Research Topics
| M HauSummaryAffiliation: Princeton University Country: USA Publications
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Detail Information
Publications
Timing of breeding in variable environments: tropical birds as model systemsM Hau
Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey 08544, USA
Horm Behav 40:281-90. 2001....
Regulation of male traits by testosterone: implications for the evolution of vertebrate life historiesMichaela Hau
Ecology and Evolutionary Biology, Guyot Hall, Princeton University, Princeton, NJ 08544, USA
Bioessays 29:133-44. 2007..I will review recent case studies supporting the evolutionary potential hypothesis and suggest micro-evolutionary experiments to unravel the mechanistic basis of life-history evolution...
Testosterone reduces responsiveness to nociceptive stimuli in a wild birdMichaela Hau
Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
Horm Behav 46:165-70. 2004..Decreased nociception during aggressive encounters may promote the immediate and future willingness of males to engage in high-intensity fights...
Territorial aggression and hormones during the non-breeding season in a tropical birdMichaela Hau
Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
Horm Behav 45:40-9. 2004..We conclude that male and female spotted antbirds can produce DHEA during the non-breeding season and DHEA may serve as a precursor of sex steroids for the regulation of year-round territorial behavior in both sexes...
Effect of polar day on plasma profiles of melatonin, testosterone, and estradiol in high-Arctic Lapland LongspursMichaela Hau
Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey 08544, USA
Gen Comp Endocrinol 126:101-12. 2002..The data suggest that even under polar day conditions diel rhythms can persist. The maintenance of hormone rhythms could provide a physiological basis to reports of rhythmic behavior in many birds during the Arctic summer...
Endocrine correlates of alternative phenotypes in the white-throated sparrow (Zonotrichia albicollis)L H Spinney
Department of Ecology and Evolutionary Biology, Princeton University, Guyot Hall 303, Princeton, NJ 08544, USA
Horm Behav 50:762-71. 2006..Alternative testable hypotheses include hormonal effects during early development and direct genetic effects...
Low sex steroids, high steroid receptors: Increasing the sensitivity of the nonreproductive brainVirginie Canoine
Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey 08544, USA
Dev Neurobiol 67:57-67. 2007..This unusual seasonal receptor regulation may represent a means for the year-round regulation of vertebrate aggressive behavior via steroids by increasing the brain's sensitivity to sex steroids during the nonbreeding season...
Males of a single-brooded tropical bird species do not show increases in testosterone during social challengesSharon A Gill
Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
Horm Behav 54:115-24. 2008....
Context matters: female aggression and testosterone in a year-round territorial neotropical songbird (Thryothorus leucotis)Sharon A Gill
Department of Ecology and Evolutionary Biology, Princeton University, Guyot Hall, Princeton, NJ 08544, USA
Proc Biol Sci 274:2187-94. 2007..Context-dependent elevation of testosterone implies that selection acts directly on female vertebrates to shape patterns of testosterone secretion...
Avian circannual clocks: adaptive significance and possible involvement of energy turnover in their proximate controlMartin Wikelski
Department of Ecology and Evolutionary Biology, Guyot Hall 303, Princeton University, Princeton, NJ 08544, USA
Philos Trans R Soc Lond B Biol Sci 363:411-23. 2008..We propose a novel energy turnover hypothesis which predicts a dependence of the speed of the circannual clock on the overall energy expenditure of an organism...
Population differences in fever and sickness behaviors in a wild passerine: a role for cytokinesJames S Adelman
Princeton University, Department of Ecology and Evolutionary Biology, 106A Guyot Hall, Princeton, NJ 08540, USA
J Exp Biol 213:4099-109. 2010..Additionally, they suggest that cytokines play a role in shaping immunological variation among wild vertebrates...
Tonic activation of brain GnRH immunoreactivity despite reduction of peripheral reproductive parameters in opportunistically breeding zebra finchesNicole Perfito
Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544 1003, USA
Brain Behav Evol 67:123-34. 2006..GnRH-ir cells in the hypothalamus appear to remain active and able to respond to subsequent stimulation...
Reproductive state, but not testosterone, reduces immune function in male house sparrows (Passer domesticus)Chris G Greenman
Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, 08544, USA
Physiol Biochem Zool 78:60-8. 2005..However, even though T is often cited as a strong immunosuppressant, it is not fully responsible for this seasonal modulation...
Tropical field endocrinology: ecology and evolution of testosterone concentrations in male birdsMichaela Hau
Princeton University, Princeton, NJ 08540, USA
Gen Comp Endocrinol 157:241-8. 2008..Such findings should be supplemented by studies on functional aspects of the testosterone signal at the organismal and cellular level...
Cutaneous immune activity varies with physiological state in female house sparrows (Passer domesticus)L B Martin
Department of Ecology and Evolutionary Biology, Princeton University, NJ 08540, USA
Physiol Biochem Zool 79:775-83. 2006..Altogether, our results indicate that immune activity in female house sparrows can be influenced by both instantaneous and delayed trade-offs...
Use of ethanol for preserving steroid and indoleamine hormones in bird plasmaWolfgang Goymann
Max Planck Institute for Ornithology, Department of Biological Rhythms and Behaviour, Von der Tann Str 7, D 82346 Andechs, Germany
Gen Comp Endocrinol 150:191-5. 2007..However, differences among ethanol-treated samples in general were small, demonstrating the feasibility of this preservation method in the field at remote locations...
Diel changes in plasma melatonin and corticosterone concentrations in tropical Nazca boobies (Sula granti) in relation to moon phase and ageElisa M Tarlow
Department of Animal Biology, 505 S. Goodwin Ave, University of Illinois at Urbana-Champaign, IL 61820, USA
Gen Comp Endocrinol 133:297-304. 2003..First, melatonin rhythms can be directly affected by the light intensity associated with full moon. Second, prey availability may change foraging patterns and can therefore indirectly alter corticosterone secretion in Nazca boobies...
Cue hierarchies and testicular development: is food a more potent stimulus than day length in an opportunistic breeder (Taeniopygia g. guttata)?Nicole Perfito
Department of Integrative Biology and Helen Wills Neuroscience Institute, University of California, Berkeley, CA, USA
Horm Behav 53:567-72. 2008..These data lend support to the proposition that photoperiod acts as a supplementary cue or permissive factor in this system, and thus represents the possibility of a reversal in the hierarchy of cue sensitivity...
Dehydroepiandrosterone metabolism by 3beta-hydroxysteroid dehydrogenase/Delta5-Delta4 isomerase in adult zebra finch brain: sex difference and rapid effect of stressKiran K Soma
Department of Physiological Science, Laboratory of Neuroendocrinology of the Brain Research Institute, University of California, Los Angeles 90095 1527, USA
Endocrinology 145:1668-77. 2004..Songbirds are good animal models for studying the regulation and functions of DHEA and neurosteroids in the nervous system...
Stress, metabolism, and antioxidants in two wild passerine bird speciesAlan A Cohen
Department of Biology, University of Missouri St Louis, St Louis, Missouri 63121, USA
Physiol Biochem Zool 81:463-72. 2008..Thus, high uric acid may reflect recent stress, poor condition, or a compensatory response. Relationships among metabolic rate, antioxidants, and corticosterone differed qualitatively between the species...
Sexual signal exaggeration affects physiological state in male barn swallowsRebecca J Safran
Curr Biol 18:R461-2. 2008
Environmental regulation of annual schedules in opportunistically-breeding songbirds: adaptive specializations or variations on a theme of white-crowned sparrow?Thomas P Hahn
Section of Neurobiology, Physiology and Behavior, Animal Behavior Graduate Group, University of California, Davis, CA 95616, USA
Gen Comp Endocrinol 157:217-26. 2008....
Quantifying and comparing constitutive immunity across avian speciesSam Millet
Department of Animal Science, University of California, Davis, CA 95616, USA
Dev Comp Immunol 31:188-201. 2007..All assays could be done on as little as 10 microL of blood or plasma and should be useful in field studies of comparative immunity...
