Results 71 to 80 of about 17,296 (265)

Fish and macroinvertebrates in lowland drainage canals with and without grass carp

, 2006
Diploid grass carp (Ctenopharyngodon idella L.) were introduced to a lowland Waikato drainage canal at an initial density of 40-80 kg ha -1(83-167 fish ha -1) to control aquatic macrophytes and improve water flow.
Bannon, Henry James, Hicks, Brendan J., Wells, R.D.S.   +2 more
core  

Freshwater Macroinvertebrates [PDF]

, 2003
The purpose of this resource is to sample, identify, and count macroinvertebrates at a Hydrology Site. Students collect, sort, identify, and count macroinvertebrates from habitats at their site.
The GLOBE Program, UCAR (University Corporation for Atmospheric Research)
core  

Temporal community change in stream ecosystems varies by assemblage across US climates

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecosystem properties are temporally dynamic. Temporal variability has been shown to decrease with increasing levels of biological organization (i.e. from population to community and ecosystem levels).
Megan C. Malish, Stephen C. Cook, Mariana Perez Rocha, Albert Ruhí, Michael T. Bogan, Thomas M. Neeson, Daniel C. Allen   +6 more
wiley   +1 more source

Abundance and diversity of black flies (Diptera: Simuliidae) in rivers of the Andean Eastern Hills of Bogotá (Colombia), and its relationship with water stream physicochemical variables

Universitas Scientiarum, 2018
Black flies are abundant benthic organisms in well-oxygenated running water and are considered effective bioindicators of water quality. Information on the ecology of these organisms at the species level is important, since up to now information has ...
Alexandra Buitrago-Guacaneme, Aura Sotelo-Londoño, Gabriel A. Pinilla-Agudelo, Alexander García-García, Ligia I Moncada, Peter H Adler   +5 more
doaj   +1 more source

Altitudinal distribution limits of aquatic macroinvertebrates: an experimental test in a tropical alpine stream.

, 2015
Temperature and oxygen are recognised as the main drivers of altitudinal limits of species distributions. However, the two factors are linked, and both decrease with altitude, why their effects are difficult to disentangle.
Dangles, Olivier Jacques
core   +1 more source

Species-level dataset is required for setting biodiversity conservation priorities for freshwater macroinvertebrates in Melbourne streams

, 2023
Family-level identification of freshwater macroinvertebrates is often used to monitor the health of streams due to the lower cost and higher accuracy of identification compared to identifying species.
Coleman, Rhys A, Simon Linke, Carew, Melissa, Ary A. Hoffmann, Rhys A. Coleman, Melissa Carew, Tsyrlin, Edward, Edward Tsyrlin, Hoffmann, Ary A, Linke, Simon   +9 more
core   +1 more source

Testing a method for quantifying structural redundancy in ecological communities

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract In ecological communities, some taxa contribute to ecosystem functioning in highly similar ways. When numerous taxa within a community contribute similarly, this might suggest a degree of functional redundancy, where the loss of one species may not impair ecosystem ...
David T. Dodemaide, Galen Holt, Rebecca E. Lester   +2 more
wiley   +1 more source

Effects of riparian vegetation on water quality and macro invertebrates in the Gilgel Gibe Tributaries, Southwest Ethiopia

Applied Water Science
Riparian vegetation is crucial for both terrestrial and aquatic ecosystems, providing numerous essential benefits. The absence of riparian vegetation along streams can lead to various pressures that negatively affect macroinvertebrates and their habitats.
Tadesse Weyuma Bulto, Tibebu Alemu, Birhanu Chalchisa Werku, Argaw Ambelu   +3 more
doaj   +1 more source

Macroinvertebrates and water quality: a teaching guide

, 2002
Streams support a diverse community of plants and animals on or in the stream bed. These organisms comprise the benthos. Among the benthos are worms, molluscs, crustaceans, and larval insects.
Hicks, Brendan J.
core  

Invasive goldfish trigger a regime shift in experimental lake ecosystems of varying trophic state

Journal of Animal Ecology, EarlyView.
The pet trade distributes exotic animals around the globe that enrich human lives. However, some pets become pests when released into the wild. This study provides experimental evidence that goldfish will negatively affect native freshwater organisms and ecosystems.
William D. Hintz, Hannah Barrett, Rick A. Relyea   +2 more
wiley   +1 more source