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Scale dependence of native and alien species richness in North American floras / Michael W Palmer in Preslia, 78 (2006) 

Public Citation [article]  inPreslia > 78 (2006) . - 427-436 Titre : Scale dependence of native and alien species richness in North American floras Type de document : Électronique Auteurs : Michael W Palmer Année de publication : 2006 Article en page(s) : 427-436 Langues : Anglais (eng) Catégories : [CBNPMP-Géographique] Etats-Unis [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes Résumé : I analyzed data from 1870 vascular floras from regions within North America to assess whether the determinants of native and alien diversity vary as a function of spatial grain. Moving window multiple regression revealed that richness of both native and alien species exhibit the expected species-area relationship, latitudinal gradient, elevation gradient, and year of publication effect. However, the strength of these factors varied between native and alien species, and as a function of scale. Alien diversity was more predictable than native diversity, and is more strongly related to elevation and latitude. For both groups, the latitudinal gradient is most pronounced at broad grains, and the elevational gradient is most pronounced at fine grains. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=142470 Palmer, Michael W 2006 Scale dependence of native and alien species richness in North American floras. Preslia, 78: 427-436.

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