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Related Experiment Video

Updated: Jun 5, 2026

Experimental Manipulation of Body Size to Estimate Morphological Scaling Relationships in Drosophila

Experimental Manipulation of Body Size to Estimate Morphological Scaling Relationships in Drosophila

Published on: October 1, 2011

Comparative evolutionary ecology of seed size.

M Westoby¹, E Jurado, M Leishman

¹Mark Westoby and Michelle Leishman are at the School of Biological Sciences and Research Unit for Biodiversity and Bioresources, Macquarie University, NSW 2109, Australia.

Trends in Ecology & Evolution

|January 18, 2011

Summary

Seed size impacts seedling establishment success. Larger seeds offer more resources, but evolutionary trade-offs exist, with experimental evidence still emerging for specific benefits.

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Reliable Method for Assessing Seed Germination, Dormancy, and Mortality under Field Conditions

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Published on: November 6, 2016

Area of Science:

Plant biology
Evolutionary ecology

Background:

Seedling establishment is influenced by seed reserves.
Seed size evolves as a trade-off between seed number and resources per seed.
Species exhibit vast seed size variation (10^11-fold), indicating diverse evolutionary compromises.

Purpose of the Study:

To review experimental evidence on the adaptive benefits of large seed size.
To assess the relationship between seed size and seedling establishment under various environmental pressures.

Main Methods:

Literature review of studies investigating seed size and establishment.
Analysis of experimental data testing seed size benefits against specific environmental hazards.

Main Results:

Large seed size is often interpreted as adaptive to environmental hazards.
Experimental tests for these benefits have been infrequent.
Emerging experimental data show inconsistent patterns regarding seed size advantages.

Conclusions:

The adaptive significance of seed size variation requires further experimental validation.
Seed size evolution is complex, potentially linked to other plant traits.
A consistent understanding of seed size benefits across different hazards is yet to be established.