Regional and local factors control of beetles’ community composition in arid steppes Patagonia

Understanding how environmental changes impact arthropod communities requires multi-scale studies. Despite their importance, research exploring arthropod diversity across regional gradients while accounting for local factors, such as vegetation structure, remains scarce. This dual approach provides...

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Autores principales: García, Andrés, Graff, Barbara Pamela, Loydi, Alejandro, Aguiar, Martín
Formato: info:ar-repo/semantics/artículo
Lenguaje:Inglés
Publicado: Springer Nature 2025
Materias:
Acceso en línea:http://hdl.handle.net/20.500.12123/24345
https://link.springer.com/article/10.1007/s10841-025-00719-y
https://doi.org/10.1007/s10841-025-00719-y
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author García, Andrés
Graff, Barbara Pamela
Loydi, Alejandro
Aguiar, Martín
author_browse Aguiar, Martín
García, Andrés
Graff, Barbara Pamela
Loydi, Alejandro
author_facet García, Andrés
Graff, Barbara Pamela
Loydi, Alejandro
Aguiar, Martín
author_sort García, Andrés
collection INTA Digital
description Understanding how environmental changes impact arthropod communities requires multi-scale studies. Despite their importance, research exploring arthropod diversity across regional gradients while accounting for local factors, such as vegetation structure, remains scarce. This dual approach provides deeper insights into the influence of regional processes on local community dynamics. We employed pitfall traps to investigate diversity and composition changes in ground-dwelling beetles across a latitudinal gradient and local vegetation mosaic within the Occidental District of Patagonia, Argentina. Five sites were selected along the 850 km geographical gradient to capture regional diversity, while within each site, 10 traps were set in shrub-covered areas and 10 in bare-ground areas to assess local variability. The northernmost sites exhibited the highest diversity and abundance, and distinctive species compositions. Species composition differed significantly between sites north and south of latitude 42º, with Carabidae and Tenebrionidae as key families representing this variation. Local microsite characteristics, particularly shrub presence, significantly shape beetle communities, sometimes surpassing the influence of latitudinal changes. Both, regional and local (vegetation mosaic) factors control community composition. The differences in species composition around latitude 42º mirrors patterns seen in other taxa, indicating that historical processes, such as biogeographical processes, substantially affect beetle communities at a regional scale.
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institution Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina)
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spelling INTA243452025-10-28T12:57:46Z Regional and local factors control of beetles’ community composition in arid steppes Patagonia García, Andrés Graff, Barbara Pamela Loydi, Alejandro Aguiar, Martín Artrópodos Biodiversidad Estepas Riqueza Específica Argentina Arthropods Biodiversity Coleoptera Steppes Species Richness Beetles Escarabajo Región Patagónica Understanding how environmental changes impact arthropod communities requires multi-scale studies. Despite their importance, research exploring arthropod diversity across regional gradients while accounting for local factors, such as vegetation structure, remains scarce. This dual approach provides deeper insights into the influence of regional processes on local community dynamics. We employed pitfall traps to investigate diversity and composition changes in ground-dwelling beetles across a latitudinal gradient and local vegetation mosaic within the Occidental District of Patagonia, Argentina. Five sites were selected along the 850 km geographical gradient to capture regional diversity, while within each site, 10 traps were set in shrub-covered areas and 10 in bare-ground areas to assess local variability. The northernmost sites exhibited the highest diversity and abundance, and distinctive species compositions. Species composition differed significantly between sites north and south of latitude 42º, with Carabidae and Tenebrionidae as key families representing this variation. Local microsite characteristics, particularly shrub presence, significantly shape beetle communities, sometimes surpassing the influence of latitudinal changes. Both, regional and local (vegetation mosaic) factors control community composition. The differences in species composition around latitude 42º mirrors patterns seen in other taxa, indicating that historical processes, such as biogeographical processes, substantially affect beetle communities at a regional scale. EEA Cesáreo Naredo Fil: García, Andrés. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cesáreo Naredo. Agencia de Extensión Rural Coronel Suárez; Argentina Fil: García, Andrés. Kiel University. Institute for Natural Resource Conservation. Department of Landscape Ecology; Alemania Fil: Graff, Pamela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cesáreo Naredo. Agencia de Extensión Rural Coronel Suárez; Argentina Fil: Graff, Pamela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura Fil: Loydi, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina Fil: Aguiar, Martín R. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura 2025-10-28T12:47:36Z 2025-10-28T12:47:36Z 2025-10 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/24345 https://link.springer.com/article/10.1007/s10841-025-00719-y 1572-9753 (online) 1366-638X (print) https://doi.org/10.1007/s10841-025-00719-y eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Springer Nature Journal of Insect Conservation 29 : article number 85 (October 2025)
spellingShingle Artrópodos
Biodiversidad
Estepas
Riqueza Específica
Argentina
Arthropods
Biodiversity
Coleoptera
Steppes
Species Richness
Beetles
Escarabajo
Región Patagónica
García, Andrés
Graff, Barbara Pamela
Loydi, Alejandro
Aguiar, Martín
Regional and local factors control of beetles’ community composition in arid steppes Patagonia
title Regional and local factors control of beetles’ community composition in arid steppes Patagonia
title_full Regional and local factors control of beetles’ community composition in arid steppes Patagonia
title_fullStr Regional and local factors control of beetles’ community composition in arid steppes Patagonia
title_full_unstemmed Regional and local factors control of beetles’ community composition in arid steppes Patagonia
title_short Regional and local factors control of beetles’ community composition in arid steppes Patagonia
title_sort regional and local factors control of beetles community composition in arid steppes patagonia
topic Artrópodos
Biodiversidad
Estepas
Riqueza Específica
Argentina
Arthropods
Biodiversity
Coleoptera
Steppes
Species Richness
Beetles
Escarabajo
Región Patagónica
url http://hdl.handle.net/20.500.12123/24345
https://link.springer.com/article/10.1007/s10841-025-00719-y
https://doi.org/10.1007/s10841-025-00719-y
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