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Watts Lab Publications

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


Hotaling, S., Wimberger, P.H., Kelley, J. L. & Watts, H.E. In press. Macroinvertebrates on glaciers: a key resource for terrestrial food webs? Ecology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.


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.



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.

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.

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.

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.

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.

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