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Showing 1 to 15 of 15 for “"Stoneflies"”.
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The distribution and diversity of an entire assemblage of Plecoptera (stoneflies) inhabiting Indiana, USA
Plecoptera are an environmentally sensitive order of aquatic insects commonly used in water quality monitoring and are experiencing declines across the globe. A dataset containing over 6,300 specimen records from regional museums, literature records, and new collections was used to answer three …
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Molecular phylogenetics of the North American stoneflies (Insecta: Plecoptera), with description of a new species and family
Stoneflies (Insecta: Plecoptera) are vital to aquatic ecological systems worldwide. Their value as bioindicators and ideal subjects for biogeographic and phylogeographic studies is directly dependent on the integrity of their phylogeny. Yet, a fully-resolved and well-supported phylogeny of the …
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Phylogeograpy of Aphanicercella cassida (Plecoptera : Notonemourida) : cryptic speciation?
Stoneflies (Plecoptera) in South Africa are limited to cool pristine mountain streams. This provides them with very limited habitat in which to survive. The species of stonefly studied in this project (Aphanicercella cassida) has a very wide distribution unlike most other species which have a …
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Biodiversity and Phenology of the Epibenthic Macroinvertebrate Fauna in a First Order Mississippi Stream
… in my samples, including seven species of stoneflies, six species of mayflies, six species of caddisflies, eleven species of beetles, five species of dragonflies, one damselfly species and two species of megalopterans, including the hellgrammite, <em>Corydalus cornutus</em>. All of the …
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Impacts of aquaculture effluent on water quality and biotic communities in Virginia headwater streams
… of sensitive macroinvertebrate taxa (mayflies, stoneflies, and caddisflies) were reduced downstream and pollution-tolerant non-insect taxa (isopods and gastropods) increased. EPA Rapid Bioassessment Protocol (RBP) reflected moderately-impaired water quality downstream at farms A and C, and only …
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Relative importance of Conservation Reserve Programs to mayfly, stonefly, and caddisfly species richness in the Kaskaskia River basin of Illinois
… orders, Ephemeroptera (mayflies), Plecoptera (stoneflies), and Trichoptera (caddisflies) (EPT) in the Kaskaskia River basin, a heavily impacted, predominantly agricultural watershed in central and southern Illinois. A total of 10,522 EPT specimens were examined from 84 sites across the basin …
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Ecological Studies on Benthic Macroinvertebrates in Lowland Rivers in Relation to Water Quality
… of organic pollution, were dominant. Mayflies, stoneflies, beetles and caddis flies were restricted, these including most of the indicators of clean waters. This was because of their highly eutrophic nature, the naturally high organic loadings, and in some rivers, the physically stressful …
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Energy Flow in a Floodplain Aquifer Ecosystem
… Stygobromus amphipods, and amphibiont stoneflies, and ranged from 26.9 to 4200 mg C/m3 sediment/year. Production and density showed a U-shaped response to dissolved oxygen (high production at both low and high oxygen concentrations). Production declined exponentially with depth for most …
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Energy Flow in a Floodplain Aquifer Ecosystem
… Stygobromus amphipods, and amphibiont stoneflies, and ranged from 26.9 to 4200 mg C/m3 sediment/year. Production and density showed a U-shaped response to dissolved oxygen (high production at both low and high oxygen concentrations). Production declined exponentially with depth for most …
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Integrative Bioassessment of Acid Mine Drainage Impacts on the Upper Powell River Watershed, Southwestern Virginia
… and 8) the near elimination of predatory stoneflies (Plecoptera) downstream of the Stone/Straight Creek tributary to the North Fork Powell River was associated with water column Al concentrations. This research was funded by the Virginia Department of Mines, Minerals, and Energy, Division …
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Upper lethal temperature relations of Paragnetina media Walker (Plecoptera: Perlidae)
Thesis (M.S.)--Michigan State University. Dept. of Entomology and the W.K. Kellogg Biological Station, 1968
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Phylogeny of the Polyneopterous Insects With Emphasis on Plecoptera: Molecular and Morpological Evidence
… supported as paraphyletic. Many Plecoptera (stoneflies) exhibit a pre-mating communication known as "drumming." Species of the genus Isogenoides have complex drumming behavior in which (i) the male calls the female by tapping his abdomen against the substrate, (ii) the female answers with her …
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Stream invertebrates and water temperature : evaluating thermal tolerances in the Cape floristic region (South Africa) - implications of climate change
… species complex (and possible other notonemourid stoneflies) may potentially be used as an indicator of changing stream temperatures in the Western Cape Province. To rapidly determine thermal sensitivities the CTM experiments are recommended rather than the more time consuming LT₅₀ experiments as …
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Gene Flow and Dispersal Among Populations of the Stonefly <i>Peltoperla tarteri</i> (Plecoptera: Peltoperlidae) in the Southern Appalachians
Despite a number of recent studies focused on the issue, patterns of stream insect dispersal in temperate streams of North America remain poorly understood. Movement of benthic invertebrates is notoriously difficult to measure directly using traditional means; however, genetic markers provide an …
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The stonefly genus Isogenoides Klapálek (Plecoptera: Perlodidae) of North America: Systematics, behavior and ecology.
The stonefly genus Isogenoides is revised following a holomorphological approach utilizing traditional morphology and behavioral lines of evidence. Species keys are provided for all life stages. One species, I. krumholzi (Ricker) is considered a synonym of I. doratus (Frison). Detailed species …