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Title: Avian host composition, local speciation and dispersal drive the regional assembly of avian malaria parasites in South American birds
Authors: Fecchio, Alan
Bell, Jeffrey Andrew
Pinheiro, Rafael Barros Pereira
Cueto, Víctor Rodolfo
Gorosito, Cristian Andrés
Lutz, Holly L.
Gaiotti, Milene Garbim
Paiva, Luciana V.
França, Leonardo Fernandes
Toledo-Lima, Guilherme Santos
Tolentino, Mariana
Pinho, J. B.
Tkach, Vasyl V.
Fontana, Carla Suertegaray
Grande, Juan Manuel
Santillán, Miguél Ángel
Caparroz, Renato
Roos, Andrei L.
Bessa, Rafael
Nogueira, Wagner
Moura, Thiago Augusto de
Nolasco, Erica Csekö
Comiche, Kiba J.M.
Kirchgatter, Karln
Guimarães, Lilian de Oliveira
Dispoto, Janice H.
Marini, Miguel Ângelo
Weckstein, Jason D.
Batalha-Filho, Henrique
Collins, Michael David
Keywords: Animals
Malaria, Avian
Host Parasite Interaction
Host Range
South America
Host Specificity
Host-parasite Interactions
Malaria, Avian
South America
Issue Date: 2019
metadata.dc.publisher.journal: Molecular Ecology
metadata.dc.relation.ispartof: Volume 28, Número 10, Pags. 2681-2693
Abstract: Identifying the ecological factors that shape parasite distributions remains a central goal in disease ecology. These factors include dispersal capability, environmental filters and geographic distance. Using 520 haemosporidian parasite genetic lineages recovered from 7,534 birds sampled across tropical and temperate South America, we tested (a) the latitudinal diversity gradient hypothesis and (b) the distance–decay relationship (decreasing proportion of shared species between communities with increasing geographic distance) for this host–parasite system. We then inferred the biogeographic processes influencing the diversity and distributions of this cosmopolitan group of parasites across South America. We found support for a latitudinal gradient in diversity for avian haemosporidian parasites, potentially mediated through higher avian host diversity towards the equator. Parasite similarity was correlated with climate similarity, geographic distance and host composition. Local diversification in Amazonian lineages followed by dispersal was the most frequent biogeographic events reconstructed for haemosporidian parasites. Combining macroecological patterns and biogeographic processes, our study reveals that haemosporidian parasites are capable of circumventing geographic barriers and dispersing across biomes, although constrained by environmental filtering. The contemporary diversity and distributions of haemosporidian parasites are mainly driven by historical (speciation) and ecological (dispersal) processes, whereas the parasite community assembly is largely governed by host composition and to a lesser extent by environmental conditions. © 2019 John Wiley & Sons Ltd
metadata.dc.identifier.doi: 10.1111/mec.15094
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