NDLI: Eco-geographical factors affecting richness and phylogenetic diversity patterns of high-mountain flora in the Iberian Peninsula

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Eco-geographical factors affecting richness and phylogenetic diversity patterns of high-mountain flora in the Iberian Peninsula

Alpine Botany : Volume 125, Issue 1, April 2015

Alpine Botany : Volume 124

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Eco-geographical factors affecting richness and phylogenetic diversity patterns of high-mountain flora in the Iberian Peninsula

Content Provider	Springer Nature Link
Author	Loidi, Javier Campos, Juan Antonio Herrera, Mercedes Biurrun, Idoia García Mijangos, Itziar García Baquero, Gonzalo
Copyright Year	2015
Abstract	Many studies have highlighted the importance of mountain ecosystems as hotspots of biodiversity and endemism. In this study, we used biogeographic partitioning to explore the diversity patterns of high-mountain flora in south-western Europe by analysing the richness of the main floristic elements in relation to geographical and ecological factors (climate, isolation, elevation, etc.). Taxa that inhabit above 1600 m a.s.l. in the Iberian Peninsula were selected using bibliographic sources. Hierarchical agglomerative clustering and non-metric multidimensional scaling (NMDS) were used to explore the patterns of taxonomic diversity across the main biogeographic elements. Six environmental variables were calculated to account for inter-range variation in species richness and biogeographic elements. The results showed that at a broad scale, the main floristic elements correlated with specific eco-geographical factors. The Arctic–Boreal element was strongly, negatively correlated with summer drought and showed a higher taxonomic distinctness than expected. The Iberian endemic element was related to isolation and maximum elevation and although it was the richest element, it demonstrated a relatively low taxonomic diversity, in particular in the Baetic Range. Biogeographic origin is an important driver of the diversity patterns of high-mountain flora. In the Iberian Peninsula, these patterns show a North–South gradient, which reflects historical processes of migration and speciation that were constrained by climatic fluctuations during the Ice Ages. Although species richness is the usual biodiversity measure considered in conservation strategies, the use of taxonomically related indices helps to understand better the general diversity patterns and to better document strategies of biodiversity conservation.
Starting Page	137
Ending Page	146
Page Count	10
File Format	PDF
ISSN	16642201
Journal	Alpine Botany
Volume Number	125
Issue Number	2
e-ISSN	1664221X
Language	English
Publisher	Springer Basel
Publisher Date	2015-06-30
Publisher Place	Basel
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Elevation Endemism Biogeography Isolation NMDS Taxonomic diversity Plant Sciences Plant Ecology Ecology Life Sciences Forestry
Content Type	Text
Resource Type	Article
Subject	Plant Science Ecology, Evolution, Behavior and Systematics

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