Generally a journal subscription is necessary to download the papers using the links below. But, I’d be happy to provide a pdf version if you contact me directly (click here to request pdf).
Names of supervised undergraduate student, graduate student, and postdoctoral scholar co-authors are underlined.
Vernasco, B. J., Cornelius, J. M. & Watts, H E. 2024 Food and social cues modulate reproductive development but not migratory behavior in a nomadic songbird, the Pine Siskin. Ornithology 141: ukae006 https://doi.org/10.1093/ornithology/ukae006
Watts, H. E. & Cornelius, J. M. 2024. Toward understanding the endocrine regulation of diverse facultative migration strategies. Hormones and Behavior 158: 105465 https://doi.org/10.1016/j.yhbeh.2023.105465
Boersma, J., Enbody, E.D., Ketaloya, S., Watts, H. E., Karubian, J. & Schwabl, H. 2023. Does capacity to produce androgens underlie variation in female ornamentation and territoriality in White-shouldered Fairywren (Malurus alboscapulatus)? Hormones and Behavior 154: 105393 https://doi.org/10.1016/j.yhbeh.2023.105393
Robart, A. R. & Watts, H. E. 2023. Integration of social and temperature cues alters facultative migratory response to declining food availability. Animal Behaviour 198:153-164. https://doi.org/10.1016/j.anbehav.2023.01.019
Boersma J., Enbody E. D., Karubian, J., Watts, H. E. & Schwabl, H. 2022. Drought disrupts year-round breeding readiness in a tropical songbird. Avian Conservation and Ecology 17 (2): 44. https://doi.org/10.5751/ACE-2343-170244
Vernasco, B. J., Cornelius, J. M. & Watts, H E. 2022. Social information use in migratory decision-making depends upon conspecific state. Behavioral Ecology and Sociobiology 76: 130. https://doi.org/10.1007/s00265-022-03229-y
Vernasco, B. J. & Watts, H. E. 2022. Telomere length predicts timing and intensity of migratory behaviour in a nomadic songbird. Biology Letters 18: 20220176. https://doi.org/10.1098/rsbl.2022.0176
Robart, A. R., Zuñiga, H. X., Navarro, G. & Watts, H. E. 2022. Social environment influences termination of nomadic migration. Biology Letters 18: 20220006. https://doi.org/10.1098/rsbl.2022.0006
Chmura, H. E., Schultz, E. M., Brazeal, K. R., Watts, H. E., MacDougall-Shackleton, S. A., Hahn, T.P. & Cornelius, J. M., 2021. Annual Schedules. In: Sturkie’s Avian Physiology, 7th Edition (C. G. Scanes & S. Dridi, Eds). San Diego: Elsevier.
Bauer, C.M. & Watts, H.E. 2021. Corticosterone’s roles in avian migration: Assessment of three hypotheses. Hormones and Behavior 135: 105033. https://doi.org/10.1016/j.yhbeh.2021.105033
Aguiñaga, J., Gomulkiewicz, R. & Watts, H.E. 2021. Effect of social information on an individual’s assessment of its environment. Animal Behaviour 178: 267-277. https://doi.org/10.1016/j.anbehav.2021.06.009
Cornelius, J.M., Hahn, T.P., Robart, A.R., Vernasco, B.J., Zahor, J.L., Glynn, K.J., Corrie J. Navis, C.J. & Watts, H.E. 2021. Seasonal patterns of fat deposits in relation to migratory strategy in facultative migrants. Frontiers in Ecology and Evolution 9: 691808. https://doi.org/10.3389/fevo.2021.691808
Vernasco, B.J., Emmerson, M.G., Gilbert, E.R., Sewall, K.B. & Watts, H.E. 2021. Migratory state and patterns of steroid hormone regulation in the pectoralis muscle of a nomadic migrant, the pine siskin (Spinus pinus). General and Comparative Endocrinology 309: 113787. https://doi.org/10.1016/j.ygcen.2021.113787
Watts, H. E. 2020. Seasonal regulation of behaviour: What role do hormone receptors play? Proceedings B 287: 20200722. https://doi.org/10.1098/rspb.2020.0722
Hotaling, S., Wimberger, P.H., Kelley, J. L. & Watts, H.E. 2020. Macroinvertebrates on glaciers: a key resource for terrestrial food webs? Ecology 101: e02947. https://doi.org/10.1002/ecy.2947
Watts, H. E., Rittenhouse, J. L., Sewall, K. B., Bowers, J. M. 2019. Migratory state is not associated with differences in neural glucocorticoid or mineralocorticoid receptor expression in pine siskins. Animal Migration 6: 19–27. https://doi.org/10.1515/ami-2019-0001
Rittenhouse J. L., Robart, A. R. & Watts, H. E. 2019. Variation in chronotype is associated with migratory timing in a songbird. Biology Letters 15: 20190453. http://dx.doi.org/10.1098/rsbl.2019.0453
Robart, A. R., Morado, M. I., Watts, H. E. 2019. Declining food availability, corticosterone, and migratory response in a nomadic, irruptive migrant. Hormones and Behavior 110: 56-67. https://doi.org/10.1016/j.yhbeh.2019.02.007
Watts, H. E., Jimenez, D., Pacheco, V. & Vilgalys, T. P. 2019. Temperature-correlated shifts in the timing of egg laying in House Finches Haemorhous mexicanus. Ibis 161: 428–434. https://doi.org/10.1111/ibi.12676
Watts, H. E., Jimenez, D., Pacheco, V. & Vilgalys, T. P. 2018. Effects of temperature on the timing of breeding and molt transitions in house finches. Journal of Experimental Biology 221: jeb185058. https://doi.org/10.1242/jeb.185058
Robart, A.R., McGuire, M. & Watts, H.E. 2018. Increasing photoperiod stimulates the initiation of spring migratory behaviour and physiology in a facultative migrant, the pine siskin. Royal Society Open Science 5: 180876. http://dx.doi.org/10.1098/rsos.180876
Watts, H.E. 2018. Migration and Navigation in Birds. In M. K. Skinner (Ed.), Encyclopedia of Reproduction. vol. 6, pp. 90–94. Academic Press: Elsevier. http://dx.doi.org/10.1016/B978-0-12-809633-8.20641-9
Watts, H.E., Cornelius, J.M., Fudickar, A.M., Pérez, J. & Ramenofsky, M. 2018. Understanding variation in migratory movements: A mechanistic approach. General and Comparative Endocrinology 256: 112-122. https://doi.org/10.1016/j.ygcen.2017.07.027
Squire, M. E., Veglia, M. K., Drucker, K. A., Brazeal, K., Hahn, T. P. & Watts, H. E. 2017. Estrogen levels influence medullary bone quantity and density in female house finches and pine siskins. General and Comparative Endocrinology 246: 249-257. http://dx.doi.org/10.1016/j.ygcen.2016.12.015
Watts, H. E., Robart, A. R., Chopra, J. K., Asinas, C. E., Hahn, T. P., Ramenofsky, M. R. 2017. Seasonal expression of migratory behavior in a facultative migrant, the pine siskin. Behavioral Ecology and Sociobiology 71: 9. http://dx.doi.org/10.1007/s00265-016-2248-2
Watts, H. E., Edley, B. & Hahn, T. P. 2016. A potential mate influences reproductive development in female, but not male, pine siskins. Hormones and Behavior. 80: 39-46. http://dx.doi.org/10.1016/j.yhbeh.2016.01.006
Watts, H. E., MacDougall-Shackleton, S. A., & Hahn, T. P. 2015. Variation among individuals in photoperiod responses: Effects of breeding schedule, photoperiod, and age-related photoperiodic experience in birds. Journal of Experimental Zoology Part A: Ecological Genetics and Physiology. 323: 368-374. http://dx.doi.org/10.1002/jez.1929
MacDougall-Shackleton, S. A., Watts, H. E. & Hahn, T. P. 2015. Biological Timekeeping: Individual Variation, Performance, and Fitness. In: Integrative Organismal Biology (L. B. Martin, C. Ghalambor & H. A. Woods, Eds.). John Wiley & Sons, Inc.
Hahn, T.P., Brazeal, K. R., Schultz, E. M., Chmura, H. E., Cornelius, J. M., Watts, H. E. & MacDougall-Shackleton, S. A. 2014. Annual Schedules. In: Sturkie’s Avian Physiology, 6th Edition (C. G. Scanes, Ed). New York: Elsevier.
Cornelius, J.M., Watts, H.E., Dingle, H. & Hahn, T.P. 2013. Obligate versus rich patch opportunism: Evolution and endocrine mechanisms. General and Comparative Endocrinology 190: 76-80. http://www.sciencedirect.com/science/article/pii/S0016648013001676
Watts, H.E., & Hahn, T.P. 2012. Non-photoperiodic regulation of reproductive physiology in the flexibly breeding pine siskin (Spinus pinus). General and Comparative Endocrinology 178: 259-264. http://dx.doi.org/10.1016/j.ygcen.2012.04.023
Holekamp, K., Smith, J., Strelioff, C., Van Horn, R. & Watts, H. 2012. Society, demography and genetic structure in the spotted hyena. Molecular Ecology 21: 613-632. http://dx.doi.org/10.1111/j.1365-294X.2011.05240.x
Watts, H. E., Scribner, K. T., Garcia, H. & Holekamp, K. E. 2011. Genetic diversity and structure in two spotted hyena populations reflects social organization and male dispersal. Journal of Zoology 285: 281-291. http://dx.doi.org/10.1111/j.1469-7998.2011.00842.x
Watts, H. E., Blankenship, L. M., Dawes, S. E. & Holekamp, K.E. 2010. Responses of spotted hyenas to lions reflect individual differences in behavior. Ethology 116: 1199-1209. http://dx.doi.org/10.1111/j.1439-0310.2010.01833.x
MacDougall-Shackleton, S. A., Stevenson, T. J., Watts, H. E., Pereyra, M., Hahn, T. P. 2009. The evolution of photoperiodic response systems and seasonal GnRH plasticity in birds. Integrative and Comparative Biology 49: 580-589. link
Hahn, T. P., Watts, H. E., Cornelius, J. M. Brazeal, K. R. & MacDougall-Shackleton, S. A. 2009. Evolution of environmental cue response mechanisms: Adaptive variation in photorefractoriness. General and Comparative Endocrinology 163: 193-200. link
Watts, H. E., Tanner, J. B., Lundrigan, B. L. & Holekamp, K. E. 2009. Post-weaning maternal effects and the evolution of female dominance in the spotted hyena. Proceedings of the Royal Society B 276:2291-2298. link Faculty of 1000 ‘Must Read’
Watts, H. E. & Holekamp, K. E. 2009. Ecological determinants of survival and reproduction in the spotted hyena. Journal of Mammalogy 90: 461-471. link
Van Meter, P. E., French, J. A.., Dloniak, S. M., Watts, H. E. & Holekamp, K. E. 2009. Fecal glucocorticoids reflect socio-ecological and anthropogenic stressors in the lives of wild spotted hyenas. Hormones and Behavior 55: 329-337. link
Watts, H. E. & Holekamp, K. E. 2008. Interspecific competition influences reproduction in spotted hyenas. Journal of Zoology 276: 402-410. link
Van Horn, R. V., Watts, H. E. & Holekamp, K. E. 2008. Do female hyaenas choose mates based on tenure? Nature 454 doi:10.1038/nature07122. link
Watts, H. E. & Holekamp, K. E. 2007. Hyena societies. Current Biology 17: R657-R660. link
Boydston, E. E., Kapheim, K. M., Watts, H. E., Szykman, M. & Holekamp, K. E. 2003. Altered behavior in a large African carnivore associated with increased human activity. Animal Conservation 6: 207-219. link
Alberts S. C., Watts, H. E. & Altmann, J. 2003. Queuing and queue jumping: Long-term patterns of dominance rank and mating success in male savannah baboons. Animal Behaviour 65: 821-840. link