The effects of simulated acid rain on web-spinning spiders in the Luquillo Experimental Forest, Puerto Rico
Our objective of this study was to assess the effects of simulated acid rain on web-spinning spider assemblages in the Luquillo Experimental Forest, and we hypothesized that acid rain would decrease the richness and abundance of web-spinning spider taxa. Spiders are an ideal bioindicator to study the effects of anthropogenic pollutants due to their abundance, position as apex predators, various foraging behaviors and the feasibility in collecting them. In our field experiment, quadrats were sprayed with water of varying pH levels. After the treatments, all web-spinning spiders in the quadrats were collected and identified and results were statistically analyzed.