Migration strategy and pathogen risk: non-breeding distribution drives malaria prevalence in migratory waders
Pathogen exposure has been suggested as one of the factors shaping the myriad of migration strategies observed in nature. Two hypotheses relate migration strategies to pathogen infection: the 'avoiding the tropics hypothesis' predicts that pathogen prevalence and transmission increase with...
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ftdeakinunifig:oai:figshare.com:article/20887315 2024-06-23T07:51:56+00:00 Migration strategy and pathogen risk: non-breeding distribution drives malaria prevalence in migratory waders NJ Clark SM Clegg Marcel Klaassen 2016-09-01T00:00:00Z http://hdl.handle.net/10536/DRO/DU:30083304 https://figshare.com/articles/journal_contribution/Migration_strategy_and_pathogen_risk_non-breeding_distribution_drives_malaria_prevalence_in_migratory_waders/20887315 unknown http://hdl.handle.net/10536/DRO/DU:30083304 https://figshare.com/articles/journal_contribution/Migration_strategy_and_pathogen_risk_non-breeding_distribution_drives_malaria_prevalence_in_migratory_waders/20887315 All Rights Reserved Ecology not elsewhere classified Science & Technology Life Sciences & Biomedicine Ecology Environmental Sciences & Ecology LONG-DISTANCE MIGRATION CALIDRIS-CANUTUS-RUFA AVIAN MALARIA GLOBAL DIVERSITY BORNE PATHOGENS HABITAT QUALITY BLOOD PARASITES PLASMODIUM BIRDS HAEMOSPORIDA 060299 Ecology not elsewhere classified 970106 Expanding Knowledge in the Biological Sciences School of Life and Environmental Sciences Centre for Integrative Ecology 3103 Ecology 3104 Evolutionary biology 3109 Zoology Text Journal contribution 2016 ftdeakinunifig 2024-06-06T01:57:32Z Pathogen exposure has been suggested as one of the factors shaping the myriad of migration strategies observed in nature. Two hypotheses relate migration strategies to pathogen infection: the 'avoiding the tropics hypothesis' predicts that pathogen prevalence and transmission increase with decreasing non-breeding (wintering) latitude, while the "habitat selection hypothesis" predicts lower pathogen prevalence in marine than in freshwater habitats. We tested these scarcely investigated hypotheses by screening wintering and resident wading shorebirds (Charadriiformes) for avian malaria blood parasites (Plasmodium and Haemoproteus spp.) along a latitudinal gradient in Australia. We sequenced infections to determine if wintering migrants share malaria parasites with local shorebird residents, and we combined prevalence results with published data in a global comparative analysis. Avian malaria prevalence in Australian waders was 3.56% and some parasite lineages were shared between wintering migrants and residents, suggesting active transmission at wintering sites. In the global dataset, avian malaria prevalence was highest during winter and increased with decreasing wintering latitude, after controlling for phylogeny. The latitudinal gradient was stronger for waders that use marine and freshwater habitats (marine + freshwater) than for marine-restricted species. Marine + freshwater wader species also showed higher overall avian malaria parasite prevalence than marine-restricted species. By combining datasets in a global comparative analysis, we provide empirical evidence that migratory waders avoiding the tropics during the non-breeding season experience a decreased risk of malaria parasite infection. We also find global support for the hypothesis that marine-restricted shorebirds experience lower parasite pressures than shorebirds that also use freshwater habitats. Our study indicates that pathogen transmission may be an important driver of site selection for non-breeding migrants, a finding that contributes new ... Article in Journal/Newspaper Calidris canutus DRO - Deakin Research Online |
institution |
Open Polar |
collection |
DRO - Deakin Research Online |
op_collection_id |
ftdeakinunifig |
language |
unknown |
topic |
Ecology not elsewhere classified Science & Technology Life Sciences & Biomedicine Ecology Environmental Sciences & Ecology LONG-DISTANCE MIGRATION CALIDRIS-CANUTUS-RUFA AVIAN MALARIA GLOBAL DIVERSITY BORNE PATHOGENS HABITAT QUALITY BLOOD PARASITES PLASMODIUM BIRDS HAEMOSPORIDA 060299 Ecology not elsewhere classified 970106 Expanding Knowledge in the Biological Sciences School of Life and Environmental Sciences Centre for Integrative Ecology 3103 Ecology 3104 Evolutionary biology 3109 Zoology |
spellingShingle |
Ecology not elsewhere classified Science & Technology Life Sciences & Biomedicine Ecology Environmental Sciences & Ecology LONG-DISTANCE MIGRATION CALIDRIS-CANUTUS-RUFA AVIAN MALARIA GLOBAL DIVERSITY BORNE PATHOGENS HABITAT QUALITY BLOOD PARASITES PLASMODIUM BIRDS HAEMOSPORIDA 060299 Ecology not elsewhere classified 970106 Expanding Knowledge in the Biological Sciences School of Life and Environmental Sciences Centre for Integrative Ecology 3103 Ecology 3104 Evolutionary biology 3109 Zoology NJ Clark SM Clegg Marcel Klaassen Migration strategy and pathogen risk: non-breeding distribution drives malaria prevalence in migratory waders |
topic_facet |
Ecology not elsewhere classified Science & Technology Life Sciences & Biomedicine Ecology Environmental Sciences & Ecology LONG-DISTANCE MIGRATION CALIDRIS-CANUTUS-RUFA AVIAN MALARIA GLOBAL DIVERSITY BORNE PATHOGENS HABITAT QUALITY BLOOD PARASITES PLASMODIUM BIRDS HAEMOSPORIDA 060299 Ecology not elsewhere classified 970106 Expanding Knowledge in the Biological Sciences School of Life and Environmental Sciences Centre for Integrative Ecology 3103 Ecology 3104 Evolutionary biology 3109 Zoology |
description |
Pathogen exposure has been suggested as one of the factors shaping the myriad of migration strategies observed in nature. Two hypotheses relate migration strategies to pathogen infection: the 'avoiding the tropics hypothesis' predicts that pathogen prevalence and transmission increase with decreasing non-breeding (wintering) latitude, while the "habitat selection hypothesis" predicts lower pathogen prevalence in marine than in freshwater habitats. We tested these scarcely investigated hypotheses by screening wintering and resident wading shorebirds (Charadriiformes) for avian malaria blood parasites (Plasmodium and Haemoproteus spp.) along a latitudinal gradient in Australia. We sequenced infections to determine if wintering migrants share malaria parasites with local shorebird residents, and we combined prevalence results with published data in a global comparative analysis. Avian malaria prevalence in Australian waders was 3.56% and some parasite lineages were shared between wintering migrants and residents, suggesting active transmission at wintering sites. In the global dataset, avian malaria prevalence was highest during winter and increased with decreasing wintering latitude, after controlling for phylogeny. The latitudinal gradient was stronger for waders that use marine and freshwater habitats (marine + freshwater) than for marine-restricted species. Marine + freshwater wader species also showed higher overall avian malaria parasite prevalence than marine-restricted species. By combining datasets in a global comparative analysis, we provide empirical evidence that migratory waders avoiding the tropics during the non-breeding season experience a decreased risk of malaria parasite infection. We also find global support for the hypothesis that marine-restricted shorebirds experience lower parasite pressures than shorebirds that also use freshwater habitats. Our study indicates that pathogen transmission may be an important driver of site selection for non-breeding migrants, a finding that contributes new ... |
format |
Article in Journal/Newspaper |
author |
NJ Clark SM Clegg Marcel Klaassen |
author_facet |
NJ Clark SM Clegg Marcel Klaassen |
author_sort |
NJ Clark |
title |
Migration strategy and pathogen risk: non-breeding distribution drives malaria prevalence in migratory waders |
title_short |
Migration strategy and pathogen risk: non-breeding distribution drives malaria prevalence in migratory waders |
title_full |
Migration strategy and pathogen risk: non-breeding distribution drives malaria prevalence in migratory waders |
title_fullStr |
Migration strategy and pathogen risk: non-breeding distribution drives malaria prevalence in migratory waders |
title_full_unstemmed |
Migration strategy and pathogen risk: non-breeding distribution drives malaria prevalence in migratory waders |
title_sort |
migration strategy and pathogen risk: non-breeding distribution drives malaria prevalence in migratory waders |
publishDate |
2016 |
url |
http://hdl.handle.net/10536/DRO/DU:30083304 https://figshare.com/articles/journal_contribution/Migration_strategy_and_pathogen_risk_non-breeding_distribution_drives_malaria_prevalence_in_migratory_waders/20887315 |
genre |
Calidris canutus |
genre_facet |
Calidris canutus |
op_relation |
http://hdl.handle.net/10536/DRO/DU:30083304 https://figshare.com/articles/journal_contribution/Migration_strategy_and_pathogen_risk_non-breeding_distribution_drives_malaria_prevalence_in_migratory_waders/20887315 |
op_rights |
All Rights Reserved |
_version_ |
1802643082293805056 |