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Journal ArticleDOI

Geometry for the selfish herd.

William D. Hamilton
- 01 May 1971 - 
- Vol. 31, Iss: 2, pp 295-311
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TLDR
An antithesis to the view that gregarious behaviour is evolved through benefits to the population or species is presented, and simply defined models are used to show that even in non-gregarious species selection is likely to favour individuals who stay close to others.
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This article is published in Journal of Theoretical Biology.The article was published on 1971-05-01. It has received 3343 citations till now. The article focuses on the topics: Selfish herd theory & Population.

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Cooperative breeding in marmots

Daniel T. Blumstein, +1 more
- 01 Mar 1999 - 
TL;DR: This paper identifies cooperative breeding when: individuals delay dispersal beyond reproductive maturity, reproduction in mature individuals is suppressed, and when non-breeders provide alloparental care, and notes that marmots provide an excellent taxon in which to study the evolution of cooperative breeding.
Journal ArticleDOI

Some causes of the variable shape of flocks of birds.

TL;DR: It is hypothesised that variability of shape increases when there are larger local differences in movement behaviour in the flock, and this is investigated with the help of a model of the self-organisation of travelling groups, called StarDisplay, since such a model has increased the understanding of what causes the oblong shape of schools of fish.
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Social ethology of the whiptail wallaby, Macropus parryi, in northeastern New South Wales

TL;DR: In accordance with the whiptail's unaggressive nature, threat and submissive displays were less well developed than superiority and courtship displays and conflict activities, and whiptails are the most diurnal macropod.
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Fish school density and volume

TL;DR: Extensive data is presented from experiments on cruising schools of saithe, herring and cod to validate the whole-school method and derive a computation which eliminates bias from outliers.
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The survival value of flocking in neotropical birds: reality or fiction?

TL;DR: This work gathered published and unpublished data from various tropical forests where bird species forage exclusively alone or in pairs, in heterospecific flocks some of the time (facultative flock members), or exclusively in heterOSpecific year-long associations (obligate flock members) and tested whether survival rates differed among these three groups.
References
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Book

Animal dispersion in relation to social behaviour

TL;DR: Wynne-Edwards has written this interesting and important book as a sequel to his earlier (1962) Animal Dispersion in Relation to Social Behaviour, and reviewing it has proven to be a valuable task for one who normally is only at the periphery of the group selection controversy.