Holekamp Lab
  • Home
  • Research
    • Spotted Hyena >
      • Hyena Publications
      • Carnivore Conservation
      • Communication
      • Cognition
      • Demography
      • Interspecific Competition and Anti-Predator Behavior
      • Socioendocrinology
      • Project Database
    • Arvicanthis niloticus
    • Belding's Ground Squirrel
    • Benefits of our Research
  • People
    • Kay Holekamp >
      • CV
    • Graduate Students
    • Lab Alumni
    • Lab Staff
  • Prospective Students
  • Courses
    • Study abroad: BEAM
  • About Hyenas
    • Images
  • Contact

Spotted Hyena Research

Publications
Green, D.S. & Holekamp, K.E. (in review) Pastoralist activities affect the movement patterns of a large African carnivore, the spotted hyena (Crocuta crocuta). Journal of Mammalogy.
 
Farr, M.T., Green, D.S., Holekamp. K. E. & Zipkin, E.F. (In review) Integrating distance       sampling and presence-only data to estimate abundance. Ecology.
 
Laubach, Z.M., Dolinoy, D.C., Faulk,C.D., Montrose, L.,  Jones, T.R.,  Ray, D.,  Pioon, M.O. &  Holekamp, K.E. (In revision) Early life social and ecological determinants of global DNA methylation in wild spotted hyenas. Molecular Ecology.
 
Green, D.S., Zipkin, E.F., Incorvaia, D.C. & Holekamp, K.E, (In review) Long-term ecological change inside a protected area in the Mara-Serengeti ecosystem. Global Ecology and Conservation.
 
Turner, J. W., LaFleur, R., Richardson, A. & Holekamp, K. E. (In review) Anthropogenic disturbance affects responses to model intruders by free-living spotted hyenas. Ethology.
 
Turner, J. W., Bills, P.S., & Holekamp K. E. (in review) Early life relationships matter: Social position during early life affects fitness among female spotted hyenas. Proceedings of the Royal Society London B.
 
Green, D.S., Farr, M.T.,  Holekamp, K.E., Strauss, E.D., & Zipkin, E.F (In revision) Can hyena behavior predict abundances of sympatric carnivores? Philosophical Transactions of the Royal Society, B.
 
Strauss, E.D. & Holekamp, K.E. (2019) Social alliances improve rank and fitness in convention-based societies. PNAS. https://doi.org/10.1073/pnas.1810384116
 
Holekamp, K.E. & Sawdy, M. A. (In press) The evolution of matrilineal social systems in fissiped carnivores. Philosophical Transactions of the Royal Society, B.
 
Strauss, E. D. & Holekamp, K. E. (2019) Inferring longitudinal hierarchies: Framework and methods for studying the dynamics of dominance. Journal of Animal Ecology. DOI: 10.1111/1365-2656.12951.
 
Farr, M.T., Green, D.S., Holekamp, K.E., Roloff, G.J., & Zipkin, E.F (2019) Multi-species hierarchical modeling reveals variable responses of African carnivores to management alternatives. Ecological Applications. 00(00):e01845. 10.1002/eap.184
 
Johnson-Ulrich, L., Johnson-Ulrich, Z. &. Holekamp, K. E. (2018) Proactive behavior, but not inhibitory control, predicts repeated innovation in spotted hyenas tested with a multi-access box. Animal Cognition. 21(3): 379-392.
 
Laubach, Z. M., Perng, W., Dolinoy, D.C., Faulk, C.D., Holekamp, K. E. & Getty, T. (2018) Epigenetics and the maintenance of developmental plasticity: extending the signaling theory framework. Biological Reviews. 93 (3): 1323-1338.
DOI 10.1111/brv.12396
 
Turner, J.W., Bills, P.S. & Holekamp, K. E. (2018) Ontogenetic change in determinants of social network position in the spotted hyena. Behavioral Ecology and Sociobiology. 72 (10): 1-15.
 
Green, D.S., Johnson-Ulrich, L., Couraud, H.E. & Holekamp, K.E. (2018) Anthropogenic disturbance induces opposing population trends in spotted hyenas and African lions. Biodiversity and Conservation. 27: 1-19. https://doi.org/10.1007/s10531-017-1469-7
 
Johnson-Ulrich, L., Lehmann, K.D.S., Turner, J. W. &. Holekamp, K. E. (2018)
Testing cognition in the Umwelt of the spotted hyena. In The experimental Umwelt:
A practical guide to animal cognition, (N. Bueno-Guerra & F. Amici, Eds.). Cambridge University Press, Cambridge, UK. Pp. 244-265.
 
Greenberg, J.R. & Holekamp, K.E. (2017). Human disturbance affects personality development in a wild carnivore. Animal Behaviour. 132: 303-312.
 
Holekamp, K.E. & Miikkulaninen, R. (2017) The evolution of general intelligence in all animals and machines. Behavioral and Brain Sciences. 40: 32-33.
 
Smith, J.E., Lehmann, K.D.S., Montgomery, T.M., Strauss, E.D. & Holekamp, K.E. (2017) Insights from long-term field studies of mammalian carnivores. Journal of Mammalogy. 98 (3): 631-641.
 
Holekamp, K.E. & Benson-Amram, S. (2017) The evolution of intelligence in mammalian carnivores. Interface Focus. 20160108. http://dx.doi.org/10.1098/rsfs.2016.0108.
 
Lewin, N., Swanson, E.M., Williams, B. L. & Holekamp, K.E. (2017) IGF-1 concentrations during early life predict life-history trade-offs in a wild mammal. Functional Ecology. 31 (4): 894-902.  doi: 10.1111/1365-2435.12808
 
Lehmann, K.D.S., Montgomery, T.M., MacLachlan, S.M., Parker, J.M., Spagnuolo, O.S., VandeWetering, K., Bills, P.S. & Holekamp, K.E. (2017) Lions, hyenas and mobs (oh my!). Current Zoology. 63(3): 313–322. doi: 10.1093/cz/zow073
 
Flies, A.S., Mansfield, L. S., Johnston-Flies, E. S., Grant, C. K. & Holekamp, K. E. (2016). Social rank predicts immune defenses in a long-lived wild carnivore. Functional Ecology. doi: 10.1111/1365-2435.12638.

Benson-Amram, S., Dantzer, B., Stricker, G., Swanson, E.M. & Holekamp, K. E. (2016) Brain size predicts problem-solving ability in mammalian carnivores. PNAS 113: 2532-2537. www.pnas.org/cgi/doi/10.1073/pnas.1505913113
 
Theis, K. R., Venkataraman, V., Wagner. A.P., Holekamp, K. E. & Schmidt, T.M. (2015) Age-related variation in the scent pouch bacterial communities of striped hyenas (Hyaena hyaena). In B. Schulte, T. Goodwin & M. Ferkin (Eds.), Chemical Signals in Vertebrates. 13: 87-103.
 
Flies, A.S., Mansfield, L.S., Grant, C.K., Weldele, M.L., & Holekamp, K.E. (2015) Markedly elevated antibody responses in wild versus captive spotted hyenas show that environmental and ecological factors are important modulators of immunity. PLoS1. Oct 7;10(10):e0137679   DOI: 0.1371/journal.pone.0137679
 
Ilany, A., Booms, A. S. & Holekamp, K. E. (2015) Structural constraints on long-term social network dynamics in a wild mammal. Ecology Letters. 18: 687–695.
doi: 10.1111/ele.12447
 
Smith, J. E., Estrada, J.R., Richards, H.R., Dawes, S.E., Mitsos, K. & Holekamp, K.E. (2015) Collective movements, leadership, and consensus costs at reunions in spotted hyaenas. Animal Behaviour. 105: 187-200, Doi: 10.1016/j.anbehav.2015.04.023
 
Holekamp, K.E., Dantzer, B., Stricker, G., Yoshida, K.C.S. & Benson-Amram, S. (2015) Brains, brawn and sociality: a hyaena’s tale. Animal Behaviour. 103: 237-248. DOI: 10.1016/j.anbehav.2015.01.023
 
Lewin, N., Treidel, L. A., Holekamp, K. E., Place N.J., & Haussmann, M.F. (2015) Socioecological variables predict telomere length in wild spotted hyenas. Biology Letters. Volume 11 20140991. DOI:10.1098/rsbl.2014.0991.
 
Gersick, A.S., Cheney, D.L., Schneider, J. M., Seyfarth, R. M. & Holekamp, K. E. (2015) Long-distance communication facilitates cooperation among spotted hyaenas (Crocuta crocuta). Animal Behaviour. 103: 107-116.
 
Jones, S. C., Strauss, E. D. & Holekamp K. E. (2015) Ecology of African Carrion. Pp. 459-489 in Carrion Ecology, Evolution, and Their Applications. M. E. Benbow, J. K. Tomberlin, & A. M. Tarone (Eds). CRC Press. Boca Raton, FL.
 
Curren L. J., Linden, D.W., Heinen, V. K., McGuire, M. C., & Holekamp, K. E. (2015). The functions of male-male aggression in a female-dominated mammalian society. Animal Behaviour 100: 208-216.
 
Green, D. S., Roloff, G.J., Heath, B. R. & Holekamp, K. E. (2015) Temporal dynamics of the responses by African mammals to prescribed fire. Journal of Wildlife Management. 79: 235–242, DOI: 10.1002/jwmg.827
 
Benson-Amram, S., Heinen, V., Gessner, A., Weldele, M. L., & Holekamp, K. E. (2014) Limited social learning of a novel technical problem by spotted hyenas. Behavioural Processes. 109: 111–120
 
Rajagopalan, P., Holekamp, K.E., & Miikkulainen, R. (2014) The evolution of general intelligence. Proceedings of The Fourteenth International Conference on the
Synthesis and Simulation of Living Systems (ALIFE'14, New York, NY).
 
Rajagopalan, P., Rawal, A., Holekamp, K.E., & Miikkulainen, R. (2014) General intelligence through prolonged evolution of densely connected neural networks. Proceedings of the 2014 Genetic and Evolutionary Computation Conference (GECCO-2014), Vancouver, Canada
 
Flies, A.S., Maksimoski, M., Mansfield, L. S., Weldele, M. L., & Holekamp, K.E. (2014). Characterization of toll-like receptors 1-10 in spotted hyenas. Veterinary Research Communications. 38(2):165-170. DOI: 10.1007/s11259-014-9592-3
 
Swanson, E.M., McElhinny, T. L., Dworkin, I., Weldele, M.L., Glickman, S. E. & Holekamp, K. E. (2013) Ontogeny of sexual size dimorphism in the spotted hyena (Crocuta crocuta). Journal of Mammalogy. 94: 1298-1310. DOI: http://dx.doi.org/10.1644/12-MAMM-A-277.1
 
Theis, K.R., Venkataraman, A., Dycus, J. A., Koonter, K.D.S., Schmitt-Matzen, E.N., Wagner. A.P., Holekamp, K.E., & Schmidt, T.M (2013) Symbiotic bacteria appear to mediate hyena social odors. Proceedings of the National Academy of Sciences of the United States of America 110: 19832–19837. http://www.pnas.org/cgi/doi/10.1073/pnas.1306477110
 
Nelson, K.G., Engh, A.L., McKnight, C. A. Kiupel, M., Wise, A.G., Maes, R.K.,
Rector, A., Stevens, H., Heylen, E., De Keyser, K., Van Ranst M., Flies, A.S. & Holekamp, K. E. (2013). Papillomavirus-associated cutaneous papillomas in a population of wild spotted hyenas (Crocuta crocuta). Journal of Wildlife Diseases 49: 627-631
 
Holekamp, K. E., Van Meter, P. E. & Swanson, E.M. (2013) Developmental constraints on behavioral flexibility. Philosophical Transactions of the Royal Society B. Vol. 368, No 1618, 20120350. (doi:10.1098/ rstb.2012.0350) (published May 2013)

Califf, K. J, Ratzloff, E.L., Wagner, A.P., Holekamp, K. E., & B.L. Williams. (2013). Pervasive gene duplication and positive selection at MHC loci in two hyena species. Journal of Mammalogy 94(2):282-294. DOI: 10.1644/12-MAMM-A-054.1

Benson-Amram, S. R., Weldele, M. L. & Holekamp, K. E. (2013) A comparison of innovative problem-solving abilities between wild and captive spotted hyaenas (Crocuta crocuta). Animal Behaviour. 85: 349-356.

Stevens, H., Heylen, E., De Keyser, K., Maes, R., Kiupel, M., Wise, A., Nelson, K., Holekamp, K. E., Engh, A., McKnight, C., Van Ranst, M., & Rector, A. (2013) Complete genome sequence of the Crocuta crocuta papillomavirus type 1 (CcrPV1) of a spotted hyena: the first papillomavirus characterized in a member of the Hyaenidae. Genome Announcements. 1(1):e00062-12. doi:10.1128/genomeA.00062-12.
Curren, L. J., Weldele, M. L., Glickman, S. E. & Holekamp, K. E. (2013) Ejaculate quality in a wild carnivore: intraspecific variation in relation to life history traits. Journal of Mammalogy. 94: 90-99.

Theis, K. R., Schmidt, T. M. & Holekamp, K. E. (2012) Evidence for a bacterial mechanism for group-specific social odors among hyenas. Scientific Reports 2, 615; DOI:10.1038/srep00615.

Swanson, E.M., Holekamp, K. E., Lundrigan, B. L., Arsznov, B. & Sakai, S.T. (2012) Multiple determinants of brain size and brain architecture in mammalian carnivores. PloS One. 7: 1-11. e38447. doi:10.1371/journal.pone.0038447.

Benson-Amram, S. & Holekamp, K. E. (2012). Innovative problem solving by wild spotted hyenas. Proceedings of the Royal Society, London B. 279: 4087-4095.
doi: 10.1098/rspb.2012.1450

Rawal, A., Rajagopalan, P., Miikkulainen, R., & Holekamp, K. E. (2012). Evolution of a Communication Code in Cooperative Tasks. Artificial Life 13: 243-250.

Holekamp, K.E, Smith, J. E., Strelioff, C. C., Van Horn, R.C. & Watts, H. E. (2012) Society, demography and genetic structure in the spotted hyena. Molecular Ecology. 21: 613–632. DOI: 10.1111/j.1365-294X.2011.05240.x.

Smith, J. E., Swanson, E. M., Reed, D. & Holekamp, K.E. (2012) Evolution of cooperation among mammalian carnivores and its relevance to hominins. Current Anthropology.

Swanson, E.M., Holekamp, K. E., Lundrigan, B. L., Arsznov, B. & Sakai, S.T. (2012) Multiple determinants of brain size and brain architecture in mammalian carnivores. PloS one. (In press)

Flies, A. S., Grant,C. K., Smith, E. J., Mansfield, L. S., Glickman, S. E., Weldele, M. L., & Holekamp, K. E. (2012). Development of a hyena immunology toolbox. Veterinary Immunology and Immunopathology. 145:110–119.

Jenson, K. Silk, J. B., Andrews, K., Bshary, R., Cheney, D. L., Emery, N., Hemelrijk, C. K., Holekamp, K. E., Penn, D.C., Perner, J., & Teufel, C. (2011) Social knowledge. In Animal Thinking: Contemporary Issues in Comparative Cognition. (Randolf Menzel & Julia Fischer, Eds.) MIT Press. Pp 267- 291

Swanson, E.M., Dworkin, I. & Holekamp, K. E. (2011) Lifetime selection on a hypoallometric size trait in the spotted hyena. Proceedings of the Royal Society of London B. 278: 3277–3285.

Sakai, S.T, Arsznov, B. M, Lundrigan, B.L. & Holekamp, K. E. (2011) Brain size and social complexity: A computed tomography study in Hyaenidae. Brain, Behavior and Evolution. 77:91-104.

La Croix, S., Holekamp, K. E., Shivik, J. A., Lundrigan, B. L., & Zelditch, M. L. (2011) Ontogenetic Relationships Between Cranium and Mandible in Coyotes and Hyenas. Journal of Morphology. 272: 662-674.

Watts, H. E, Scribner, K. T., Garcia, H. A. & Holekamp. K. E. (2011) Genetic diversity and structure in two spotted hyena populations reflects social organization and male dispersal. Journal of Zoology, London. 285: 281-291.

Holekamp, K.E, Smith, J. E., Strelioff, C. C., Van Horn, R.C. & Watts, H. E. (2011) Society, demography and genetic structure in the spotted hyena. Molecular Ecology. 21: 613–632.
La Croix, S., Zelditch, M. L., Shivik, J. A., Lundrigan, B. L., & Holekamp, K. E. (2011). Ontogeny of feeding performance and biomechanics in coyotes and hyenas. Journal of Zoology, London. 285: 301-315.

Rajagopalan, P., Rawal, A., Miikkulainen, R., Wiseman, M. A. & Holekamp, K. E. (2011) The role of reward structure, coordination mechanism and net return in the evolution of cooperation. 2011 IEEE Conference on Computational Intelligence and Games. Pp. 258-265.

Benson-Amram, S., Heinen, V.K., Dryer, S. L. & Holekamp, K. E. (2011) Numerical assessment and individual call discrimination by wild spotted hyaenas, Crocuta crocuta. Animal Behaviour. 82: 743-752.

Sakai, S.T, Arsznov, B. M, Lundrigan, B.L. & Holekamp, K. E. (2011) Virtual endocasts: an application of computed tomography in the study of brain variations in hyenas. Annals of the New York Academy of Sciences. 1225: E160-E170.

Place, N. E., Coscia, E. M., Dahl, N. J., Drea, C. M., Holekamp, K. E., Roser, J. F., Sisk, C. L., Weldele, M. L. & Glickman, S. E. (2011) The anti-androgen combination, flutamide plus finasteride, paradoxically suppressed LH and androgen concentrations in pregnant spotted hyenas, but not in males. General and Comparative Endocrinology. 170: 455-459.

Smith, J. E., Powning, K.S., Dawes, S. E., Estrada, J. R., Hopper, A. L., Piotrowsky, S. L. & Holekamp. K. E. (2011) Greetings promote cooperation and reinforce social bonds among spotted hyaenas. Animal Behaviour. 81: 401-415.

Arsznov, B. M., Lundrigan, B.L., Holekamp, K. E. & Sakai, S. T. (2010) Sex and the frontal cortex: a developmental study in the spotted hyena. Brain, Behavior and Evolution. 76: 185-197.

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.

Holekamp, K. E. & Dloniak, S. M. (2010) Intra-specific variation in the behavioral ecology of a tropical carnivore, the spotted hyena. In Behavioral Ecology of Tropical Animals: From Ants to Zebras (R. Macedo, Ed.) Advances in the Study of Behavior. 42: 189-229.

Pangle, W. M. & Holekamp, K. E. (2010) Age-related variation in threat-sensitive behavior exhibited by spotted hyenas: Observational and experimental approaches. Behaviour. 147: 1009-1033.

Tanner, J. B., Zelditch, M. L., Lundrigan, B. L, & Holekamp, K. E. (2010). Ontogenetic change in skull morphology and mechanical advantage in the spotted hyena (Crocuta crocuta). Journal of Morphology. 271: 353-365.

Pangle, W. M. & Holekamp, K. E. (2010) Functions of vigilance behavior in a social carnivore, the spotted hyaena, Crocuta crocuta. Animal Behaviour. 80: 257-267.

Smith, J.E., Van Horn, R.C., Powning, K.S., Cole, A.R., Graham, K.E., Memenis, S.K., & Holekamp, K.E. (2010) Evolutionary forces favoring intragroup coalitions among spotted hyenas and other animals. Behavioral Ecology. 21: 284-303.

Pangle, W. M & Holekamp, K. E. (2010) Lethal and non-lethal anthropogenic effects on spotted hyenas in the Masai Mara National Reserve. Journal of Mammalogy. 91:154-164.

Holekamp, K. E. & Engh, A. L. (2009) Reproductive skew in female-dominated mammalian societies. In Reproductive Skew in Vertebrates: proximate and ultimate causes. R. Hager and C.B. Jones (Eds.) Cambridge University Press, Cambridge. Pp 53-83.

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, London. 276: 2291-2298.

Holekamp, K. E. & Dloniak, S. M. (2009) Maternal effects in fissiped carnivores. In Maternal Effects in Mammals. D. Maestripieri and J. Mateo (Eds.) University of Chicago Press, Chicago. Pp 227-255.

Watts, H. E. & Holekamp, K. E. (2009) Ecological determinants of survival and reproduction in the spotted hyena. Journal of Mammalogy. 90:461-471.

Lansing, S.W., Cooper, S. M., Boydston, E.E. & Holekamp, K. E. (2009) Taphonomic and zooarchaeological implications of spotted hyena (Crocuta crocuta) bone accumulations in Kenya: a modern behavioral ecological approach. Paleobiology 35: 289-309.

Kolowski, J. M. & Holekamp, K. E. (2009) Ecological and anthropogenic influences on space use by spotted hyaenas (Crocuta crocuta). Journal of Zoology, London. 277: 23-36.

Van Meter, P. E., French, J. A., Dloniak, S. M., & Holekamp, K. E. (2009) Fecal glucocorticoids reflect socio-ecological and anthropogenic stressors in the lives of wild spotted hyena. Hormones and Behavior. 55: 329- 337.

Watts, H. E. & Holekamp, K. E. (2008) Interspecific competition influences reproduction in spotted hyenas. Journal of Zoology, London. 276: 402-410.

Tanner, J. B., Dumont, E. R. Sakai, S. T., Lundrigan, & Holekamp, K. E. (2008) Of arcs and vaults: the biomechanics of bone-cracking in spotted hyenas (Crocuta crocuta). Biological Journal of the Linnean Society. 95: 246-255.

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. 49:627-654.

Kolowski, J. M. & Holekamp, K. E. (2008) Effects of an open refuse pit on space use patterns of spotted hyenas. African Journal of Ecology. 46: 341-349.

Van Horn, R. C., Watts, H. E. & Holekamp, K. E. (2008) Do female hyaenas choose mates based on tenure? Nature. 454: E1 (doi:10.1038/nature07122).

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.

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. 76: 619-636.

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.

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

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.

Nunes, S., Muecke, E. M. & Holekamp, K. E. (2002) Seasonal effects of food provisioning on body fat, insulin, and corticosterone in free-living juvenile Belding’s ground squirrels (Spermophilus beldingi) Canadian Journal of Zoology. 80: 1-6.

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.

Nunes, S., Muecke, E. M., Ross, H. E., Bartholomew, P. A. & Holekamp, K. E. (2000) Food availability affects behavior but not circulating gonadal hormones in maternal Belding’s ground squirrels. Physiology and Behavior 71:447-455.

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.

Spotted Hyena Research
  • Hyena Publications
  • Carnivore Conservation
  • Communication
  • Cognition
  • Demography
  • Interspecific Competition and Anti-predator Behavior
  • Socioendocrinology
  • Project Database
Arvicanthis niloticus
Belding's Ground Squirrel
Benefits of our Research
Sample Publications:
  • Altered behaviour in spotted hyenas associated with increased human activity
     Erin E. Boydston, Karen M. Kapheim, Heather E. Watts, Micaela Szykman and Kay E. Holekamp, 2003, Animal Conservation
  • "SPOTTED HYENAS: MISUNDERSTOOD INDICATORS OFF ECOSYSTEM HEALTH?" Holekamp 2010, Swara
  • "Spatial, temporal, and physical characteristics of livestock depredations by large carnivores along a Kenyan reserve border" Kolowski & Holekamp, 2006
  • Ecological and anthropogenic influences on space use by spotted hyaenas, Kolowski & Holekamp, 2009
  • Evolution of Cooperation among Mammalian Carnivores and Its Relevance to Hominin Evolution, Jennifer E. Smith, Eli M. Swanson, Daphna Reed, and Kay E. Holekamp, 2012
Picture
Picture
Picture
Picture
Picture
Picture
Picture
Picture
Picture
Picture
Picture
Integrative Biology Department
MSU EEBB
BEACON
Hyena conservation
© 2016 Kay E. Holekamp
  • Home
  • Research
    • Spotted Hyena >
      • Hyena Publications
      • Carnivore Conservation
      • Communication
      • Cognition
      • Demography
      • Interspecific Competition and Anti-Predator Behavior
      • Socioendocrinology
      • Project Database
    • Arvicanthis niloticus
    • Belding's Ground Squirrel
    • Benefits of our Research
  • People
    • Kay Holekamp >
      • CV
    • Graduate Students
    • Lab Alumni
    • Lab Staff
  • Prospective Students
  • Courses
    • Study abroad: BEAM
  • About Hyenas
    • Images
  • Contact