Life History and Demographic Drivers of Reservoir Competence for Three Tick-Borne Zoonotic Pathogens Public Deposited

http://ir.library.oregonstate.edu/concern/articles/hh63sx63d

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  • Animal and plant species differ dramatically in their quality as hosts for multi-host pathogens, but the causes of this variation are poorly understood. A group of small mammals, including small rodents and shrews, are among the most competent natural reservoirs for three tick-borne zoonotic pathogens, Borrelia burgdorferi, Babesia microti, and Anaplasma phagocytophilum, in eastern North America. For a group of nine commonly-infected mammals spanning >2 orders of magnitude in body mass, we asked whether life history features or surrogates for (unknown) encounter rates with ticks, predicted reservoir competence for each pathogen. Life history features associated with a fast pace of life generally were positively correlated with reservoir competence. However, a model comparison approach revealed that host population density, as a proxy for encounter rates between hosts and pathogens, generally received more support than did life history features. The specific life history features and the importance of host population density differed somewhat between the different pathogens. We interpret these results as supporting two alternative but non-exclusive hypotheses for why ecologically widespread, synanthropic species are often the most competent reservoirs for multi-host pathogens. First, multi-host pathogens might adapt to those hosts they are most likely to experience, which are likely to be the most abundant and/or frequently bitten by tick vectors. Second, species with fast life histories might allocate less to certain immune defenses, which could increase their reservoir competence. Results suggest that of the host species that might potentially be exposed, those with comparatively high population densities, small bodies, and fast pace of life will often be keystone reservoirs that should be targeted for surveillance or management.
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  • Ostfeld, R. S., Levi, T., Jolles, A. E., Martin, L. B., Hosseini, P. R., et al. (2014). Life History and Demographic Drivers of Reservoir Competence for Three Tick-Borne Zoonotic Pathogens. PLoS ONE, 9(9), e107387. doi:10.1371/journal.pone.0107387
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  • description.provenance : Made available in DSpace on 2014-11-10T22:04:18Z (GMT). No. of bitstreams: 3 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) LeviTaalFisheriesWildlifeLifeHistoryDemographic.pdf: 696902 bytes, checksum: 27733af57e88bbadd5e5c43074d65090 (MD5) LeviTaalFisheriesWildlifeLifeHistoryDemographic_SupportingInformation.zip: 208530 bytes, checksum: 9a7d209f317e5ebe91bb839eb0888f37 (MD5) Previous issue date: 2014-09-18
  • description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2014-11-10T22:04:18Z (GMT) No. of bitstreams: 3 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) LeviTaalFisheriesWildlifeLifeHistoryDemographic.pdf: 696902 bytes, checksum: 27733af57e88bbadd5e5c43074d65090 (MD5) LeviTaalFisheriesWildlifeLifeHistoryDemographic_SupportingInformation.zip: 208530 bytes, checksum: 9a7d209f317e5ebe91bb839eb0888f37 (MD5)
  • description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2014-11-10T22:03:59Z No. of bitstreams: 3 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) LeviTaalFisheriesWildlifeLifeHistoryDemographic.pdf: 696902 bytes, checksum: 27733af57e88bbadd5e5c43074d65090 (MD5) LeviTaalFisheriesWildlifeLifeHistoryDemographic_SupportingInformation.zip: 208530 bytes, checksum: 9a7d209f317e5ebe91bb839eb0888f37 (MD5)

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