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Parental Care and Clutch Sizes in North and South American Birds

Martin, Thomas E., Martin, P. R., Olson, C. R., Heidinger, B. J., Fontaine, J. J.·2000·Science

Abstract

The evolutionary causes of small clutch sizes in tropical and Southern Hemisphere regions are poorly understood. Alexander Skutch proposed 50 years ago that higher nest predation in the south constrains the rate at which parent birds can deliver food to young and thereby constrains clutch size by limiting the number of young that parents can feed. This hypothesis for explaining differences in clutch size and parental behaviors between latitudes has remained untested. Here, a detailed study of bird species in Arizona and Argentina shows that Skutch's hypothesis explains clutch size variation within North and South America. However, neither Skutch's hypothesis nor two major alternatives explain differences between latitudes.

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Metadata

Authors
Martin, T. E., Martin, P. R., Olson, C. R., Heidinger, B. J., & Fontaine, J. J.
Venue
Science
Published
2000-02-25
Volume
287
Issue
5457
Pages
1482-1485
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2133019796
Cited by
449
References
0
FWCI
20.75
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Parental Care and Clutch Sizes in North and South American Birds. https://app.cochat.ai/papers/10.1126/science.287.5457.1482
The paper
Martin, T. E., Martin, P. R., Olson, C. R., Heidinger, B. J., & Fontaine, J. J. (2000). Parental Care and Clutch Sizes in North and South American Birds. Science. https://doi.org/10.1126/science.287.5457.1482

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.