The purpose of these guidelines is to update and expand the original guidelines on protected areas legislation published in 1980 and to reflect new developments and emerging issues.
Among all forest types on Earth, the greatest diversity of living organisms is found in the tropical rainforest. Also called tropical wet evergreen forest, this forest type occurs in those parts around the equator with over 2,000 millimetres of annual rainfall distributed over most of the year. Dry periods with less than 60 millimetres rainfall occur only for a few weeks at most.
Biological invasions cause ecological and economic impacts across the globe. However, it is unclear whether there are strong patterns in terms of their major effects, how the vulnerability of different ecosystems varies
The ‘Environmental Knowledge for Disaster Risk Management (ekDRM)’ project aims at capacity development in disaster risk management by advancing environmental knowledge, particularly the use of statistics and space technology including remote sensing & GIS for decision support systems (DSS); spatial planning for Na-tech disasters within the
Introductions or invasions of nonnative organisms can mediate major changes in the trophic structure of aquatic ecosystems. Here we document multitrophic level impacts in a spatially extensive system that played out over more than a century.
The early stages of biological invasions are rarely observed, but can provide significant insight into the invasion process as well as the influence vectors have on invasion success or failure.
Introduction of non-indigenous alien species is being reported nowadays as
one of the most serious and potential sources of stress to the marine systems. They cause disruptions of native communities and detrimental economic impacts on fisheries in many temperate marine
areas.
