✦ LIBER ✦

Is Signalling of Fighting Ability Costlier for Weaker Individuals?

✍ Scribed by Peter L. Hurd

Book ID: 102612118
Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 262 KB
Volume: 184
Category: Article
ISSN: 0022-5193
DOI: 10.1006/jtbi.1996.0246

No coin nor oath required. For personal study only.

✦ Synopsis

Using a simple model of signaling of fighting ability, I demonstrate that; (1) conventional, cost-free, signals of fighting ability can be an ESS, (2) signals with significant costs can be used at ESS as long as they are used to indicate weakness rather than strength, (3) that if a set of signals is used to indicate a set of fighting abilities through their costs, they must decrease in cost for stronger signalers. The reason for this is that individuals of higher fighting ability have less to gain by avoiding escalated contests, and are thus more sensitive to signal costs. These results are of particular relevance to badges of status and other simultaneous signals used to settle contests over minor resources.

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