Estructura de la Comunidad de arañas cazadoras activas en un bosque seco de la costa Bosque Protector Cerro Blanco, Guayas-Ecuador).
Fecha
2018
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Facultad de Ciencias Naturales, Universidad de Guayaquil
Resumen
La araneofauna de los bosques secos del sur-occidente del Ecuador es poco estudiada a pesar de su importancia ecológica, comercial y sanitaria. Diferentes factores como la falta de recursos destinados a la investigación de este grupo, o el ser considerados animales poco atractivos para el público general.
Por esta razón en este estudio se pretende describir la estructura y composición de la comunidad de arañas cazadoras activas del Bosque Protector Cerro Blanco. El Bosque Protector Cerro Blanco es uno de los remantes de bosque mejor conservados en la provincia del Guayas.
Para describir su estructura y variación se muestrearon 5 hábitats diferentes: mediante agitación de follaje, cernido de hojarasca y trampas de caída. Además, se analizó la diversidad Alfa, diversidad estimada y diversidad beta mediante: los índices de Margalef, estimador CHAO 1, estimador ACE e Indicé de similitud de Jaccard con un análisis clúster. Se obtuvieron 17 familias de arañas cazadoras activas, una diversidad alfa media y un análisis de Clúster con 3 grupos bien diferenciados en su composición de familias.
The araneofauna of the dry forests of south-western Ecuador is less studied despite its ecological, commercial and sanitary importance. Due different factors such as the lack of resources allocated to the research of this group, or being considered unattractive animals for the general public. For this reason, in this study aims to describe the structure and description of the active hunting spider community of Cerro Blanco Protected Forest. The Cerro Blanco Protected Forest is one of the best-preserved forest remnants in Guayas province. To describe community structure and diversity, five different habitats were sampled by: foliage agitation, litter sifting and fall traps. In addition, alpha diversity, estimated diversity and beta diversity were analyzed through: Margalef’s index, CHAO estimator 1, ACE estimator and Jaccard similarity index using a cluster analysis. We found 17 families of active hunting spiders, a diversity alpha means and a Cluster analysis with three well-differentiated groups in their composition of families.
The araneofauna of the dry forests of south-western Ecuador is less studied despite its ecological, commercial and sanitary importance. Due different factors such as the lack of resources allocated to the research of this group, or being considered unattractive animals for the general public. For this reason, in this study aims to describe the structure and description of the active hunting spider community of Cerro Blanco Protected Forest. The Cerro Blanco Protected Forest is one of the best-preserved forest remnants in Guayas province. To describe community structure and diversity, five different habitats were sampled by: foliage agitation, litter sifting and fall traps. In addition, alpha diversity, estimated diversity and beta diversity were analyzed through: Margalef’s index, CHAO estimator 1, ACE estimator and Jaccard similarity index using a cluster analysis. We found 17 families of active hunting spiders, a diversity alpha means and a Cluster analysis with three well-differentiated groups in their composition of families.
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ARAÑAS, CAZADORAS ACTIVAS, BOSQUE SECO, ESTRUCTURA DE LA COMUNIDAD, SUDOESTE DE ECUADOR