Abstract:
:Sexually selected traits confer greater reproductive benefits to individuals with more elaborate forms of the signal. However, whether these signals convey reliable information about the physiology underlying trait development remains unknown in many species. The steroid hormone corticosterone (CORT) mediates important physiological and behavioral processes during the vertebrate stress response, and CORT secretion itself can be modulated by melanocortins. Thus, sexually selected melanin-based plumage coloration could function as an honest signal of an individual's ability to respond to stressors. This hypothesis was tested in North American barn swallows, Hirundo rustica erythrogaster, where males with darker ventral plumage color exhibit higher phaeomelanin content and are more successful at reproduction. Because reproductive behavior occurs months after plumage signals are developed, we also addressed the potential temporal disconnect of physiological state during trait development and trait advertisement by analyzing three different measurements of CORT levels in adult males during the breeding season (trait advertisement) and in nestling males while they were growing their feathers (trait development). Variation in adult plumage color did not predict baseline or stress-induced CORT, or stress responsiveness. Likewise, there was no relationship between nestling plumage color and any of the CORT measurements, but heavier nestlings had significantly lower baseline CORT. Our finding that a predominantly phaeomelanin-based trait is unrelated to circulating CORT suggests that phaeomelanin and eumelanin signals may convey different physiological information, and highlights the need for further study on the biochemical links between the hypothalamic-pituitary-adrenal (HPA) axis and the production of different melanin-based pigments.
journal_name
Horm Behavjournal_title
Hormones and behaviorauthors
Jenkins BR,Vitousek MN,Safran RJdoi
10.1016/j.yhbeh.2013.08.006subject
Has Abstractpub_date
2013-09-01 00:00:00pages
665-72issue
4eissn
0018-506Xissn
1095-6867pii
S0018-506X(13)00160-8journal_volume
64pub_type
杂志文章abstract::A total of 54 ovariectomized female guinea pigs were divided into three groups and tested six times at 2-week intervals for their responsiveness to exogenous ovarian hormones (3 days of 4 micrograms/kg estradiol benzoate plus 1 day of 0.4 mg/kg progesterone) or control injections (0.2 ml oil vehicle). Two weeks after ...
journal_title:Hormones and behavior
pub_type: 杂志文章
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更新日期:1985-03-01 00:00:00
abstract::Environmental stress conditions are important factors in human health and should be considered in the development of appropriate health policies, since they have been associated with psychological disorders and even with death. A link between stress and changes in 3alpha,5alpha-reduced neurosteroids has been reported....
journal_title:Hormones and behavior
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doi:10.1016/j.yhbeh.2009.07.001
更新日期:2009-09-01 00:00:00
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journal_title:Hormones and behavior
pub_type: 杂志文章,meta分析
doi:10.1006/hbeh.2001.1748
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abstract::Androgens are an important class of steroid hormones involved in modulating the expression and evolution of male secondary sex characters. Vocalizations used in the context of aggression and mate attraction are among the most elaborate and diverse androgen-dependent animal displays as reflected in a rich tradition of ...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2010.10.011
更新日期:2011-01-01 00:00:00
abstract::There are currently no FDA-approved pharmacotherapies for cocaine abuse. Converging preclinical and clinical evidence indicates that progesterone may have potential as a treatment for cocaine-abusing women, who represent a growing portion of cocaine users. We have previously shown that oral progesterone reduced the po...
journal_title:Hormones and behavior
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.yhbeh.2010.12.009
更新日期:2011-02-01 00:00:00
abstract::In vertebrates, glucocorticoid secretion occurs in response to energetic and psychosocial stressors that trigger the hypothalamic-pituitary-adrenal (HPA) axis. Measuring glucocorticoid concentrations can therefore shed light on the stressors associated with different social and environmental variables, including domin...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2020.104826
更新日期:2020-09-01 00:00:00
abstract::Animal studies indicate that sex hormones have widespread effects on the brain, cognition and emotion, but findings in humans are inconsistent. Well-controlled studies in nonhuman primates are crucial to resolve these discrepancies. In this study, we examined the effects of testosterone (T) on emotion in male rhesus m...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2010.08.010
更新日期:2010-11-01 00:00:00
abstract::The evolutionary processes that result in reliable links between male signals and fighting capacity have received a great deal of attention, but the proximate mechanisms underlying such connections remain understudied. We studied a large sample of male green anole lizards (Anolis carolinensis) to determine whether tes...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2007.05.014
更新日期:2007-09-01 00:00:00
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journal_title:Hormones and behavior
pub_type: 杂志文章,评审
doi:10.1016/j.yhbeh.2014.04.005
更新日期:2014-06-01 00:00:00
abstract::The copulatory and precopulatory behavioral repertoire expressed in terms of the intensity scale of sexual responsiveness was investigated in female rats ovariectomized on the 30th day after birth and treated for 9 weeks, once weekly, with estradiol dipropionate (5, 10, 15, 20, and 30 micrograms per animal) plus proge...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/0018-506x(86)90036-x
更新日期:1986-09-01 00:00:00
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journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/0018-506x(84)90042-4
更新日期:1984-06-01 00:00:00
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journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2014.12.010
更新日期:2015-03-01 00:00:00
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journal_title:Hormones and behavior
pub_type: 杂志文章,评审
doi:10.1016/j.yhbeh.2020.104867
更新日期:2020-11-01 00:00:00
abstract::Intact male rats were tested on two successive weekly tests with females to determine their level of sexual activity. Nuclear estrogen receptor content was measured in specific brain regions of individual sexually responsive and sexually nonresponsive males. Sexually nonresponsive male rats had significantly reduced n...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/0018-506x(85)90022-4
更新日期:1985-06-01 00:00:00
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journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1006/hbeh.1996.0059
更新日期:1996-12-01 00:00:00
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journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1006/hbeh.2001.1646
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abstract::Ovarian steroid hormones, estradiol and progesterone, regulate cellular functions in the central nervous system, resulting in the alterations in physiology and reproductive behavior. One means by which steroid hormones exert their neural effects on reproductive behavior is via their intracellular receptors functioning...
journal_title:Hormones and behavior
pub_type: 杂志文章,评审
doi:10.1006/hbeh.2001.1687
更新日期:2001-09-01 00:00:00
abstract::In previous studies, we showed for the first time that prenatal stress in rats produces long-term alterations of formalin-induced pain behavior that are dependent on age and sex, and we demonstrated an important role of the serotonergic system in mechanisms of prenatal stress (Butkevich, I.P. and Vershinina, E.A., 200...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2008.09.008
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journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2003.09.012
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journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2015.03.009
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journal_title:Hormones and behavior
pub_type: 杂志文章,meta分析,评审
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更新日期:2018-02-01 00:00:00
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journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2008.06.007
更新日期:2009-02-01 00:00:00
abstract::Short-term fluctuations in steroid hormones such as estradiol (E2) and progesterone (P) can affect the concentration of hippocampal dendritic spines in adult, cycling nulliparous female rats. Pregnancy is characterized by a significantly longer duration of substantially elevated E2 and P compared to the estrous cycle....
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2005.05.017
更新日期:2006-02-01 00:00:00
abstract::Humans and wildlife are exposed to numerous anthropogenic drugs and pollutants. Many of these compounds are hormonally active, and recent evidence suggests that the presence of these endocrine disruptors permanently alters normal development and physiology in a variety of vertebrate species. Here, we report on the eff...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2006.01.007
更新日期:2006-06-01 00:00:00
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journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2003.08.002
更新日期:2004-01-01 00:00:00
abstract::Blood samples were taken from free-living male and female mockingbirds to determine correlations between plasma steroids and breeding behavior. Plasma levels of testosterone (T), estradiol (E2), progesterone (P), and corticosterone (B) were assessed during pre-breeding courtship, while males built nests, while females...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1006/hbeh.1995.1002
更新日期:1995-03-01 00:00:00
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journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/0018-506x(86)90014-0
更新日期:1986-06-01 00:00:00
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journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2008.05.005
更新日期:2008-09-01 00:00:00
abstract::The intravenous injection of several corticosteroids in the spayed estrogen-primed rat resulted, 5 min later, in a remarkable induction of lordosis response for deoxycorticosterone and 11-deoxycortisol. A lower but important effect was induced with corticosterone and 17 alpha-hydroxyprogesterone. A chemical structure-...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/0018-506x(90)90033-t
更新日期:1990-12-01 00:00:00
abstract::In many bird species, males exhibit territorial aggression outside the breeding season, when testosterone concentrations are low and may not regulate territorial behaviors. The hormonal regulation of aggression at this time of year has only been studied in passerine birds. Here, we investigated the role of testosteron...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2004.11.021
更新日期:2005-05-01 00:00:00