Only Half Right: Species with Female-Biased Sexual Size Dimorphism Consistently Break Rensch's Rule

Thomas J. Webb, Robert P. Freckleton · 2007

Read Only Half Right: Species with Female-Biased Sexual Size Dimorphism Consistently Break Rensch's Rule by Thomas J. Webb, Robert P. Freckleton (2007) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/plos-pone-0000897.txt.

Description

Thomas Webb and Robert Freckleton tested a classic size rule in animals where females are the larger sex, in PLOS ONE in 2007. In most species the sexes differ in size, and females are often bigger. Rensch's rule describes how that gap tends to change as species get larger overall.

Webb and Freckleton asked whether the rule holds when females lead in size. Their answer, flagged in the title, is that such species break the rule about half the time. A half kept rule is still useful, but it needs a better explanation. The study pushes biologists to ask what drives size gaps, not just describe them.

Catalog record

CREATORThomas J. Webb, Robert P. Freckleton
YEAR2007
COLLECTIONPAPERS
FORMATTXT
FILE SIZE50 KB
LICENSECreative Commons Attribution License
RIGHTSCC BY
SOURCEPLOS ONE

Source: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0000897

Browse the full library · About the Tower of Babel