Segregation effects and the impoverishment of savanna parks: the case for ecosystem viability analysis

作者: DAVID WESTERN , HELEN GICHOHI

DOI: 10.1111/J.1365-2028.1993.TB00541.X

关键词:

摘要: ummary The coarse resolution of biogeographic models does not lend itself to the urgent and specific problems confronting national parks. An alternative approach is identify a suite common various types parks ecosystems. Such scale-relevant can be applied directly management solutions in particular park and, more generally, policies for managing similar ecological regional setting. Segregation effects, threats arising from creation protected area itself, offer examples with immediate consequences than insularization effects. The underscores need minimum viable processes necessary maintaining ecosystem diversity. We suggest an viability analysis as suitable technique doing so. Resume La ordinaire des modeles biogeographiques ne convient pas pour les problemes urgents et specifiques qui touchent parcs nationaux. Une approche consisterait identifier un ensemble de communs differents d'ecosystemes. telle ‘a l'echelle’ peut s'appliquer directement gestion dans parc en particulier et, plus generalement, une politique situes conditions regionales ou ecologiques similaires. Les effets segregation, menaces ordinaires nees la meme d'une aire protegee, offrent exemples immediates que celles l'insularisation. Cette souligne le besoin d'identifier processus viables, necessaires au maintien diversite biologique. Nous sommes d'avis qu'une analyse viabilite d'un ecosysteme serait souhaitable ce but.

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