Stress and the evolution of condition-dependent signals

Buchanan, Katherine L.

doi:10.1016/s0169-5347(99)01812-1

Cited by 261 publications

(209 citation statements)

References 34 publications

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“…However, red is related to the possession of specific MHC genotypes, providing some support for the hypothesis that red colour advertises 'good genes' in mandrills, if these genotypes are beneficial in terms of health. Finally, although male mandrills with higher glucocorticoid levels suffered a higher diversity of parasite infection, we found no significant relationship between glucocorticoids and red colour, suggesting that glucocorticoids do not play a simple role in translating physical health into colour (Setchell, Smith, et al, 2010) and providing little support for the stress-mediated hypothesis for the evolution of sexual signals in this species (Buchanan, 2000;Evans et al, 2000;Poiani et al, 2000).…”

Section: Mandrillsmentioning

confidence: 59%

“…Other hypotheses require the production of colour to involve physiological costs, such that colour signals health or condition. For example, colour may reflect dietary access to pigments (Hill, 2006), the bearer's ability to overcome a handicap (Zahavi, 1975), resist pathogens (Hamilton & Zuk, 1982), cope with the immunosuppressive effects of testosterone (Folstad & Karter, 1992) or the costs of oxidative stress (von Schantz, Bensch, Grahn, Hasselquist, & Wittzell, 1999); or the ability to withstand stressors (Buchanan, 2000;Hillgarth & Wingfield, 1997;Westneat & Birkhead, 1998). At a genetic level, colour may signal overall genetic diversity and fitness (Brown, 1997), or genetic quality related to particular coding loci, such as the major histocompatibility complex (MHC), a multigene family that plays a critical role in the immune response (Penn & Potts, 1998).…”

Section: Colour As a Signal Of Competitive Abilitymentioning

confidence: 99%

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Color in competition contexts in non-human animals

Setchell¹

2015

Handbook of Color Psychology

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Section: Mandrillsmentioning

confidence: 59%

Section: Colour As a Signal Of Competitive Abilitymentioning

confidence: 99%

Color in competition contexts in non-human animals

Setchell¹

2015

Handbook of Color Psychology

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“…The H/L ratios are known to be sensitive to increased plasma corticosterone, which mediates nutritional stress (Morici et al 1997;Post et al 2003) and is known to promote severe protein loss, disrupt secondary messenger systems and suppress growth and metamorphosis when chronically elevated (Wingfield et al 1997). Recent studies have also revealed effects of corticosterone-mediated nutritional stress on neuronal cell development and function in growing chicks (Buchanan 2000;Buchanan et al 2003), all of which may decrease the nestling and post-fledging survival.…”

Section: Discussionmentioning

confidence: 99%

Effects of forest patch size on physiological stress and immunocompetence in an area-sensitive passerine, the Eurasian treecreeper (Certhia familiaris): an experiment

Suorsa

Helle

Koivunen

et al. 2004

Proc. R. Soc. Lond. B

109

104

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We manipulated the primary brood size of Eurasian treecreepers (Certhia familiaris) breeding in different sized forest patches (0.5-12.8 ha) in moderately fragmented landscapes. We examined the effects of brood size manipulation (reduced, control, enlarged) and forest patch size on physiological stress (heterophillymphocyte ratios; H/L), body condition and cell-mediated immunocompetence (phytohaemagglutinin test). Nestlings' H/L ratios were negatively related to forest patch area in control and enlarged broods, whereas no effects were found in reduced broods. The effects of forest patch area were strongest in enlarged broods, which had, in general, twofold higher H/L ratios than control and reduced broods. The elevated H/L ratios were positively related to nestling mortality and negatively correlated with bodycondition indices suggesting that the origin of stress in nestlings was mainly nutritional. Cell-mediated immunity of nestlings was not related to brood manipulation or to forest patch size. Also, the H/L ratios of adults were not related to brood manipulation or forest patch size. In addition, parental H/L ratios and body condition were not related to nestling H/L ratios. Our results suggest that during the breeding period the deleterious effects of habitat loss are seen explicitly in growing young.

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“…Morton and Sherman, 1978;Kotrschal et al, 1998;Lima, 1998;Cavigelli, 1999;Hubbs et al, 2000;Creel, 2001;Goymann et al, 2001;Abbott et al, 2003;Sands and Creel, 2004). Both types of stress can directly influence survival and reproduction (reviewed in Buchanan, 2000;Wingfield, 2004; see also Jennings et al, 2004;Boonstra, 2005;Spencer et al, 2005), yet surprisingly very little is known about the activity of glucocorticoids and the HPA axis in early development.…”

Section: Introductionmentioning

confidence: 99%

Developmental and geographic variation in stress hormones in wild Belding's ground squirrels (Spermophilus beldingi)

Mateo

2006

Hormones and Behavior

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Extensive research has been conducted on the role of glucocorticoids in regulating growth, mobilizing energy, responding to stressors and modulating learning and memory. However, little is known about the production of corticoids during early development in free-living animals, particularly during sensitive periods of acquisition of important behaviors. In a four-year study of Belding's ground squirrels, Spermophilus beldingi, a non-invasive assay of glucocorticoids was used to quantify age and population differences among juveniles from three California locations. Fecal-cortisol metabolites are elevated during a short period when juveniles first emerge aboveground from their natal burrows at about 4 weeks of age. This period of cortisol elevation coincides with when young are learning survival behaviors such as anti-predator responses and foraging strategies. Population differences in juvenile cortisol levels, which may reflect local variation in habitat quality and predator environments, were not evident until 2 weeks after emergence. Elevated cortisol at the age of emergence was also observed in juveniles born and reared in captivity without exposure to typical stressors that occur around the age of emergence. These results indicate that corticoids are regulated during early development, and the possible functions of age-related corticoid levels are discussed, including mobilization of glucose for natal emergence and later facilitation of growth and energy storage during the short summer before hibernation. In some species, elevated corticoids can also facilitate learning and memory, and current work is exploring whether the higher cortisol observed in all three S. beldingi populations just after emergence function to promote rapid acquisition of survival behaviors.

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Stress and the evolution of condition-dependent signals

Cited by 261 publications

References 34 publications

Color in competition contexts in non-human animals

Color in competition contexts in non-human animals

Effects of forest patch size on physiological stress and immunocompetence in an area-sensitive passerine, the Eurasian treecreeper (Certhia familiaris): an experiment

Developmental and geographic variation in stress hormones in wild Belding's ground squirrels (Spermophilus beldingi)

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