Behavioral and Hormonal Basis of Polygynous Breeding in Male Bush Warblers (Cettia diphone)

Wada, Mitsuru; Shimizu, Takashi; Kobayashi, Sayaka; Yatani, Atsushi; Sandaiji, Yuko; Ishikawa, Takayuki; Takemure, Etsuko

doi:10.1006/gcen.1999.7381

Cited by 26 publications

(22 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The challenge hypothesis ) also offers a conceptual framework for attempts to explain the plasticity and the predictability of male androgen responses with parameters of the social environment, such as breeding dispersal, group living, social status (Beletsky et al, 1992;Wada et al, 1999), alternative life histories (Moore, 1991;Ketterson and Nolan, 1992;Oliveira et al, 2001b), and the predictability of the physical environment (Wingfield et al, 1993(Wingfield et al, , 2000. Because species living at high group densities may be adapted to cope with higher frequencies of malemale interactions, the challenge hypothesis would predict higher basal androgen levels throughout the breeding phases and hence, smaller androgen increases in response to an additional social challenge as compared with solitary males (Beletsky et al, 1992;Pankhurst and Barnett, 1993;Wada et al, 1999;Wingfield et al, 1999a).…”

Section: Discussionmentioning

confidence: 99%

“…Because species living at high group densities may be adapted to cope with higher frequencies of malemale interactions, the challenge hypothesis would predict higher basal androgen levels throughout the breeding phases and hence, smaller androgen increases in response to an additional social challenge as compared with solitary males (Beletsky et al, 1992;Pankhurst and Barnett, 1993;Wada et al, 1999;Wingfield et al, 1999a). Among the species included in the present study there was no effect either of the breeding dispersal (i.e., species with dispersed or aggregated nesting; Westneat and Sherman, 1997;Searcy et al, 1999) or of group living outside of the breeding season (i.e., species with solitary males or species with multimale groups; Moller and Birkhead, 1993) on the flexibility of AR to social challenges.…”

Section: Discussionmentioning

confidence: 99%

“…In contrast, males with a high degree of polygyny and low or no paternal care are predicted to have high androgen levels throughout all breeding phases and thus, to exhibit only small further increases in response to social challenges (Beletsky et al, 1989). These predictions have been confirmed by a number of correlational studies in free-living bird populations (Rissman and Wingfield, 1984;Wingfield, 1984a;Wada et al, 1999;Wikelski et al, 1999;Wingfield et al, 2000). Moreover, exogenous administration of testosterone was shown to inhibit the transition from mating to paternal behavior, and to promote polygynous mating strategies in monogamous biparental populations of various passerine species (Silverin, 1980;Wingfield, 1984b;Hegner and Wingfield, 1987;Dittami et al, 1991;Ketterson and Nolan, 1992;De Ridder et al, 2000).…”

mentioning

confidence: 88%

See 2 more Smart Citations

Comparative analysis of male androgen responsiveness to social environment in birds: the effects of mating system and paternal incubation

Hirschenhauser¹,

Winkler²,

Oliveira³

2003

Hormones and Behavior

138

View full text Add to dashboard Cite

Male androgen responses to social challenges have been predicted to vary with mating system, male-male aggressiveness, and the degree of paternal investment in birds ("challenge hypothesis," Am. Nat. 136 (1990), 829). This study focused on the interspecific predictions of the challenge hypothesis. Comparative methods were used to control for effects of the phylogenetic relatedness among the sampled species. Male androgen data of 84 bird species were collected from literature records on seasonal androgen patterns. From these, the androgen responsiveness (AR) was calculated as described in the original challenge hypothesis (i.e., maximum physiological level/breeding baseline). Scatterplots of AR versus mating strategy, male-male aggressiveness, and the degree of paternal care confirmed the expected interspecific patterns. When phylogenetic analyses were performed among all of the sampled species, the effects of paternal investment disappeared while the AR remained covarying to a high degree with mating system and male-male aggressiveness. Although these mechanisms may be different at the intraspecific level, this suggests that interspecific differences of AR in male birds may have evolved in response to changes of mating strategies, rather than in response to altered paternal duties. However, control for phylogeny among the subsample of 32 passerine species revealed that if any paternal investment contributed to the observed variance in AR, then the change from "no male incubation" to "male shares incubation duties" represented the most effective, whereas the male's contribution to feeding offspring did not explain the observed variation of AR.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 88%

See 1 more Smart Citation

Comparative analysis of male androgen responsiveness to social environment in birds: the effects of mating system and paternal incubation

Hirschenhauser¹,

Winkler²,

Oliveira³

2003

Hormones and Behavior

138

View full text Add to dashboard Cite

show abstract

“…Sex hormones are often quantified in conjunction with corticosterone (e.g. Wingfield et al, 1982;Klukowski et al, 1997;Knapp and Moore, 1997;McQueen et al, 1999;Wada et al, 1999;Sorato and Kotrschal, 2006;Kralj-Fišer et al, 2007;Roberts et al, 2007) to investigate interactions between corticosterone and sex hormones across a breeding season. Differences across the sexes within each measure were also investigated; however, this was done in the context of comparing the consistency of the results generated by the different sample types, 6 rather than attempting to elucidate the specific hormonal profiles of each sex.…”

Section: Introductionmentioning

confidence: 99%

Comparing plasma and faecal measures of steroid hormones in Adelie penguins Pygoscelis adeliae

et al. 2009

View full text Add to dashboard Cite

Abstract. Physiological measurements of both stress and sex hormones are often used to estimate the consequences of natural or human-induced change in ecological studies of various animals. Different methods of hormone measurement exist, potentially explaining variation in results across studies; methods should be cross-validated to ensure they correlate.We directly compared faecal and plasma hormone measurements for the first time in a wild free-living species, the Adelie penguin (Pygoscelis adeliae). Blood and faecal samples were simultaneously collected from individual penguins for comparison, and assayed for testosterone and corticosterone (or their metabolites). Sex differences and variability within each measure, and correlation of values across measures were compared. For both hormones, plasma samples showed greater variation than faecal samples. Males had higher mean corticosterone concentrations than females, but the difference was only statistically significant in faecal samples. Plasma testosterone, but not faecal testosterone, was significantly higher in males than females. Correlation between sample types was poor overall, and weaker in females than in males, perhaps because measures from plasma represent hormones that are both free and bound to globulins, whereas measures from faeces represent only the free portion. Faecal samples also represent a cumulative measure of hormones over time, as opposed to a plasma 'snapshot' concentration. Our data indicate that faecal sampling appears more suitable for assessing baseline hormone concentrations, while plasma sampling may best define immediate responses to environmental events. Consequently, future studies should ensure they select the most appropriate matrix and method of hormone measurement to answer their research questions.

show abstract

“…Since the female alone incubates and takes on most of the care of the chicks (Bibby 1982), they may have a greater need than the males to accumulate fat, as these activities must increase their energetic costs. The weight increase in males may result from hormonal changes, as established in the related Japanese Bush Warbler Cettia diphone, where increased levels of testosterone and corticosterone during the breeding season are associated with a polygynous breeding strategy (Wada et al 1999). Thus, although the weight of both sexes increases during the breeding season, it may do so for different reasons in males than in females.…”

Section: Short Reportmentioning

confidence: 93%

Biometrics and seasonal changes in weight and fat deposition of Cetti's Warblers Cettia cetti in Central Greece

Alivizatos

Papadaki

Shogolev³

et al. 2011

Ringing & Migration

View full text Add to dashboard Cite

Behavioral and Hormonal Basis of Polygynous Breeding in Male Bush Warblers (Cettia diphone)

Cited by 26 publications

References 26 publications

Comparative analysis of male androgen responsiveness to social environment in birds: the effects of mating system and paternal incubation

Comparative analysis of male androgen responsiveness to social environment in birds: the effects of mating system and paternal incubation

Comparing plasma and faecal measures of steroid hormones in Adelie penguins Pygoscelis adeliae

Biometrics and seasonal changes in weight and fat deposition of Cetti's Warblers Cettia cetti in Central Greece

Contact Info

Product

Resources

About