Ecologia y aspectos del comportamiento en Linothele sp. (Araneae, Dipluridae)

Publication Type:Journal Article
Year of Publication:1988
Authors:Paz, N
Journal:Journal of Arachnology
Volume:16
Pagination:5-10
Abstract:

A species of Linothele (Dipluridae), was studied in Soberania Park (Panamá) and the lower elevation, more humid Department of Chocó (Colombia). The purpose of the study was to determine behavior related to web construction, prey capture, design and trophic efficiency of the web, food source, migration, agonistic behavior and associated kleptoparasites. Differences between temperatures during the day were also studied inside and outside the spider’s retreat. Positive correlations in the variables of body weight vs. body length; weight vs. diameter of the web orifice; body weight vs. the maximum web dimension; body length vs. maximum web diameter were found in both zones. The webs of these spiders are characterized by having a number of associated symbionts, some of them true kleptoparasites. The spiders discriminate in their choice of prey and are most active at night. There was no evidence that they could excavate their own retreat cavities and they showed high levels of inter- and intraspecific agonistic interactions. El trabajo se inici6 en el Parque de la Soberania de Panamá y se continuo en Colombia (Departamento del Chocó), siendo esta ultima area mucho mas lluviosa y de menor altitud. Se trabajo con una especie do Linothele (Dipluridae) con el objetivo de estudiar algunos patrones de comportamiento relacionados con su conducta tejedora ; manejo de la presa, patron y eficiencia trofica de la tela, posibles fuentes de alimento, capacidad migratoria, conducta agonistica, cleptoparasitismos, ciclos termicos entre las 0800; 1200; 1600; 2000, de la temperatura ambiental y la del interior de la cueva; ademas de algunos aspectos ecologicos. La correlación de variables (peso x largo corporal; peso corporal x el mayor valor de la dimension de la tela; peso x diametro del orificio de la tela; largo corporal x diametro y por mayor valor de la tela), evidenciaron en las dos zonas de estudios, coeficientes positivos. Ademas, las telas de estas aranas se caracterizaron por presentar un buen numero de simbiontes asociados, algunos ocasionales y otros verdaderos cleptoparasitos. Se encontro que discriminaban presas y no dieron evidencia que contruyen sus propias cuevas; su mayor actividad es nocturna y presenta un alto grado de conducta agonistica intra e interespecifica.

URL:http://www.americanarachnology.org/JoA_free/JoA_v16_n1/JoA_v16_p5.pdf
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