Anthropogenic impacts on Costa Rican bat parasitism are sex specific

Anthropogenic impacts on Costa Rican bat parasitism are sex specific

While anthropogenic impacts on parasitism of wildlife are receiving growing attention, whether these impacts vary in a sex-specific manner remains little explored. Differences between the sexes in the effect of parasites, linked to anthropogenic activity, could lead to uneven sex ratios and higher population endangerment. We sampled 1108 individual bats in 18 different sites across an agricultu...

Costa Rican Natural History

Effects of Anthropogenic Disturbance and Climate on Patterns of Bat Fly Parasitism

Environmental conditions, including anthropogenic disturbance, can significantly alter host and parasite communities. Yet, our current knowledge is based mainly on endoparasites, while ectoparasites remain little studied. We studied the indirect effects of anthropogenic disturbance (human population density) and climate (temperature, precipitation and elevation) on abundance of highly host-spec...

Slash and Burn Impacts on a Costa Rican Wet Forest Site

Impacts of felling, mulching, and burning on budgets of C, N, S, P, K, Ca, and Mg; rates of CO2 evolution from the soil; soil seed storage; and plant growth were evaluated. The felled tropical evergreen forest was 8-9 yr old, interspersed with patches of 70-yr-old forest and had a leaf area index of 6 and aboveground biomass of 5.2 kg/M2. Harvest of the largest trees removed 18% of the S, and >...

Mining the Costa Rican Web

There is much to say about the structure and composition of a local web. Identification of authorities, topics and web communities can be used to improve search engines, change a portal design or to develop marketing strategies. The Costa Rican web was chosen as a test case for web mining analysis. After the study we obtained several descriptors of the web as well as the answers to typical ques...