Results 31 to 40 of about 226 (130)

Length–Dry Mass Relationships of Aquatic Insects: Geographic and Taxonomic Variation in a Digital Database

open access: yesFreshwater Biology, Volume 70, Issue 7, July 2025.
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

The trophic ecology of a desert river fish assemblage: influence of season and hydrologic variability

open access: yesEcosphere, Volume 10, Issue 1, January 2019., 2019
Abstract Foodweb analyses can provide insight as to how species persist in naturally dynamic environments and how these communities may respond to anthropogenic alteration. In the remaining undammed rivers of the arid southwestern United States, it is thought that plasticity in feeding behavior allows native fishes to thrive in the context of natural ...
Kathrine E. Behn, Colden V. Baxter
wiley   +1 more source

Species Richness and Abundance of Benthic Invertebrates Are Multiplied by Beaver (Castor sp.) Activities in Small Floodplains

open access: yesFreshwater Biology, Volume 70, Issue 5, May 2025.
ABSTRACT Beaver activities modify floodplains of small streams fundamentally. Prevailing lotic sections are supplemented with several additional habitats (e.g., ponds, dams and side channels). While there are several investigations into the invertebrate fauna of single beaver‐induced habitats, the ways beavers modify aquatic invertebrate assemblages of
Sara Schloemer   +7 more
wiley   +1 more source

Modeling Aquatic Macroinvertebrate Richness Using Landscape Attributes

open access: yesInternational Journal of Ecology, Volume 2015, Issue 1, 2015., 2015
We used a rapid, repeatable, and inexpensive geographic information system (GIS) approach to predict aquatic macroinvertebrate family richness using the landscape attributes stream gradient, riparian forest cover, and water quality. Stream segments in the Allegheny River basin were classified into eight habitat classes using these three landscape ...
Marcia S. Meixler   +2 more
wiley   +1 more source

Floodplain Restoration and Its Effects on Summer Water Temperature and Macroinvertebrates in Whychus Creek, Oregon (USA)

open access: yesRiver Research and Applications, Volume 41, Issue 1, Page 37-55, January 2025.
ABSTRACT Stream restoration is a proposed climate adaptation tool; however, outcomes of floodplain restoration on stream temperature have been debated. Despite a growing number of studies that investigated water temperature in restored streams, few have quantified temperature variations in new habitat types created by restored hydrogeomorphic processes
Wesley N. Noone   +3 more
wiley   +1 more source

Nuevas citas de Coleoptera acuáticos y Megaloptera para la provincia de Chubut (Argentina) New records of aquatic Coleoptera and Megaloptera from Chubut province (Argentina)

open access: yesRevista de la Sociedad Entomológica Argentina, 2004
Se informa acerca de nuevos hallazgos de coleópteros acuáticos, de Dytiscidae, Gyrinidae, Hydrophilidae y Elmidae para la provincia de Chubut (Argentina).
Miguel Archangelsky
doaj  

New aquatic insects from the Miocene of Australia with notes on the ecology and ontogeny of a new species of Chaoborus (Diptera, Chaoboridae)

open access: yesPapers in Palaeontology, Volume 10, Issue 4, July/August 2024.
Abstract We describe a diverse aquatic insect assemblage from McGraths Flat, a Miocene Lagerstätte in central New South Wales, Australia that includes representatives of Sialidae, Limoniidae, Chironomidae and Chaoboridae. The aquatic insect fossils from this deposit consist predominantly of larvae.
Viktor Baranov   +4 more
wiley   +1 more source

Comparative morphology of male genitalia in antlions (Insecta, Neuroptera, Myrmeleontidae), with emphasis on owlflies (Ascalaphinae) and a possible structural evolutionary scenario

open access: yesJournal of Morphology, Volume 285, Issue 5, May 2024.
Male genitalia groundplan in Neuropterida is based on 10 abdominal segments, plus vestigial structures from an 11th segment. Genitalia are composed of medially fused appendages of the 10th segment (gonarcus), with gonocoxite and gonostylus components (primary gonopods), plus gonostyli of the 9th segment (seconday gonopods).
Yesenia Marquez‐López   +4 more
wiley   +1 more source

Phenotypes of predator individuals underpin contrasting ecosystem effects

open access: yesFreshwater Biology, Volume 69, Issue 5, Page 739-753, May 2024.
Abstract Intraspecific variability has implications for our understanding of ecosystem functioning. Yet, beyond ontogenetic variation in body size, we know little about how phenotypic differences between individuals modulate ecosystem functioning.
Thibaut Rota   +5 more
wiley   +1 more source

The First record of Megaloptera (Insecta: Neuropterida) from Sergipe state, Brazil

open access: yesEntomological Communications
Megaloptera comprises approximately 400 species, of which 25 are recorded in Brazil and belong to Corydalidae and Sialidae. Here, we provide new occurrence records for Corydalus diasi Navás, 1915 (Megaloptera: Corydalidae) in Serra de Itabaiana National
Antonio B. S. Farias   +5 more
doaj   +1 more source

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