Parasite infection and host dynamics in a naturally fluctuating rodent population

Winternitz J, Yabsley MJ, Altizer SM (2012)
Canadian Journal of Zoology 90(9): 1149-1160.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Winternitz, JamieUniBi ; Yabsley, M.J.; Altizer, S.M.
Abstract / Bemerkung
Parasites can both influence and be affected by host population dynamics, and a growing number of case studies support a role for parasites in causing or amplifying host population cycles. In this study, we examined individual and population predictors of gastrointestinal parasitism on wild cyclic montane voles ( Microtus montanus (Peale, 1848)) to determine if evidence was consistent with theory implicating parasites in population cycles. We sampled three sites in central Colorado for the duration of a multiannual cycle and recorded the prevalence and intensity of directly transmitted Eimeria Schneider, 1875 and indirectly transmitted cestodes from a total of 267 voles. We found significant associations between host infection status, individual traits (sex, age, and reproductive status) and population variables (site, trapping period, and population density), including a positive association between host density and cestode prevalence, and a negative association between host density and Eimeria prevalence. Both cestode and Eimeria intensity correlated positively with host age, reproductive status, and population density, but neither parasite was associated with poorer host condition. Our findings suggest that parasites are common in this natural host, but determining their potential to influence montane vole cycles requires future experimental studies and long-term monitoring to determine the fitness consequences of infection and the impact of parasite removal on host dynamics.
Erscheinungsjahr
2012
Zeitschriftentitel
Canadian Journal of Zoology
Band
90
Ausgabe
9
Seite(n)
1149-1160
ISSN
0008-4301
eISSN
1480-3283
Page URI
https://pub.uni-bielefeld.de/record/2950950

Zitieren

Winternitz J, Yabsley MJ, Altizer SM. Parasite infection and host dynamics in a naturally fluctuating rodent population. Canadian Journal of Zoology. 2012;90(9):1149-1160.
Winternitz, J., Yabsley, M. J., & Altizer, S. M. (2012). Parasite infection and host dynamics in a naturally fluctuating rodent population. Canadian Journal of Zoology, 90(9), 1149-1160. doi:10.1139/z2012-083
Winternitz, J., Yabsley, M. J., and Altizer, S. M. (2012). Parasite infection and host dynamics in a naturally fluctuating rodent population. Canadian Journal of Zoology 90, 1149-1160.
Winternitz, J., Yabsley, M.J., & Altizer, S.M., 2012. Parasite infection and host dynamics in a naturally fluctuating rodent population. Canadian Journal of Zoology, 90(9), p 1149-1160.
J. Winternitz, M.J. Yabsley, and S.M. Altizer, “Parasite infection and host dynamics in a naturally fluctuating rodent population”, Canadian Journal of Zoology, vol. 90, 2012, pp. 1149-1160.
Winternitz, J., Yabsley, M.J., Altizer, S.M.: Parasite infection and host dynamics in a naturally fluctuating rodent population. Canadian Journal of Zoology. 90, 1149-1160 (2012).
Winternitz, Jamie, Yabsley, M.J., and Altizer, S.M. “Parasite infection and host dynamics in a naturally fluctuating rodent population”. Canadian Journal of Zoology 90.9 (2012): 1149-1160.

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