Living in groups
The benefits of group formation -- Anti-predator vigilance -- The classical many-eyes theory -- How individual vigilance works -- Information transfer between individuals -- Some unanswered questions on group vigilance -- Dilution of risk -- Avoidance, dilution, and abatement -- Predator swamping --...
Gespeichert in:
| 1. Verfasser: | |
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| Weitere Verfasser: | |
| Format: | UnknownFormat |
| Sprache: | eng |
| Veröffentlicht: |
Oxford u.a.
Oxford University Press
2002
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| Schriftenreihe: | Oxford series in ecology and evolution
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| Schlagworte: | |
| Online Zugang: | Inhaltsverzeichnis Verlagsangaben |
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Tag hinzufügen | Zusammenfassung: | The benefits of group formation -- Anti-predator vigilance -- The classical many-eyes theory -- How individual vigilance works -- Information transfer between individuals -- Some unanswered questions on group vigilance -- Dilution of risk -- Avoidance, dilution, and abatement -- Predator swamping -- The Selfish herd -- Defence against parasites -- Predator confusion -- Theory -- Empirical support for theoretical predictions -- Cognitive limitations -- Communal defence against predators -- Predator learning -- Foraging benefits to grouping -- Benefits for predators -- Finding food -- Finding a mate -- Conserving heat and water -- Reducing the energetic costs of movement -- Movement in water -- Movement in air -- Some costs to grouping -- Increased attack rate on larger groups -- Foraging in a group -- Kleptoparasitism -- Aggression more generally -- Pseudo-interference -- Shadow interference of sit and wait predators -- Just getting in each other's way -- Prey response to detected predators -- A note on generality -- Increased parasite burdens -- Misdirected parental care -- Cuckoldry -- Brood parasitism and adoption -- The size of a group -- Combining costs and benefits of grouping -- An illustrative example -- The shape of the fitness function -- Are optimal group sizes likely to be seen in nature? -- An argument why groups should be larger than optimal -- Refinements of the argument -- The role of relatedness -- The influence of competition -- The effect of dominance hierarchies. The benefits of group formation -- Anti-predator vigilance -- The classical many-eyes theory -- How individual vigilance works -- Information transfer between individuals -- Some unanswered questions on group vigilance -- Dilution of risk -- Avoidance, dilution, and abatement -- Predator swamping -- The Selfish herd -- Defence against parasites -- Predator confusion -- Theory -- Empirical support for theoretical predictions -- Cognitive limitations -- Communal defence against predators -- Predator learning -- Foraging benefits to grouping -- Benefits for predators -- Finding food -- Finding a mate -- Conserving heat and water -- Reducing the energetic costs of movement -- Movement in water -- Movement in air -- Some costs to grouping -- Increased attack rate on larger groups -- Foraging in a group -- Kleptoparasitism -- Aggression more generally -- Pseudo-interference -- Shadow interference of sit and wait predators -- Just getting in each other's way -- Prey response to detected predators -- A note on generality -- Increased parasite burdens -- Misdirected parental care -- Cuckoldry -- Brood parasitism and adoption -- The size of a group -- Combining costs and benefits of grouping -- An illustrative example -- The shape of the fitness function -- Are optimal group sizes likely to be seen in nature? -- An argument why groups should be larger than optimal -- Refinements of the argument -- The role of relatedness -- The influence of competition -- The effect of dominance hierarchies. |
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| Beschreibung: | Hier auch später erschienene, unveränderte Nachdrucke |
| Beschreibung: | XIV, 210 S graph. Darst 24cm |
| ISBN: | 0198508174 0-19-850817-4 0198508182 0-19-850818-2 9780198508175 978-0-19-850817-5 |