Ecología de interacciones de la araña lince verde, Peucetia viridans (Hentz) (Araneae: Oxyopidae), y la dominguilla, Croton ciliatoglanduliferus (Ortega: Euphorbiaceae), en una selva baja de Jalisco

• Main Author: EVERARDO JIMENEZ SALINAS
• Other Authors: Pablo Corcuera Martínez del Rio, CESAR AUGUSTO DOMINGUEZ PEREZ TEJADA, PEDRO LUIS VALVERDE PADILLA
• Format: Master Thesis
• Language: Spanish
• Published: 2008
• Subjects: info:eu-repo/classification/LEM/Inflorescences; info:eu-repo/classification/LEM/Peucetia viridians > Arachnida; info:eu-repo/classification/LEM/Croton ciliatoglanduliferus > Arácnidos; info:eu-repo/classification/LEM/Inflorescencias; info:eu-repo/classification/LEM/Peucetia viridians > Arácnidos; info:eu-repo/classification/LEM/Croton ciliatoglanduliferus > Arachnida; info:eu-repo/classification/cti/2; Lince; Lynx
• Online Access: https://doi.org/10.24275/uami.mw22v564s

The association of the Green Lynx spider, Peucetia viridans (Hentz: Oxyopidae), with Croton ciliatoglanduliferus (Ortega: Euphorbiaceae), or dominguilla as it is locally known, was analyzed in a tropical dry forest of Jalisco, in Western Mexico in 2004 and 2005. The ecological system involving the plant, its pollinators-herbivores and the Green Lynx spider was examined. The need of insect pollinators for the reproduction of the dominguilla shrub was evaluated. Height, foliage cover, number of inflorescences, number of male and female females as well as density were also assessed in order to consider their posible influence on the microhabitat selection by the spider. P. viridans completes its entire life cycle on C. ciliatoglanduliferus where it possibly takes advantage of the shelter it provides and the insects in attracts which are used as prey. The association between the floral visitors and herbivores and the plant could be controlled by the green lynx spider. This influence would decrease the plant´s reproductive success if the spider feeds on the pollinators. On the other hand, the plant could increase its success if the spider favours the herbivores, which feed on the leaves and flowers. Preliminary results show a significant negative association between the distribution of the spider and pollen collecting insects but a positive one with the herbivores that were exposed to the sun. In addition, the spider distribution had a negative association with temperature. In the early rainy season of 2004 P. viridians favoured higher (P<0.01) and number of inflorescences (P<0.05). The preference for plants with more inflorescences was then assessed by following the spider numbers during a three-week period in two groups of plants. The first one (n=50) was left untouched while all inflorescences were removed from the second (n=50). The spiders deserted plants from which inflorescences were eliminate (P<0.05). Nevertheless the association between C. ciliatoglanduliferus and P. viridans showed significant ...