Mountain wetlands in Mediterranean regions are particularly threatened in agricultural environments due to anthropogenic activity. An integrated study of source-to-sink sediment fluxes was carried out in an agricultural catchment that holds a small permanent lake included in the European NATURA 2000 Network. More than 1000 yrs of human intervention and the variety of land uses pose a substantia...

The Three Gorges Dam (TGD) on the upper Changjiang (Yangtze River), China, disrupts the continuity of Changjiang sediment delivery to downstream and coastal areas. In this study, which was based on 54 years of annual water and sediment data from the mainstream and major tributaries of Changjiang, sediment deposition induced by the TGD in 2003–2008 was quantified. Furthermore, we determined the ...

Continued sea-level rise and coastal development have led to considerable concerns on coastline changes along inhabited islands. Analysis of long-term coastline changes of islands is however limited due to unavailable data and the cost of field work. In this study, high-resolution images taken from 1970–2011 at an interval of about 10 years and topographic maps were collected to determine coast...

In a recent study, we showed how local-scale climate change impacts (increased temperature, reduced rainfall, shifts in peak rainfall) affected the hydrology of channelised lowland European river (reduced flow, reduction flood events, increased siltation, macrophyte growth), allowing native fish species to recolonise bankside zone and reduce density invasive round goby Neogobius melanostomus by...

Abstract Only targeted and sustainable management will preserve extensively managed grasslands, one of Europe’s most species-rich habitats. Traditionally, largely abandoned irrigation might prove a strategy, but the understanding interactions among irrigation, soil properties plant species are low for generally humid ecoregion. We aimed at advancing our ecology by disentangling community respon...

An estuarine turbidity maximum (ETM) is a region of elevated suspended sediment concentration (SSC) resulting from residual transport mechanisms driven by river flow, tides, and salinity-induced density gradients (SalDG). However, in energetic highly turbid environments such as the Yangtze Estuary, SedDG may also substantially contribute to formation maintenance ETM. Since this mechanism relati...

The development along the coastal zone has led to host of problems such as erosion, siltation, flooding, loss resources and destruction fragile marine habitats. erosion threatens zone, which affects people's economic, tourist, recreational life. main reason is due Khan Younis breakwater sea waves working on empty beachy sand, thereby flooding scouring area it ebbs removing part unconsolidated s...

The light-limitation hypothesis was tested to assess whether water turbidity had caused the decline of a Mediterranean Posidonia oceanica (L.) Delile meadow in an area affected by a harbor. The annual growth, photosynthesis and rhizome starch concentrations of seagrass were measured and related to changes in light availability and dissolved nutrient concentration along a gradient of meadow degr...

More than half of land in the U.S. is privately owned and covers most of known endangered species habitat. An understanding of private landowners' attitudes towards conservation may help to bridge the science-practice gap in regards to conservation initiatives. Aquatic biodiversity is particularly imperiled; in the United States headwaters and isolated wetlands receive little protection through...

Vegetation coverage can be inappropriately used, especially in the absence of proper planning, and can result in a reduction of the occupied area. Demographic and economic alterations are factors that contribute to the degradation of vegetation coverage in landscape units. In addition, because vegetation is essential for protection of recharge areas in aquifers, the fragmentation of habitats in...