Diversity of Pentatomoidea (Hemiptera) in riparian forests of southern Brazil: taller forests, more bugs

Nitrate Dynamics in Riparian Forests: Groundwater Studies

This study was conducted to assess the removal of groundwater nitrate (NOa-) in different soil drainage classes within three riparian forests located in Rhode Island. A solution of NOa-and a conservative tracer [either bromide (Br-) or chloride (CI-)] was applied in growing and the dormant seasons to trenches upgradient of wetland locations with hydric soils (poorly and very poorly drained soil...

Denitrification in riparian forests receiving agricultural discharges

Riparian forests can remove large amounts of nitrate from the groundwater discharges of adjacent uphill croplands. We review the mechanisms that could account for NO3 removal. Denitrification is hypothesized to be important, but measurement problems limit the relevant field data. We used large chambers (1-20 mZ) and tunable-diode laser infrared spectrophotometry to measure nitrous oxide (NzO) e...

Nitrate Dynamics in Riparian Forests: Microbial Studies

While riparian forests have a demonstrated ability to remove nitrate (NO3-) moving from uplands before it enters streams, there is considerable uncertainty as to the mechanisms of NOr removal in these areas. We characterized spatial and temporal variation in denitrification enzyme activity (DEA), microbial biomass C and N content, soil respiration and potential net N mineralization and nitrific...

Relationship Between Geomorphic Variations and Riparian Forests

Bird Communities of Southern Forests

Birds constitute a high-profile group of species that attract a great deal of attention as watchable wildlife. Also, birds are important as indicators of habitat conditions and environmental health. Compared to other groups of animals and plants, birds are relatively conspicuous and can be easily monitored. Available information on bird ecology is substantial, but understanding the management r...