, with the result that cool climatic areas are dominated by viviparous taxa (in which gravid females can sun-bask to keep embryos warm) rather than oviparous taxa (which rely on warm soil to incubate their eggs). How, then, can some oviparous ta...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
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journal_title:Journal of evolutionary biology
pub_type: 杂志文章
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更新日期:2005-11-01 00:00:00