Filters: Tags: invertebrates (X)349 results (77ms)
Assessing conservation value of stream communities: A comparison of approaches based on centres of density and species richness
Temporal changes in the composition and abundance of the macro-benthic invertebrate communities at dredged material disposal sites in the Anse a Beaufils, Baie des Chaleurs, Eastern Canada
Riparian eucalypts and willows and their significance for aquatic invertebrates in the River Murray, South Australia
Effect of sediment quality on benthic macroinvertebrate communities in streams in the north of France
Relationships between metals and hyporheic invertebrate community structure in a river recovering from metals contamination
Impact of encroachment and bankside development on the habitat complexity and supralittoral invertebrate communities of the Thames Estuary foreshore
Influence of the European Beaver (Castor fiber albicus) on the Biodiversity (Odonata, Mollusca, Trichoptera, Ephemeroptera, Diptera) of Brooks in Hesse (Germany)
Short-Term Consequences of Nourishment and Bulldozing on the Dominant Large Invertebrates of a Sandy Beach
Effects of Muskrat (Ondatra zibethicus) Lodge Construction on Invertebrate Communities in a Great Lakes Coastal Wetland
Climate-Driven Alteration of Intertidal Habitats for Migratory Birds in the San Francisco Bay Estuary
This project evaluates the effects of global climate change and sea level rise on estuarine intertidal habitat in the San Francisco Bay and the Pacific Flyway migratory waterbirds that rely on this habitat. Phase 2 of this project is a continuation of work to evaluate the effects of global climate change and sea level rise (SLR) on intertidal shoals in the San Francisco Bay Estuary and the migratory waterbirds that rely on this critically important resource in the Pacific Flyway. The primary objectives are to: 1) use downscaled global climate change models to translate SLR and climate scenarios into habitat quantity predictions through Delft3D and Dflow-FM (unstructured grid) geomorphic modeling; 2) model the response...
This map was created to help assess impacts on nonindigenous aquatic species distributions due to flooding associated with Hurricane Irma. Storm surge and flood events can assist expansion and distribution of nonindigenous aquatic species through the connection of adjacent watersheds, backflow of water upstream of impoundments, increased downstream flow, and creation of freshwater bridges along coastal regions. This map will help natural resource managers determine potential new locations for individual species, or to develop a watch list of potential new species within a watershed. These data include a subset of data from the Nonindigenous Aquatic Species Database, that fall within the general area of the 2017...
Acidification in Norway -- status and trends. Biological monitoring -- improvements in the invertebrate fauna
Use of semiochemicals of secondary bark beetles to disrupt spruce beetle attraction and survival in Alaska
Stable isotope ecology of land snails from a high-latitude site near Fairbanks, interior Alaska, USA
Land snails have been investigated isotopically in tropical islands and mid-latitude continental settings, while high-latitude locales, where snails grow only during the summer, have been overlooked. This study presents the first isotopic baseline of live snails from Fairbanks, Alaska (64°51′N), a proxy calibration necessary prior to paleoenvironmental inferences using fossils. δ13C values of the shell (− 10.4 ± 0.4‰) and the body (− 25.5 ± 1.0‰) indicate that snails consumed fresh and decayed C3-plants and fungi. A flux-balance mixing model suggests that specimens differed in metabolic rates, which may complicate paleovegetation inferences. Shell δ18O values (− 10.8 ± 0.4‰) were ~ 4‰ higher than local summer rain...
Bark-beetle-attacked trees produced more charcoal than unattacked trees during a forest fire on the Kenai Peninsula, Southern Alaska
Comparison of Benthic Macroinvertebrates Colonizing Sand, Wood, and Artificial Substrates in a Low-Gradient Stream
ABSTRACT We compared macroinvertebrate assemblages sampled from artificial and natural substrates within a small, sandy-bottomed coastal plain stream, Alabama, USA. Separate samples were collected from natural coarse woody debris (CWD) accumulations, benthic sand substrate, and Hester-Dendy multiplate samplers (HDs, 54-d incubations). Shannon's H? was lowest and % dominant taxon was highest in sand samples. Proportion of the total assemblage as EPT taxa (Ephemeroptera, Plecoptera, and Trichcptera) was significantly higher on HDs than from sand, and proportion of the assemblage as Chironomidae was higher from sand than on CWD. Invertebrate biomass on HDs was almost two times higher than from sand, whereas biomass...
Categories: Publication; Types: Citation; Tags: Invertebrates, Monitoring 1-Changes in Plant and Animal Distribution: Fauna