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Titolo:
Dependence of sustainability on the configuration of marine reserves and larval dispersal distance
Autore:
Botsford, LW; Hastings, A; Gaines, SD;
Indirizzi:
Univ Calif Davis, Dept Wildlife Fish & Conservat Biol, Davis, CA 95616 USAUniv Calif Davis Davis CA USA 95616 & Conservat Biol, Davis, CA 95616 USA Univ Calif Davis, Dept Environm Sci & Policy, Davis, CA 95616 USA Univ Calif Davis Davis CA USA 95616 onm Sci & Policy, Davis, CA 95616 USA Univ Calif Santa Barbara, Inst Marine Sci, Dept Ecol Evolut & Marine Biol,Santa Barbara, CA 93106 USA Univ Calif Santa Barbara Santa Barbara CA USA 93106 Barbara, CA 93106 USA
Titolo Testata:
ECOLOGY LETTERS
fascicolo: 2, volume: 4, anno: 2001,
pagine: 144 - 150
SICI:
1461-023X(200103)4:2<144:DOSOTC>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
BIOLOGICAL REFERENCE POINTS; FISHERIES MANAGEMENT; RECRUITMENT; POPULATIONS; CONSERVATION; EXPLOITATION; CONNECTIVITY; ECOSYSTEMS; DYNAMICS; HABITATS;
Keywords:
marine reserves; dispersal; sustainability; fisheries; uncertainty;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Botsford, LW Univ Calif Davis, Dept Wildlife Fish & Conservat Biol, Davis,CA 95616 USA Univ Calif Davis Davis CA USA 95616 iol, Davis, CA 95616 USA
Citazione:
L.W. Botsford et al., "Dependence of sustainability on the configuration of marine reserves and larval dispersal distance", ECOL LETT, 4(2), 2001, pp. 144-150

Abstract

Marine reserves hold promise for maintaining biodiversity and sustainable fishery management, but studies supporting them have not addressed a crucial aspect of sustainability: the reduction in viability of populations with planktonic larvae dispersing along a coastal habitat with noncontiguous marine reserves. We show how sustainability depends on the fraction of naturallarval settlement (FNLS) remaining after reserves are implemented, which in turn depends on reserve configuration and larval dispersal distance. Sustainability requires FNLS to be greater than an empirically determined minimum, Maintaining an adequate value for all species requires either a large, unlikely fraction (> 35%) of coastline in reserves, or reserves that are larger than the mean larval dispersal distance of the target species. FNLS isgreater for species dispersing shorter distances, which implies reserves can lead to: (1) changes in community composition and (2) genetic selection fur shorter dispersal distance. Dependence of sustainability on dispersal distance is a new source of uncertainty.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 01:50:19