Results 31 to 40 of about 26,672 (201)

Boosted Beta regression. [PDF]

open access: yes, 2013
Regression analysis with a bounded outcome is a common problem in applied statistics. Typical examples include regression models for percentage outcomes and the analysis of ratings that are measured on a bounded scale.
Fenske, Nora   +5 more
core   +8 more sources

Revealing the influence of hyporheic water exchange on the composition and abundance of bottom-dwelling macroinvertebrates in a temperate lowland river

open access: yesKnowledge and Management of Aquatic Ecosystems, 2021
We studied distributions and abundances of macroinvertebrates in relation to hyporheic water exchange (HWE) patterns of the upper Biebrza − a small, lowland, low dynamic European river located in Northeast Poland.
Grygoruk Mateusz   +7 more
doaj   +1 more source

Water Quality Assessment of Sager Creek Utilizing Physiochemical Parameters and a Family-Level Biotic Index [PDF]

open access: yes, 2013
An annual rapid bioassessment and physiochemical survey of Sager Creek in Northwest Arkansas was conducted. Sager Creek is a first to second order stream that flows through the city of Siloam Springs, AR.
Wakefield, T. S.
core   +3 more sources

Metal contamination in benthic macroinvertebrates in a sub-basin in the southeast of Brazil

open access: yesBrazilian Journal of Biology
Benthic macroinvertebrates have many useful properties that make possible the use of these organisms as sentinel in biomonitoring programmes in freshwater.
WAC Chiba, MD Passerini, JG Tundisi
doaj   +1 more source

Numerical Response of Migratory Shorebirds to Prey Distribution in a Large Temperate Arid Wetland, China

open access: yesScientifica, 2016
Wuliangsuhai Lake provides important breeding and stopover habitats for shorebirds. The health of this wetland ecosystem is rapidly deteriorating due to eutrophication and water pollution and environmental management is urgently needed.
Yamian Zhang   +4 more
doaj   +1 more source

Using the Benthic Macroinvertebrates Species Diversity Index to Determine the Water Quality of Antirogo River, Jember Regency

open access: yesJurnal Ilmu Dasar
The Antirogo river, as one of the rivers across the Jember regency, East Java, plays an important role and is used for various activities such as agriculture, domestic, and industrial activities.
Retno Wimbaningrum   +3 more
doaj   +1 more source

The habitat type and trophic state determine benthic macroinvertebrate communities in lowland shallow lakes of China

open access: yesJournal of Limnology, 2016
Benthic macroinvertebrates play important roles in shallow lake ecosystems. Several studies based on qualitative comparisons of the amount of macrophytes were carried out to relate benthic macroinvertebrate assemblages to habitat conditions in shallow ...
Zhixin Hu   +7 more
doaj   +1 more source

Impacts of land-based pollutants on water chemistry and benthic macroinvertebrates community in a coastal lagoon, Lagos, Nigeria

open access: yesScientific African, 2020
Tropical coastal waters are prone to increased influx of pollutants from land during the rains. The effects of pollution influx on the water and macrobenthic fauna of a coastal lagoon, Lagos, Nigeria were investigated.
J.A. Nkwoji   +2 more
doaj   +1 more source

Benthic Macroinvertebrates Composition, Diversity and Distribution of Daberam Reservoir, Katsina State, Nigeria

open access: yesUMYU Journal of Microbiology Research
Macrobenthic invertebrates are significantly considered to be bioindicators by providing a key concept in understanding the dynamics in aquatic conditions rather than chemical and microbiological data, which at least give short-term fluctuations. Recent
Musa, M. A.   +4 more
doaj   +1 more source

Longitudinal patterns in an Arkansas River Valley stream: an Application of the River Continuum Concept [PDF]

open access: yes, 2017
The River Continuum Concept (RCC) provides the framework for studying how lotic ecosystems vary from headwater streams to large rivers. The RCC was developed in streams in eastern deciduous forests of North America, but watershed characteristics and land
Adams, S. R.   +9 more
core   +3 more sources

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