Determinant variables of Iberian Peninsula Aphodiinae diversity (Coleoptera, Scarabaeoidea, Aphodiidae)

Lobo, Jorge M.

doi:10.1111/j.1365-2699.2006.01485.x

Cited by 16 publications

(14 citation statements)

References 109 publications

(197 reference statements)

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“…The importance of the peculiarities of the mediterranean climate on the structuring of arthropod communities has been repeatedly reported in several studies: butterflies (Hortal et al. , 2004), dung beetles (Cabrero‐Sañudo & Lobo, 2006), solitary wasps (González et al. , 2009) and leaf beetles (Baselga & Jiménez‐Valverde, 2007).…”

Section: Discussionmentioning

confidence: 77%

Determinants of beta diversity of spiders in coastal dunes along a gradient of mediterraneity

Carvalho

Cardoso

Crespo

et al. 2010

Diversity and Distributions

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Aim The Mediterranean Basin is recognized for its high levels of species richness, rarity and endemicity. Our main aim was to evaluate the relative effects of environmental and spatial variables and their scale‐specific importance on beta diversity patterns along a gradient of mediterraneity, using spiders as a model group. Location This study was carried out in 18 coastal dune sites along the Portuguese Atlantic coast. This area encompasses 445 km and comprises two distinct biogeographic regions, Eurosiberian (northern coast) and Mediterranean (centre and south). Methods A forward selection procedure was carried out to select environmental and spatial variables responsible for determining beta diversity patterns. Variation partitioning and principal coordinates of neighbour matrices (PCNM) were used to estimate the contribution of pure environmental and pure spatial effects and their shared influence on beta diversity patterns and to estimate the relative importance of environmental structured variation and pure spatial variation at multiple spatial scales. Results Climate, ground vegetation dune cover and area were selected by a forward selection procedure. The same procedure identified three PCNM variables, all corresponding to large and medium spatial scales. Variation partitioning revealed that 46.1% of the variation of beta diversity patterns was explained by a combination of environmental and PCNM variables. Most of this variation (42.5%) corresponded to spatial variation (environmental spatially structured and pure spatial). Climate and vegetation structure influences were predominant at the PCNM1 and PCNM3 scales, while area was more important at the intermediate PCNM2 scale. Main conclusions Our study revealed that beta diversity of spiders was primarily controlled by a broad‐scale gradient of mediterraneity. The relative importance of environmental variables on the spider assemblage composition varied with spatial scale. This study highlights the need of considering the scale‐specific influence of niche and neutral processes on beta diversity patterns.

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Section: Discussionmentioning

confidence: 77%

Determinants of beta diversity of spiders in coastal dunes along a gradient of mediterraneity

Carvalho

Cardoso

Crespo

et al. 2010

Diversity and Distributions

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“…Temperatures, in particular, were expected to have positive effects on parasitic fungal species richness in their medium range but negative effects in their low and high ranges (Petzoldt & Seaman, 2006). These possible curvilinear relationships were accounted for by separately testing quadratic and cubic functions for each explanatory variable and transforming the variables before inclusion in the glm (see Nicholls, 1989; Heikkinen & Neuvonen, 1997; Lobo et al ., 2004; Moser et al ., 2005; Cabrero‐Sanudo & Lobo, 2006). The cubic function of the explanatory variable was selected if it gave a significantly lower residual deviance than the quadratic function (chi‐square test, P < 0.001).…”

Section: Methodsmentioning

confidence: 99%

“…Osborne et al ., 2001; Kuhn et al ., 2002; Kearney et al ., 2003; Gebre‐Michael et al ., 2004) or the spatial distribution of species richness within a taxonomic group (e.g. O’Brien, 1998; Wohlgemuth, 1998; Real et al ., 2003; Lobo et al ., 2004; Moser et al ., 2005; Cabrero‐Sanudo & Lobo, 2006). In contrast, they have seldom been used to interpret the spatial distribution of a single parasite species or the spatial distribution of parasite species richness (but see Cocu et al ., 2005; Cumming & Guegan, 2006).…”

Section: Introductionmentioning

confidence: 99%

Distribution of parasitic fungal species richness: influence of climate versus host species diversity

Vacher

Vile

Helion

et al. 2008

Diversity and Distributions

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One major challenge in parasitology and epidemiology is determining whether the richness of parasitic and infectious diseases simply tracks host diversity or is largely determined by exogenous factors, such as climate‐forced variables. We addressed this issue by analysing a 30‐year survey of fungal diseases in French forests. We first combined generalized linear models and stepwise analyses to select the habitat descriptors that may account for variations in parasitic fungal species richness. Our results suggest that host species diversity is not a major determinant of parasite richness. Temperature seasonality, host abundance, and the composition of host species assemblages may play a greater role. Then we used structural equation modelling to investigate the links between these habitat descriptors and parasitic fungal species richness. Our results showed that climatic and host species descriptors had not only direct effects on species richness, but also indirect effects (via host species and sampling effort, respectively). Our results also showed that the direct effects of climate and host species were roughly equal. We therefore conclude that it is important to take into account exogenous factors when investigating the potential causes of spatial variation in the richness of parasitic diseases, in particular for plant diseases.

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“…The Messinian Salinity Crisis (*5.5 Ma) caused the desiccation of the Mediterranean Sea, allowing the exchange of terrestrial animals between the Iberian Peninsula and Northern Africa (e.g. Cabrero-Sañudo and Lobo 2006). Later, the Iberian Peninsula played an important role as refugia during glacial-interglacial cycles of the Pleistocene, resulting in the differentiation and speciation of many taxa (Gómez and Lunt 2007;Jiménez-Moreno et al 2010).…”

Section: Introductionmentioning

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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Determinant variables of Iberian Peninsula Aphodiinae diversity (Coleoptera, Scarabaeoidea, Aphodiidae)

Cited by 16 publications

References 109 publications

Determinants of beta diversity of spiders in coastal dunes along a gradient of mediterraneity

Determinants of beta diversity of spiders in coastal dunes along a gradient of mediterraneity

Distribution of parasitic fungal species richness: influence of climate versus host species diversity

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

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