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dc.contributor.authorIrl, Severin D.H.
dc.contributor.authorHarter, David E. V.
dc.contributor.authorSteinbauer, Manuel J.
dc.contributor.authorGallego Puyol, David
dc.contributor.authorFernández-Palacios, José María 
dc.contributor.authorJentsch, Anke
dc.contributor.authorBeierkuhnlein, Carl
dc.date.accessioned2019-10-24T16:39:56Z
dc.date.available2019-10-24T16:39:56Z
dc.date.issued2015
dc.identifier.urihttp://riull.ull.es/xmlui/handle/915/16885
dc.description.abstractClimate and topography are among the most fundamental drivers of plant diversity. Here, we assessed the importance of climate and topography in explaining diversity patterns of species richness, endemic richness and endemicity on the landscape scale of an oceanic island and evaluated the independent contribution of climatic and topographic variables to spatial diversity patterns. 2. We constructed a presence/absence matrix of perennial endemic and native vascular plant species (including subspecies) in 890 plots on the environmentally very heterogeneous island of La Palma, Canary Islands. Species richness, endemic richness and endemicity were recorded, interpolated and related to climate (i.e. variables describing temperature, precipitation, variability and climatic rarity) and topography (i.e. topographic complexity, solar radiation, geologic age, slope and aspect). We used multimodel inference, spatial autoregressive models, variance partitioning and linear regression kriging as statistical methods. 3. Species richness is best explained by both climatic and topographic variables. Topographic variables (esp. topographic complexity and solar radiation) explain endemic richness, and climatic variables (esp. elevation/temperature and rainfall seasonality) explain endemicity. Spatial patterns of species richness, endemic richness and endemicity were in part geographically decoupled from each other. 4. Synthesis. We identified several topography-dependent processes ranging from evolutionary processes (micro-refugia, in situ speciation, pre-adaptation to rupicolous conditions, dispersal limitations) to human-induced influences (introduced herbivores, fire, land use) that possibly shape the endemic richness pattern of La Palma. In contrast, climate mainly drives endemicity, which is connected to ecological speciation and specialization to local conditions. We highlight the importance of incorporating climatic variability into future studies of plant species diversity and endemism. The spatial incongruence in hot spots of species richness, endemic richness and endemicity emphasizes the need for an integrated conservation approach acknowledging different diversity measures to protect the complete spectrum of diversity. High-elevation islands such as La Palma are highly suitable to study drivers of diversity and endemism, as they offer environmental gradients of continental magnitude on the landscape scale of a single climatic mini-continent and a large array of in situspeciated endemics.es_ES
dc.language.isoenes_ES
dc.publisherBritish Ecological Societyes_ES
dc.relation.ispartofseriesJournal of Ecology;
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleClimate vs. topography – spatial patterns of plant species diversity and endemism on a high-elevation islandes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.identifier.doi0.1111/1365-2745.12463
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.subject.keywordCanary Islandses_ES
dc.subject.keywordClimatic rarityes_ES
dc.subject.keywordClimatic stabilityes_ES
dc.subject.keywordIsland ecologyes_ES
dc.subject.keywordLandscape ecologyes_ES
dc.subject.keywordLandscape scalees_ES
dc.subject.keywordMini-continentes_ES
dc.subject.keywordMultimodel inferencees_ES
dc.subject.keywordSpatial ecologyes_ES
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersiones_ES


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