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Titolo:
INTERGROUP COMPETITION AND STABLE GROUP SIZES
Autore:
ZEMEL A; LUBIN Y;
Indirizzi:
BEN GURION UNIV NEGEV,JACOB BLAUSTEIN INST DESERT RES IL-84990 SEDE BOQER ISRAEL
Titolo Testata:
Animal behaviour
, volume: 50, anno: 1995,
parte:, 2
pagine: 485 - 488
SICI:
0003-3472(1995)50:<485:ICASGS>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANELOSIMUS-EXIMIUS ARANEAE; SOCIAL SPIDER; PREY CAPTURE; LIONS; THERIDIIDAE; COOPERATION; ADVANTAGES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
A. Zemel e Y. Lubin, "INTERGROUP COMPETITION AND STABLE GROUP SIZES", Animal behaviour, 50, 1995, pp. 485-488

Abstract

The stability of the sizes of foraging groups of animals is reviewed with a special emphasis on the effect of inter-group competition. A simple model, in which cooperation, within-group and inter-group competition are explicitly accounted for, shows that when resources are scarce and patchy, inter-group competition tends to keep animals within their groups, even when these groups are overpopulated. The model's conclusions are in accord with empirical observations indicating that animals tend to forage in groups that are larger than the expected optimal size. (C) 1995 The Association for the Study of Animal Behaviour

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 09:53:56