The Effect of Incremental Reserve Design and Changing Reservation Goals on the Long-Term Efficiency of Reserve Systems

Selecting reserve areas based on percentages, such as 10% or 12% of a bioregion, is common in conservation planning despite widespread admission that such percentages are arbitrary and likely to be inadequate for the conservation of all biodiversity. Reserve systems based on these relatively low per...centage targets are likely to require expansion in the future, resulting in the assembly of reserve systems over many years (incremental reserve design). How then will incremental reserve design, such as increasing percentage targets over time, affect the long-term efficiency of marine reserve systems? We used South Australia as a case study to investigate how changing percentage targets affects the contribution of individual planning units to efficient reserve design. Selection frequency countsprovided a measure of a planning unit's conservation value. For the majority of planning units, changing targets led to a change in their conservation value indicating, for example, that planning units identified as high-value sites at a low-percentage conservation target may be of lesser importance when targets are increased. Despite the variability in the value of individual planning units at different targets, there was no loss in efficiency from incremental design of reserve systems based on Ausführliche Beschreibung Beschreibung ausblenden

1. Person:	Ball, Ian R. verfasserin
Weitere Personen:	Possingham, Hugh P. verfasserin
Quelle:	in Conservation biology : the journal of the Society for Conservation Biology Vol. 21, No. 2 (2007), p. 346-354 Weitere Artikel
Format:	Online-Artikel
Sprache:	English
Veröffentlicht:	2007
Beschreibung:	Online-Ressource
Schlagworte:	research-article Conservation Planning Conservation Targets Efficiency Incremental Reserve Design Irreplaceability Marine Biodiversity Marine Reserves
Online Zugang:	Volltext
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Anmerkung:	Copyright: Copyright 2007 Society for Conservation Biology