An experimental model of aggressive dominance in (pisces, poeciliidae).

Beaugrand, Jacques P.; Zayan, René

doi:10.1016/0376-6357(85)90116-0

Cited by 86 publications

(72 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Resource retention may be linked to an animal's ability to maintain a territory (Ridley, 1995). Animals who adjust their aggressive behavior in defense of a specific area (Huntingford & Turner, 1987) display territoriality, a phenomenon described in several taxa (Krasne et al, 1997;Bowen et al, 2008;Rosell et al, 2008;Morishita et al, 2009), including fish (Beaugrand & Zayan, 1985;Barreto & Volpato, 2006;Watanabe, 2008). In this context, a resident animal usually wins a fight with an intruder, probably because the resident animal values the territory more than an intruder (Enquist & Leimar, 1987).…”

Section: Introductionmentioning

confidence: 99%

“…In this context, a resident animal usually wins a fight with an intruder, probably because the resident animal values the territory more than an intruder (Enquist & Leimar, 1987). Thus, the resident animal has greater odds of winning a contest because it fights more strongly for the territory (Smith & Riechert, 1984) and/or uses its advantage of knowing the area (Beaugrand & Zayan, 1985).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Environmental enrichment reduces aggression of pearl cichlid, Geophagus brasiliensis, during resident-intruder interactions

Kadry

Barreto

2010

Neotrop. ichthyol.

View full text Add to dashboard Cite

Among fishes, when residents and intruders fight, residents usually win, most likely because they value the residence more than intruders. We hypothesized that enriched environments increase the value of an area in dispute, causing a resident to more fiercely defend a resource-rich environment than a poor one. However, in the present study, intruder-resident tests with the pearl cichlid, Geophagus brasiliensis, showed environmental enrichment actually reduces aggression and can even lead to co-habitation without fighting. Additionally, in our experiments, the prior residence effect occurred irrespective of enrichment condition. Decreased visibility from increased habitat complexity reduces interactions between fish and consequently might explain the lower aggression observed herein.Em lutas entre peixes residentes e intrusos, residentes geralmente vencem, provavelmente porque valorizam o território mais do que os intrusos. Nós aventamos a hipótese de que ambientes enriquecidos aumentam o valor da área em disputa, levando os residentes a defenderem mais violentamente ambientes enriquecidos de recursos do que ambientes empobrecidos, pois possuiriam mais motivação para mantê-lo. No entanto, no presente estudo, ao testarmos as interações entre intrusos e residentes em acarás, Geophagus brasiliensis, observamos que o enriquecimento ambiental reduz a agressividade e pode levar a cohabitação entre os peixes, sem luta. Adicionalmente, em nossos experimentos, o efeito da residência prévia ocorreu independente da condição de enriquecimento. A diminuição das interações entre os peixes e, consequentemente, a diminuição do nível de agressividade é aqui atribuída aos efeitos da diminuição da visibilidade entre os peixes devido ao aumento de complexidade do ambiente.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Environmental enrichment reduces aggression of pearl cichlid, Geophagus brasiliensis, during resident-intruder interactions

Kadry

Barreto

2010

Neotrop. ichthyol.

View full text Add to dashboard Cite

show abstract

“…Familiar dyads exhibit lower aggression levels (Beaugrand & Zayan 1985;Johnsson 1997;O'Connor et al 2000) and initiators of conflicts are more likely to win against familiar than against unfamiliar competitors (Hö jesjö et al 1998). Importantly, because intense fighting may lead to an increased risk of being preyed upon ( Jakobsson 1987;Brick 1998), the decision to associate preferentially with familiar conspecifics may confer anti-predator advantages on individuals.…”

Section: Introductionmentioning

confidence: 99%

Coping with divided attention: the advantage of familiarity

Griffiths

Brockmark

Höjesjö

et al. 2004

Proc. R. Soc. Lond. B

141

142

View full text Add to dashboard Cite

The ability of an animal to perform a task successfully is limited by the amount of attention being simultaneously focused on other activities. One way in which individuals might reduce the cost of divided attention is by preferentially focusing on the most beneficial tasks. In territorial animals where aggression is lower among familiar individuals, the decision to associate preferentially with familiar conspecifics may therefore confer advantages by allowing attention to be switched from aggression to predator vigilance and feeding. Wild juvenile brown trout were used to test the prediction that familiar fishes respond more quickly than unfamiliar fishes to a simulated predator attack. Our results confirm this prediction by demonstrating that familiar trout respond 14% faster than unfamiliar individuals to a predator attack. The results also show that familiar fishes consume a greater number of food items, foraging at more than twice the rate of unfamiliar conspecifics. To the best of our knowledge, these results provide the first evidence that familiarity-biased association confers advantages through the immediate fitness benefits afforded by faster predator-evasion responses and the long-term benefits provided by increased feeding opportunities.

show abstract

“…We used the intruder-resident animal relationship as the experimental paradigm. The resident animals typically win a confrontation and become the dominant in the pair (Beaugrand & Zayan, 1985). We showed that EE decreases aggression and/or leads to co-habitation of individuals without concomitant confrontation in pairs of pearl cichlids.…”

Section: Rodrigo Egydio Barretomentioning

confidence: 67%

What tunes aggression in fish during fighting in environments that vary in enrichment?

Barreto

2012

Neotrop. ichthyol.

View full text Add to dashboard Cite

An experimental model of aggressive dominance in (pisces, poeciliidae).

Cited by 86 publications

References 41 publications

Environmental enrichment reduces aggression of pearl cichlid, Geophagus brasiliensis, during resident-intruder interactions

Environmental enrichment reduces aggression of pearl cichlid, Geophagus brasiliensis, during resident-intruder interactions

Coping with divided attention: the advantage of familiarity

What tunes aggression in fish during fighting in environments that vary in enrichment?

Contact Info

Product

Resources

About