Publications

2026

Rogers, W., Ezenwa, V.O., Carter, G.G., Stockmaier, S. 2026. How do infections impact social relationships? Biology Letters, 22(3). PDF.

Mommer, L., Esser, H.J., van den Booren, S., Adelman, J.S., Bever, J.D., de Boer, W.F., Bron, G.M., Douma, J.C., Ezenwa, V.O., Halliday, F.W., Hersh, M.H., Keesing, F., van Ruijven, J., Sprong, H., Matson, K.D. 2026. Deconstructing host quality offers insights into disease ecology. Trends in Ecology & Evolution. PDF.

de Camargo, M.M., Gonçalves, A.C.F., Blazquez, D.N.H., Weber, M.E., Agostinho, W., Guha, Z.K., Fernandes, M.S., Furtado, M., Dollar, A., Brandão, P., Aksoy, S., Ezenwa, V.O., Zimmerman, D. 2026. An innovative tool for non-invasive contact-free pathogen monitoring in animal saliva. Ecosystems 1: 7. PDF.

Senso, B.C., Donaldson, J.E., Anderson, T.M., Trentinus, A., Ezenwa, V.O., Holdo, R.M. 2026. Environmental drivers of parasitic nematode infection in wild ungulates in the Serengeti National Park. International Journal for Parasitology, 104772. PDF.

Zilio, G., Duncan, A.B., Ezenwa, V.O., Fenton, A., Gjini, E., Kaltz, O., Magalhães, S., Michalakis, Y., Mideo, N., Pedersen, A., Taguchi, L., Tollenaere, C., Zélé, F., Dean, A.D. 2026. Co-circulation and co-infection: parasite interactions across scales. Trends in Ecology & Evolution. PDF.

Sabey, K.A., Keegan, S.P., LaVere, A.A., Richards, R.L., Seguel, M., Shearer, C.L., Warburton, E.M., Working, C.L., Sasaki, T., Ezenwa, V.O. 2026. Collective disruption: consequences of parasitism for collective animal behavior. Proceedings of the Royal Society B: Biological Sciences, 293(2063). PDF.

2025

Worsley-Tonks, K.E.L., Lance, S.L., Ezenwa, V.O. 2025. Contrasting study designs reveal nuance in heterozygosity-parasite associations in the wild. International Journal for Parasitology, 104763. PDF.

Rogers, W., Mattingly S.J., Kohles, J.E., Linek, N., Williams, H.J., Lenzi, I., Wilbs, G., Escher, M., Richter, N., Van Schalkwyk, O.L., Ezenwa, V.O., Wikelski, M., Dechmann, D.K.N., Wild, T.A. 2025. Fine-scale animal proximity detection and localization via multi-sensor biologgers. bioRxiv preprint. PDF.

Huang, Y.H., Ezenwa, V.O. 2025. Evaluating the contribution of individual variation in parasite-mediated anorexia to trophic cascades. Ecology 106 (9). PDF.

Kimaro, H.S., McIntyre, J., Ezenwa, V.O., Holdo, R.M., Donaldson, J., Hopcraft, J.G.C., Morrison, T.A. 2025. Disentangling transport and trophic effects of animals movement on environmental parasite abundance. International Journal for Parasitology. PDF.

Bever, J.D., Adelman, J.S., Eppinga, E.A., Ezenwa, V.O. 2025. Application of microbiome feedback theory to animals: can parasites drive coexistence in ungulate communities? Integrative And Comparative Biology. PDF.

Griffin, C.D., Ezenwa, V.O., Cowie, R.H. 2025. Insights into the biology of the rat lungworm, Angiostrongylus cantonensis. Parasites & Vectors 18 (1), 163. PDF.

Riddell, B., McDonough, M., Ferguson, A., Kimani, J.M., Gawriluk, T.R., Peng, C., Kiama, S.G., Ezenwa, V.O., Seifert, A.W. 2025. Complex tissue regeneration in Lophuromys reveals a phylogenetic signal for enhanced regenerative ability in deomyine rodents. Proceedings of the National Academy of Sciences. PDF.

2024

Sabey, K.A., Castro, A., Song, S.J., Knight, R., Ezenwa, V.O. 2024. Anthelmintic treatment reveals sex-dependent worm-gut microbiota interactions. Parasite Immunology. PDF.

Espejo, C., and Ezenwa, V.O. 2024. Extracellular vesicles: an emerging tool for wild immunology. Discovery Immunology. PDF.

Brown, R.P.B., Williams, A.E., Sabey, K.A., Onserio, A., Ewoi, J., Song, S.J., Knight, R., Ezenwa, V.O. 2024. Social behaviour mediates the microbiome response to antibiotic treatment in a wild mammal. Proceedings of the Royal Society B. PDF.

Kyriazakis, I., Arndt, C., Aubry, A., Charlier, J., Ezenwa, V.O., Godber, O.F., Krogh, M., Mostert, P.F., Orsel, K., Robinson, M.W., Ryan, F.S., Skuce, P.J., Takahashi, T., van Middelaar, C.E., Vigors, S., Morgan, E.R. 2024. Improve animal health to reduce livestock emissions: quantifying an open goal. Proceedings of the Royal Society B. PDF.

Wilson, C.A., Hernandez, S., Weil, J.N., Ezenwa, V.O., Altizer, S., Hall, R.J. 2024. Human-provided food Increases aggregation but does not change activity budgets in an urban wading bird. Journal of Ubarn Ecology. PDF.

Donaldson, J.E., Ezenwa, V.O., Morrison, T.A., Holdo, R.M. 2024. Effects of migratory animals on resident parasite dynamics. Trends in Ecology & Evolution. PDF.

2023

Beechler, B., Gorsich, E., Glidden, C., Jolles, A., Ezenwa, V.O. 2023. Host-Parasite Interactions in African Buffalo: A Community-Level Perspective. Ecology and Management of the African Buffalo, 11. LINK

Wild, T.A., van Schalkwyk, L., Viljoen, P., Heine, G., Richter, N., Vorneweg, B., Koblitz, J.C., Dechmann, D.K.N., Rogers, W., Partecke, J., Linek, N., Volkmer, T., Gregersen, T., Havmoller, R.W., Morelle, K., Diam, A., Wiesner, M., Wolter, K., Fiedler, W., Kays, R., Ezenwa, V.O., Meboldt, M., Wikelski, M. 2023.  A multi-species evaluation of digital wildlife monitoring using the Sigfox IoT network. Animal Biotelemetry 11, 13. PDF

Donaldson, J. E., Holdo, R. M., Anderson, T. M., Morrison, T. A., Hopcraft, J. G. C., McIntyre, J., Devaney, E., Hempson, G., Senso, B., Trentinus, A., Ezenwa, V. O. 2023. Direct and indirect effects of fire on parasites in an African savanna. Journal of Animal Ecology, 00, 1–10. PDF

Warburton, E.M., Budischak, S.A., Jolles, A.E., Ezenwa, V.O. 2023. Within‐host and external environments differentially shape β‐diversity across parasite life stages. Journal of Animal Ecology. PDF

Seguel, M., Budischak, S.A., Jolles, A.E., Ezenwa, V.O. 2023. Helminth-associated changes in host immune phenotype connect top-down and bottom-up interactions during co-infection. Functional Ecology. PDF

Richards, R.L., Conner, L.M., Morris, G., Drake, J.M., Ezenwa, V.O. 2023. Season and prey identity mediate the effect of predators on parasites in rodents: a test of the healthy herds hypothesis. Oecologia, 1-12. PDF

2022

Lakin, H.A., Tavalire, H., Sakamoto, K., Buss, P., Miller, M., Budischak, S.A., Raum, K., Ezenwa, V.O., Beechler, B., Jolles, A. 2022. Bovine tuberculosis in African buffalo (Syncerus caffer): Progression of pathology during infection. PLOS Neglected Tropical Diseases 16 (11), e0010906. PDF

Ezenwa, V.O., Altizer, S.M., Hall, R. 2022. Animal Behavior and Parasitism. Oxford University Press. LINK

Hawley, D.M. and Ezenwa, V.O. 2022. Parasites, host behavior, and their feedbacks. Animal Behavior and Parasitism, 15. LINK

Koltz, A.M., Civitello, D.J., Becker, D.J., Deem, S.L., Classen, A.T., Barton, B., Brenn-White, M., Johnson, Z.E., Kutz, S., Malishev, M., Preston, D.L., Vannatta, J.T., Penczykowski, R.M., Ezenwa, V.O. 2022. Sublethal effects of parasitism on ruminants can have cascading consequences for ecosystems. Proceedings of the National Academy of Sciences 119 (20), e2117381119. PDF

Richards R.L., Drake J.M., Ezenwa, V.O. 2022. Do predators keep prey healthy or make them sicker? A meta‐analysis. Ecology Letters. PDF

2021

Vinson, J.E., Park, A.W., Cleveland, C.A., Yabsley, M.J., Ezenwa, V.O., Hall, R.J. 2021. Alternative transmission pathways for guinea worm in dogs: implications for outbreak risk and control. International Journal for Parasitology. PDF

Tchouassi, D.P., Torto, B., Sang, R., Riginos, C., Ezenwa, V.O. 2021. Large herbivore loss has complex effects on mosquito ecology and vector‐borne disease risk. Transboundary and Emerging Diseases 68 (4), 2503-2513. PDF

Ezenwa, V.O., Civitello, D.J., Classen, A.T., Barton, B.T., Becker, D.J., Brenn-White, M., Deem, S.L., Kutz, S., Malishev, M., Penczykowski, R.M., Preston, D.L., Vannatta, J.T., Koltz, A.M. 2021. Response to Charlier et al.: Climate-Disease Feedbacks Mediated by Livestock Methane Emissions Are Plausible. Trends in ecology & evolution, S0169-5347 (21) 00105-1. PDF

LaVere, A.A., Hamlin, H.J., Lowers, R.H., Parrot, B.B., Ezenwa, V.O. 2021. Associations between testosterone and immune activity in alligators depend on bacteria species and temperature. Functional Ecology 35 (5), 1018-1027. PDF

Sabey, K.A., Song, S.J., Jolles, A., Knight, R., Ezenwa, V.O. 2021. Coinfection and infection duration shape how pathogens affect the African buffalo gut microbiota. The ISME Journal 15 (5), 1359-1371. PDF

Glidden, C.K., Coon, C.A.C., Beechler, B.R., McNulty, C., Ezenwa, V.O., Jolles, A.E. 2021. Co‐infection best predicts respiratory viral infection in a wild host. Journal of Animal Ecology 90 (3), 602-614. PDF

Briard, L., Ezenwa, V.O. 2021. Parasitism and host social behaviour: a meta-analysis of insights derived from social network analysis. Animal Behaviour 172, 171-182. PDF

Ezenwa, V.O., Budischak, S.A., Buss, P., Seguel, M., Luikart, G., Jolles, A.E., Sakamoto, K. 2021. Natural resistance to worms exacerbates bovine tuberculosis severity independently of worm coinfection. Proceedings of the National Academy of Sciences 118 (3). PDF

Ezenwa, V.O. 2021. Co-infection and nutrition: integrating ecological and epidemiological perspectives. In: Humphries, D.L., Scott, M.E., Vermund, S.H. (Eds) Nutrition and Infectious Diseases. Nutrition and Health. Humana, Cham.

2020

Ezenwa, V.O., Civitello, D.J., Classen, A.T., Barton, B.T., Becker, D.J., Brenn-White, M., Deem, S.L., Kutz, S., Malishev, M., Penczykowski, R.M., Preston, D.L., Vannatta, J.T., Koltz, A.M. 2020. Infectious diseases, livestock, and climate: a vicious cycle? Trends in Ecology & Evolution. PDF

Richards, R.L., Cleveland, C.A., Hall, R.J., Tchindebet Ouakou, P., Park, A.W., Ruiz-Tiben, E., Weiss, A., Yabsley, M.J., Ezenwa, V.O. 2020. Identifying correlates of Guinea worm (Dracunculus medinensis) infection in domestic dog populations. PLoS neglected tropical diseases 14 (9), e0008620. PDF

Gawriluk, T.R., Simkin, J., Hacker, C.K., Kimani, J.M., Kiama, S.G., Ezenwa, V.O., Seifert, A.W. 2020. Complex tissue regeneration in mammals is associated with reduced inflammatory cytokines and an influx of T cells. Frontiers in immunology 11, 1695. PDF

Shearer, C.L., Ezenwa, V.O. 2020. Rainfall as a driver of seasonality in parasitism. International Journal for Parasitology: Parasites and Wildlife 12, 8-12. PDF

Song, J. S., Sanders, J. G., Delsuc, F., Metcalf, J., Amato, K.,Taylor, M. W., Mazel, F., Lutz, H. L., Winker, K.,Graves, G. R., Humphrey, G., Gilbert, J. A., Hackett, S. J., White, K. P., Skeen, H. R., Kurtis, S. M., Withrow, J., Braile T., Miller, M., McCracken, K. G., Maley, J. M., Ezenwa, V. O., Williams, A., Blanton, J. M., McKenzie, V. J., Knight, R. 2020. Comparative Analyses of Vertebrate Gut Microbiomes Reveal Convergence between Birds and Bats. mBio, 11 (1) , e02901-19.  PDF

Abbate, J. L., Becquart, P., Leroy, E., Ezenwa, V. O. and Roche, B. 2020. Exposure to Ebola Virus and Risk for Infection with Malaria Parasites, Rural Gabon. Emerging Infectious Diseases, 26(2). PDF

Park, A. W. and Ezenwa, V. O. 2020. Characterizing interactions between co-infecting parasites using age-intensity profiles. International Journal for Parasitology. PDF

2019

Ezenwa, V.O., Jolles, A.E., Beechler, B.R.,  Budischak, S.A. and Gorsich, E.E. The causes and consequences of parasite interactions: African buffalo as a case study. In: Wilson, K., Fenton, A. Tompkins, D. (Eds) Wildlife Disease Ecology: Linking Theory to Data and Application. Cambridge University Press.

Seguel, M., Beechler, B. R., Coon, C. A., Snyder, P. W., Spaan, J. S., Jolles, A. E., and Ezenwa, V. O. 2019. Immune stability predicts tuberculosis infection risk in a wild mammal. Proceedings of the Royal Society of London B, PDF

Tavalire, H. F., Hoal E. G., le Roex, N., van Helden, P. D., Ezenwa, V. O., and Jolles, A. E. 2019. Risk alleles for tuberculosis infection associate with reduced immune reactivity in a wild mammalian host. Proceedings of the Royal Society B, 286. PDF

Beechler, B. R., Boersma, K. S., Buss, P. E., Coon, C. A. C, Gorsich, E. E, Henrichs, B. S., Siepielski, A. M., Spaan J. M., Spaan, R. S., Ezenwa, V. O., and Jolles, A. E. 2019. Bovine tuberculosis disturbs parasite functional trait composition in African buffalo. Proceedings of the National Academy of Sciences of the United States of America,116: (29) 14645-14650. PDF

Hodgkinson, J. E., Kaplan, R. M., Kenyon, F., Morgan, E. R., Park, A. W., Paterson, S., Babayan, S. A., Beesley, N. J., Britton C., Chaudhry, U., Doyle, S. R., Ezenwa, V. O., Fenton, A., Howell, S. B., Laing, R., Mable, B. K, Matthews, L., McIntyre, J., Milne, C. E., Morrison, T. A., Prentice, J. C., Sargison, N. D., Williams, D.J. L, Wolstenholme, A. J., Devaney, E. 2019. Refugia and anthelmintic resistance: Concepts and challenges. International Journal for Parasitology: Drugs and Drug Resistance, Volume 10: 51-57, ISSN 2211-3207. PDF

Spaan, R. S., Epps, C. W., Ezenwa, V. O., Jolles, A. E. 2019. Why did the buffalo cross the park? Resource shortages, but not infections, drive dispersal in female African buffalo (Syncerus caffer). Ecology and Evolution, 9: 5651– 5663. PDF

Cyr, J. L., Gawriluk, T. R., Kimani, J. M., Rada, B., Watford, W. T., Kiama, S. G., Seifert, A. W.,  Ezenwa, V. O. 2019. Regeneration-Competent and -Incompetent Murids Differ in Neutrophil Quantity and Function, Integrative and Comparative Biology, icz023. PDF

Stephens, P. R., Altizer, S., Ezenwa, V.O., Gittleman, J. L., Moan, E., Han, B., Huang, S., Pappalardo, P. 2019.  Parasite sharing in wild ungulates and their predators: Effects of phylogeny, range overlap, and trophic links. Journal of Animal Ecology, 88: 1017–1028. PDF

2018

Tavalire, H. F, Beechler, B. R., Buss, P. E, Gorsich, E. E., Hoal, E. G., le Roex, N., Spaan, J. M., Spaan, R. S., van Helden, P. D., Ezenwa, V. O., Jolles, A. E. 2018. Context‐dependent costs and benefits of tuberculosis resistance traits in a wild mammalian host. Ecology and Evolution, 8: 12712–12726. PDF

Dallas, T. A., Aguirre, A. A., Budischak, S., Carlson, C., Ezenwa, V. O., Han, B., Huang S., Stephens, P. R. 2018. Gauging support for macroecological patterns in helminth parasites. Global Ecology and Biogeography, 27: 1437–1447. PDF

Ezenwa, V. O. and Worsley-Tonks  K.E. L. 2018. Social living simultaneously increases infection risk and decreases the cost of infection. Proceedings of the Royal Society B, 286. PDF

Gorsich , E. E., Etienne, R. S., Medlock, J.,Beechler, B. R., Spaan, J. M., Spaan R. S., Ezenwa, V. O., Jolles, A. E. 2018. Opposite outcomes of coinfection at individual and population scales. Proceedings of the National Academy of Sciences,115 (29): 7545-7550. PDF

Abbate, J. L., Ezenwa, V. O., Guégan J. F., Choisy, M., Nacher, M., Roche, B. 2018. Disentangling complex parasite interactions: Protection against cerebral malaria by one helminth species is jeopardized by co-infection with another. PLOS Neglected Tropical Diseases, 12(5): e0006483. PDF

Budischak, S. A., O’Neal, D., Jolles, A. E., and Ezenwa, V. O. 2018. Differential host responses to parasitism shape divergent fitness costs of infection. Functional Ecology, 32: 324-333. PDF

2017

Beechler, B. R., Jolles, A. E., Budischak, S. A., Corstjens, P. L.A. M., Ezenwa, V. O., Smith, M., Spaan, R., van Dam, G. J., Steinauer, M. 2017. Host immunity, nutrition and coinfection alter longitudinal infection patterns of schistosomes in a free ranging African buffalo population. Plos Neglected Tropical Diseases, 11: e0006122. PDF

Thompson, L. R., Sanders, J. G., McDonald, D., Amir, A., Ladau, J., Locey, K. J., Prill, R. J., Tripathi, A., Gibbons, S. M., Ackermann, G., Navas-Molina, J. A., Janssen, S., Kopylova, E., Vázquez-Baeza, Y., González, A., Morton, J. T., Mirarab, S., Zech Xu, Z., Jiang, L., Haroon, M. F., Kanbar, J., Zhu, Q., Jin Song, S., Kosciolek, T., Bokulich, N. A., Lefler, J., Brislawn, C. J., Humphrey, G., Owens, S. M., Hampton-Marcell, J., Berg-Lyons, D., McKenzie, V., Fierer, N., Fuhrman, J. A., Clauset, A., Stevens, R. L., Shade, A., Pollard, K. S., Goodwin, K. D., Jansson, J. K., Gilbert, J. A., Knight R., The Earth Microbiome Project Consortium (including lab members, V. Ezenwa and A. Williams). 2017. A communal catalogue reveals Earth’s multiscale microbial diversity. Nature, 551: 457. PDF

Spaan, J., Pitts, N. Buss, P., Beechler, B. R., Ezenwa, V. O., Jolles, A. E. 2017. Non-invasive measures of stress response in African buffalo (Syncerus caffer) reveals an age-dependent stress response to immobilization. Journal of Mammology, 98: 1288-1300. PDF

Williams, A. E., Worsley-Tonks, K. L., Ezenwa, V. O. 2017.Drivers and consequences of variation in individual social connectivity. Animal Behaviour, 133: 1-9. PDF

Stephens, P. R., Pappalardo, P., Huang, S., Byers, J. E., Farrell, M. J., Gehman, A., Ghai, R. R., Haas, S. E., Han, B., Park, A., Schmidt, J. P., Altizer, S., Ezenwa, V. O., Nunn, C. L. 2017. Global Mammal Parasite Database version 2.0. Ecology, 98: 1476. PDF

Rajeev, M., M. Mutinda, Ezenwa, V. O. 2017. Pathogen exposure in cattle at the livestock-wildlife interface. EcoHealth, 14: 542-551. PDF

Austin, L. V., Budischak, S. A., Ramadhin, J., Hoberg, E. P., Abrams, A., Jolles, A. E., Ezenwa, V. O. 2017. A comparison of two methods for quantifying parasitic nematode fecundity. Parasitology Research, 116: 1597-1602. PDF

Hosseini, P. R., Mills, J. N., Prieur-Richard, A., Ezenwa, V. O., Bailly, X., Rizzoli, A., Suzán, G., Vittecoq, M., García-Peña, G. E., Daszak, P., Guégan, J-F., Roche, B. 2017. Does the impact of biodiversity differ between emerging and endemic pathogens? The need to separate the concepts of hazard and risk. Philosophical Transactions of the Royal Society of B, 372: 20160129. PDF

2016

Ezenwa, V. O., Ghai, R. R., McKay, A. F., Williams, A. E. 2016. Group living and pathogen infection revisited. Current Opinion in Behavioral Sciences, 12: 66-72. PDF

McKay, A. F., Ezenwa, V. O., Altizer, S. 2016. Consequences of food restriction for immune defense, parasite infection, and fitness in monarch butterflies. Physiological and Biochemical Zoology, 89: 389-401. PDF

Ezenwa, V. O. 2016. Helminth-microparasite co-infection in wildlife: lessons from ruminants, rodents, and rabbits. Parasite Immunology, 38: 527-534. PDF

Ghai, R. R., M. Mutinda, Ezenwa, V. O. 2016. Limited sharing of tick-borne hemoparasites between sympatric wild and domestic ungulates. Veterinary Parasitology, 226: 167-173. PDF

McKay, A. F, Ezenwa, V. O., and Altizer, S. 2016. Unravelling the costs of flight for immune defenses in the migratory monarch butterfly. Integrative and Comparative Biology, 56: 278-289. PDF

Stephens P. R., Altizer S., Smith K. F., Aguirre A. A., Brown J. H., Budischak S. A., Byers J. E., Davies J. T., Drake J. M., Ezenwa V. O., Farrell M. J., Gittleman J. L., Han B. A., Huang S., Hutchinson R. A., Johnson P., Nunn C. L., Onstad D., Park A. W., Vazquez-Prokopec G. M., Schmidt J. P., Poulin R. 2016. The macroecology of infectious diseases: a new perspective on global-scale drivers of pathogen distributions and impacts. Ecology Letters, 19: 1159-1171. PDF

Budischak, S. A., Hoberg, E., Abrams, A., Jolles, A. E., and Ezenwa, V. O. 2016. Experimental insight into the process of parasite community assembly. Journal of Animal Ecology, 85: 1222-1233. PDF

Ezenwa, V. O. and Snider, M. H. 2016. Reciprocal relationships between behavior and parasites suggest that negative feedback may drive flexibility in male reproductive behavior. Proceedings of the Royal Society of London B, 283: 20160423. PDF

Henrichs, B., Oosthuizen, M., Troskie, M., Gorsich, E., Gondhalekar, C., Beechler, B., Ezenwa, V. O., Jolles, A. 2016. Within guild co-infections influence parasite community membership: a longitudinal study in African Buffalo. Journal of Animal Ecology, 85:1025-1034. PDF

Ezenwa, V. O., Archie, E. A., Craft, M. E., Hawley, D. M., Martin, L. B., Moore, J., White, L. 2016. Host behavior-parasite feedback: an essential link between animal behavior and disease ecology. Proceedings of the Royal Society of London B, 283: 20153078. PDF

Gawriluk, T. R., Thompson, K. L., Clare-Salzler, Z., Kimani, J. M., Kiama, S. G., Smith, J., Ezenwa, V. O., and Seifert, A. W. 2016. Comparative analysis of earhole closure identifies regenerative ability as a discrete trait in mammals. Nature Communications, doi: 10.1038/ncomms11164. PDF

VanderWaal, K. L., and Ezenwa, V. O. 2016. Heterogeneity in pathogen transmission: mechanisms and methodology. Functional Ecology. PDF

2015

Young, H. S., Dirzo, R., Helgen, K. M., McCauley, D. J., Nunn, C. L., Snyder, P. W., Veblen, K. E., Zhao, S., Ezenwa, V. O. 2015. Large wildlife removal drives immune defence increases in rodents. Functional Ecology, 30: 799-807. PDF

Worsley-Tonks, K. and Ezenwa, V. O. 2015. Anthelmintic treatment affects behavioural time allocation in a free-ranging ungulate. Animal Behavior, 108: 47-54. PDF

Ezenwa, V. O., Prieur-Richard, A., Roche, B., Bailly, X., Becquart, P., García-Peña, G. E., Hosseini, P. R., Keesing, F., Rizzoli, A., Suzán, G., Vignuzzi, M., Vittecoq, M., Mills, J. N., Guégan, J-F. 2015. Interdisciplinarity and Infectious Diseases: An Ebola Case Study. PLoS Pathogens 11: e100499. PDF

Hooge, J., Howe, L., and Ezenwa, V. O. 2015. Identification of novel Theileria genotypes from Grant’s gazelle. International Journal for Parasitology: Parasites and Wildlife, 4: 239-243. PDF

Snyder, P. W., Hogg, J. T., Ezenwa, V. O. 2015. Comparison of the FLOTAC and Baermann techniques for quantifying lungworm larvae in wild bighorn sheep feces, Journal of Wildlife Diseases, 51: 843-848. PDF

Beechler, B. R., Manore, C., Reninghaus, B., O’Neal, D., Gorsich, E., Ezenwa, V. O., Jolles, A. E. 2015. Enemies and Turncoats: bovine tuberculosis exposes pathogenic potential of Rift Valley fever virus in a common host African Buffalo. Proceedings of the Royal Society of London B, 282. PDF

Gorsich, E. E., Ezenwa, V. O., Cross, P. C., Bengis, R. G., and Jolles, A. E. 2015. Context-dependent survival, fecundity, and predicted population-level consequences of brucellosis in African buffalo. Journal of Animal Ecology, 84: 999-1009. PDF

Budischak, S. A., K. Sakamoto, L. Megow, K. Cumming, J. Urban, Ezenwa, V. O. 2015. Resource limitation alters the consequences of co-infection for both hosts and parasites. International Journal for Parasitology, 45: 455-463. PDF

Budischak, S. A., Hoberg E., Abrams, A., Jolles, A.E., and Ezenwa, V. O. 2015. A combined parasitological molecular approach for non-invasive characterization of parasite communities in wild hosts. Molecular Ecology Resources, 15: 1112-1119. PDF

Ezenwa, V. O. and Jolles, A. E. 2015. Opposite effects of anthelmintic treatment on microbial infection at individual vs. population scales. Science, 347: 175-177 (Faculty 1000 Recommended). PDF

Worsley-Tonks, K., Lance, S., Beasley, R., Jones, K., Ezenwa, V. O. 2015. Development and characterization of 30 novel microsatellite markers for Grant’s gazelle (Nanger granti). Conservation Genetics Resources, 7: 219-221. PDF

Lane-deGraaf, K., Amish, S., Gardipee, F., Jolles, A., Luikart, G., Ezenwa, V. O. 2015. Signatures of natural and unnatural selection: evidence from an immune system gene in African buffalo. Conservation Genetics, 16: 289-300. PDF

Jolles, A. E., and Ezenwa, V. O. 2015. Ungulates as model systems for the study of disease processes in natural populations. Journal of Mammalogy, 96: 4-15. PDF

Gorsich, E. E., Bengis, R. G., Ezenwa, V. O., Jolles, A. E. 2015. Evaluation of the sensitivity and specificity of an ELISA for diagnosing brucellosis in African buffalo (Syncerus caffer). Journal of Wildlife Diseases, 51: 9-18. PDF

Beechler, B. R., Bengis, R., Swanepoel, R., Paweska, J. T., Kemp, A., Jansen van Vuren, P., Joubert, J., Ezenwa, V. O., Jolles, A. E. 2015. Rift Valley Fever in Kruger National Park: Do Buffalo Play a Role in the Inter-Epidemic Circulation of Virus? Transboundary and Emerging Disease, 62: 24-32. PDF

2014

Ezenwa, V. O. and  Williams, A. E. 2014. Microbes and animal olfactory communication: where do we go from here? BioEssays, 36: 847-854. PDF

Gorsich, E. E., Ezenwa, V. O., Jolles, A. E. 2014. Nematode–coccidia parasite co-infections in African buffalo: Epidemiology and associations with host condition and pregnancy. International Journal for Parasitology: Parasites and Wildlife , 3: 124-134. PDF

Nunn, C. L., Brezine, C., Jolles, A. E., Ezenwa, V. O. 2014. Interactions between micro- and macro-parasites predict microparasite species richness across primates. American Naturalist, 183(4): 494-505. PDF

Fratto, M. E., Ezenwa, V. O., Davis, A. K. 2014. Infection with Mycoplasma gallisepticum buffers the effects of acute stress on innate immunity in house finches. Physiological and Biochemical Zoology, 87(2): 257-264. PDF

2013

Beechler, B. R., Bengis, R., Swanepoel, R., Paweska, J. T., Kemp, A., Jansen van Vuren, P., Joubert, J., Ezenwa, V. O., Jolles, A. E. 2013. Rift Valley Fever in Kruger National Park: Do Buffalo Play a Role in the Inter-Epidemic Circulation of Virus? Transboundary and Emerging Diseases. PDF

Godsey, M. S., King, R. J., Burkhalter, K., Delorey, M., Colton, L., Charnetzky, D., Sutherland, G., Ezenwa, V. O., Wilson, L. A., Coffey, M., Milheim, L., Taylor, V. G., Palmisano, C., Wesson, D., Guptill, S. C. 2013. Ecology of potential vectors of West Nile virus in southeastern Louisiana: enzootic transmission in the relative absence of Culex quinquefasciatus. The American Journal of Tropical Medicine and Hygiene, 88(5): 986-996. PDF

Anderson, K., Ezenwa, V. O., Jolles, A. E. 2013. Tick infestation patterns in free ranging African buffalo (Syncerus caffer): Effects of host innate immunity and niche segregation among tick species. International Journal for Parasitology: Parasites and Wildlife, 2: 1-9. PDF

2012

Budischak, S. A., Jolles, A. E., Ezenwa, V. O. 2012. Direct and indirect costs of co-infection in the wild: Linking gastrointestinal parasite communities, host hematology, and immune function. International Journal for Parasitology: Parasites and Wildlife, 1: 2-12. PDF

Ezenwa, V. O., Gerardo, N. M., Inouye, D. W., Medina, M., Xavier, J. B. 2012. Animal behavior and the microbiome. Science, 338: 198-199. PDF

Beechler, B. R., Broughton, H., Bell, A., Ezenwa, V. O., Jolles, A. E. 2012. Innate Immunity in Free-Ranging African Buffalo (Syncerus caffer): Associations with Parasite Infection and White Blood Cell Counts. Physiological and Biochemical Zoology, 85(3):255-64. PDF

Ogada, D. L., Torchin, M. E., Kinnaird, M. K., Ezenwa, V. O. 2012. Effects of Vulture Declines on Facultative Scavengers and Potential Implications for Mammalian Disease Transmission. Conservation Biology, 26, 453–460. PDF

Ezenwa, V. O., Ekernas, L. S., Creel, S. 2012. Unraveling complex associations between testosterone and parasite infection in the wild. Functional Ecology, 26: 123-133. PDF

Nelson, B., Hebblewhite, M., Ezenwa, V .O., Shury, T., Merrill, E. H., Paquet, P. C., Schmiegelow, F., Seip, D., Skinner, G., and Webb, N. 2012. Prevalence of antibodies to canine parvovirus and distemper virus in wolves in the Canadian rocky mountains. Journal of Wildlife Diseases, 48: 68-76. PDF

2011

Ezenwa, V. O. and Jolles, A. E. 2011. From host immunity to pathogen invasion: The effects of helminth coinfection on the dynamics of microparasites? Integrative and Comparative Biology, 540-551. PDF

Hawley, D. M., Etienne, R. S., Ezenwa, V. O., Jolles, A. E. 2011. Does animal behavior underlie covariation between host exposure and susceptibility to infection? implications for disease dynamics. Integrative and Comparative Biology, 51: 528-539. PDF

Nunn, C. L., Ezenwa, V. O., Arnold, C., and Koenig, W. D. 2011. Mutualism or parasitism? Using a phylogenetic approach to characterize the oxpecker-ungulate interaction. Evolution, 65: 1297-1304. PDF

Archie, E. A. and Ezenwa, V. O. 2011. Population genetic structure and history of a generalist parasite infecting multiple sympatric host species. International Journal for Parasitology, 41: 89-98. PDF

2010

Ezenwa, V. O., Etienne, R. S., Luikart, G., Beja-Pereira, A. and Jolles, A. E. 2010. Hidden consequences of living in a wormy world: nematode-induced immune suppression facilitates TB invasion in African buffalo. American Naturalist, 176: 613-624. PDF

Ezenwa, V. O., Hines, A. M., Archie, E. A., Hoberg, E. P., Asmundsson, I. M., and J. T. Hogg. 2010. Muellerius capillaris dominates the lungworm community of bighorn sheep at the National Bison Range, Montana. Journal of Wildlife Diseases, 46: 988-993. PDF

2009

Pongsiri, M. J., Roman, J, Ezenwa, V. O., Goldberg, T. L., Koren, H., Newbold, S., Ostfeld, R. S., Pattanayak, S., and Salked, D. J. 2009. Biodiversity loss and the new global disease ecology, Bioscience, 59: 945-954. PDF

Archie, E. A., Luikart, G., and Ezenwa, V. O. 2009. Infecting epidemiology with genetics: a new frontier in disease ecology. Trends in Ecology & Evolution, 24: 21-30. PDF

Beechler, B. R., Jolles, A. E. and Ezenwa, V. O. 2009. Evaluation of hematological values in free ranging African buffalo (Syncerus caffer). Journal of Wildlife Diseases, 45: 57-66. PDF

Ezenwa, V. O., Jolles, A. E. and  O’Brien, M. 2009. A reliable body condition scoring technique for estimating condition in African buffalo. African Journal of Ecology, 47: 476-481. PDF

2008

Ezenwa, V. O. and A. E. Jolles. 2008. Horns honestly advertise parasite infection in male and female African buffalo, Animal Behaviour, 75:2013-2021. PDF

Jolles, A. E., Ezenwa, V. O., Etienne, R., Turner, W. and H. Olff. 2008. Interactions between macroparasites and microparasites drive patterns of infection in free-ranging African buffalo. Ecology, 89:2239-2250. PDF

Luikart, G., Pilgrim, K., Visty, J., Ezenwa, V. O., and M. K. Schwartz. 2008. Candidate gene microsatellite variation is associated with parasitism in wild bighorn sheep. Biology Letters, 4: 228-231. PDF

Hoberg, E. P., Abrams, A. and Ezenwa, V. O. 2008. An exploration of diversity among the Ostertagiinae (Nematoda: Trichostrongyloidea) in ungulates from sub-saharan Africa with a proposal for a new genus. Journal of Parasitology, 94: 230-251. PDF

Deem, S. L., Ezenwa, V. O., Ward, J. R and Wilcox, B. O. 2008. Research frontiers in infectious disease ecology: an interdisciplinary agenda for a changing world. In: R. Ostfeld, F. Keesing & V. Eviner (Eds) Infectious Disease Ecology: Effects of Disease on Ecosystems and Ecosystems on Disease. Princeton University Press.

2007 and earlier

Hines, A. M., Ezenwa, V. O., Cross, P. and J. D. Rogerson. 2007. Effects of supplemental feeding on gastrointestinal parasite infection in elk: preliminary observations. Veterinary Parasitology, 148: 350-355. PDF

Ezenwa, V. O., Milheim, L. E., Coffey, M. F., Godsey, M. S., King, R. J. and Guptill, S. C. 2007. Land cover variation and West Nile virus prevalence: patterns, processes and implications for disease control. Vector-Borne and Zoonotic Diseases, 7: 173-180. PDF

Ezenwa, V. O., Price S. A., Altizer, S., Vitone, N. D. and Cook, K. C.  2006. Host traits and parasite species richness in even and odd-toed mammals (Artiodactyla and Perissodactyla). Oikos, 115: 526-536. PDF

Ezenwa, V. O., Godsey, M. S., King, R. J. and Guptill, S.C. 2006. Avian diversity and West Nile virus: testing associations between biodiversity and infectious disease risk. Proceedings of the Royal Society of London B, 273: 109-117. PDF

Ezenwa, V. O. 2004. Interactions among host diet, nutritional status and gastrointestinal parasite infection in wild bovids. International Journal for Parasitology, 34: 535-542. PDF

Ezenwa, V. O. 2004. Host social behavior and parasitic infection: a multifactorial approach. Behavioral Ecology, 15: 446-454. PDF

Ezenwa, V. O. 2004. Reserve characteristics predict parasite infection rates of impala (Aepyceros melampus) in fenced game reserves. Biological Conservation, 118: 397-401. PDF

Ezenwa, V. O. 2004. Selective defecation and selective foraging: antiparasite behavior in wild ungulates? Ethology, 110: 851-862. PDF

Ezenwa, V. O. 2003. Habitat overlap and gastrointestinal parasitism in sympatric African bovids. Parasitology, 126: 379-388. PDF

Altizer, S., Nunn, C. L., Thrall, P. H., Gittleman, J. L., Antonovics, J., Cunnningham, A. A., Dobson, A. P., Ezenwa, V. O., Jones, K. E., Pedersen, A. B., Poss, M. and  Pulliam, J.R. C. 2003. Social organization and parasite risk in mammals: integrating theory and empirical studies. Annual Review of Ecology, Evolution & Systematics, 34: 517-545. PDF

Ezenwa, V. O. 2003. The effects of time of day on the prevalence of coccidian oocysts in antelope fecal samples. African Journal of Ecology, 41: 192-193. PDF

Ezenwa, V. O., Peters, J. M., Zhu, Y., Arevalo, E. A., Hastings, M. D., Seppa, P.,Zacchi, F. Queller, D. C., and Strassmann, J. E. 1998. Ancient conservation of trinucleotide microsatellite loci in polistine wasps. Molecular Phylogenetics and Evolution 10: 168-177. PDF

Ezenwa, V. O., Henshaw, M.,Queller, D. C., and Strassmann, J. E. 1998. Patterns of buzz running, a preswarming behavior in the neotropical wasp, Parachartergus colobopterus. Insectes Sociaux 45: 445-456. PDF