Vigilance behaviour and fitness consequences: comparing a solitary foraging and an obligate group-foraging mammal

@article{Roux2009VigilanceBA,
  title={Vigilance behaviour and fitness consequences: comparing a solitary foraging and an obligate group-foraging mammal},
  author={Aliza le Roux and Michael I. Cherry and Lorenz Gygax and Marta B. Manser},
  journal={Behavioral Ecology and Sociobiology},
  year={2009},
  volume={63},
  pages={1097-1107}
}
Vigilance behaviour in gregarious species has been studied extensively, especially the relationship between individual vigilance and group size, which is often negative. Relatively little is known about the effect of conspecifics on vigilance in non-obligate social species or the influence of sociality itself on antipredator tactics. We investigated predator avoidance behaviour in the yellow mongoose, Cynictis penicillata, a group-living solitary forager, and compared it with a sympatric group… 
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References

SHOWING 1-10 OF 66 REFERENCES

PREDATOR VIGILANCE AND GROUP SIZE IN MAMMALS AND BIRDS: A CRITICAL REVIEW OF THE EMPIRICAL EVIDENCE

  • M. Elgar
  • Environmental Science
    Biological reviews of the Cambridge Philosophical Society
  • 1989
Most of the studies fail to adequately demonstrate an unambiguous relationship between vigilance behaviour and group size, but many studies reveal interesting features of the relationship between Vigilance and Group size that should provide fruitful avenues for future research.

Diet and foraging group size in the yellow mongoose: a comparison with the suricate and the bat-eared fox

It is argued that phylogenetic inertia, i.e. the inability to better utilize the availability of abundant, clumped prey – such as harvester termites – by resorting to group foraging, can explain the small foraging group size of yellow mongooses.

Flocking is an effective anti-predation strategy in redshanks, Tringa totanus

. Anti-predator behaviour in overwintering redshanks on an estuary in south-east Scotland was studied in the context of a very high mortality rate due almost entirely to predation by raptors. Attacks…

Intra- and interspecific variation in vigilance and foraging of two gerbillid rodents, Rhombomys opimus andPsammomys obesus : the effect of social environment

Differences in time budgets between heterospecific females of the same social status (solitary or paired) were less pronounced than differences between conspecifics of different status, suggesting variation in activity patterns of females can be largely explained by different social conditions rather than by species affiliation.

The audience effect in a facultatively social mammal, the yellow mongoose, Cynictis penicillata

What limits predator detection in blue tits (Parus caeruleus): posture, task or orientation?

It is shown that when studying foraging and vigilance one must include the difficulty of the foraging task and prey orientation, and time to take-off was affected by foragingtask in the same way as detection was.

Vigilance as a benefit of intermittent locomotion in small mammals

It is concluded that one function of pausing in squirrels is to improve anti-predator vigilance, and studies are needed to examine whether the risk of attacks by conspecifics and predators is higher for chipmunks approaching than leaving food patches in forest habitat.

Theory and method in studies of vigilance and aggregation

  • A. Treves
  • Psychology, Biology
    Animal Behaviour
  • 2000
The relationship of vigilance to aggregation is not straightforward and the absence of a group-size effect on vigilance among primates is probably due to functional differences in vigilance behaviour or safety in groups, not to methodological differences.

The function of mobbing in cooperative meerkats

Hunting behaviour of a sympatric felid and canid in relation to vegetative cover

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