Large wildlife removal drives immune defence increases in rodents Public Deposited

http://ir.library.oregonstate.edu/concern/articles/cr56n2857

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The article is copyrighted by the authors and the British Ecological Society. It is published by John Wiley & Sons, Inc. It can be found at:  http://onlinelibrary.wiley.com/journal/10.1111/%28ISSN%291365-2435/

Data deposited in the Dryad Digital Repository  http://dx.doi.org/10.5061/dryad.j1t67 (Young et al. 2015a).

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  • 1. Anthropogenic disturbances involving land use change, climate disruption, pollution and invasive species have been shown to impact immune function of wild animals. These immune changes have direct impacts on the fitness of impacted animals and, also, potentially indirect effects on other species and on ecological processes, notably involving the spread of infectious disease. Here, we investigate whether the selective loss of large wildlife can also drive changes in immune function of other consumer species. 2. Using a long-standing large-scale exclosure experiment in East Africa, we investigated the effects of selective removal of large wildlife on multiple measures of immune function in the dominant small rodent in the system, the East African pouched mouse, Saccostomus mearnsi. 3. We find support for a general increase in immune function in landscapes where large wildlife has been removed, but with some variation across immune parameters. These changes may be mediated in part by increased pathogen pressure in plots where large wildlife has been removed due to major increases in rodent density in such plots, but other factors such as changes in food resources are also likely involved. 4. Overall, our research reveals that the elimination of large-bodied wildlife – now recognized as another major form of global anthropogenic change – may have cascading effects on immune health, with the potential for these effects to also impact disease dynamics in ecological communities.
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  • Young, H. S., Dirzo, R., Helgen, K. M., McCauley, D. J., Nunn, C. L., Snyder, P., ... & Ezenwa, V. O. (2016). Large wildlife removal drives immune defence increases in rodents. Functional Ecology, 30(5), 799-807. doi:10.1111/1365-2435.12542
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  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2016-06-16T16:29:34Z No. of bitstreams: 3 YoungLargeWildlifeRemoval.pdf: 255471 bytes, checksum: 8d2b8973133e91dfba8c87a1b1215635 (MD5) YoungLargeWildlifeRemovalLaySummary.pdf: 125251 bytes, checksum: 1ed0529b8a19a4ff27a76826117195d9 (MD5) YoungLargeWildlifeRemovalMethodsS1.pdf: 37165 bytes, checksum: da76d12d1d960535cc1811b7f0118d3c (MD5)
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