Self-assessment by males during energetically costly contests over precopula females in amphipods

Prenter, John; Elwood, Robert W.; Taylor, Phillip W.

doi:10.1016/j.anbehav.2006.01.023

Cited by 99 publications

(73 citation statements)

References 48 publications

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“…The male-male contests of the two rocky shore snails, where a challenger takes over the copulation position from a defender, are similar to those described in other taxa such as amphipods (Ward 1983;Dick and Elwood 1990;Prenter et al 2006). The behaviour of E. malaccana, where the challengers used both their shell lip and snout to push the defenders, also matches observations in two other littorinid species: L. ardouiniana (Ng and Williams 2014) and Littorina planaxis (= L. keenae) (Gibson 1965).…”

Section: Discussionsupporting

confidence: 60%

“…This behaviour pattern reveals that challengers are prepared to accept higher costs when the resource quality is higher (Arnott and Elwood 2008). Apart from resource assessment, there was also some evidence of a pure self-assessment strategy of RHP in E. malaccana, as described in other taxa such as amphipods (Dick and Elwood 1990;Prenter et al 2006 (Moore et al 2008). This assessment strategy infers that a contestant has information about its own fighting ability but not that of its rival, and hence, contestants retreat when they reach their own self-assessed limits (Taylor and Elwood 2003;Arnott and Elwood 2009).…”

Section: Discussionmentioning

confidence: 85%

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Fighting for mates: the importance of individual size in mating contests in rocky shore littorinids

Davies

Stafford

et al. 2016

Mar Biol

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they generally challenged defenders that were smaller than themselves, suggesting an ability to detect rival size before entering into a contest in this species. When sizes of the contestants were similar, defenders were more likely to win contests in E. malaccana but not in E. radiata. Evidence for pure self-assessment of RHP and the ability to assess resource value in challengers was found in E. malaccana. Different fighting strategies appear to have evolved in these congeneric marine snail species, and decisions based on male and female sizes play an important role in determining male reproductive success.

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Section: Discussionsupporting

confidence: 60%

Section: Discussionmentioning

confidence: 85%

Fighting for mates: the importance of individual size in mating contests in rocky shore littorinids

Davies

Stafford

et al. 2016

Mar Biol

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“…This framework has been 85 implemented in many studies, revealing that self-assessment is more prevalent than 86 previously thought (e.g. Brandt & Swallow, 2009;Prenter, Elwood, & Taylor, 2006; Stuart-87 Fox, 2006). However, distinguishing between assessment strategies remains a challenge, and 88 consequently several recent studies report inconclusive results (e.g.…”

mentioning

confidence: 99%

Giant Australian cuttlefish use mutual assessment to resolve male-male contests

et al. 2015

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“…Fights typically impose a physiological cost [27] and result in the depletion of energy reserves [10,28] and the accumulation of lactate in muscle tissues [29]. Lactate accumulates when demands for muscular action exceed the available oxygen for aerobic respiration and the animal uses anaerobic respiration.…”

Section: Introductionmentioning

confidence: 99%

How resource quality differentially affects motivation and ability to fight in hermit crabs

Doake

Elwood²

2010

Proc. R. Soc. B.

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Contesting animals typically gather information about the resource value and that information affects fight motivation. However, it is possible that particular resource characteristics alter the ability to fight independently of the motivation. Using hermit crabs, we investigate how the resource in terms of shell quality affects both motivation and ability to fight. These crabs fight for shells, but those shells have to be carried and may impose physiological costs that impede fight vigour. We find that the shell has different effects on motivation and ability. Potential attackers in very small shells were highly motivated to attack but, rather than having enhanced ability, unexpectedly quickly fatigued and subsequently were not more successful in the fights than were crabs in larger shells. We also examined whether defending crabs could gather information about the attacker's shell from the vigour of the attack. Defending crabs gave up quickly when a potential gain had been assessed, indicating that such information had been gathered. However, there was no indication that this could be owing to the activity of the attacker and the information is probably gathered via visual assessment of the shell.

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Self-assessment by males during energetically costly contests over precopula females in amphipods

Cited by 99 publications

References 48 publications

Fighting for mates: the importance of individual size in mating contests in rocky shore littorinids

Fighting for mates: the importance of individual size in mating contests in rocky shore littorinids

Giant Australian cuttlefish use mutual assessment to resolve male-male contests

How resource quality differentially affects motivation and ability to fight in hermit crabs

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