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Research Article

The Worldwide Variation in Avian Clutch Size across Species and Space

  • Walter Jetz mail,

    To whom correspondence should be addressed. E-mail: wjetz@ucsd.edu

    Affiliation: Division of Biological Sciences, University of California San Diego, La Jolla, California, United States of America

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  • Cagan H Sekercioglu,

    Affiliation: Center for Conservation Biology, Department of Biology, Stanford University, Stanford, California, United States of America

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  • Katrin Böhning-Gaese

    Affiliation: Institut für Zoologie, Abteilung Ökologie, Johannes Gutenberg-Universität, Mainz Germany

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  • Published: December 09, 2008
  • DOI: 10.1371/journal.pbio.0060303

About the Authors

Walter Jetz
Division of Biological Sciences, University of California San Diego, La Jolla, California, United States of America
Cagan H Sekercioglu
Center for Conservation Biology, Department of Biology, Stanford University, Stanford, California, United States of America
Katrin Böhning-Gaese
Institut für Zoologie, Abteilung Ökologie, Johannes Gutenberg-Universität, Mainz Germany

Corresponding Author

Email: wjetz@ucsd.edu

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

WJ conceived and designed the experiments. WJ analyzed the data. WJ, CHS, and KBG contributed reagents/materials/analysis tools. WJ, CHS, and KBG wrote the paper.