Organismal diversity among and within species may affect ecosystem function with effects transmitting across ecosystem boundaries. Whether recipient communities adjust their composition, in turn, to maximize their function in response to changes in donor composition at these two scales of diversity is unknown. We use small stream communities that rely on riparian subsidies as a model system. We...

2. PLANT-BASED REMEDIATION USING NONTARGET PLANTS .........................................................................92 2.1 Rhizosphere Systems ..........................................................................................................................................92 2.2 Plant-Based Remediation Systems Using Trees .............................................................

The Lotus has been the symbol of purity for thousands of years; contaminations and pathogens are washed off the surfaces of Lotus and some other plants with rain or even dew. After the introduction of scanning electron microscopy, we were able to resolve the mechanism behind this phenomenon. It took some further decades before in-depth studies on self-cleaning with plants were conducted and the...

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The acceleration of urbanization and rapid development of economy led to making surface water pollution problem becoming more critical. Water treatment technologies can be generally classified as insitu or ex-situ. In this paper, a comprehensive review describing the latest surface water remediation developments and technologies that can be suitable for in-situ applications. The review covers t...

Remote sensing of terrestrial vegetation has been successful thanks to the unique spectral characteristics of green vegetation, low reflectance in red and high reflectance in Near-InfraRed (NIR). These spectral characteristics were used to develop vegetation indices, including Normalized Difference Vegetation Index (NDVI). However, the NIR absorption by water and light scattering from suspended...

BACKGROUND Nowadays, aquatic organisms are used as bio-indicators to assess ecological water quality in western regions, but have hardly been used in an Iranian context. We, therefore, evaluated the suitability of several indices to assess the water quality for an Iranian case study. METHODS Measured data on biotic (fish and macroinvertebrates) and abiotic elements (28 physicochemical and hab...

A. M. Ellison ([email protected]) , Harvard Forest, Harvard Univ., 324 North Main Street, Petersham, MA 01366, USA . – L. Adamec , Inst. of Botany, Academy of Sciences of the Czech Republic, Section of Plant Ecology, Dukelsk á 135, CZ-379 82 T ř ebo ň , Czech Republic. Oikos 000: 1–11, 2011 doi: 10.1111/j.1600-0706.2011.19604.x © 2011 Th e Authors. Oikos © 2011 Nordic Society Oikos Subje...

This mini-review summarizes our experimental data devoted to constitutive and inducible mechanisms of defense in biosystems of various levels of organization. Autoand heterotrophic components of the transformed hydroecosystems are taken into consideration. The role of higher aquatic plants in the defense mechanisms is considered.