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Please use this identifier to cite or link to this item: http://hdl.handle.net/10481/31169

Title: Assessing the Effects of Climate on Host-Parasite Interactions: A Comparative Study of European Birds and Their Parasites
Authors: Møller, Anders Pape
Merino, Santiago
Soler, Juan José
Antonov, Anton
Badás, Elisa P.
Calero-Torralbo, Miguel A.
Lope, Florentino de
Eeva, Tapio
Figuerola, Jordi
Flensted-Jensen, Einar
Garamszegi, Laszlo Z.
González-Braojos, Sonia
Gwinner, Helga
Hanssen, Seveinn Are
Heylen, Dieter
Ilmonen, Petteri
Klarborg, Kurt
Korpimäki, Erkki
Martínez, Javier
Martínez de la Fuente, Josue
Marzal, Alfonso
Matthysen, Erik
Matyjasiak, Piotr
Molina-Morales, Mercedes
Moreno, Juan
Mousseau, Timothy A.
Nielsen, Jan Tøttrup
Pap, Péter László
Rivero de Aguilar, Juan
Shurulinkov, Peter
Slagsvold, Tore
Szép, Tibor
Szöllősi, Eszter
Török, Janos
Vaclad, Radovan
Valera, Francisco
Ziane, Nadia
Issue Date: 2013
Abstract: [Background] Climate change potentially has important effects on distribution, abundance, transmission and virulence of parasites in wild populations of animals. [Methodology/Principal Finding] Here we analyzed paired information on 89 parasite populations for 24 species of bird hosts some years ago and again in 2010 with an average interval of 10 years. The parasite taxa included protozoa, feather parasites, diptera, ticks, mites and fleas. We investigated whether change in abundance and prevalence of parasites was related to change in body condition, reproduction and population size of hosts. We conducted analyses based on the entire dataset, but also on a restricted dataset with intervals between study years being 5–15 years. Parasite abundance increased over time when restricting the analyses to datasets with an interval of 5–15 years, with no significant effect of changes in temperature at the time of breeding among study sites. Changes in host body condition and clutch size were related to change in temperature between first and second study year. In addition, changes in clutch size, brood size and body condition of hosts were correlated with change in abundance of parasites. Finally, changes in population size of hosts were not significantly related to changes in abundance of parasites or their prevalence. [Conclusions/Significance] Climate change is associated with a general increase in parasite abundance. Variation in laying date depended on locality and was associated with latitude while body condition of hosts was associated with a change in temperature. Because clutch size, brood size and body condition were associated with change in parasitism, these results suggest that parasites, perhaps mediated through the indirect effects of temperature, may affect fecundity and condition of their hosts. The conclusions were particularly in accordance with predictions when the restricted dataset with intervals of 5–15 years was used, suggesting that short intervals may bias findings.
Sponsorship: The Academy of Finland is acknowledged for a grant to TE (project 8119367) and EK (project 250709). PLP was supported by a research grant (TE_291/2010) offered by the Romanian Ministry of Education and Science. T. Szép received funding from OTKA K69068 and JT from OTKA 75618. JMP was supported by a JAE grant from Consejo Superior de Investigaciones Científicas. SM-JM, FdL-AM, JF, JJS and FV were respectively supported by projects CGL2009-09439, CGL2012-36665, CGL2009- 11445, CGL2010-19233-C03-01 and CGL2008-00562 by the Spanish Ministry of Science and Innovation and FEDER and project EVITAR by the Spanish Ministry of Health. FV was also supported by the European Regional Development Fund. MACT was funded by a predoctoral FPU grant from the Spanish Ministry of Education (AP20043713). PM was supported by grant from the Polish Ministry of Science and Higher Education (project 2P04F07030), and the Foundation for Polish Science.
Publisher: Public Library of Science (PLOS)
Keywords: Birds
Climate change
Host-pathogen interactions
Parasite groups
Population density
Population size
URI: http://hdl.handle.net/10481/31169
ISSN: 1932-6203
Rights : Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License
Citation: Møller, A.P.; et al. Assessing the Effects of Climate on Host-Parasite Interactions: A Comparative Study of European Birds and Their Parasites. Plos One, 8(12): e82886 (2013). [http://hdl.handle.net/10481/31169]
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