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Living in Groups (Oxford Series in Ecology and Evolution)

by Jens Krause (Author), Graeme Ruxton (Author)
5.0 5.0 out of 5 stars 5 ratings
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Shoals, swarms, flocks, herds--group formation is a widespread phenomenon in animal populations. It raises several interesting questions for behavioral ecologists. Why do animals form and live in groups, and what factors influence the ways in which they do this? What are the costs and benefits to an animal of group living? How are these influenced by ecological factors? The authors familiarize the reader with cutting-edge ideas on the ecology and evolution of group-living animals, and detail fascinating case studies demonstrating them in action.
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  1. ISBN-10
    0198508174
  2. ISBN-13
    978-0198508175
  3. Publisher
    Oxford University Press
  4. Publication date
    December 19, 2002
  5. Part of series
    Oxford Series in Ecology and Evolution
  6. Language
    English
  7. Dimensions
    9.3 x 0.7 x 6.2 inches
  8. Print length
    224 pages
  9. See all details
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Editorial Reviews

Review

"Diverse and extensive literature citations; helpful author and subject indexes. ... highly recommended."--Choice

About the Author

Jens Krause is at School of Biology, University of Leeds, UK. Graeme Ruxton is at IBLS, University of Glasgow, UK.

Product details

  • Publisher ‏ : ‎ Oxford University Press (December 19, 2002)
  • Language ‏ : ‎ English
  • Hardcover ‏ : ‎ 224 pages
  • ISBN-10 ‏ : ‎ 0198508174
  • ISBN-13 ‏ : ‎ 978-0198508175
  • Item Weight ‏ : ‎ 12.9 ounces
  • Dimensions ‏ : ‎ 9.3 x 0.7 x 6.2 inches
  • Customer Reviews:
    5.0 5.0 out of 5 stars 5 ratings

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Dr. Jens Krause

Dr. Jens Krause

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Top reviews from the United States

Fernanda M.S.
5.0 out of 5 stars Great little book
Reviewed in the United States on May 29, 2013
Verified Purchase
An excellent summary of literature about ecology and evolution of group-living.
Many (I mean, many) of the examples come from fish research, so, if you are looking for bibliography compilation about mammals, this may not be the book for you. However, all the general theory about the benefits and costs of grouping, the size of the group, group conformation, etc, are definitely clearly summarized AND critically synthesized.
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Amazon Customer
5.0 out of 5 stars Good review
Reviewed in the United States on December 23, 2013
Verified Purchase
This good introduction to the models and ideas concerning grouping behavior in evolutionary ecology. The book could have benefited from from a deeper discussion of the cooperative aspects of group living, as cooperation is frequently assumed in the models. Still a great introduction to the subject.
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Susan Alexander
5.0 out of 5 stars Animal behaviour
Reviewed in the United States on October 13, 2013
Group living is widespread amongst an enormous number of animal species from anchovies to zebras, and has attracted attention in a number of different contexts. The authors Jens Krause and Graeme Ruxton have centred on the conceptual issues of grouping behaviour and have aimed to give a broad overview of the literature on current theories and concepts that have developed over the last twenty years.

“Living in Groups” will familiarise the reader with current ideas on the ecology and evolution of group-living animals, and selected case studies illustrate how these ideas and concepts are applied to actual systems. The biggest chapter looks at the benefits of group formation, highlighting anti-predator strategies. Grouping as a means of detecting approaching predators is known as the classical “many eyes” theory, enabling groups to spot predators more effectively and is widely known as a concept, yet safety in numbers (dilution of risk) and information transfer between individuals are equally important points. These hypotheses are looked at in detail and found to be more complicated and closely related than they first appear, as attack abatement is the result of the joint action of “encounter-dilution” and “many-eyes”. Further benefits of grouping include defence against parasites (horses); communual defence (lions); foraging benefits and group hunting (African wild dogs); finding a mate (lekking behaviour); keeping warm (mice); and travelling more efficiently in air (pelicans); on water (ducklings) and under water (fish).

Further chapters look at costs to grouping such as increased attack rate on larger groups; the mechanisms that govern the evolution and maintenance of grouping behaviour throughout the animal kingdom, and the factors that control group size and group composition in particular situations. The authors discuss the theory of assortativeness; predator preference for “odd” prey, and environmental effects on grouping behaviour, such as desert locust behavioural changes induced by crowding.

“Living in Groups” will appeal to those working in the field of animal behaviour, and it is not aimed at the lay reader, nor is it intended to be an encyclopaedia of grouping animals species. The reader is guided to the more specialised literature for further reading on certain topics with thirty pages of references.

Readers will learn a great deal about aspects of grouping and many interesting questions that have still to be addressed. The authors believe that our understanding of the nature of grouping in animals can be greatly improved and their warm concluding remark invites the reader to “join us in this research endeavour, and help make this book out of date!”
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