Results 41 to 50 of about 7,330 (253)

PondNet – towards a global network of experiments on the effects of climate change on aquatic ecosystems

open access: yesEcography, EarlyView.
Global change is reshaping the distribution of biodiversity and the functioning of ecosystems. Predicting the long‐term consequences of such changes remains a challenge due to a need for a clear understanding of the mechanisms underpinning ecosystem‐level responses, as well as the role of geographical and environmental contingencies.
Miguel G. Matias   +15 more
wiley   +1 more source

The use of benthic macroinvertebrates to establish a benchmark for evaluating the environmental quality of microtidal, temperate southern hemisphere estuaries

open access: yes, 2012
Establishment of a benchmark against which deleterious changes to an estuary can be evaluated requires validating that it has not been subjected to detrimental anthropogenic perturbations and then identifying the biological features which are indicative ...
Tweedley, J.R.   +9 more
core   +1 more source

Changes of Benthic Macroinvertebrates in Thi Vai River and Cai Mep Estuaries Under Polluted Conditions with Industrial Wastewater

open access: yesGeoScience Engineering, 2017
The pollution on the Thi Vai River has been spreading out rapidly over the two lasted decades caused by the wastewater from the industrial parks in the left bank of Thi Vai River and Cai Mep Estuaries.
Huong Nguyen Thi Thanh   +2 more
doaj   +1 more source

Stochastic and deterministic processes influencing mountain mire diatom communities across spatial scales

open access: yesEcography, EarlyView.
Understanding how deterministic and stochastic processes influence the shape of microorganism community assembly across different spatial scales is essential for disentangling biodiversity patterns. Mires are nutrient‐poor and heterogeneous wetlands that form isolated habitats supporting highly diverse diatom assemblages, particularly in mountainous ...
Fernanda Gonzalez‐ Saldias   +4 more
wiley   +1 more source

Methodological constraints for the stable isotope analysis of different tissues: A comparison between muscle and whole‐body samples in freshwater gammarids

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Carbon (δ13C) and nitrogen (δ15N) stable isotope ratios allow the reconstruction of food webs, provided that all trophic levels are properly characterized. In freshwater ecosystems, small‐bodied invertebrates often occupy central positions in food webs, with whole‐body samples commonly used for their stable isotope analysis, due to ...
Alan Fritsch   +3 more
wiley   +1 more source

Benthic macroinvertebrate of Adıgüzel Reservoir (Denizli, Turkey)

open access: yesEge Journal of Fisheries and Aquatic Sciences, 2016
In order to determine the benthic macro-invertebrates of Adiguzel Reservoir, samplings were performed between January 2007 and December 2007 at four stations in dam lake and littoral zone. During the samplings, an Ekman Grab was used in those stations located in dam lake and 180 µ mesh sized hand nets were used in coastal samplings.
Özbek, Murat   +2 more
openaire   +4 more sources

Seasonal Dynamics of Benthic Macroinvertebrates in Four Equatorial Forest Streams in the Mvila Division, Southern Cameroon [PDF]

open access: yesNature Environment and Pollution Technology
Seasonal variations are responsible for many of the disturbances observed in watercourses. This study aims to evaluate the seasonal dynamics of benthic macrofauna in the Metyi, Bengo, Sounou, and Lo’o watercourses in the Mvila Division.
Mathias Nwaha, Jean Dzavi, Marie Anita Temgoua Zemo, Wilfreid Christiane Noёl Betsi and Rodrigue Nanfack Dongmo
doaj   +1 more source

Continental accumulation of fads2 copy numbers allows sticklebacks to thrive across a diversity of nutritional landscapes

open access: yesOikos, EarlyView.
Nutrients, including vital organic compounds, vary in availability across ecosystems, with the potential to act as a source of selection for traits that increase nutrient acquisition and biosynthesis. Compared to freshwaters, marine ecosystems are richer in the omega‐3 long‐chain polyunsaturated fatty acid (n‐3 LC‐PUFA) docosahexaenoic acid (DHA ...
Cornelia W. Twining   +12 more
wiley   +1 more source

Benthic and hyporheic invertebrate community responses to seasonal flow recession in a groundwater-dominated stream

open access: yes, 2010
Natural hydrological variability in lotic ecosystems can include prolonged periods of flow recession. A reduction in discharge is accompanied by abiotic changes in benthic and hyporheic habitats, often including reductions in s habitat availability ...
Wood, PJ   +7 more
core   +1 more source

Organisation of the benthic macroinvertebrate assemblage in tropical streams of different orders in North-Eastern Brazil

open access: yesEcología Austral, 2018
We selected streams located in north-eastern Brazil with the objective of assessing the effect of streams of different orders (1st, 2nd, 3rd) on the distribution and composition of benthic macroinvertebrates in the rainy and dry seasons.
Jessica F. Gomes Pio   +3 more
doaj   +1 more source

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