Great tits Parus major trade health for reproduction
1996; Royal Society; Volume: 263; Issue: 1376 Linguagem: Inglês
10.1098/rspb.1996.0210
ISSN1471-2954
Autores Tópico(s)Bat Biology and Ecology Studies
ResumoRestricted accessMoreSectionsView PDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmail Cite this article Ots Indrek and Hõrak Peeter 1996Great tits Parus major trade health for reproductionProc. R. Soc. Lond. B.2631443–1447http://doi.org/10.1098/rspb.1996.0210SectionRestricted accessArticleGreat tits Parus major trade health for reproduction Indrek Ots Google Scholar Find this author on PubMed Search for more papers by this author and Peeter Hõrak Google Scholar Find this author on PubMed Search for more papers by this author Indrek Ots Google Scholar Find this author on PubMed and Peeter Hõrak Google Scholar Find this author on PubMed Published:22 November 1996https://doi.org/10.1098/rspb.1996.0210AbstractReproduction and maintenance compete for resources within a single individual. But do individuals invest in reproduction just as much as remains after the requirements of maintenance are covered, or do they sacrifice their health for the sake of still further increase the investment in current reproduction? This question has been found hard to answer because of difficulties of demonstrating that individuals naturally make a reproductive effort of such a magnitude as to inflict health damage. In this paper we present evidence for a trade-off between reproductive effort and health state in great tits, indicated by a positive correlation between total prefledging brood weight and both intensity of Haemoproteus blood parasite infection and heterophile: lymphocyte (H:L) ratio. H:L ratios, which signal stress in birds, were high both among individuals making an intense reproductive effort and among aberrantly behaving individuals, such as females incubating in empty nests and birds which abandoned their broods after blood sampling. Experimental reduction of clutch size resulted in decreased intensity of Haemoproteus parasitemia, providing further evidence that individual great tits accept immunosuppression to increase their reproductive investment.FootnotesThis text was harvested from a scanned image of the original document using optical character recognition (OCR) software. As such, it may contain errors. Please contact the Royal Society if you find an error you would like to see corrected. Mathematical notations produced through Infty OCR. Previous ArticleNext Article VIEW FULL TEXT DOWNLOAD PDF FiguresRelatedReferencesDetailsCited by Rollins R, Mouchet A, Margos G, Chitimia-Dobler L, Fingerle V, Becker N and Dingemanse N (2021) Repeatable differences in exploratory behaviour predict tick infestation probability in wild great tits, Behavioral Ecology and Sociobiology, 10.1007/s00265-021-02972-y, 75:3, Online publication date: 1-Mar-2021. 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