DISEASE AND COMMUNITY STRUCTURE - THE IMPORTANCE OF HOST SELF-REGULATION IN A HOST-HOST-PATHOGEN MODEL

BEGON, M; BOWERS, RG; KADIANAKIS, N; HODGKINSON, DE

dc.contributor.author	BEGON, M	en
dc.contributor.author	BOWERS, RG	en
dc.contributor.author	KADIANAKIS, N	en
dc.contributor.author	HODGKINSON, DE	en
dc.date.accessioned	2014-03-01T01:41:24Z
dc.date.available	2014-03-01T01:41:24Z
dc.date.issued	1992	en
dc.identifier.issn	0003-0147	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/23483
dc.subject.classification	Ecology	en
dc.subject.classification	Evolutionary Biology	en
dc.subject.other	ENEMY FREE SPACE	en
dc.subject.other	INTERSPECIFIC COMPETITION	en
dc.subject.other	ECOLOGICAL COMMUNITIES	en
dc.subject.other	POPULATION-DYNAMICS	en
dc.subject.other	FIELD EXPERIMENTS	en
dc.subject.other	PREY COMMUNITIES	en
dc.subject.other	PARASITES	en
dc.subject.other	PREDATION	en
dc.subject.other	COEXISTENCE	en
dc.title	DISEASE AND COMMUNITY STRUCTURE - THE IMPORTANCE OF HOST SELF-REGULATION IN A HOST-HOST-PATHOGEN MODEL	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1992	en
heal.abstract	A model is examined of two hosts sharing a directly transmitted pathogen where for the first time both hosts are also subject to self-regulation. The model provides insights into the manner in which self- and pathogen regulation combine in determining the coexistence or otherwise of hosts and the structure of biological communities generally. A number of outcomes are possible: coexistence of both hosts with the pathogen, coexistence of both hosts without the pathogen, the predictable elimination of one host by the other, which then remains with the pathogen, and the elimination of either host by the other, contingent on initial densities. However, whereas without self-regulation coexistence of both hosts with their shared pathogen can only be achieved by the partitioning of enemy-free space, with self-regulation there is a wider range of paths, including coexistence mediated by the hosts' resources (analogous to "exploiter-mediated coexistence"), coexistence mediated by interspecific transmission, and coexistence arising when elements of these other mechanisms are combined. Also, a more affected, "regulated-alone" host can eliminate a less affected, "nonregulated-alone" host, but not vice versa; whereas without self-regulation only the opposite outcome is possible. The incorporation of self-regulation adds a necessary element of realism.	en
heal.publisher	UNIV CHICAGO PRESS	en
heal.journalName	AMERICAN NATURALIST	en
dc.identifier.isi	ISI:A1992HY08900001	en
dc.identifier.volume	139	en
dc.identifier.issue	6	en
dc.identifier.spage	1131	en
dc.identifier.epage	1150	en