Biogeographic regions of the Iberian Peninsula: butterflies as biogeographical indicators

Romo, Helena; García‐Barros, Enrique

doi:10.1111/j.1469-7998.2010.00730.x

Cited by 15 publications

(10 citation statements)

References 47 publications

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“…Its climatic complexity and the occurrence of historic events have been pointed as major drivers of the emergent biogeographic patterns and endemism origins (Garcia- Barros et al 2002;Filipe et al 2009;Romo and García-Barros 2010). In this study, we investigated the biogeographic patterns of spider assemblages along the western Atlantic coast of the Iberian Peninsula, characterized by a strong gradient of mediterraneity.…”

Section: Discussionmentioning

confidence: 99%

Biogeographic patterns of spiders in coastal dunes along a gradient of mediterraneity

et al. 2011

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The Iberian Peninsula is recognized for its high levels of species richness, rarity and endemicity. Our main aim was to study biogeographic patterns of spiders in coastal dunes along a gradient of mediterraneity. Distance-decay of similarity, nestedness and co-occurrence metrics were used to explore spider' distribution patterns. A similarity analysis was performed in order to obtain a hierarchical classification of sites. Indicator species analysis was conducted to identify indicator species for the various clustering levels of the site typology. The differentiation among assemblages was further explored by non-metric multidimensional scaling (NMDS) and analysis of similarities (ANOSIM). Assemblages' similarity among sites decreased with climatic/geographic distance. The observed values of nestedness metrics (T and NODF) were not significant, while the co-occurrence metrics (C-score and Checkerboard units) were higher than expected by chance. Cluster analysis showed that spider' assemblages were structured along a gradient from North to South, forming four geographically distinct clusters. ANOSIM tests and NMDS supported the biogeographic patterns identified by cluster analysis. Several indicator species were found for the different levels of the hierarchic site typology. Spider assemblages revealed a high degree of biogeographical structure along the Atlantic coast of the Iberian Peninsula. The coast is a ''biogeographic crossroad'', encompassing faunistic elements of different origins. The hierarchic typology of sites is generally consistent with the major biogeographic regions and the thermoclimatic belts recognized for the region.Our results indicate that the climatic gradient and historic factors played a key role in the current spiders' biogeographic patterns.

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Section: Discussionmentioning

confidence: 99%

Biogeographic patterns of spiders in coastal dunes along a gradient of mediterraneity

et al. 2011

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“…It covers nearly 600 000 km 2 and it is bordered to the south and east by the Mediterranean Sea and to the north and west by the Atlantic Ocean, being divided from the rest of Europe by the Pyrenees mountain range in the north‐east. It has a very heterogeneous topography and is roughly characterized by two main biogeographical regions: Eurosiberian and Mediterranean (Sillero et al ., ; Romo & García‐Barros, ).…”

Section: Methodsmentioning

confidence: 99%

Influences of ecology and biogeography on shaping the distributions of cryptic species: three bat tales in Iberia

Santos

Juste

Ibáñez

et al. 2014

Biol J Linn Soc Lond

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To determine what shapes the distributions of cryptic species, we aimed to unravel ecological niches and geographical distributions of three cryptic bat species complexes in Iberia, Plecotus auritus/begognae, Myotis mystacinus/alcathoe and Eptesicus serotinus/isabellinus (with 44, 69, 66, 27, 121 and 216 records, respectively), considering ecological interactions and biogeographical patterns. Species distribution models (SDMs) were built using a presence‐only technique (Maxent), incorporating genetically identified species records with environmental variables (climate, habitat, topography). The most relevant variables for each species’ distribution and respective response curves were then determined. SDMs for each species were overlapped to assess the contact zones within each complex. Niche analyses were performed using niche metrics and spatial principal component analyses to study niche overlap and breadth. The Plecotus complex showed a parapatric distribution, although having similar biogeographical affinities (Eurosiberian), possibly explained by competitive exclusion. The Myotis complex also showed Eurosiberian affinities, with high overlap between niches and distribution, suggesting resource partitioning between species. Finally, E. serotinus was associated with Eurosiberian areas, while E. isabellinus occurred in Mediterranean areas, suggesting possible competition in their restricted contact zone. This study highlights the relevance of considering potential ecological interactions between similarly ecological species when assessing species distributions. © 2014 The Linnean Society of London, Biological Journal of the Linnean Society, 2014, 112,150–162.

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“…However, our analyses have shown the pertinence of combining the Balearic archipelago together with the Iberian Peninsula in biogeographical analyses of the western Mediterranean, as in some previous studies (e.g. Pichi Sermolli et al ., ; Carrascal & Lobo, ; Moreno Saiz & Lobo, ; but see Romo & García‐Barros, ). Both cluster analysis and PAE retained the Balearic Islands as an ingroup of the eastern Iberian–Balearic territory and only separated the two at higher branching levels.…”

Section: Discussionmentioning

confidence: 99%

“…For example, 25% of the Mediterranean glacial refugia identified by Médail & Diadema () are located in Iberia and the Balearic Islands. Biogeographical analyses of the Iberian Peninsula together with the Balearic archipelago have been carried out to establish spatial patterns using different taxonomic groups (i.e. Sainz Ollero & Hernández Bermejo, ; García Barros et al ., ; Rivas‐Martínez et al ., ; Carrascal & Lobo, ; Moreno Saiz & Lobo, ; Romo & García‐Barros, ; see Table ). However, other authors have studied Iberia separately to avoid the complications that inclusion of species of the archipelago may create (Márquez et al ., , ; Vargas et al ., ). Previous studies of south‐western Europe were based on incomplete or insufficiently large datasets, representing fewer taxa and so did not include the full range of plant biodiversity.…”

Section: Introductionmentioning

confidence: 98%

“…Biogeographical analyses of the Iberian Peninsula together with the Balearic archipelago have been carried out to establish spatial patterns using different taxonomic groups (i.e. Sainz Ollero & Hernández Bermejo, 1985;García Barros et al, 2002;Rivas-Martínez et al, 2002;Carrascal & Lobo, 2003;Moreno Saiz & Lobo, 2008;Romo & García-Barros, 2010; see Table 1). However, other authors have studied Iberia separately to avoid the complications that inclusion of species of the archipelago may create (Márquez et al, 1997(Márquez et al, , 2001Vargas et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

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New insights into the biogeography of south‐western Europe: spatial patterns from vascular plants using cluster analysis and parsimony

Saiz

Donato

Katinas

et al. 2012

Journal of Biogeography

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Aim We analysed the distributional pattern of the vascular flora of the Iberian Peninsula and Balearic archipelago using cluster and parsimony methods to delineate a biogeographical scheme for south‐western Europe and to compare the results with previous regionalizations. Additionally, we aim to identify areas of endemism. Location South‐western Europe (Iberian Peninsula and the Balearic Islands). Methods Pattern analysis of a chorological dataset, consisting of the occurrences of 3041 vascular plant species in each of the 50 km × 50 km UTM cells of a grid covering Iberia and the Balearic Islands, was based on cluster analysis (unweighted pair‐group method using arithmetic averages; UPGMA) and parsimony analysis of endemicity (PAE). The Jaccard similarity index was used in the UPGMA, and the set of most parsimonious trees from the PAE were summarized in a 75% majority consensus tree. Results The UPGMA dendrogram delineated two main branches in the study region: (1) an eastern area of six sectors including the Balearic Islands plus those regions of Iberia with basic substrates, and (2) a western area with three sectors comprising the regions with acidic soils. The majority rule consensus tree of 53 most parsimonious trees from PAE showed eight main clades similarly separating eastern Iberia plus the Balearic Islands with their basic substrates, from western Iberia with its acidic and basic substrates; in addition the PAE tree showed some previously undetected chorological patterns. Main conclusions The use of large and inclusive datasets allows for the recognition of different spatial patterns from those obtained using a limited number of endemic or indicator species. The analyses support some floristic regions previously recognized for Iberia, but not the classic Eurosiberian–Mediterranean division, and some transition territories. Our recognition of 19 areas of endemism consisting of two or more cells and 60 consisting of one cell in south‐western Europe is new.

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Biogeographic regions of the Iberian Peninsula: butterflies as biogeographical indicators

Cited by 15 publications

References 47 publications

Biogeographic patterns of spiders in coastal dunes along a gradient of mediterraneity

Biogeographic patterns of spiders in coastal dunes along a gradient of mediterraneity

Influences of ecology and biogeography on shaping the distributions of cryptic species: three bat tales in Iberia

New insights into the biogeography of south‐western Europe: spatial patterns from vascular plants using cluster analysis and parsimony

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