Data from: Phylogenetic and morphological relationships between nonvolant small mammals reveal assembly processes at different spatial scales
Luza, André Luís, Federal University of Rio Grande do Sul
Gonçalves, Gislene Lopes, Federal University of Rio Grande do Sul
Hartz, Sandra Maria, Federal University of Rio Grande do Sul
Published Dec 31, 2015 on Dryad.
Cite this dataset
Luza, André Luís; Gonçalves, Gislene Lopes; Hartz, Sandra Maria (2015). Data from: Phylogenetic and morphological relationships between nonvolant small mammals reveal assembly processes at different spatial scales [Dataset]. Dryad. https://doi.org/10.5061/dryad.nf2h5
The relative roles of historical processes, environmental filtering, and ecological interactions in the organization of species assemblages vary depending on the spatial scale. We evaluated the phylogenetic and morphological relationships between species and individuals (i.e., inter- and intraspecific variability) of Neotropical nonvolant small mammals coexisting in grassland-forest ecotones, in landscapes and in regions, that is, three different scales. We used a phylogenetic tree to infer evolutionary relationships, and morphological traits as indicators of performance and niche similarities between species and individuals. Subsequently, we applied phylogenetic and morphologic indexes of diversity and distance between species to evaluate small mammal assemblage structures on the three scales. The results indicated a repulsion pattern near forest edges, showing that phylogenetically similar species coexisted less often than expected by chance. The strategies for niche differentiation might explain the phylogenetic repulsion observed at the edge. Phylogenetic and morphological clustering in the grassland and at the forest interior indicated the coexistence of closely related and ecologically similar species and individuals. Coexistence patterns were similar whether species-trait values or individual values were used. At the landscape and regional scales, assemblages showed a predominant pattern of phylogenetic and morphological clustering. Environmental filters influenced the coexistence patterns at three scales, showing the importance of phylogenetically conserved ecological tolerances in enabling taxa co-occurrence. Evidence of phylogenetic repulsion in one region indicated that other processes beyond environmental filtering are important for community assembly at broad scales. Finally, ecological interactions and environmental filtering seemed important at the local scale, while environmental filtering and historical colonization seemed important for community assembly at broader scales.
Data is organized in dynamic spreadsheets. Basic trapping unity was a sampling point composed by two traps (See Sampling of non-volant small mammals on Material and methods). Sampling unities used in data analysis were transects composed by eight trapping points. The file “Data_bank_Luza_et_al.” is composed by two spreadsheets: Occurrence_data and Individual_traits. Species traits and information about phylogenetic reconstruction will be available with the manuscript and appendices.