Local host specialization, host-switching, and dispersal shape the regional distributions of avian haemosporidian parasites

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Local host specialization, host-switching, and dispersal shape the regional distributions of avian haemosporidian parasites. / Ellis, Vincenzo A.; Collins, Michael D.; Medeiros, Matthew C.I.; Sari, Eloisa H R; Coffey, Elyse D.; Dickerson, Rebecca C.; Lugarini, Camile; Stratford, Jeffrey A.; Henry, Donata R.; Merrill, Loren; Matthews, Alix E.; Hanson, Alison A.; Roberts, Jackson R.; Joyce, Michael; Kunkel, Melanie R.; Ricklefs, Robert E.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 112, No. 36, 08.09.2015, p. 11294-11299.

Research output: Contribution to journalArticle

Harvard

Ellis, VA, Collins, MD, Medeiros, MCI, Sari, EHR, Coffey, ED, Dickerson, RC, Lugarini, C, Stratford, JA, Henry, DR, Merrill, L, Matthews, AE, Hanson, AA, Roberts, JR, Joyce, M, Kunkel, MR & Ricklefs, RE 2015, 'Local host specialization, host-switching, and dispersal shape the regional distributions of avian haemosporidian parasites', Proceedings of the National Academy of Sciences of the United States of America, vol. 112, no. 36, pp. 11294-11299. https://doi.org/10.1073/pnas.1515309112

APA

CBE

Ellis VA, Collins MD, Medeiros MCI, Sari EHR, Coffey ED, Dickerson RC, Lugarini C, Stratford JA, Henry DR, Merrill L, Matthews AE, Hanson AA, Roberts JR, Joyce M, Kunkel MR, Ricklefs RE. 2015. Local host specialization, host-switching, and dispersal shape the regional distributions of avian haemosporidian parasites. Proceedings of the National Academy of Sciences of the United States of America. 112(36):11294-11299. https://doi.org/10.1073/pnas.1515309112

MLA

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Author

Ellis, Vincenzo A. ; Collins, Michael D. ; Medeiros, Matthew C.I. ; Sari, Eloisa H R ; Coffey, Elyse D. ; Dickerson, Rebecca C. ; Lugarini, Camile ; Stratford, Jeffrey A. ; Henry, Donata R. ; Merrill, Loren ; Matthews, Alix E. ; Hanson, Alison A. ; Roberts, Jackson R. ; Joyce, Michael ; Kunkel, Melanie R. ; Ricklefs, Robert E. / Local host specialization, host-switching, and dispersal shape the regional distributions of avian haemosporidian parasites. In: Proceedings of the National Academy of Sciences of the United States of America. 2015 ; Vol. 112, No. 36. pp. 11294-11299.

RIS

TY - JOUR

T1 - Local host specialization, host-switching, and dispersal shape the regional distributions of avian haemosporidian parasites

AU - Ellis, Vincenzo A.

AU - Collins, Michael D.

AU - Medeiros, Matthew C.I.

AU - Sari, Eloisa H R

AU - Coffey, Elyse D.

AU - Dickerson, Rebecca C.

AU - Lugarini, Camile

AU - Stratford, Jeffrey A.

AU - Henry, Donata R.

AU - Merrill, Loren

AU - Matthews, Alix E.

AU - Hanson, Alison A.

AU - Roberts, Jackson R.

AU - Joyce, Michael

AU - Kunkel, Melanie R.

AU - Ricklefs, Robert E

PY - 2015/9/8

Y1 - 2015/9/8

N2 - The drivers of regional parasite distributions are poorly understood, especially in comparison with those of free-living species. For vector-transmitted parasites, in particular, distributions might be influenced by host-switching and by parasite dispersal with primary hosts and vectors. We surveyed haemosporidian blood parasites (Plasmodium and Haemoproteus) of small land birds in eastern North America to characterize a regional parasite community. Distributions of parasite populations generally reflected distributions of their hosts across the region. However, when the interdependence between hosts and parasites was controlled statistically, local host assemblages were related to regional climatic gradients, but parasite assemblages were not. Moreover, because parasite assemblage similarity does not decrease with distance when controlling for host assemblages and climate, parasites evidently disperse readily within the distributions of their hosts. The degree of specialization on hosts varied in some parasite lineages over short periods and small geographic distances independently of the diversity of available hosts and potentially competing parasite lineages. Nonrandom spatial turnover was apparent in parasite lineages infecting one host species that was well-sampled within a single year across its range, plausibly reflecting localized adaptations of hosts and parasites. Overall, populations of avian hosts generally determine the geographic distributions of haemosporidian parasites. However, parasites are not dispersal-limited within their host distributions, and they may switch hosts readily.

AB - The drivers of regional parasite distributions are poorly understood, especially in comparison with those of free-living species. For vector-transmitted parasites, in particular, distributions might be influenced by host-switching and by parasite dispersal with primary hosts and vectors. We surveyed haemosporidian blood parasites (Plasmodium and Haemoproteus) of small land birds in eastern North America to characterize a regional parasite community. Distributions of parasite populations generally reflected distributions of their hosts across the region. However, when the interdependence between hosts and parasites was controlled statistically, local host assemblages were related to regional climatic gradients, but parasite assemblages were not. Moreover, because parasite assemblage similarity does not decrease with distance when controlling for host assemblages and climate, parasites evidently disperse readily within the distributions of their hosts. The degree of specialization on hosts varied in some parasite lineages over short periods and small geographic distances independently of the diversity of available hosts and potentially competing parasite lineages. Nonrandom spatial turnover was apparent in parasite lineages infecting one host species that was well-sampled within a single year across its range, plausibly reflecting localized adaptations of hosts and parasites. Overall, populations of avian hosts generally determine the geographic distributions of haemosporidian parasites. However, parasites are not dispersal-limited within their host distributions, and they may switch hosts readily.

KW - Avian malaria

KW - Community assembly

KW - Emerging infectious disease

KW - Haemosporida

KW - Parasite communities

UR - http://www.scopus.com/inward/record.url?scp=84941243815&partnerID=8YFLogxK

U2 - 10.1073/pnas.1515309112

DO - 10.1073/pnas.1515309112

M3 - Article

VL - 112

SP - 11294

EP - 11299

JO - Proceedings of the National Academy of Sciences

T2 - Proceedings of the National Academy of Sciences

JF - Proceedings of the National Academy of Sciences

SN - 1091-6490

IS - 36

ER -