Results 71 to 80 of about 13,186 (228)

Ranunculus calcareus and its role in lowland streams [PDF]

, 1979
Ranunculus calcareus , a species of water crowfoot which occurs in clear, nutrient-rich chalk streams, was studied. Seasonal changes in its biomass, its annual production and its fragmentation (leading to downstream movement of the plant) were ...
Dawson, F.H.
core  

Evidence on Night Movements of Macroinvertebrates to Macrophytes in a Pampean Stream [PDF]

, 2014
Nocturnal invertebrate abundance peaks in lotic systems are usually associated to drift, however, diel migrations other than drift may be important in slow-flowing systems.
Ferreiro, Nicolas Andres
core   +1 more source

A unique sessile loricate euglenid, Lepocinclis loricata sp. nov. (Euglenophyta, Phacaceae), from South Africa: Evolutionary implications

Journal of Phycology, EarlyView.
Abstract In this paper, we describe Lepocinclis loricata sp. nov. (Phacaceae), a sessile loricate euglenid that differs from all known loricate taxa by its unique combination of the presence of a lorica, monad morphology, sessile habit, and phylogenetic position within the Phacaceae. Populations of this species inhabit two turbid, silt‐rich waterbodies,
Bożena Zakryś, Sanet Janse van Vuuren, Aleksandra Kluczek, Maja Łukomska‐Kowalczyk   +3 more
wiley   +1 more source

Vegetation trajectories over 150 years of temporary ponds created in the Camargue delta (Southern France)

Restoration Ecology, EarlyView.
Abstract Introduction Temporary ponds in the Mediterranean climate have a high conservation value, but many have been severely destroyed or degraded. Pond restoration and new pond creation have been engaged widely. Evaluations of the success of such operations are generally carried out over 10–15 years and show divergent results over this timeframe. In
Hugo Fontès, Patrick Grillas, Thierry Dutoit, Antoine Gazaix, Elie Gaget, François Mesléard   +5 more
wiley   +1 more source

Phosphorus loading and carp disturbance synergistically promote dominance of free-floating macrophytes over submerged plant competitors

Ecological Indicators
Freshwater ecosystems increasingly face free-floating macrophyte invasions, which suppress submerged vegetation and phytoplankton, threatening biodiversity and ecosystem functions.
Rui Zhou, Dong Luo, Lei Li
doaj   +1 more source

Submerged macrophytes mitigate direct and indirect insecticide effects in freshwater communities. [PDF]

PLoS ONE, 2015
Understanding how ecological interactions mitigate the impacts of perturbations such as pesticides in biological communities is an important basic and applied question for ecologists.
William R Brogan, Rick A Relyea
doaj   +1 more source

Toxic metal enrichment and boating intensity: sediment records of antifoulant copper in shallow lakes of eastern England [PDF]

, 2016
Tributyltin (TBT), an aqueous biocide derived from antifouling paint pollution, is known to have impacted coastal marine ecosystems, and has been reported in the sediment of the Norfolk and Suffolk Broads, a network of rivers and shallow lakes in eastern
A Lepland, B Dahl, B Eklund, B Eklund, B Moss, CD Sayer, DA Livingston, E Ytreberg, G Madgwick, H Yang, IDL Foster, IR Patmore, J Boyle, J Hilton, J Holmes, JC Fernandes, JF Boyle, JF Boyle, JK Cochran, K Ayres, K Fent, KE Havens, KV Brix, KV Thomas, M George, M Marcheselli, ME Callow, MJ Waldock, N Tsunemasa, N Voulvoulis, NL Rose, NL Rose, NL Rose, PG Appleby, PH Dowson, R Parks, RJ Maguire, S Jana, SJ Lambert, SJ Lambert, SL Gupta, T Cresswell, X Boes   +42 more
core   +3 more sources

Effects of restoration on macrophyte and macroinvertebrate ecological status and biodiversity in lowland streams in Denmark

Restoration Ecology, EarlyView.
Abstract Introduction Habitat restoration is applied to promote ecological recovery in degraded freshwater systems. However, it remains unclear whether stream restoration measures enhance Water Framework Directive (WFD) ecological status and biodiversity.
Lisbeth Dalsgaard Romme Henriksen, Tenna Riis, Janick Lauridsen, Annette Baattrup‐Pedersen   +3 more
wiley   +1 more source

Endophytic bacteria enhance macrophyte resilience but reduce microbial network stability under eutrophication

Ecological Indicators
Lake eutrophication poses a serious threat to the biodiversity and ecosystem functions of submerged macrophytes. As symbiotic microorganisms of submerged macrophyte, endophytic bacteria can enhance plant’s stress resistance and promote its growth ...
Beibei Hao, Bin He, Siyi Zhang, Haoping Wu   +3 more
doaj   +1 more source

Influences of a submerged macrophyte on colony formation and growth of a green alga

Aquatic Biology, 2013
The effects of the submerged macrophyte Ceratophyllum demersum on the growth and morphology of the green alga Scenedesmus obliquus were assessed by conducting co-culture laboratory experiments (15 and 25°C, presence/absence of 3 g fresh wt of C. demersum
J Dong, JJ Lu, GB Li, LR Song
doaj   +1 more source