Results 31 to 40 of about 2,298 (172)
Limnology and Oceanography: Methods, EarlyView.Abstract Tailwaters are ubiquitous and highly managed ecosystems whose food webs often rely disproportionately on autochthonous energy. In situ continuous dissolved oxygen data are increasingly being used to estimate gross primary productivity and ecosystem respiration in rivers, but this approach is complicated in tailwaters, where upriver ...
Ian W. Bishop +5 more
wiley +1 more source
Oikos, EarlyView.Understanding the scales and mechanisms by which species composition interacts with ecosystem functions is critical for forecasting the effects of environmental perturbations on ecosystem services. However, the linkages between what regulates the ecosystem functions of dispersal‐capable networks of communities (metacommunities) and what regulates a ...
Thomas P. Shannon, Evelyn E. Gaiser
wiley +1 more source
Factors affecting the distribution patterns of aquatic macrophytes
Limnological Review, 2014 Aquatic macrophytes constitute important components of many freshwater ecosystems. The manifold role of aquatic macrophytes in freshwater habitats is closely linked to their distribution, which in turn depends on a myriad of factors.
Dar Naseer Ahmad +2 more
doaj +1 more source
A tipping point for tipping points
Oikos, EarlyView.Tipping points (TPs) – often understood as abrupt changes to a system – have become a popular framework for ecology and environmental science across spatial and temporal scales. The underlying, quantitative foundation of TP theory is built on mathematical models from catastrophe and predator–prey theories.
David G. Jenkins +1 more
wiley +1 more source
Ecological biomechanics of marine macrophytes
Journal of Experimental Botany, 2022 AbstractMacroalgae and seagrasses in coastal habitats are exposed to turbulent water currents and waves that deform them and can rip them off the substratum, but that also transport essential water-borne substances to them and disperse their propagules and wastes.
openaire +2 more sources
River Research and Applications, EarlyView.ABSTRACT Florida's regulatory framework requires the establishment of minimum flows to protect aquatic ecosystems and water resources from significant harm. One of the primary methods used to evaluate significant harm is assessment of instream habitat, which relies on Habitat Suitability Criteria (HSC) curves that relate flow regimes and habitat ...
Eric J. Nagid, Kym Rouse Holzwart
wiley +1 more source
Analyse multi-compartiments et rôles fonctionnels des macrophytes dans les hydrosystèmes
Sciences, Eaux & Territoires, 2008 Les macrophytes sont mis en relation avec les autres compartiments des hydrosystèmes, tant abiotiques (masse d'eau, milieu physique) que biotiques (algues épiphytes, invertébrés, poissons).
J. HAURY +4 more
doaj
River Research and Applications, EarlyView.ABSTRACT Relieving barriers and increasing free flowing rivers is a global imperative to restore habitat connectivity for migratory fish stocks. While reducing river fragmentation will certainly improve biodiversity, the spread of non‐native species throughout a river system may be facilitated as an inadvertent outcome.
Matthew Harwood +5 more
wiley +1 more source
Environmental Stressors Influence Spatial Complexity in a Fluvial Macrophyte meadow
Remote Sensing in Ecology and Conservation, EarlyView.This research investigates the nonlinear relationships between environmental stressors and the fine‐scale spatial complexity of a fluvial macrophytes meadow. The use of multivariate spatial analysis allowed us to identify two major environmental gradients (nutrients and light) and two major complexity gradients (related to abundance and fragmentation).
Arthur de Grandpré +2 more
wiley +1 more source
Revista Brasileira Multidisciplinar - ReBraM /Brazilian Multidisciplinay Journal, 2014 Macrophytes have different morphological structural complexities, offering to animals the availability of various niches. These plants are also an important substrate for the development of periphyton, which has a high nutritional value and is one of the
Nathalie Aparecida De Oliveira Sanches +1 more
doaj +1 more source