Results 91 to 100 of about 26,672 (201)

Renaturierung kleiner Lössbäche – ein Beitrag der Ökologischen Landwirtschaft zum Naturschutz [PDF]

open access: yes, 2013
As a part of the interdisciplinary research project ”Integration of nature protection goals with organic farming: an the example from the Hessian ”state domain” [Staatsdomäne] area Frankenhausen”, different restoration measures have been carried out ...
Braukmann, Ulrich   +4 more
core  

Spatial variability in the hyporheic zone refugium of temporary streams [PDF]

open access: yes, 2011
A key ecological role hypothesized for the hyporheic zone is as a refugium that promotes survival of benthic invertebrates during adverse conditions in the surface stream.
Reid, I, Stubbington, R, Wood, PJ
core   +1 more source

Distributional patterns and habitat associations of sturgeon chub in western Missouri River tributaries of South Dakota

open access: yesJournal of Fish Biology, EarlyView.
Abstract There is a growing body of literature that suggests riverine fish are some of the most threatened taxa on a global scale. Similarly, the literature suggests less‐altered tributaries may offer refugia for large‐river specialists. The greater Mississippi River basin, including the Missouri River system, has been subjected to anthropogenic ...
Mitchell R. Magruder   +2 more
wiley   +1 more source

Influence of Chironomus riparius (Diptera, Chironomidae) and Tubifex tubifex (Annelida, Oligochaeta) on oxygen uptake by sediments. Consequences of uranium contamination [PDF]

open access: yes, 2008
The diffusive oxygen uptake (DOU) of sediments inhabited by Chironomus riparius and Tubifex tubifex was investigated using a planar oxygen optode device, and complemented by measurements of bioturbation activity.
Bonzom, Jean-Marc   +5 more
core   +3 more sources

Short‐term performance responses of an intertidal fish to sedimentation and warming

open access: yesJournal of Fish Biology, EarlyView.
Abstract Climate change is altering coastal ecosystems by causing environmental fluctuations, such as increases in temperature and turbidity, which pose major implications for fish physiology and behaviour. Increases in temperature affect fish food intake, swimming capacity and oxygen delivery, while increases in turbidity can impair or enhance prey ...
Anna Carolina Resende   +3 more
wiley   +1 more source

Evaluación de los efectos de la urbanización en los arroyos de Tierra del Fuego [PDF]

open access: yes, 2017
We set out to understand how urbanization affects streams in Ushuaia, Tierra del Fuego. Paired ttestsand linear regressions were used to compare physico-chemical stream habitat variables (i.e., temperature,turbidity, conductivity, dissolved oxygen and pH)
Anderson, Christopher Brian   +3 more
core  

A new substrate for sampling deep river macroinvertebrates [PDF]

open access: yes, 2009
We compared macroinvertebrate communities colonising multiplate samplers constructed from perspex or tempered hardboard (wood) with an alternative artificial substrate constructed from folded coconut fibre matting (coir) enclosed in nylon netting ...
Chadderton, W. Lindsay   +2 more
core   +2 more sources

Feasibility of restoring native oyster reefs in highly modified urban estuaries

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Urbanized estuaries are highly altered systems characterized by modified shorelines, degraded marine habitats, and abundant non‐native species. In South Australia's largest urbanized estuary, community‐based restoration initiatives aim to restore native flat oyster reefs (Ostrea angasi) lost over a century ago.
Ishtar Kenny   +2 more
wiley   +1 more source

Linking Biologic Metrics to Hydrologic Characteristics in Austin, Texas Streams [PDF]

open access: yes, 2011
This report compiles various hydrological information from several Austin creeks (including Waller) to study their impact on aquatic life.Urbanization can alter the hydrology of creeks as land use changes as represented by increases in impervious cover ...
Richter, Aaron
core   +1 more source

Individual and combined effects of shading and habitat complexity on benthic macroinvertebrate communities in a mesocosm stream experiment (São Paulo, Brazil)

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Agricultural activities are a major driver of biodiversity loss and ecosystem degradation in subtropical streams, often altering macroinvertebrate community structure and associated ecosystem functions. Although restoration strategies increasingly target these impacts, the relative importance of riparian shading and in‐stream ...
Mariana Morilla   +8 more
wiley   +1 more source

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