نتایج جستجو برای: coastal ecosystem
تعداد نتایج: 132086 فیلتر نتایج به سال:
Difficulties in scaling up theoretical and experimental results have raised controversy over the consequences of biodiversity loss for the functioning of natural ecosystems. Using a global survey of reef fish assemblages, we show that in contrast to previous theoretical and experimental studies, ecosystem functioning (as measured by standing biomass) scales in a non-saturating manner with biodi...
Developing countries are starting the process of planning for climate change adaptation at the national level. One of the options available is ecosystem-based adaptation (EbA), which recognizes the value of ecosystem services and biodiversity for reducing people's vulnerability to climate change. The effectiveness of EbA is increasingly recognized and EbA options have been used by least-develop...
Mangrove ecosystems dominate the coastal wetlands of tropical and subtropical regions throughout the world. They provide various ecological and economical ecosystem services contributing to coastal erosion protection, water filtration, provision of areas for fish and shrimp breeding, provision of building material and medicinal ingredients, and the attraction of tourists, amongst many other fac...
Communities along the USA coast are highly vulnerable to coastal storms. Trends in population growth, climatic events and land use are likely to exacerbate future damages. Coastal management entities are faced with decisions about how to manage resources in a manner that improves environmental quality and provides the maximum benefit for coastal populations. This is particularly true along the ...
In Morocco, the extraction of beach and dune sand for use in the construction industry is destroying significant portions of the nation’s natural heritage. The authors of this report have significant experience in evaluating coastal mining worldwide. We believe that the coastal sand mining operations that we witnessed in Morocco are the world’s largest. In addition, the environmental impacts of...
Designation as Marine Protected Areas (MPAs) can protect coastal ecosystems, but apparently has not effectively protected the rocky intertidal zone in urban Southern California. Here, illegal collecting and habitat disturbance harm coastal marine life. We surveyed day visitors to sandy beaches or adjacent rocky habitats in Orange County. Using the close-ended, double-bounded contingent valuatio...
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