Part A Which of the following statements about the decline of wetland ecosystems
ID: 120594 • Letter: P
Question
Part A Which of the following statements about the decline of wetland ecosystems in the United States are true? Hints Between 2004 and 2009 wetland area declined by an estimated 62,300 acres. Marine and estuarine intertidal wetlands realized a slight increase in area between 2004 and 2009. Studies found that in the five years of 2004-2009 freshwater wetlands have declined the most. The amount of wetland decline is very easy to estimate. Wetland decline in recent years was due solely to land use conversion.Explanation / Answer
A) Answer.1) 2004-2009 wetland area declined by an estimated 62300 acres - True
2) Marine & estuarine intertidal wetlands realized a slight increase in area between 2004-2009 - False - marine and estuarine intertidal wetlands declined by an estimated 84,100 acres (34,050 ha) or an estimated 1.4 percent between 2004 and 2009. The majority of these losses (73 percent) were to deepwater bay bottoms or openocean. Losses of estuarine emergent (salt marsh) and changes in marine and estuarine non-vegetated wetlands reflected the impacts of coastal storms and relative sea level rise along the coastlines of the Atlantic and Gulf of Mexico. The majority (99 percent) of all estuarine emergent losses were associated with processes related to the marine environment such as saltwater inundation and/or coastal storm events.
3) Studies found that in five years of 2004-2009 freshwater wetlands declined the most. - False
Declines in freshwater forested wetland area (633,100 acres or 256,300 ha) negated area gains in freshwater emergent and shrub categories.
4)The amount of wetland decline is very easy to estimate - False. It is difficult to estimate, Because large area should be covered.
5)wetland area decline in recent years was due solely to land use conversion - False