It is well recognized that assemblage structure of stream macroinvertebrates changes with
alterations in catchment or local land use. Our objective was to understand how the trophic …

The objective of this study was to evaluate if aquatic pollution promote diet shifts in two
livebearer fishes (Poeciliidae): an exotic species, the guppy (Poecilia reticulata), and a …

The aim of this study was to test the hypothesis that a widespread non-native fish species in
Brazil displays opportunistic feeding behavior and changes its diet according to …

Deforestation affects the ecological integrity of rivers and streams, threatening biodiversity
and ecosystem services worldwide. However, few studies have strictly analyzed the effect of …

Mercury (Hg) biomagnification in fish food chains is a relevant subject due to the high fish
consumption of the Amazonian population and the high toxicity of this metal. In the Amazon …

Anthropogenic activities can have a great influence on water quality and in the availability of
habitat and food resources, which can promote changes in the trophic diversity and carbon …

Deforestation and habitat loss resulting from land use changes are some of the utmost
anthropogenic impacts that threaten tropical birds in human-modified landscapes (HMLs) …

Global warming has changed climate patterns worldwide causing an increase of extreme
weather conditions that have altered annual seasonal hydrological regimes. These extreme …

The aim of this study was to evaluate how distinct land uses can alter the trophic structure of
fish communities in streams. For this purpose, nine streams under the influence of three …

Historically, anthropogenic fixed nitrogen has been purposely increased to benefit food
production and global development. One consequence of this increase has been to raise …