Results 41 to 50 of about 372 (122)
Se informa acerca de nuevos hallazgos de coleópteros acuáticos, de Dytiscidae, Gyrinidae, Hydrophilidae y Elmidae para la provincia de Chubut (Argentina).
Miguel Archangelsky
doaj
ABSTRACT Environmental and biological factors strongly shape fish diets, yet little is known about such influences in flooded Karst Dolines of the Neotropical region. This study examined the diet of Deuterodon luetkenii and assessed its temporal and ontogenetic variation in Lagoa Misteriosa, a karstic lagoon. Fish were sampled bimonthly over 1 year and
Amanda Menegante Caldatto +3 more
wiley +1 more source
ABSTRACT Stream ecosystem functioning and community structure are influenced by local and catchment land use. In mosaic landscapes, agricultural activities can also affect leaf breakdown and detritivore assemblages in downstream forest reaches. We evaluated the combined effects of upstream deforestation and the input of a nonnative crop species on leaf
Marcos A. Ferraz +6 more
wiley +1 more source
Diversidad de coleópteros acuáticos en la parte baja del Río Ancho, Dibulla, La Guajira, Colombia
El presente estudio evaluó la diversidad de coleópteros acuáticos en un tramo de la parte baja del río Ancho en el municipio de Dibulla, La Guajira (Colombia).
Carlos Farid Laguna Portela +2 more
doaj
The two most diverse beetle families, Staphylinidae and Curculionidae (black arrows), have fewer studies of diversity and elevation than expected, while the Carabidae and Scarabaeidae (brown arrows) are overstudied. Dung beetle (Scarabaeidae) phylogenetic and taxonomic diversity decreases with elevation along tropical and temperate elevational ...
Alexandre M. M. C. Loureiro +1 more
wiley +1 more source
The family Elmidae Curtis, 1830 has cosmopolitan distribution and most species inhabit riffles on streams and rivers, hence the name “riffle beetle”.
Melissa Ottoboni Segura +2 more
doaj +1 more source
ABSTRACT Mountain streams exhibit hydrogeomorphological heterogeneity, which is further intensified by the presence of hydraulic infrastructure. Despite extensive research on the influence of hydrological conditions and flow regulation on ecology, there is a notable absence of holistic studies investigating stream dynamics from both geomorphologic and ...
Luca Bonacina +3 more
wiley +1 more source
ABSTRACT Aquatic insects are an abundant, yet declining, taxonomically heterogeneous group with special importance in both aquatic and terrestrial ecosystems. Accurate estimations of insect biomass during their aquatic life stages are essential to advance our fundamental knowledge about insects, their roles in ecosystems, and their vulnerability to ...
Casper H. A. van Leeuwen +4 more
wiley +1 more source
Aquatic habitat response to small dam removal demonstrates recovery in three years
Abstract Dams disrupt river networks by interrupting longitudinal transport of sediment and nutrients and obstructing the movement of aquatic organisms. Increasingly, water resource managers are looking for dam removal as a solution to restore connectivity and improve aquatic habitats, water quality, and fish passage.
Jeremy Dietrich +4 more
wiley +1 more source
Abstract The Cofán communities rely on the Cofán Bermejo Ecological Reserve for their survival and cultural practices. Due to the rugged and inaccessible topography of the reserve in the Northern Ecuadorian Amazon region, limited biomonitoring and ecological characterization studies of the ecosystem health have been conducted.
Federico Sinche Chele +8 more
wiley +1 more source

