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Deeply conserved susceptibility in a multi-host, multi-parasite system
Journal article   Open access   Peer reviewed

Deeply conserved susceptibility in a multi-host, multi-parasite system

Lisa N. Barrow, Sabrina M. McNew, Nora Mitchell, Spencer C. Galen, Holly L. Lutz, Heather Skeen, Thomas Valqui, Jason D. Weckstein and Christopher C. Witt
Ecology letters, v 22(6), pp 987-998
01 Jun 2019
PMID: 30912262
url
https://doi.org/10.1101/424549View
SubmittedCC BY-NC-ND V4.0 Open

Abstract

Ecology Environmental Sciences & Ecology Life Sciences & Biomedicine Science & Technology
Variation in susceptibility is ubiquitous in multi-host, multi-parasite assemblages, and can have profound implications for ecology and evolution in these systems. The extent to which susceptibility to parasites is phylogenetically conserved among hosts can be revealed by analysing diverse regional communities. We screened for haemosporidian parasites in 3983 birds representing 40 families and 523 species, spanning similar to 4500 m elevation in the tropical Andes. To quantify the influence of host phylogeny on infection status, we applied Bayesian phylogenetic multilevel models that included a suite of environmental, spatial, temporal, life history and ecological predictors. We found evidence of deeply conserved susceptibility across the avian tree; host phylogeny explained substantial variation in infection status, and results were robust to phylogenetic uncertainty. Our study suggests that susceptibility is governed, in part, by conserved, latent aspects of anti-parasite defence. This demonstrates the importance of deep phylogeny for understanding present-day ecological interactions.

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Domestic collaboration
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Web of Science research areas
Ecology
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