Carábidos (Coleóptera: Carabidae) presentes en un relicto vegetacional del llano central de La Araucanía
Carábidos (Coleóptera: Carabidae) presentes en un relicto vegetacional del llano central de La Araucanía
Authors
Authors
Date
2015-07-26
Datos de publicación:
IDESIA (CHILE), Vol.29, N°3, 87-94, Sept-Dic. 2011
Keywords
Biodiversidad - Carabidae - Nothofagus obliqua - Carábidos
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Abstract
Se estudió la diversidad de carábidos epígeos presente en el bosque relicto de Rucamanque, sitio prioritario para la conservación de la biodiversidad. Para ello fueron muestreados entre noviembre de 2005 y enero de 2006, por medio de trampas de caída pitfall, los bosques de Aextoxiconpunctatum (olivillo), Nothofagus oblíqua (roble) y su ecotono natural. Se analizaron la riqueza y abundancia de especies, así como la diversidad. También se estimó la riqueza de especies a través de curvas de acumulación de especies y estimadores de riqueza. En total fueron colectados 1.101 carábidos pertenecientes a 12 especies nativas. Ceroglossus chilensis gloriosus, C. magellanicus similis y Parhypates extenuatus concentraron el 93% de los ejemplares. Durante este estudio la mayor abundancia de carábidos epígeos, principalmente de ambas especies de Ceroglossus, se presentó en el bosque de olivillo. Los resultados expresados por la curva de acumulación de especies, estimadores de riqueza e índice de diversidad indicaron al ecotono como el ambiente más diverso dentro de Rucamanque.
A study was conducted on the diversity of epigeic Carabids and their presence in the relic forest of Rucamanque, a priority area for conservation and biodiversity. Pitfall traps were installed in the forest of Aextoxicon punctatum (olivillo) and Nothofagus obliqua (roble) and also its natural ecotone, in November 2005 and January 2006. The abundance, richness and diversity were analyzed. In total 1,101 carabids were collected, all belonging to 12 native species. Ceroglossus chilensis gloriosus, C. magellanicus similis and Parhypates extenuatus composed 93% of these samples. During the study, a high concentration of epigeic Carabids of both species of Ceroglossus were present in the olivillo forest. The accumulation of species, their richness and diversity indicated that the ecotone of the Rucamanque forest had the highest level of diversity.
A study was conducted on the diversity of epigeic Carabids and their presence in the relic forest of Rucamanque, a priority area for conservation and biodiversity. Pitfall traps were installed in the forest of Aextoxicon punctatum (olivillo) and Nothofagus obliqua (roble) and also its natural ecotone, in November 2005 and January 2006. The abundance, richness and diversity were analyzed. In total 1,101 carabids were collected, all belonging to 12 native species. Ceroglossus chilensis gloriosus, C. magellanicus similis and Parhypates extenuatus composed 93% of these samples. During the study, a high concentration of epigeic Carabids of both species of Ceroglossus were present in the olivillo forest. The accumulation of species, their richness and diversity indicated that the ecotone of the Rucamanque forest had the highest level of diversity.