Kay Holekamp Laboratory

Pangle, W. M & Holekamp,. K. E. (In review) Lethal and non-lethal anthropogenic effects on spotted hyenas in the Masai Mara National Reserve. Biological Conservation.

Kolowski, J. M. & Holekamp, K. E. (In press) Ecological and anthropogenic influences on space use by spotted hyaenas (Crocuta crocuta). Journal of Zoology, London.

Van Horn, R.C., Watts, H. E. & Holekamp, K. E. (2008). Do female hyaenas choose mates based on tenure? Nature. doi:10.1038/nature07122

Lansing, S.W., Cooper, S. M., Boydston, E.E. & Holekamp, K. E. (In review) Taphonomic and zooarchaeological implications of spotted hyena (Crocuta crocuta) bone accumulations in Kenya: a modern behavioral ecological approach. Paleobiology.

Watts, H. E. & Holekamp, K. E. (In review) Ecological determinants of survival and reproduction in the spotted hyena. Journal of Mammalogy.

Smith, J. E., Kolowski, J. M., Graham, K. E., Dawes, S. E. & Holekamp, K. E. (2008) Social and ecological determinants of fission-fusion dynamics in the spotted hyaena. Animal Behaviour. In press

Watts, H. E. & Holekamp, K. E. (In review) Interspecific competition influences reproduction in spotted hyenas. Journal of Zoology, London.

Holekamp, K. E. & Dloniak, S. M. (2008) Maternal effects in fissiped carnivores. In Maternal Effects in Mammals. D. Maestripieri and J. Mateo (Eds.) University of Chicago Press, Chicago. In press.

Holekamp, K. E. & Engh, A. L. (2008) Reproductive skew in female-dominated mammalian societies. In Reproductive Skew in Vertebrates: Behavioural, Ecological, and Genetic Factors, R. Hager and C.B. Jones (Eds.) Cambridge University Press, Cambridge. In press.

Aureli, F, Schafner, C.M., Boesch, C., Bearder, S.K., Call, J., Chapman, C.A., Conner, R., Difiore, A., Dunbar, R. I. M., Henzi, S. P., Holekamp, K. E., Korstjens, A. H., Layton, R.H., Lee, P., Leymann, J., Manson, J.H., Ramos-Fernandez, G., Strier, K.B., Van Schaik, C.P. (2008) Fission-Fusion Dynamics: New Research Frameworks. Current Anthropology. In press.

Kolowski, J. M. & Holekamp, K. E. (2008) Effects of an open refuse pit on space use patterns of spotted hyenas. African Journal of Ecology. In press.

Tanner, J. B., Dumont, E. R., Sakai, S. T., Lundrigan, B. L. & Holekamp, K. E. (2008) Of arcs and vaults: the biomechanics of bone-cracking in spotted hyenas (Crocuta crocuta). Biological Journal of the Linnean Society. In press.

Theis, K. R., Heckla, A. L., Verge, J. R. & Holekamp, K. E. (2008) The ontogeny of pasting behavior in free-living spotted hyenas, Crocuta crocuta. In: J. L. Hurst, R.J. Beynon, S.C. Roberts & T. D. Wyatt (Eds.), Chemical Signals in Vertebrates 11. Springer, New York. 179-188.

Van Meter, P. E., French, J. A., Bidali, K., Weldele, M. L., Brown, J. L., & Holekamp, K. E. (2008) Non-invasive measurement of fecal estrogens in the spotted hyena (Crocuta crocuta). General and Comparative Endocrinology.155:464-471.

Tanner, J. B., Smale, L, & Holekamp, K. E. . (2007) Ontogenetic variation in the play behavior of spotted hyenas (Crocuta crocuta). Journal of Developmental Processes. 2: 5-30.

Wahaj, S. A., Place, N. J., Weldele, M. L., Glickman, S. E. & Holekamp, K. E. (2007) Siblicide in the spotted hyena: analysis with ultrasonic examination of wild and captive individuals. Behavioral Ecology. 18: 974-984.

Kolowski, J. M., Katan, D., Theis, K. R., & Holekamp, K. E. (2007) Daily patterns of activity in the spotted hyena. Journal of Mammalogy. 88: 1017-1028.

Holekamp, K. E., S. T. Sakai & Lundrigan, B. L. (2007) Social intelligence in the spotted hyena (Crocuta crocuta). In Social Intelligence: From Brain to Culture. N.J. Emery, N. S. Clayton, & C. Frith (Eds.) Oxford University Press. Oxford, UK. Pp 63-87.

Watts, H. E. & Holekamp, K. E. (2007) Hyena societies. Current Biology.17: R657-R660.

Szykman. M., Van Horn, R. C., Engh, A.L. Boydston, E. E. & Holekamp, K. E. (2007) Courtship and mating in free-living spotted hyenas. Behaviour. 144: 815-846.

Theis, K. R., Greene, K. M., Benson-Amram, S. R., & Holekamp, K. E. (2007). Sources of variation in the long-distance vocalizations of spotted hyenas. Behaviour.144: 557-584

Holekamp, K. E., Sakai, S. T. & Lundrigan, B. L. (2007) The spotted hyena as a model system for study of the evolution of intelligence. Journal of Mammalogy. 88: 545-554.

Holekamp, K. E. (2007) Questioning the social intelligence hypothesis. Trends in Cognitive Science. 11: 65-69.

Holekamp, K. E., S. T. Sakai & Lundrigan, B. L. (2007) Social intelligence in the spotted hyena (Crocuta crocuta). Philosophical Transactions of the Royal Society B. 362:523-538.

Smith, J. E., Memenis, S. K. & Holekamp, K. E. (2007) Rank-related partner choice in the fission-fusion society of the spotted hyena (Crocuta crocuta) Behavioral Ecology and Sociobiology. 61: 753-765.

Dloniak, S.M., French, J. A. & Holekamp, K. E. (2006) Rank-related maternal effects of androgens on behaviour in wild spotted hyaenas. Nature. 439: 1190-1193.

Boydston, E. E., Kapheim, K. M. & Holekamp, K. E. (2006) Patterns of den occupation by the spotted hyena (Crocuta crocuta). African Journal of Ecology. 44: 77-86

Wahaj, S. A. & Holekamp, K. E. (2006) Functions of sibling aggression in the spotted hyaena (Crocuta crocuta) Animal Behaviour. 71:1401-1409.

Nunes, S., Pelz, K. M., Muecke, E. M., Zucker, I. & Holekamp, K. E. (2006) Plasma glucocorticoid concentrations and body mass in ground squirrels: seasonal variation and circannual organization. General and Comparative Endocrinology. 146: 131-138.

Dloniak, S. M., French, J. A. & Holekamp, K. E. (2006) Faecal androgen levels in adult male spotted hyaenas (Crocuta crocuta) reflect interactions with socially dominant females. Animal Behaviour. 71: 27-37.

Kolowski, J. M. & Holekamp, K. E. (2006) Spatial and temporal variation in livestock depredation by large carnivores along a Kenyan reserve border. Biological Conservation. 128: 529-541.

Boydston, E. E., Kapheim, K. M., Van Horn, R. C., Smale, L. & Holekamp, K. E. (2005) Sexually dimorphic patterns of space use throughout ontogeny in the spotted hyaena (Crocuta crocuta). Journal of Zoology, London. 267: 271-281.

Engh, A. L, Siebert, E. R., Greenberg, D. A. & Holekamp, K. E. (2005) Patterns of alliance formation and post-conflict aggression indicate spotted hyaenas recognize third party relationships. Animal Behaviour. 69: 209-217.

Van Horn, R. C., Wahaj, S. A. & Holekamp, K. E. (2004). Role-reversed nepotistic interactions between sires and offspring in the spotted hyena. Ethology. 110: 1-14.

Wahaj, S.A, Van Horn, R. C,. Van Horn, T., Dreyer, R., Hilgris, R., Schwarz, J. & Holekamp, K. E. (2004) Kin discrimination in the spotted hyena (Crocuta crocuta): Nepotism among siblings. Behavioral Ecology and Sociobiology. 56: 237-247.

Harrison, T.M., Mazet, J.K., Holekamp, K. E., Dubovi, E., Engh, A.L., Nelson, K., Van Horn, R. C. & Munson, L. (2004) Antibodies to canine and feline viruses in spotted hyenas (Crocuta crocuta) in the Masai Mara National Reserve, Kenya. Journal of Wildlife Diseases. 40: 1-10.

Van Horn, R. C., Engh, A. L., Scribner, K. T., Funk, S. M. & Holekamp, K. E. (2004) Behavioral structuring of relatedness in the spotted hyena (Crocuta crocuta) suggests direct fitness benefits of clan-level cooperation. Molecular Ecology. 13: 449-458.

Dloniak, S. M., French, J. A., Place, N. J., Weldele, M. L., Glickman, S. E. & Holekamp K. E. (2004) Non-invasive monitoring of fecal androgens in spotted hyenas (Crocuta crocuta). General and Comparative Endocrinology. 135: 51-61.

Holekamp, K. E. & Sisk, C. L. (2003) Effects of dispersal status on gonadal and pituitary function in the male spotted hyena. Hormones and Behavior. 44: 385-394.

Szykman, M., Engh, A. L., Van Horn, R. C., Scribner, K. T., Smale L. & Holekamp, K. E. (2003) Rare male aggression directed toward females in a female-dominated society: baiting behavior in the spotted hyena. Aggressive Behavior. 29: 457-474.

Boydston, E. E., Kapheim, K. M., Szykman, M. & Holekamp, K. E. (2003) Individual variation in space utilization by female spotted hyenas (Crocuta crocuta). Journal of Mammalogy. 84: 1006-1018.

Van Horn, R.C., McElhinny, T.L. & Holekamp, K. E. (2003) Age estimation and dispersal in the spotted hyena (Crocuta crocuta). Journal of Mammalogy. 84: 1019-1030.

Boydston, E. E., Kapheim, K. M., Watts, H. E., Szykman, M. & Holekamp, K. E. (2003) Altered behavior in spotted hyenas associated with increased human activity. Animal Conservation. 6: 207-219.

Wahaj, S. A. & Holekamp, K. E. (2003) Conflict resolution in the spotted hyena. In Animal Social Complexity. F. B. M. De Waa l & P. L. Tyack (eds). Harvard University Press. Pp. 249-253.

Engh, A. L. & Holekamp, K. E. (2003) Maternal rank ‘inheritance’ in the spotted hyena. In Animal Social Complexity. F. B. M. De Waal & P. L. Tyack (eds). Harvard University Press. Pp. 149-152.

Engh, A. L., Nelson, K. G., Peebles, C. R., Hernandez, A. D., Hubbard, K. K., & Holekamp, K. E. (2003). A coprological survey of the parasites of spotted hyaenas (Crocuta crocuta) in the Masai Mara National reserve, Kenya. Journal of Wildlife Diseases. 39: 224-227.

Place, N. J. Holekamp, K. E., Sisk, C. L. Weldele ,M. L. Coscia, E. M. Drea, C.M. & Glickman, S. E. (2002) Effects of prenatal treatment with anti-androgens on luteinizing hormone secretion and sex steroid concentrations in adult spotted hyenas, Crocuta crocuta. Biology of Reproduction 67: 1405-1413.

Engh, A. L., Funk, S. M., Van Horn, R. C., Scribner, K. T., Bruford, M. W., Szykman, M., Smale, L. & Holekamp, K. E. (2002) Reproductive skew among males in a female-dominated society. Behavioral Ecology. 13: 193-200.

Holekamp, K. E. & Engh, A. L. (2002) Field studies of social cognition in spotted hyenas. In Bekoff, M., Allen, C., & Burghardt, G. M. (Eds) The Cognitive Animal: Empirical and Theoretical Perspectives on Animal Cognition. Oxford University Press. Pp 371-377.

Szykman M., Engh, A. L., Van Horn, R. C., Funk, S., Scribner, K. T. & Holekamp, K. E. (2001) Association patterns between male and female spotted hyenas reflect male mate choice. Behavioral Ecology and Sociobiology. 50: 231-238.

Wahaj, S. A., Guse, K. & Holekamp, K. E. (2001) Reconciliation in the spotted hyena (Crocuta crocuta). Ethology. 107: 1057-1074

Boydston, E. E., Morelli, T. L. & Holekamp, K. E. (2001) Sex differences in territorial behavior exhibited by the spotted hyena (Crocuta crocuta). Ethology. 107:369-385.

Engh, A., Esch, K. Smale,,L. & Holekamp, K. E. (2000). Mechanisms of maternal rank ‘inheritance’ in the spotted hyaena. Animal Behaviour. 60:323-332.

Holekamp, K.E. & Smale, L. (2000) Feisty females and meek males: reproductive strategies in the spotted hyena. In Reproduction in Context. K. Wallen and J. Schneider (Eds). MIT Press. Cambridge. MA. Pp. 257-285.

Holekamp, K. E., Boydston, E. E. & Smale, L. (2000) Group travel in social carnivores. In On the move: group travel in primates and other animals. .S. Boinski and P. Garber (Eds.), University of Chicago Press, Chicago. Pp 587-627

Smale, L., Holekamp, K. E. & White, P. A. . (1999) Siblicide revisited in the spotted hyaena: does it conform to obligate or facultative models? Animal Behaviour. 58: 545-551.

Holekamp, K. E., Boydston, E. E., Szykman, M., Graham, I., Nutt, K., Birch, S., Piskiel, A. & Singh, M. (1999) Vocal recognition in the spotted hyaena and its possible implications regarding the evolution of intelligence. Animal Behaviour. 58:383-395.

Holekamp, K. E., Szykman, M., Boydston, E.E. & Smale, L. (1999) Association of seasonal reproductive patterns with changing food availability in an equatorial carnivore. Journal of Reproduction and Fertility. 116: 87-93.

Cooper, S. M. Holekamp, K. E. & Smale, L. (1999) A seasonal feast: long-term analysis of feeding behavior in the spotted hyaena, Crocuta crocuta (Erxleben). African Journal of Ecology. 37: 149-160.

Holekamp, K. E. & Smale L. (1998a). Behavioral development in the spotted hyena. Bioscience. 48: 997-1005.

Holekamp, K. E. & Smale L. (1998b). Dispersal status influences hormones and behavior in the male spotted hyena. Hormones and Behavior. 33: 205-216.

Holekamp, K. E., Smale, L., Berg, R. & Cooper, S. M. (1997) Hunting rates and hunting success in the spotted hyaena. Journal of Zoology, London. 242: 1-15.

Holekamp, K. E., Cooper, S. M., Katona, C.I., Berry,,N.A., Frank, L.G. & Smale L. (1997) Patterns of association among female spotted hyenas (Crocuta crocuta). Journal of Mammalogy. 78: 55-64.

Holekamp, K. E., Smale, L. & Szykman, M. (1996). Rank and reproduction in the female spotted hyaena. Journal of Reproduction and Fertility.108:229-237.

Alexander, K.A., Kat, P.W., Frank, L.G., Holekamp, K. E., Smale, L., House, C. & Appell, M. J. G. (1995) Evidence of canine distemper virus infection among free-ranging spotted hyenas in the Masai Mara, Kenya. Journal of Zoo and Wildlife Medicine. 26: 201-206.

Frank, L. G., Holekamp, K. E. & Smale, L. (1995) Dominance, demography, and reproductive success of female spotted hyenas. In Serengeti II: Conservation, Research, and Management. A. R. E. Sinclair and P. Arcese (eds.). University of Chicago Press. Chicago. Pp 364-384.

Smale, L., Holekamp, K. E., Weldele, M., Frank, L. G. & Glickman ,S.E. (1995) Competition & cooperation between littermates in the spotted hyaena (Crocuta crocuta). Animal Behaviour. 50: 671-682.

Holekamp, K. E. & Smale L. (1995) Rapid change in offspring sex ratios after clan fission in the spotted hyena. The American Naturalist.145: 261-278.

Alexander, K.A., Maclaughlin, N.J., Kat, P.W., House, C., O'Brien, S.J., Lerche, N.W., Sawyer, M., Frank, L.G., Holekamp, K. E., Smale, L., McNutt, J.W., Laurenson, M.K., Mills, M.G.L. & Osburn B. I. (1994) Evidence of natural bluetongue virus infection among African and Indian carnivores. American Journal of Tropical Medicine and Hygiene . 51: 568-576.

Holekamp, K. E. & Smale L. (1993) Ontogeny of dominance in free-living spotted hyaenas: Juvenile rank relations with other immature individuals. Animal Behaviour. 46: 451-466.

Smale, L., Frank, L. G. & Holekamp, K. E. (1993) Ontogeny of dominance in free-living spotted hyaenas: Juvenile rank relations with adults. Animal Behaviour. 46: 467-477.

Holekamp, K. E., Ogutu, J., Frank, L. G., Dublin, H. T., & Smale, L. (1993) Fission of a spotted hyena clan: Consequences of female absenteeism and causes of female emigration. Ethology. 93: 285-299.

Glickman, S.E., Frank, L.G., Holekamp, K. E., Smale, L. & Licht. P. (1993) Costs and benefits of "androgenization" in the female spotted hyena: the natural selection of physiological mechanisms. In Perspectives in Ethology, Volume 10: Behaviour and Evolution. P.P.G. Bateson, P. H. Klopfer, and N. S. Thompson (eds.). New York. Plenum Press. pp 87-117.

Holekamp, K. E. & Smale L. (1991) Dominance acquisition during mammalian social development: the "inheritance" of maternal rank. American Zoologist. 31: 306-317.

Holekamp, K. E. & Smale L. (1990) Provisioning and food-sharing by lactating spotted hyenas (Crocuta crocuta). Ethology. 86: 191-202.

OTHER PUBLICATIONS

Holekamp, K. E. & Kolowski, J. M. (In press) Hyaenidae. In Handbook of Mammals of the World. D. Wilson, R. Mittermeier &. G. Fonseca (Eds.) Lynx Edicions, Madrid, Spain

Holekamp, K. E. (2006) Spotted hyaenas. Current Biology. 16: R944-R945.

Engh, A.L, & K. E. Holekamp. (2003) Uncovering the secret lives of hyenas. Annual Science Encyclopedia. World Book Publishing. Chicago. Pp 118-131

Holekamp, K. E. & L. Smale (2000). A hostile homecoming. In The Smile of a Dolphin: Remarkable Accounts of Animal Emotions. M. Bekoff (ed.) Discovery Books (Random House). New York. Pp. 118-121

Boydston, E. E. & K. E. Holekamp (2000) Applications of geographic information system (GIS) technology to hyena conservation. I.U.C.N. Hyaena Specialist Group Newsletter 7: 24-27

Holekamp, K. E. (1997) Book review of Carnivore behavior ecology, and evolution: volume two, edited by J. L. Gittleman. Quarterly Review of Biology. 72: 212.

Smale, L. & K. E. Holekamp. (1993) Growing up in the clan. Natural History. 102: 42-53

Holekamp, K. E. & L. Smale. (1992) Hyaena-human relations in and around the Masai Mara National Reserve, Kenya. I.U.C.N. Hyaena Specialist Group Newsletter #5, Pp. 19-20. M.G.L. Mills (ed.). April, 1992.

Smale, L. & K. E. Holekamp (1991) The misunderstood spotted hyena. Swara. 14: 10-13.