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A wetland (aerial view) Wetland conservation is aimed at protecting and preserving areas of land including marshes, swamps, bogs, and fens that are covered by water seasonally or permanently due to a variety of threats from both natural and anthropogenic hazards. Some examples of these hazards include habitat loss, pollution, and invasive species.
Environmental threats to rivers include loss of water, dams, chemical pollution and introduced species. [14] A dam produces negative effects that continue down the watershed. The most important negative effects are the reduction of spring flooding, which damages wetlands, and the retention of sediment, which leads to the loss of deltaic ...
Pages for logged out editors learn more. Contributions; Talk; Threats to wetlands
There are three basic types of freshwater ecosystems: Lentic (slow moving water, including pools, ponds, and lakes), lotic (faster moving water, for example streams and rivers) and wetlands (areas where the soil is saturated or inundated for at least part of the time). [2] [1] Freshwater ecosystems contain 41% of the world's known fish species. [3]
There are 15 to 22 million hectares of wetlands in the Mediterranean Region, a fourth of which are artificial, such as dam reservoirs and fish-farming ponds. [1] The Mediterranean region is also a hotspot of global biodiversity, but the greatest direct threat to that biodiversity is the disappearance of these ecosystems. Plants and animals ...
Commonly, wetland loss is defined as the conversion of vegetated wetlands into either uplands or drained areas, unvegetated wetlands (e.g., mudflats), or (submerged habitats (open water). According to this, and similar definitions, wetland loss includes both land loss and land consumption as components of it. In historic times, both wetland and ...
Threats to the Hokersar wetland include human activities and encroachments. The wetland has been reduced from 18.75 km 2 (7.24 sq mi) in 1969 to 13.00 km 2 (5.02 sq mi) in 2008. Over time, many areas of the wetland have been converted into paddy cultivations.
August 2016 - First Indian to earn the Luc Hoffmann Award, credited for his work on East Kolkata Wetland. [3] [6] [2] 2017 - Published the book The Trash Diggers, exploring the lives of individuals living in a dump site on the fringes of eastern Kolkata. ISBN 9780199474141 [3] [9] Recognized as an Ashoka Fellow. [6]