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Rank and colony defense against conspecifics in a facultatively eusocial hover wasp
2006
Behavioral Ecology
An important benefit of social living is increased capacity for defense. Highly eusocial species have often evolved a fighting caste for this purpose, but many facultatively eusocial insects and cooperatively breeding vertebrates lack morphological castes and the decision to defend or not can depend on costs and benefits to each individual. Defense by subordinates in a social group can be regarded as a form of helping, and helping input often varies among subordinates of different age or size.
doi:10.1093/beheco/arl091
fatcat:qt2ps6haxze6lekawwbi22kcse