Mating systems, social interaction, and parental effort are intimately linked to patterns of sexual selection, life-history, and the ways in which the environment shapes the evolution of different sexes. This is the focus of my research: I study the selective pressures that give rise to different mating systems, patterns of sexual selection, and behavior such as parental care. I use a combination of field and laboratory observation, manipulative experiments, and mathematical modeling to advance and test theory. In my lab, we are driven by curiosity, embrace diversity, foster critical and independent thinking, and place a high priority on scientific rigor.
Grants/Projects Since 2009
2015: University of Tennessee at Chattanooga Faculty Development Grant.
2015: Foundation of Greater Chattanooga Grant: Enrichment for students and animals: Using Animal Behavior to Encourage STEM Learning ($15,000) (PI: P. Foerder; Co-PIs: H. Klug & L. Hayes)
2013-2016: National Science Foundation: MRI: Acquisition of growth chambers for global change biology research and research training at the University of Tennessee at Chattanooga. NSF Division of Biological Infrastructure, Major Research Instrumentation. ($342,945) (PI: J. Boyd; Co-PIs: S. Chatzimanolis, H. Klug, J. Shaw, & T. Wilson).
2012: University of Tennessee at Chattanooga Faculty Development Grant.
2008-2010: National Science Foundation International Research Program: The Role of
Resource Competition and Density Dependence in Sexual Selection Theory ($174, 362)
Publications Since 2009
Thrasher, P., Reyes, E., and Klug, H. 2015. Parental investment and mate choice in the giant water bug Belostoma lutarium. Ethology 121: 1018-1029 (Note: Thrasher and Reyes contributed equally to this work and share first authorship).
Klug, H. 2014. Evolution: students debate the debate (Correspondence in response to Laland et al., Wray et al. 2014. Does evolutionary theory need a rethink? Nature 514: 161-164.) Nature 515: 343.
Klug, H. and Hicks, P. 2014. The Giant Water Bug Belostoma lutarium: An Ideal System for Studies of Ecology, Evolution, and Behavior. Journal of the Tennessee Academy of Science 89: 51-58.
Klug, H. & Bonsall, M.B. 2014. The benefits of parental care in relation to increased offspring survival and parental effects on developmental rate. Ecology & Evolution 4: 2330-2351.
Klug, H., Bonsall, M.B., & Alonzo, S.H. 2013. Sex differences in life history drive transitions between maternal, paternal and bi-parental care. Ecology & Evolution 3: 792-806.
Klug, H., Bonsall, M.B., & Alonzo, S.H. 2013. The origin of parental care in relation to male and female life-history. Ecology & Evolution. 3:779-791.
Kokko, H., Klug, H., & Jennions, M.D. 2012. Unifying cornerstones of sexual selection: operational sex ratio, Bateman gradient, and the scope for competitive investment. Ecology Letters (invited review). 15:1340-1351.
Jennions, M.J., Kokko, H., & Klug. H. 2012. The opportunity to be misled in studies of sexual selection. Journal of Evolutionary Biology. 25:591-598.
Kazancıoğlu, E., Klug, H., & Alonzo, S.H. 2012. The evolution of social interactions changes predictions about interacting phenotypes. Evolution 66: 2056-2064.
Klug, H. 2011. Animal mating systems. Encyclopedia of Life Sciences.
Bonsall, M.B. & Klug, H. 2011. Effects of among-offspring relatedness on the evolution of parental care and filial cannibalism. Journal of Evolutionary Biology 24: 1335-1350.
Bonsall, M.B. & Klug, H. 2011. The evolution of parental care in stochastic environments. Journal of Evolutionary Biology 24: 645-655.
Klug, H., Heuschele, J., Jennions, M.D, & Kokko, H. 2010. The mismeasurement of sexual selection. Journal of Evolutionary Biology. 23(3):447-462.
Klug, H., Lindström, K., & Kokko, H. 2010. Who to include in measures of sexual selection is no trivial matter. Ecology Letters. 13:1094-1102.
Klug, H. & Bonsall, M.B. 2010. Life history and the evolution of parental care. Evolution. 64(3):823-835.
Chin-Baarstad, A., Klug, H., & Lindström, K. 2009. Should you eat your offspring before someone else does? Effect of an egg predator on filial cannibalism in the sand goby. Animal Behaviour 78: 203-208.
Klug, H. 2009. The relationship between filial cannibalism, egg energetic content, and parental condition in the flagfish. Animal Behaviour 77: 1313-1319.
Kokko, H., Klug, H., & Jennions, M.J. 2014. “Mating systems theory”, pp. 42-58 in The Evolution of Insect Mating Systems (eds. Shuker, D.M. and Simmons, L.W.). Oxford University Press, Oxford.
Klug, H., Alonzo, S.H., & Bonsall, M.B. 2012. “Theoretical foundations of parental care”, pp. 21-39 in The Evolution of Parental Care (eds. Royle, N.J., Smiseth, P.T., & Kölliker, M.). Oxford University Press, Oxford.
Alonzo, S.H. & Klug, H. 2012. “Maternity, paternity and parental care”, pp. 189-205 in The Evolution of Parental Care (eds. Royle, N.J., Smiseth, P.T. & Kölliker, M.). Oxford University Press, Oxford.