ABSTRACT The relationship between Odonata and vegetation in Amazonia has been studied primarily streams. In this study, I examined the abundance of adult two types (shrubs herbs) surrounding an oxbow lake Peruvian Amazon. Daytime visual samplings were carried out time blocks along transects each habitat. Thirteen taxa identified. Five species similarly abundant both habitats, three used mainly ...

Fish populations in the Brazos River, Texas, were surveyed monthly for 2 years to determine the relative influence of hydrology and habitat characteristics on the recruitment dynamics of seven species representing three divergent life history strategies. Surveys were conducted in two oxbow lakes with different flood recurrence intervals and the main river channel. The first year was relatively ...

A key principle of agricultural best management practices (BMPs) is to improve water quality by reducing agricultural-sourced nutrients and associated eutrophication. Long-term (1998–2016) lake summer trophic state index (TSI) trends an watershed with were assessed. Structural BMPs included vegetative buffers, conservation tillage, reserve, a constructed wetland, sediment retention pond. TSI Se...

An investigation was made on the effects of detritus particle size on leaching rates in organic matter, and the associated environmental changes caused by detritus re-cycling in an oxbow lake (Lagoa do Infernão). Experiments were conducted during the decay of an aquatic macrophyte specie, S. cubensis, which in turn led to the formation of colored compounds. The S. cubensis were collected from t...