Factors in habitat partitioning in Pseudotropheus aurora (Pisces: Cichlidae), an introduced species to a species-rich community of Lake Malawi

Autor:	E. Hert
Rok vydání:	1990
Předmět:	Habitat Cichlid Pseudotropheus aurora Ecology Introduced species Interspecific competition Aquatic Science Territoriality Biology Endemism biology.organism_classification Site specificity Ecology Evolution Behavior and Systematics
Zdroj:	Journal of Fish Biology. 36:853-865
ISSN:	1095-8649 0022-1112
DOI:	10.1111/j.1095-8649.1990.tb05633.x
Popis:	The territorial behaviour of a small rock-dwelling cichlid, Pseudotropheus aurora, was studied at Thumbi Island West at the southern end of Lake Malawi. P. aurora is one of several species that have been introduced to an already diverse fish community. Many of the endemic and introduced species are highly territorial. The coexistence of an introduced territorial species within a speciesrich community of other territorial species is examined. Territories from which P. aurora individuals were removed were invariably re-occupied by conspecifics. Similarly, when all territories of a certain area were emptied of all territory owners of any existing species, the former P. aurora territories were re-occupied by conspecifics. The possible roles of site specificity, competitive exclusion and behaviourally transmitted traditions regarding territories are discussed.
Databáze:	OpenAIRE
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