Spring reproductive success influences autumnal malarial load in a passerine bird
Although avian haemosporidian parasites are widely used as model organisms to study fundamental questions in evolutionary and behavorial ecology of host-parasite interactions, some of their basic characteristics, such as seasonal variations in within-host density, are still mostly unknown. In additi...
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2024-02-01
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| author | Pigeault, Romain Cozzarolo, Camille-Sophie Wassef, Jérôme Gremion, Jérémy Bastardot, Marc Glaizot, Olivier Christe, Philippe |
| author_facet | Pigeault, Romain Cozzarolo, Camille-Sophie Wassef, Jérôme Gremion, Jérémy Bastardot, Marc Glaizot, Olivier Christe, Philippe |
| author_sort | Pigeault, Romain |
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| description | Although avian haemosporidian parasites are widely used as model organisms to study fundamental questions in evolutionary and behavorial ecology of host-parasite interactions, some of their basic characteristics, such as seasonal variations in within-host density, are still mostly unknown. In addition, their interplay with host reproductive success in the wild seems to depend on the interaction of many factors, starting with host and parasite species and the temporal scale under study. Here, we monitored the parasitemia of two haemosporidian parasites – Plasmodium relictum (lineage SGS1) and P. homonucleophilum (lineage SW2) – in two wild populations of great tits (Parus major) in Switzerland over three years, to characterize their dynamics. We also collected data on birds’ reproductive output – laying date, clutch size, fledging success – to determine whether they were associated with parasitemia before (winter), during (spring) and after (autumn) breeding season. Parasitemia of both species dramatically increased in spring, in a way that was correlated to parasitemia in winter. Parasitemia before and during breeding season did not explain reproductive success. However, the birds which fledged the more chicks had higher parasitemia in autumn, which was not associated with their parasitemia in previous spring. Our results tend to indicate that high haemosporidian parasite loads do not impair reproduction in great tits, but high resource allocation into reproduction can leave birds less able to maintain low parasitemia over the following months. |
| format | Article |
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| institution | Kabale University |
| issn | 2804-3871 |
| language | English |
| publishDate | 2024-02-01 |
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| spelling | doaj-art-f5238da99f074fadbe5b367fb38e1e0d2025-02-07T10:17:18ZengPeer Community InPeer Community Journal2804-38712024-02-01410.24072/pcjournal.37810.24072/pcjournal.378Spring reproductive success influences autumnal malarial load in a passerine bird Pigeault, Romain0https://orcid.org/0000-0002-8011-4600Cozzarolo, Camille-Sophie1https://orcid.org/0000-0002-9056-8622Wassef, Jérôme2Gremion, Jérémy3Bastardot, Marc4Glaizot, Olivier5https://orcid.org/0000-0001-9116-3355Christe, Philippe6https://orcid.org/0000-0002-8605-7002Department of Ecology and Evolution, Université de Lausanne, Biophore, 1015 Lausanne, Switzerland; Laboratoire EBI, Equipe EES, UMR CNRS 7267, 86000 Poitiers, FranceDepartment of Ecology and Evolution, Université de Lausanne, Biophore, 1015 Lausanne, Switzerland; Biogéosciences, UMR 6282 CNRS, université de Bourgogne, 6 boulevard Gabriel, 21000 Dijon, France; Institute of Organismic and Molecular Evolution (iomE), Anthropology, Johannes Gutenberg University, 55128 Mainz, GermanyDepartment of Ecology and Evolution, Université de Lausanne, Biophore, 1015 Lausanne, SwitzerlandDepartment of Ecology and Evolution, Université de Lausanne, Biophore, 1015 Lausanne, SwitzerlandDepartment of Ecology and Evolution, Université de Lausanne, Biophore, 1015 Lausanne, SwitzerlandDepartment of Ecology and Evolution, Université de Lausanne, Biophore, 1015 Lausanne, Switzerland; Muséum cantonal des sciences naturelles - Département de zoologie, Palais de Rumine, Place de la Riponne 6, 1005 Lausanne, SwitzerlandDepartment of Ecology and Evolution, Université de Lausanne, Biophore, 1015 Lausanne, SwitzerlandAlthough avian haemosporidian parasites are widely used as model organisms to study fundamental questions in evolutionary and behavorial ecology of host-parasite interactions, some of their basic characteristics, such as seasonal variations in within-host density, are still mostly unknown. In addition, their interplay with host reproductive success in the wild seems to depend on the interaction of many factors, starting with host and parasite species and the temporal scale under study. Here, we monitored the parasitemia of two haemosporidian parasites – Plasmodium relictum (lineage SGS1) and P. homonucleophilum (lineage SW2) – in two wild populations of great tits (Parus major) in Switzerland over three years, to characterize their dynamics. We also collected data on birds’ reproductive output – laying date, clutch size, fledging success – to determine whether they were associated with parasitemia before (winter), during (spring) and after (autumn) breeding season. Parasitemia of both species dramatically increased in spring, in a way that was correlated to parasitemia in winter. Parasitemia before and during breeding season did not explain reproductive success. However, the birds which fledged the more chicks had higher parasitemia in autumn, which was not associated with their parasitemia in previous spring. Our results tend to indicate that high haemosporidian parasite loads do not impair reproduction in great tits, but high resource allocation into reproduction can leave birds less able to maintain low parasitemia over the following months.https://peercommunityjournal.org/articles/10.24072/pcjournal.378/avian malariaannual variationsrelapsesrecrudescencerecurrencesparasitemialife history traitsbird |
| spellingShingle | Pigeault, Romain Cozzarolo, Camille-Sophie Wassef, Jérôme Gremion, Jérémy Bastardot, Marc Glaizot, Olivier Christe, Philippe Spring reproductive success influences autumnal malarial load in a passerine bird Peer Community Journal avian malaria annual variations relapses recrudescence recurrences parasitemia life history traits bird |
| title | Spring reproductive success influences autumnal malarial load in a passerine bird
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| title_full | Spring reproductive success influences autumnal malarial load in a passerine bird
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| title_fullStr | Spring reproductive success influences autumnal malarial load in a passerine bird
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| title_full_unstemmed | Spring reproductive success influences autumnal malarial load in a passerine bird
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| title_short | Spring reproductive success influences autumnal malarial load in a passerine bird
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| title_sort | spring reproductive success influences autumnal malarial load in a passerine bird |
| topic | avian malaria annual variations relapses recrudescence recurrences parasitemia life history traits bird |
| url | https://peercommunityjournal.org/articles/10.24072/pcjournal.378/ |
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