The ecomorphology of 14 fish species resident in a headwater riffles area of the São
Francisco river, southeastern Brasil, was analyzed and combined with diet and feeding …

This study was carried out to develop and apply a fish-based biotic integrity index to assess
lowland streams in a highly deforested region of the Upper Paraná River basin. Fifty-six first …

This study aimed to describe the functional organization of the ichthyofauna of forest streams
from northeastern Pará State, Brazil, based on behavioral observation of species' feeding …

The córrego Paulicéia is a direct tributary of the rio Mogi-Guaçu, located in Santa Rita do
Passa Quatro, State of São Paulo, Southeastern Brazil. This stream runs inside a savannah …

Data obtained by direct observation of organisms in their natural habitats can provide
valuable contributions regarding intra-and inter-specific interactions, as well as spatial …

Los términos' forma de crecimiento'y'hábito'con frecuencia se usan como sinónimos; sin
embargo, su asignación a las diferentes especies resulta problemática en algunos grupos …

The organization of species metacommunities can be controlled by local factors, such as
habitat quality, landscape factors, such as land use, and spatial factors, such as stream …

En México existe poca información sobre las asociaciones simbióticas entre diatomeas y
ciliados, así como con otras especies de microalgas y particularmente con crustáceos …

No hay ningún concepto de raza que, al aplicarse al Homo sapiens, encuentre su extensión
en un grupo de linajes evolutivamente diferenciables. Consecuentemente, desde un punto …

Los eufáusidos representan uno de los principales componentes del zooplancton _ debido
a su abundancia. Considerados como los segundos en importancia después de los …