Journal Article10.1007/S10531-014-0738-Y
Disentangling the effects of available area, mid-domain constraints, and species environmental tolerance on the altitudinal distribution of tenebrionid beetles in a Mediterranean area
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TL;DR: The integrated approach used in this study demonstrates that neither MDE nor monotonic patterns fully explain the observed diversity patterns, which indicate that the elevational gradient filters species according to their ecological tolerance.
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Abstract: Most studies have attempted to identify the major environmental factors responsible for elevational variations in species richness. Such studies have been mainly performed in temperate and tropical areas, whereas the mediterranean biome has been substantially neglected. The aim of this paper was to disentangle the effects of available area, mid-domain constraints, and the environmental tolerance of species, on the altitudinal distribution of tenebrionid beetles in a Mediterranean region. A comprehensive faunistic database was used to assess the elevational distribution of tenebrionids in Latium (Central Italy). Variations in species richness, beta diversity and nestedness were analysed in association with variation in species ranges and midpoints. Variation in species richness was contrasted with patterns expected on the basis of the mid domain effect (MDE) and available surface area. After correcting for differences in area availability due to the conical shape of mountains, an unexpected triphasic pattern emerged: (1) at low altitudes, species richness was higher than expected on the basis of the effect of area and the MDE; (2) at around 800 m elevation, there is an abrupt change in species assemblages, and richness values fit those predicted by the MDE; (3) a new dramatic change occurred at 1,700 m, with tenebrionid assemblages composed of a small number of mainly eurytopic species. The integrated approach used in this study demonstrates that neither MDE nor monotonic patterns fully explain the observed diversity patterns. Variations in species ranges indicate that the elevational gradient filters species according to their ecological tolerance.
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Citations
Birds in the Himalayas: What drives beta diversity patterns along an elevational gradient?
Yiming Hu,Yiming Hu,Zhifeng Ding,Zhigang Jiang,Qing Quan,Keji Guo,Liqiao Tian,Huijian Hu,Luke Gibson +8 more
TL;DR: Beta diversity of bird communities in Gyirong Valley could be explained by the combination of different factors but is mainly shaped by the spatially structured environmental factors, especially contemporary climate.
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Variations in Plant Richness, Biogeographical Composition, and Life Forms along an Elevational Gradient in a Mediterranean Mountain.
Letizia Di Biase,Loretta Pace,Cristina Mantoni,Simone Fattorini +3 more
- 01 Oct 2021
TL;DR: In this article, the authors investigated elevational patterns in species richness, biogeographical composition (chorotypes) and life forms (Raunkiaer classification) along an elevational gradient in a Mediterranean mountain (Central Italy).
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Recognizing and interpreting vegetational belts: New wine in the old bottles of a von Humboldt's legacy
TL;DR: In this paper, the authors use spatially constrained cluster analysis to identify belts in the context of identifying elevational subdivisions in mountain ecosystems, which can be used to set a framework for ecological studies but cannot be considered a surrogate of belts.
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Elevational Patterns of Generic Diversity in the Tenebrionid Beetles (Coleoptera Tenebrionidae) of Latium (Central Italy)
Simone Fattorini,Cristina Mantoni,Letizia Di Biase,Giovanni Strona,Loretta Pace,Maurizio Biondi +5 more
TL;DR: The results support the environmental filtering hypothesis for the species composition of tenebrionid beetles along an elevational gradient and suggest that geophilous species are more sensitive to variation in environmental factors, and that the advantages of close relationships are greater than the possible drawbacks.
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Andrés Baselga,Lope Gómez de Marzoa +1 more
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