Publications of Wolfgang Goymann
All genres
Journal Article (161)
2012
Journal Article
Validation of an enzyme immunoassay for the measurement of faecal glucocorticoid metabolites in spotted hyenas (Crocuta crocuta). General and Comparative Endocrinology 178 (2), pp. 265 - 271 (2012)
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Independence among physiological traits suggests flexibility in the face of ecological demands on phenotypes. Journal of Evolutionary Biology 25 (8), pp. 1600 - 1613 (2012)
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On the use of non-invasive hormone research in uncontrolled, natural environments: The problem with sex, diet, metabolic rate and the individual. Methods in Ecology and Evolution 3 (4), pp. 757 - 765 (2012)
Journal Article
A tropical bird can use the equatorial change in sunrise and sunset times to synchronize its circannual clock. Proceedings of the Royal Society B: Biological Sciences 279 (1742), pp. 3527 - 3534 (2012)
2011
Journal Article
Ignoring the challenge? Male black redstarts (Phoenicurus ochruros) do not increase testosterone levels during territorial conflicts but they do so in response to gonadotropin-releasing hormone. Proceedings of the Royal Society B: Biological Sciences 278 (1722), pp. 3233 - 3242 (2011)
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Simulating winning in the wild - The behavioral and hormonal response of black redstarts to single and repeated territorial challenges of high and low intensity. Hormones and Behavior 60 (5), pp. 565 - 571 (2011)
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Hormonal correlates of social status and courtship display in the cooperatively lekking lance-tailed manakin. Hormones and Behavior 59 (1), pp. 44 - 50 (2011)
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Experimentally elevated testosterone levels enhance courtship behaviour and territoriality but depress acquired immune response in Red bishops Euplectes orix. Ibis 153 (1), pp. 46 - 58 (2011)
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Food availability but not melatonin affects nocturnal restlessness in a wild migrating passerine. Hormones and Behavior 59 (1), pp. 187 - 192 (2011)
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Testosterone and year-round territoriality in tropical and non-tropical songbirds. Journal of Avian Biology 42 (6), pp. 485 - 489 (2011)
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Seasonal and diel variation of hormone metabolites in European stonechats: On the importance of high signal-to-noise ratios in noninvasive hormone studies. Journal of Biological Rhythms 26 (1), pp. 44 - 54 (2011)
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Rearing conditions have long-term consequences for stress responsiveness in free-living great tits. General and Comparative Endocrinology 174 (2), pp. 219 - 224 (2011)
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Throat patch size and darkness covaries with testosterone in females of a sex-role reversed species. Behavioral Ecology 22 (6), pp. 1312 - 1319 (2011)
2010
Journal Article
Threat signaling in female song-evidence from playbacks in a sex-role reversed bird species. Behavioral Ecology 21 (6), pp. 1147 - 1155 (2010)
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Body fat influences departure from stopover sites in migratory birds: Evidence from whole-island telemetry. Biology Letters 6 (4), pp. 478 - 481 (2010)
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Stressful dieting: Nutritional conditions but not compensatory growth elevate corticosterone levels in Zebra finch nestlings and fledglings. PLoS One 5 (9), e12930 (2010)
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Impact of season and social challenge on testosterone and corticosterone levels in a year-round territorial bird. Hormones and Behavior 58 (2), pp. 317 - 325 (2010)
Journal Article
European robins (Erithacus rubecula) lack an increase in testosterone during simulated territorial intrusions. Journal of Ornithology 151 (3), pp. 607 - 614 (2010)
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Hormonal mechanisms of cooperative behaviour. Philosophical Transactions of the Royal Society of London, Series B: Biological Sciences 365 (1553), pp. 2737 - 2750 (2010)
2009
Journal Article
A single functional testis and long deferent duct papillae: The peculiar male reproductive tract of the classically polyandrous, sex-role reversed Black coucal (Centropus grillii). Journal of Ornithology 150 (4), pp. 827 - 838 (2009)
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Stopover decision during migration: Physiological conditions predict nocturnal restlessness in wild passerines. Biology Letters 5 (3), pp. 302 - 305 (2009)
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Females alter their song when challenged in a sex-role reversed bird species. Behavioral Ecology and Sociobiology 64 (2), pp. 193 - 204 (2009)
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Social modulation of androgens in male birds. General and Comparative Endocrinology 163 (1-2), pp. 149 - 157 (2009)
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Paternity in the classical polyandrous black coucal (Centropus grillii) - A cuckoo accepting cuckoldry? Behavioral Ecology 20 (6), pp. 1185 - 1193 (2009)
2008
Journal Article
Constitutive immune function responds more slowly to handling stress than corticosterone in a shorebird. Physiological and Biochemical Zoology 81 (5), pp. 673 - 681 (2008)
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A gentler method to raise melatonin levels in birds. Journal of Biological Rhythms 23 (3), pp. 274 - 277 (2008)
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Progesterone modulates aggression in sex-role reversed female African black coucals. Proceedings of the Royal Society B: Biological Sciences 275 (1638), pp. 1053 - 1060 (2008)
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Tropical field endocrinology: Ecology and evolution of testosterone concentrations in male birds. General and Comparative Endocrinology 157 (3), pp. 241 - 248 (2008)
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The decoy matters! Hormonal and behavioural differences in the reaction of territorial European robins towards stuffed and live decoys. General and Comparative Endocrinology 155 (3), pp. 511 - 516 (2008)
2007
Journal Article
Distinguishing seasonal androgen responses from male-male androgen responsiveness - Revisiting the Challenge Hypothesis. Hormones and Behavior 51 (4), pp. 463 - 476 (2007)
Journal Article
Use of ethanol for preserving steroid and indoleamine hormones in bird plasma. General and Comparative Endocrinology 150 (2), pp. 191 - 195 (2007)
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Hormonal responses to male-male social challenge in the blue tit Cyanistes caeruleus: Single-broodedness as an explanatory variable. Physiological and Biochemical Zoology 80 (2), pp. 228 - 240 (2007)
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Sex-role reversal is reflected in the brain of African black coucals (Centropus grillii). Developmental Neurobiology 67 (12), pp. 1560 - 1573 (2007)
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Green matters! Growing vegetation stimulates breeding under short-day conditions in wild canaries (Serinus canaria). Journal of Biological Rhythms 22 (6), pp. 554 - 557 (2007)
2006
Journal Article
Testosterone and corticosterone during the breeding cycle of equatorial and European stonechats (Saxicola torquata axillaris and S. t. rubicola). Hormones and Behavior 50 (5), pp. 779 - 785 (2006)
Journal Article
Low ambient temperature increases food intake and dropping production, leading to incorrect estimates of hormone metabolite concentrations in European stonechats. Hormones and Behavior 49 (5), pp. 644 - 653 (2006)
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Age-dependent association between testosterone and crown UV coloration in male blue tits (Parus caeruleus). Behavioral Ecology and Sociobiology 59 (5), pp. 666 - 673 (2006)
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Plasma steroid hormones in two Arctic-breeding shorebirds: Monogamy versus polygyny. General and Comparative Endocrinology 147 (2), pp. 133 - 140 (2006)
2005
Journal Article
Two workshops in ornithology: A general introduction: Dedication to Eberhard Gwinner. Annals of the New York Academy of Sciences 1046, pp. IX - X (2005)
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Difficulties and special issues associated with field research in behavioral neuroendocrinology. Hormones and Behavior 48 (4), pp. 484 - 491 (2005)
Journal Article
Noninvasive monitoring of hormones in bird Droppings: Physiological validation, sampling, extraction, sex differences, and the influence of diet on hormone metabolite levels. Annals of the New York Academy of Sciences 1046, pp. 35 - 53 (2005)
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Introduction to the European Science Foundation technical meeting: Analysis of hormones in droppings and egg yolk of birds. Annals of the New York Academy of Sciences 1046, pp. 1 - 4 (2005)
Journal Article
Breeding biology, sexually dimorphic development and nestling testosterone concentrations of the classically polyandrous African black coucal, Centropus grillii. Journal of Ornithology 146 (4), pp. 314 - 324 (2005)
2004
Journal Article
Testosterone in tropical birds: Effects of environmental and social factors. American Naturalist 164 (3), pp. 327 - 334 (2004)
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Competing females and caring males. Sex steroids in African black coucals, Centropus grillii. Animal Behaviour 68 (4), pp. 733 - 740 (2004)
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Allostatic load, social status and stress hormones: The costs of social status matter. Animal Behaviour 67 (3), pp. 591 - 602 (2004)
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Competing females and caring males. Polyandry and sex-role reversal in African black coucals, Centropus grillii. Ethology 110 (10), pp. 807 - 823 (2004)
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Excremental androgen metabolite concentrations and gonad sizes in temperate zone vs. tropical Stonechats (Saxicola torquata ssp.). General and Comparative Endocrinology 139 (2), pp. 124 - 130 (2004)
2003
Journal Article
Wetteifernde Weibchen und fürsorgliche Männchen - Geschlechterrollentausch beim Afrikanischen Grillkuckuck. Jahrbuch - Max-Planck-Gesellschaft, pp. 513 - 518 (2003)
Journal Article
Defense of females, but not social status, predicts plasma androgen levels in male spotted hyenas. Physiological and Biochemical Zoology 76 (4), pp. 586 - 593 (2003)