globalchange  > 气候变化事实与影响
Scopus记录号: 2-s2.0-85060022165
论文题名:
Climate variation influences host specificity in avian malaria parasites
作者: Fecchio A.; Wells K.; Bell J.A.; Tkach V.V.; Lutz H.L.; Weckstein J.D.; Clegg S.M.; Clark N.J.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2019
卷: 22, 期:3
起始页码: 547
结束页码: 557
语种: 英语
英文关键词: avian malaria ; climate change ; disease ecology ; disease emergence ; host shifting ; host specificity ; infectious disease ; niche specialisation ; parasite specialisation ; vector borne disease
Scopus关键词: Apicomplexa ; Aves ; Haemosporida
英文摘要: Parasites with low host specificity (e.g. infecting a large diversity of host species) are of special interest in disease ecology, as they are likely more capable of circumventing ecological or evolutionary barriers to infect new hosts than are specialist parasites. Yet for many parasites, host specificity is not fixed and can vary in response to environmental conditions. Using data on host associations for avian malaria parasites (Apicomplexa: Haemosporida), we develop a hierarchical model that quantifies this environmental dependency by partitioning host specificity variation into region- and parasite-level effects. Parasites were generally phylogenetic host specialists, infecting phylogenetically clustered subsets of available avian hosts. However, the magnitude of this specialisation varied biogeographically, with parasites exhibiting higher host specificity in regions with more pronounced rainfall seasonality and wetter dry seasons. Recognising the environmental dependency of parasite specialisation can provide useful leverage for improving predictions of infection risk in response to global climate change. © 2019 John Wiley & Sons Ltd/CNRS
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122722
Appears in Collections:气候变化事实与影响

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作者单位: Laboratório de Evolução e Biogeografia, Universidade Federal da Bahia, Rua Barão de Jeremoabo 147, Salvador, BA 40170115, Brazil; Department of Biosciences, Swansea University, Swansea, SA2 8PP, United Kingdom; Department of Biology, University of North Dakota, 1 Campus Drive and Cornell Street, Grand Forks, ND 58202, United States; Department of Biology, University of North Dakota, 10 Cornell Street, Grand Forks, ND 58202, United States; Department of Surgery, University of Chicago, 5812 S. Ellis Ave., Chicago, IL 606372, United States; Integrative Research Center, Field Museum of Natural History, 1400 S. Lake Shore Drive, Chicago, IL 60605, United States; Department of Ornithology, Academy of Natural Sciences and Department of Biodiversity, Earth, and Environmental Sciences, Drexel University, 1900 Benjamin Franklin Parkway, Philadelphia, PA 19103, United States; Edward Grey Institute of Field Ornithology, Department of Zoology, University of Oxford, Oxford, OX1 3PS, United Kingdom; School of Veterinary Science, University of Queensland, Gatton, Qld, Australia

Recommended Citation:
Fecchio A.,Wells K.,Bell J.A.,et al. Climate variation influences host specificity in avian malaria parasites[J]. Ecology Letters,2019-01-01,22(3)
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