Paper Title
Species Richness and Microhabitats of Spiders in Caves of Agusan Del Sur, Philippines

Abstract
Spiders are widely distributed in a variety of habitats. However, spider fauna in caves of Agusandel Sur has not been widely studied. This study aimed to determine the species richness and microhabitats of cave spiders in Agusandel Sur. Eight caves in four municipalities of Agusan del Sur were surveyed on June 24 � July 10, 2015. A combination of vial tapping and handpicking methods was done to collect specimens. Forty-eight species of spiders were documented. Agpan Cave had the highest species richness (S=19) attributed to guano deposit in the cave. Five microhabitats were identified. Family Sparassidae occupied all the five cave microhabitats. The wall of the cave was the microhabitat with the highest species richness.Family Araneidae was found high in both rock surfaces and shrubs at the entrance of the cave. Results indicate that guano deposits and microhabitat structuresaffect species richness and abundance of spiders in caves. Keywords� Guano, Habitat Structures, Sparassidae, Vial Tapping.