Parasite Removal Improves Reproductive Success of Female North American Red Squirrels (Tamiasciurus hudsonicus)

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Abstract

In order to evaluate potential reproductive costs associated with parasitism, we experimentally removed ectoparasites from reproductive female North American red squirrels (Tamiasciurus hudsonicus). Body mass and overwinter survival of mothers, days to juvenile emergence, juvenile survival from birth to emergence, and body mass of juveniles at emergence were all compared to those of untreated (control) animals. Ectoparasite removal did not affect the body mass of mothers throughout the lactation period and overwinter survival of mothers did not differ between treatments and controls. Likewise, there was no effect of treatment on the number of days to juvenile emergence. However, treated mothers raised offspring that were significantly heavier (11%) than controls at emergence. Juveniles from treated mothers were also 24% more likely to survive from birth to emergence. Our results indicate that ectoparasites impose costs on the reproductive success of female red squirrels and that ectoparasites have the potential to influence red squirrel life-histories and population dynamics. © 2013 Patterson et al.

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APA

Patterson, J. E. H., Neuhaus, P., Kutz, S. J., & Ruckstuhl, K. E. (2013). Parasite Removal Improves Reproductive Success of Female North American Red Squirrels (Tamiasciurus hudsonicus). PLoS ONE, 8(2). https://doi.org/10.1371/journal.pone.0055779

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