Spider community in different agro-ecosystems in Argentina: past, present and future

GONZÁLEZ, A., J.A. CORRONCA, M. F. ARGAÑARAZ, A. ARMENDANO, A. X. GONZÁLEZ REYES, V. I. OLIVO

Sao Pedro, sao Paulo, Brasil

Simposio; 17th International Congress of Arachnology (ISA); 2007

ISA

Spider community in different agro-ecosystems in Argentina: past, present and future González, A.S.12; J.A., Corronca13; A. Armendano, M.F. Argañarás3, A.X. González Reyes3; V.I. Olivo13;  1. CONICET. 2. CEPAVE. 3. U.N.Sa-IEBI. Instituto para el estudio de la Biodiversidad de Invertebrados, FCN-U.N.Sa. Av. Bolivia 5150. CP4400.Salta, Argentina. In the last decades the interest to study the spider community in agreocosystem increased and in Argentina the first studies about it began in the middle of the ´90. The spiders as a generalist predator are very important as natural enemies of pest insects in different crops and several studies to prove this role was carried out all over the world and in out country. In Argentina the first study about spiders in agroecosystem was in cotton crops in Chaco Province. In the last decade, many studies has been made in the same crop in La Rioja province; and in other annual and perennial crops such as soybean, alfalfa and wheat crop plots in Buenos Aires province and in soybean, strawberry, pea and different fruit trees orchards  (tuna, citrus, fig tree and peach tree) in Tucuman and Salta provinces. Different collecting methods were used to obtain the spiders (beating net; pitfall trapping, G-vac, etc.) in crops and plots with different management (conventional vs. transgenic; few application of pesticides vs. high number of applications; conventional vs. non-tillage system); size of the plots (1ha, 2ha, 3-5ha, 30ha, 60ha and 120ha) and different adjacent habitat (hedgerow, windscreen, natural forest patch, other crop plot).