Fish conservation in South America is a pressing issue. The biodiversity of fishes, just as
with all other groups of plants and animals, is far from fully known. Continuing habitat loss …

Neste artigo, a lista das aves do estado do Rio Grande do Sul (281.749 km²) é revisada e
atualizada. A inclusão de espécies na lista seguiu dois critérios principais:(i) ocorrência no …

The aquatic habitats of the Taquari-Antas river basin (in the Patos Lagoon basin, southern
Brazil) are under marked environmental transformation because of river damming for …

Two new species of Parastacus Huxley, 1879 are described from material collected in the
state of Rio Grande do Sul, southern Brazil: Parastacus fluviatilis sp. nov. from highland …

Freshwater fish aquaculture in Brazil is based in a few species, mostly introduced from other
countries or continents. When an exotic species is introduced into the ecosystem, there are a …

Wetlands are among the most productive ecosystems on the earth, with enormous
ecological and social importance. Here, we cover most of the recent knowledge produced in …

This study analyzed the diet and reproductive dynamics of Trachelyopterus lucenai
Bertoletti, Pezzi da Silva & Pereira, 1995, an allochthonous fish species in the subtropical …

Plants and ants engage in diverse mutualistic interactions that contribute to their adaptive
fitness. However, the presence of ants in flowers can generate conflicts between plants and …

I report on the occurrence of 16 species of birds in Rio Grande do Sul, southern Brazil, of
which seven are new for the state-Accipiter superciliosus (Linnaeus, 1766), Brotogeris tirica …

Some grasslands in ecotones with forests tend to be encroached by woody species,
because of changes in climate and land use. Such structural changes in vegetation can be …