Grzeda, Emily Maurer, Taylor Dannemann, Clara Kibiriti, Lemaly Ole Kioko, John and Kiffner, Christian 2017. Effects of acaricide treatment and host intrinsic factors on tick acquisition and mortality in Boran cattle. Parasitology Research,
Sol, Arias María Gerardo, Pajares Natividad, Díez-Baños Ana, Pérez-Creo Alberto, Prieto Pablo, Díez-Baños and Patrocinio, Morrondo 2016. Cephenemyiosis, an emergent myiasis in roe deer (Capreolus capreolus) from northwestern Spain. Parasitology Research, Vol. 115, Issue. 12, p. 4605.
Carlsson, A. M. Mastromonaco, G. Vandervalk, E. and Kutz, S. 2016. Parasites, stress and reindeer: infection with abomasal nematodes is not associated with elevated glucocorticoid levels in hair or faeces. Conservation Physiology, Vol. 4, Issue. 1, p. cow058.
Ezenwa, Vanessa O. and Snider, Matthew H. 2016. Reciprocal relationships between behaviour and parasites suggest that negative feedback may drive flexibility in male reproductive behaviour. Proceedings of the Royal Society B: Biological Sciences, Vol. 283, Issue. 1831, p. 20160423.
Warwick, Benjamin T. Bak, Emma Baldassarre, Julia Gregg, Emily Martinez, Rikki Kioko, John Saning’o, Kimirei and Kiffner, Christian 2016. Abundance estimations of ixodid ticks on Boran cattle and Somali sheep in Northern Tanzania. International Journal of Acarology, Vol. 42, Issue. 1, p. 12.
Hou, Ching-Ho Shaner, Pei-Jen L. Hsiao, Chun-Jui Lin, Yu-Teh K. and Manser, M. 2016. Environmental Parasitism Risk and Host Infection Status Affect Patch Use in Foraging Wild Mice. Ethology, Vol. 122, Issue. 9, p. 717.
Davidson, Rebecca K. Ličina, Tina Gorini, Lucrezia and Milner, Jos M. 2015. Endoparasites in a Norwegian moose (Alces alces) population – Faunal diversity, abundance and body condition. International Journal for Parasitology: Parasites and Wildlife, Vol. 4, Issue. 1, p. 29.
Lovari, S. Ferretti, F. Corazza, M. Minder, I. Troiani, N. Ferrari, C. and Saddi, A. 2014. Unexpected consequences of reintroductions: competition between reintroduced red deer and Apennine chamois. Animal Conservation, Vol. 17, Issue. 4, p. 359.
Avgar, T. Street, G. and Fryxell, J.M. 2014. On the adaptive benefits of mammal migration1. Canadian Journal of Zoology, Vol. 92, Issue. 6, p. 481.
Gorsich, Erin E. Ezenwa, Vanessa O. and Jolles, Anna 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, Vol. 3, Issue. 2, p. 124.
Kutz, Susan J. Hoberg, Eric P. Molnár, Péter K. Dobson, Andy and Verocai, Guilherme G. 2014. A walk on the tundra: Host–parasite interactions in an extreme environment. International Journal for Parasitology: Parasites and Wildlife, Vol. 3, Issue. 2, p. 198.
Brambilla, Alice von Hardenberg, Achaz Kristo, Ornella Bassano, Bruno and Bogliani, Giuseppe 2013. Don't spit in the soup: faecal avoidance in foraging wild Alpine ibex, Capra ibex. Animal Behaviour, Vol. 86, Issue. 1, p. 153.
Pachkowski, M. Côté, S.D. and Festa-Bianchet, M. 2013. Spring-loaded reproduction: effects of body condition and population size on fertility in migratory caribou (Rangifer tarandus). Canadian Journal of Zoology, Vol. 91, Issue. 7, p. 473.
Steele, Jillian Orsel, Karin Cuyler, Christine Hoberg, Eric P. Schmidt, Niels M. and Kutz, Susan J. 2013. Divergent parasite faunas in adjacent populations of west Greenland caribou: Natural and anthropogenic influences on diversity. International Journal for Parasitology: Parasites and Wildlife, Vol. 2, p. 197.
Raundrup, Katrine Al-Sabi, Mohammad Nafi Solaiman and Kapel, Christian Moliin Outzen 2012. First record of Taenia ovis krabbei muscle cysts in muskoxen from Greenland. Veterinary Parasitology, Vol. 184, Issue. 2-4, p. 356.
Wilson, Ryan R. Prichard, Alexander K. Parrett, Lincoln S. Person, Brian T. Carroll, Geoffry M. Smith, Melanie A. Rea, Caryn L. Yokel, David A. and Getz, Wayne M. 2012. Summer Resource Selection and Identification of Important Habitat Prior to Industrial Development for the Teshekpuk Caribou Herd in Northern Alaska. PLoS ONE, Vol. 7, Issue. 11, p. e48697.
Witter, Leslie A. Johnson, Chris J. Croft, Bruno Gunn, Anne and Gillingham, Michael P. 2012. Behavioural trade-offs in response to external stimuli: time allocation of an Arctic ungulate during varying intensities of harassment by parasitic flies. Journal of Animal Ecology, Vol. 81, Issue. 1, p. 284.
Hoberg, Eric P. Abrams, Arthur Pilitt, Patricia A. and Kutz, Susan J. 2012. Discovery and Description of the “Davtiani” Morphotype for Teladorsagia boreoarcticus (Trichostrongyloidea: Ostertagiinae) Abomasal Parasites In Muskoxen, Ovibos moschatus, and Caribou, Rangifer tarandus, from the North American Arctic: Implications for Parasite Faunal Diversity. Journal of Parasitology, Vol. 98, Issue. 2, p. 355.
Joly, Kyle Klein, David R. Verbyla, David L. Rupp, T. Scott and Chapin, F. Stuart 2011. Linkages between large-scale climate patterns and the dynamics of Arctic caribou populations. Ecography, Vol. 34, Issue. 2, p. 345.
Macroparasites potentially play a significant but often ignored role in the ecology and dynamics of wild ruminant populations. In the Arctic, parasites may impact on host populations by exacerbating the effects of seasonal and limited forage availability on the condition, fecundity and survival of individuals. We studied the effects of abomasal nematode parasites and warble flies, Hypoderma tarandi, on condition and pregnancy of caribou Rangifer tarandus in the Dolphin-Union herd, Nunavut, Canada. By the end of winter, female caribou over 2 years old showed a significant decrease in body weight with increasing nematode burden, and a decrease in back fat depth with increasing warble abundance. These effects were exaggerated in the non-pregnant fraction of the population. High warble larvae burdens were also associated with significantly reduced probability of being pregnant. Our research demonstrates a negative relationship between parasites and caribou condition that may have consequences for their fitness. Additionally, we discuss the possibility that muskox Ovibos moschatus share some parasite species with the caribou and could lead to elevated burdens in the sympatric host. Parasites may have been a contributory factor in a previous winter range-shift of the caribou herd and this may reflect a form of apparent competition between the two ungulate species.
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