Results 21 to 30 of about 58,361 (344)

A preliminary survey of the abundance, diversity and distribution of terrestrial macroinvertebrates of Gcwihaba cave, northwest Botswana [PDF]

open access: yesSubterranean Biology, 2020
Inventories of cave species and in-depth understanding of cave ecosystems are essential for informing conservation approaches for the unique and vulnerable cave fauna.
Richard Mazebedi, Thomas Hesselberg
doaj   +3 more sources

Spatial and temporal variability of macroinvertebrates in spawning and non-spawning habitats during a salmon run in Southeast Alaska. [PDF]

open access: yesPLoS ONE, 2012
Spawning salmon create patches of disturbance through redd digging which can reduce macroinvertebrate abundance and biomass in spawning habitat. We asked whether displaced invertebrates use non-spawning habitats as refugia in streams.
Emily Y Campbell   +3 more
doaj   +1 more source

Model-based analysis of the potential of macroinvertebrates as indicators for microbial pathogens in rivers [PDF]

open access: yes, 2018
The quality of water prior to its use for drinking, farming or recreational purposes must comply with several physicochemical and microbiological standards to safeguard society and the environment.
Cisneros, Felipe   +9 more
core   +5 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

Effects of Salmon Spawning Activity on Macroinvertebrates in a Small Michigan Stream [PDF]

open access: yes, 2017
Density and composition of macroinvertebrate populations were examined prior to and during the migration and spawning of coho and chinook salmon in a small stream in Michigan.
Denison, Douglas L, Meier, Peter G
core   +2 more sources

First contingent valuation of Lake Ohrid biodiversity [PDF]

open access: yesMicro, Macro & Mezzo Geoinformation, 2016
This study is first of its kind for the region in question. It focuses on contingent valuation method evaluation of the biodiversity of Lake Ohrid. The most spectacular quality of this ecosystem is the high biodiversity and extremely high degree of ...
Konstantin ZDRAVESKI   +4 more
doaj  

Complex effects of acidification, habitat properties and fish stock on littoral macroinvertebrate assemblages in montane standing waters

open access: yesJournal of Limnology, 2022
Littoral macroinvertebrates in acidified waterbodies are affected by the interaction of acidification and local environmental conditions. Understanding the interplay of these factors in the structuring of communities is essential for interpreting ...
Jana Petruželová   +5 more
doaj   +1 more source

Efficient sampling methodologies for lake littoral invertebrates in compliance with the European Water Framework Directive [PDF]

open access: yes, 2015
Lake shores are characterised by a high natural variability, which is increasingly threatened by a multitude of anthropogenic disturbances including morphological alterations to the littoral zone. The European Water Framework Directive (EU WFD) calls for
Brauns, Mario   +7 more
core   +1 more source

Physical environment, nutrient budget, and ecology of Lake Moana-nui, Tokoroa [PDF]

open access: yes, 2006
This report is based on fortnightly monitoring data collected over a 14 month period from November 2000 to January 2002 and a survey of the lake bathymetry and vegetation distribution.
Hicks, Brendan J., Miller, Dean C.
core   +5 more sources

Beta diversity of macroinvertebrate assemblages associated with aquatic macrophytes in shallow lakes within a tropical floodplain-dammed river [PDF]

open access: yesActa Limnologica Brasiliensia
: Aims We assessed the beta diversity of macroinvertebrates associated with aquatic macrophytes in a dam-regulated river floodplain. We tested two hypotheses: (1) macroinvertebrates associated with aquatic macrophytes have higher beta diversity (higher ...
Marcos Callisto   +3 more
doaj   +1 more source

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