Registro:
Título en inglés:
Native and alien grassland diversity respond differently to environmental and anthropogenic drivers across spatial scales
Autor/es:
Bergamin, Rodrigo Scarton; Ascensão, Fernando; Capinha, César; Galvão Bastazini, Vinicius Augusto; Andrade, Bianca Ott; Boldrini, Ilsi Iob; Lezama, Felipe; Altesor, Alice; Perelman, Susana Beatriz; Overbeck, Gerhard Ernst
Filiación:
Bergamin, Rodrigo Scarton. Universidade Federal do Rio Grande do Sul. Programa de Pós-Graduação em Botânica. Laboratório de Estudos em Vegetação Campestre. Porto Alegre, Brazil.
Ascensão, Fernando. Universidade de Lisboa. Faculdade de Ciências. Centre for Ecology, Evolution and Environmental Changes (CE3C). Lisbon, Portugal.
Capinha, César. Universidade de Lisboa. Instituto de Geografia e Ordenamento do Território – IGOT. Centro de Estudos Geográficos e Laboratório Associado Terra. Lisbon, Portugal.
Galvão Bastazini, Vinicius Augusto. University of Évora. Casa Cordovil. Rui Nabeiro Biodiversity Chair. Évora, Portugal.
Galvão Bastazini, Vinicius Augusto. University of Évora. Institute for Advanced Studies and Research. Environment and Development & Change – Global Change and Sustainability Institute. MED – Mediterranean Institute of Agriculture. Évora, Portugal.
Andrade, Bianca Ott. Universidade Federal do Rio Grande do Sul. Programa de Pós-Graduação em Botânica. Laboratório de Estudos em Vegetação Campestre. Porto Alegre, Brazil.
Boldrini, Ilsi Iob. Universidade Federal do Rio Grande do Sul. Programa de Pós-Graduação em Botânica. Laboratório de Estudos em Vegetação Campestre. Porto Alegre, Brazil.
Lezama, Felipe. Universidad de la República. Facultad de Agronomía. Departamento de Sistemas Ambientales. Montevideo, Uruguay.
Altesor, Alice. Universidad de la República. Facultad de Ciencias. Instituto de Ecología y Ciencias Ambientales. Grupo de Ecología de Pastizales. Montevideo, Uruguay.
Perelman, Susana Beatriz. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos y Sistemas de Información. Buenos Aires, Argentina.
Perelman, Susana Beatriz. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Perelman, Susana Beatriz. CONICET – Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
Overbeck, Gerhard Ernst. Universidade Federal do Rio Grande do Sul. Programa de Pós-Graduação em Botânica. Laboratório de Estudos em Vegetação Campestre. Porto Alegre, Brazil.
Overbeck, Gerhard Ernst. Universidade Federal do Rio Grande do Sul. Departamento de Botânica. Porto Alegre, Brazil.
Título revista:
Journal of Vegetation Science
ISSN:
1100-9233 (impreso); 1654-1103 (en línea)
Temas:
BIOLOGICAL INVASIONS; COMPOSITIONAL DISSIMILARITY; LAND - USE CHANGE; RIO DE LA PLATA GRASSLANDS; SPECIES RICHNESS
Url al documento en Intranet FAUBA:
Resumen:
Aims: To identify environmental and anthropogenic drivers of alpha-and beta-diversity for native and alien plant species. Location: Río de la Plata grasslands, South America (Argentina, Brazil and Uruguay; 27.3 – 39.1°S, 50.1 – 66.5°W). Methods: We assembled a data set of 597 vegetation plots distributed across the Río de la Plata grasslands. To assess the drivers of native and alien alpha-diversity (species richness), we performed a generalized least-squares regression using environmental and anthropogenic predictors. We evaluated differences in beta-diversity using Simpson's pairwise dissimilarity between pairs of plots and used multiple regression on distance matrixes to investigate environmental and anthropogenic drivers on compositional dissimilarity for both native and alien plant species. Results: Native species richness was higher in sites with less demanding environmental conditions, such as lower precipitation seasonality and soils with higher cation exchange capacity. Numbers of alien species were positively related to soil pH, cropland density and road density and negatively to precipitation seasonality, mean temperatures and soil cation exchange capacity. The compositional dissimilarity was similar for native and alien species assemblages (mean ± SD: 0.64 ± 0.16 and 0.64 ± 0.35 respectively). Areas having similar climates and being geographically close shared more taxonomically similar assemblages, for both native and alien assemblages, while soil had disparate effects. Compositional dissimilarity of alien plants decreased with increasing road density. Conclusions: Our results highlight a grassland ecosystem where native species richness is still shaped only by environmental factors, but both sets of factors influence its composition. On the other hand, alien plants carry a strong signal of both environmental and human factors. As time progresses the number of alien species tend to increase, eroding the patterns of native biodiversity. To avoid this, efforts should be made to reduce road encroachment and the conversion of natural grasslands into croplands.
Citación:
---------- APA ----------
Bergamin, R. S.; Ascensão, F.; Capinha, C.; Galvão Bastazini, V. A.; Andrade, B. O.; Boldrini, I. I.; Lezama, F.; Altesor, A.; Perelman, S. B. & Overbeck, G. E. (2022).Native and alien grassland diversity respond differently to environmental and anthropogenic drivers across spatial scales.Journal of Vegetation Science,33, (3),e13133
10.1111/jvs.13133
---------- CHICAGO ----------
Bergamin, Rodrigo Scarton,Ascensão, Fernando,Capinha, César,Galvão Bastazini, Vinicius Augusto,Andrade, Bianca Ott,Boldrini, Ilsi Iob, et al..2022. "Native and alien grassland diversity respond differently to environmental and anthropogenic drivers across spatial scales".Journal of Vegetation Science 33, no.3:e13133.
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