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Chronic infection. Hidden costs of infection: chronic malaria accelerates telomere degradation and senescence in wild birds.

In English

Författare

Summary, in English

Recovery from infection is not always complete, and mild chronic infection may persist. Although the direct costs of such infections are apparently small, the potential for any long-term effects on Darwinian fitness is poorly understood. In a wild population of great reed warblers, we found that low-level chronic malaria infection reduced life span as well as the lifetime number and quality of offspring. These delayed fitness effects of malaria appear to be mediated by telomere degradation, a result supported by controlled infection experiments on birds in captivity. The results of this study imply that chronic infection may be causing a series of small adverse effects that accumulate and eventually impair phenotypic quality and Darwinian fitness.

Publiceringsår

2015

Språk

Engelska

Sidor

436-438

Publikation/Tidskrift/Serie

Science

Volym

347

Issue

6220

Dokumenttyp

Artikel i tidskrift

Förlag

American Association for the Advancement of Science (AAAS)

Ämne

  • Biological Sciences

Status

Published

Projekt

  • Malaria in birds
  • Long-term study of great reed warblers

Forskningsgrupp

  • Molecular Ecology and Evolution Lab

ISBN/ISSN/Övrigt

  • ISSN: 1095-9203