Queue selection and switching by false clown anemonefish, Amphiprion ocellaris

Mitchell, Jeremy S.

doi:10.1016/j.anbehav.2004.05.017

Cited by 28 publications

(21 citation statements)

References 42 publications

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“…All in all, the lack of social effects in this study might imply that while social factors are known to govern within-group social interactions in P. xanthosomus (Wong et al 2007(Wong et al , 2008a and other social fishes (e.g. Heg et al 2004;Mitchell 2005;Buston & Cant 2006), their importance in governing between-group dispersal decisions may be limited.…”

Section: Discussionmentioning

confidence: 77%

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Ecological constraints and benefits of philopatry promote group-living in a social but non-cooperatively breeding fish

Wong

2009

Proc. R. Soc. B.

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Why non-breeding subordinates of many animal societies tolerate group-living remains a pertinent question in evolutionary biology. The ecological constraints and benefits of philopatry hypotheses have the potential to explain the maintenance of group-living by specifying the ecological conditions favouring delayed dispersal over independent breeding by subordinates. In this study, I used field and laboratory experiments to investigate the role of ecological and social factors on the dispersal decisions of nonbreeding subordinates in the coral-dwelling fish, Paragobiodon xanthosomus (Gobiidae). Subordinate dispersal was strongly influenced by ecological constraints (habitat saturation and risks of movement) and benefits of philopatry (relative coral size). Social factors, namely social rank and forcible eviction, did not affect the occurrence of subordinate dispersal. These results suggest that selection has favoured subordinate P. xanthosomus, which employ a mixed strategy-switching tactics in response to three ecological factors-despite having low mobility and extreme habitat-specific requirements. Furthermore, this study demonstrates the generality of the ecological constraints and benefits of philopatry hypotheses as explanations for group-living in species where subordinates are unrelated to breeders, provide no help and do not strictly delay dispersal.

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Section: Discussionmentioning

confidence: 77%

“…Griffiths et al 2004). Secondly, subordinates that dispersed did not always improve their rank by doing so, as has also been documented in another habitat-specialist reef fish (Mitchell 2005). Furthermore, subordinates that did not improve their rank did not switch back to their original group.…”

Section: Discussionmentioning

confidence: 78%

Ecological constraints and benefits of philopatry promote group-living in a social but non-cooperatively breeding fish

Wong

2009

Proc. R. Soc. B.

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“…Within each clownfish group (i.e., clownfish within one anemone) of typically three to five individuals, there is a size-based dominance hierarchy: the female is largest, the male is second largest, and the nonbreeders rank progressively lower in the hierarchy as they decrease in size. The bigger the group, the longer a settler has to wait to achieve reproductive status, and thus the lower the likelihood of surviving to maturity (33). If the single female adult of a group dies, then the male changes sex to female, and the largest juvenile from the anemone becomes sexually mature as male.…”

Section: Methodsmentioning

confidence: 99%

First genealogy for a wild marine fish population reveals multigenerational philopatry

Salles

Pujol

Maynard

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

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Natal philopatry, the return of individuals to their natal area for reproduction, has advantages and disadvantages for animal populations. Natal philopatry may generate local genetic adaptation, but it may also increase the probability of inbreeding that can compromise persistence. Although natal philopatry is well documented in anadromous fishes, marine fish may also return to their birth site to spawn. How philopatry shapes wild fish populations is, however, unclear because it requires constructing multigenerational pedigrees that are currently lacking for marine fishes. Here we present the first multigenerational pedigree for a marine fish population by repeatedly genotyping all individuals in a population of the orange clownfish (Amphiprion percula) at Kimbe Island (Papua New Guinea) during a 10-y period. Based on 2927 individuals, our pedigree analysis revealed that longitudinal philopatry was recurrent over five generations. Progeny tended to settle close to their parents, with related individuals often sharing the same colony. However, successful inbreeding was rare, and genetic diversity remained high, suggesting occasional inbreeding does not impair local population persistence. Local reproductive success was dependent on the habitat larvae settled into, rather than the habitat they came from. Our study suggests that longitudinal philopatry can influence both population replenishment and local adaptation of marine fishes. Resolving multigenerational pedigrees during a relatively short period, as we present here, provides a framework for assessing the ability of marine populations to persist and adapt to accelerating climate change.Amphiprion percula | self-recruitment | multigenerational pedigree | inbreeding | parental effects

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“…larger individuals are competitively superior, more dominant and further ahead in the queue than smaller individuals (Forrester 1991;Balshine-Earn et al 1998;Buston 2004a;Mitchell 2005). Within such size-based queues, conflict over rank would occur if a subordinate grew so that the size and thus competitive difference between itself and its immediate dominant was sufficiently reduced (Buston 2004a;.…”

Section: Introductionmentioning

confidence: 99%

The threat of punishment enforces peaceful cooperation and stabilizes queues in a coral-reef fish

et al. 2007

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Social queues, in which subordinates wait for their turn to inherit dominant breeding status, are a familiar feature of many animal societies. However, little is known about the mechanisms stabilizing social queues given the inevitable conflict over rank between group members. Here, we report the role of punishment and cooperation in promoting the stability of size-based queues in a coral-dwelling goby, Paragobiodon xanthosomus (Gobiidae). Quantitative analysis of the size-structure of queues revealed that individuals of adjacent rank differ in size by a specific size ratio, and comparisons of individual growth rates within queues demonstrated that specific size ratios are maintained over time via the regulation of subordinate growth rates. Furthermore, contest experiments demonstrated that the specific size ratio represents a threshold above which the subordinates become a threat to their immediate dominant, and as a result, dominants evict subordinates that exceed this size ratio from the group. We propose that threshold size ratios are maintained by subordinates as a form of peaceful cooperation whereby they avoid inflicting costs on dominants, and that such cooperation arises in response to the threat of punishment in the form of eviction by dominants. Societal stability is therefore achieved through the effects of punishment and cooperation acting in concert to promote the resolution of conflict over rank between group members.

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Queue selection and switching by false clown anemonefish, Amphiprion ocellaris

Cited by 28 publications

References 42 publications

Ecological constraints and benefits of philopatry promote group-living in a social but non-cooperatively breeding fish

Ecological constraints and benefits of philopatry promote group-living in a social but non-cooperatively breeding fish

First genealogy for a wild marine fish population reveals multigenerational philopatry

The threat of punishment enforces peaceful cooperation and stabilizes queues in a coral-reef fish

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