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Evaluation of the Rate of Evolution in Natural Populations of Guppies ( Poecilia reticulata )

Reznick, David N., Shaw, Frank H., Rodd, F. Helen, Shaw, Ruth G.·1997·Science

Abstract

Natural populations of guppies were subjected to an episode of directional selection that mimicked natural processes. The resulting rate of evolution of age and size at maturity was similar to rates typically obtained for traits subjected to artificial selection in laboratory settings and up to seven orders of magnitude greater than rates inferred from the paleontological record. Male traits evolved more rapidly than female traits largely because males had more genetic variation upon which natural selection could act. These results are considered in light of the ongoing debate about the importance of natural selection versus other processes in the paleontological record of evolution.

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Metadata

Authors
Reznick, D. N., Shaw, F. H., Rodd, F. H., & Shaw, R. G.
Venue
Science
Published
1997-03-28
Volume
275
Issue
5308
Pages
1934-1937
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1981048891
Cited by
814
References
3
FWCI
10.77
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Evaluation of the Rate of Evolution in Natural Populations of Guppies ( Poecilia reticulata ). https://app.cochat.ai/papers/10.1126/science.275.5308.1934
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Reznick, D. N., Shaw, F. H., Rodd, F. H., & Shaw, R. G. (1997). Evaluation of the Rate of Evolution in Natural Populations of Guppies ( Poecilia reticulata ). Science. https://doi.org/10.1126/science.275.5308.1934

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

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