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Showing 1 to 11 of 11 for “"mesohabitat"”.
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The ephemeroptera, plecoptera, and trichoptera of Missouri state parks with notes on biomonitoring, mesohabitat associations, and distribution
… families of Trichoptera were collected. Of seven mesohabitats designated, species richness was significantly highest in the riffle. Many species are reported from each state park for the first time and Serratella sordida McDunnough (Ephemeroptera: Ephemerellidae) and Triaenodes perna Ross …
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Fish ecomorphology: predicting habitat preferences of stream fishes from their body shape
… membership in two habitat guild systems (mesohabitat and microhabitat). Functions were then used to test factors influencing classification success of holdout tests and validated using fishes of a second river. Morphology was only partly successful (50%) at predicting membership in habitat …
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Habitat tools for assessing instream-flow needs for fishes in the upper Roanoke River, Virginia
… analyses. The habitat analyses showed that mesohabitat types could be effectively defined with hydraulic, channel-roughness, and geomorphologic variables, and different habitat types showed characteristically different hydraulic dynamics across flows. The analyses also showed that physical …
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Variação espacial e temporal na estrutura do habitat e prefência de microhabitat por pequenos mamíferos na Mata Atlântica
… and temporal dynamics of microhabitat and mesohabitat structures, and of litter production, that must be considered in habitat preference studies on small mammals was discussed. Finally microhabitat preference by small mammals was studied through logistic regression, seeking for a pattem of …
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Habitat Associations Of Stream-Dwelling Salamanders At Multiple Spatial Scales In Central Kentucky Headwaters.
… to identify associations between species and mesohabitat types (i.e., runs, riffles, and pools). I used second order Akaike's Information Criterion (AIC<em>c<em>) model selection to predict patterns of presence and abundance throughout headwater reaches. Fine-scale abiotic habitat conditions …
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Ecological patterns, community classification, and a comparison of approaches for predicting biological and habitat reference conditions in New Hampshire streams
… elevation, latitude, and the proportion of mesohabitat types (e.g. pool, riffle, etc.).</p><p>A new approach to constructing a biological assessment index that is based on the Bray-Curtis percent similarity between the observed and predicted communities was developed to allow taxa density …
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Stream Habitat Characterized by Stage -Specific Flows and Three-Dimensional Geomorphological Complexity: Development of Ecological Criteria for Stream Restoration Design
… Illinois, a new classification scheme for mesohabitat units was developed based on three-dimensional geomorphological complexity, and associated flow structures at low- and high-flow stages. In this two-tier classification scheme, the term fluvial habitat unit was used because fluvial …
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Multi-scale patterns of habitat use by Roanoke logperch (Percina rex) in Virginia rivers: a comparison among populations and life stages
… to be microhabitat substrate specialists and mesohabitat generalists. The final study in this dissertation examines ontogenetic patterns of habitat use by Roanoke logperch in the Roanoke and Nottoway rivers. My goals are to: 1) examine habitat use by three age classes of logperch and 2) …
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The ecology of larval and juvenile fishes in lowland rivers, with particular emphasis on foraging
… were studied using point abundance sampling on a mesohabitat scale in the River Ancholme to investigate the influence of habitat type (floating-leaved, emergent or submerged vegetation). The highest densities of most zooplankton taxa were found in emergent and floating-leaved vegetation (the least …
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Characterization of Suitable Habitats for Freshwater Mussels in the Clinch River, Virginia and Tennessee
With a new focus on flow regulation by the Tennessee Valley Authority (TVA) in reservoir tailwaters, it is now possible to recover many mussel species that once occurred in these reaches. Before flows can be modified to create habitat for freshwater mussels, suitable microhabitat conditions must be …
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Habitat modeling in perennial and non-perennial rivers: developments and applications
L'abstract è presente nell'allegato / the abstract is in the attachment