Residency and size affect fight duration and outcome in the fiddler crab Uca annulipes

@article{Jennions1996ResidencyAS,
  title={Residency and size affect fight duration and outcome in the fiddler crab Uca annulipes},
  author={Michael D. Jennions and Patricia Ruth Yvonne Backwell},
  journal={Biological Journal of The Linnean Society},
  year={1996},
  volume={57},
  pages={293-306}
}
We performed a field experiment to investigate the effect of carapace width, major cheliped length and burrow ownership on the fighting success of male fiddler crabs (Uca annulipes). We removed males from their burrows and released them back into the colony (n = 82). Released males tended to initiate encounters with burrow owners slightly smaller than themselves. Several general predictions of Sequential Assessment Game models of contest behaviour were supported: (1) residents won more… 

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References

SHOWING 1-10 OF 37 REFERENCES
The fighting tactics of male mouthbrooding cichlids: the effects of size and residency
TLDR
Behavioural differences between Winners and losers were found in all types of contest, but the activities that differed between winners and losers of contests settled by size were not the same as those that differ between contestants in fights settled on a residency asymmetry.
Escalated damselfly territorial contests are energetic wars of attrition
Strategic decisions during agonistic behaviour in the velvet swimming crab, Necora puber (L.)
TLDR
In natural populations of these crabs, there may not be a close relationship between size and fighting ability and this may promote more direct assessment of factors such as strength, endurance or motivation.
Contest success in relation to size and residency in male sand lizards, Lacerta agilis
Assessment of energy reserves by damselflies engaged in aerial contests for mating territories
TLDR
A model that assumes an asymptotic increase in flight performance with increasing fat content is proposed to explain the simultaneous effects of relative and absolute fat content on contest duration, and to examine possible mechanisms that damselflies use to assess each other's energy reserves.
Effects of body size on agonistic encounters between male jumping spiders (Araneae: Salticidae)
. Agonistic encounters were staged between males of the jumping spider Zygoballus rufipes to study the relationship between body size (as estimated by weight) and encounter duration, intensity and
Combat in the Fiddler Crabs Uca Pugilator and U. Pugnax: a Quantitative Analysis
TLDR
Differences between the species in the tempo and length of fights were observed, and an hypothesis, based upon habitat differences and the value of burrows as a resource, is presented to account for these differences.
Time constraints and multiple choice criteria in the sampling behaviour and mate choice of the fiddler crab, Uca annulipes
TLDR
It is suggested that the number of males sampled (and other indices of ‘‘sampling effort’’) may not be reliable indicators of female choosiness and may not reflect the strength of female mating preferences under certain conditions.
...
...