In contrast to the beetles, spider diversity differed significantly across the three habitat types (Table 2). Furthermore, the composition of spider families was fairly similar in the crop and edge habitats (Table 40, although crop and forest families were dissimilar. This suggests that, while spiders may be moving in and out of cultivated areas into edge habitats, their exchange with nearby forest is limited Differences in how insects behave in and around edge habitats have been well documented for a suite of species recently(Fagan et al. 1999, Cantrell et al. 2001, Schultz& Crone 2001, Bommarco & Fagan 2004). For spiders, field studies have shown that edge effects may depend heavily upon spider size(Clough et al. 2005) Furthermore, Samu and Szinegar (2002) found that spiders commonly found in temperate agricultural areas were rarely found in natural habitats as well(also see review by Sunderland& Samu 2000). In the current study, J ycosidae spp., common in agricultural areas, were far more prevalent in crop areas and adjacent edge habitats, with a much smaller presence in forest habitats Table 4). In this case, functional