
Symposia Sponsored by the
Association of
State Wetland Managers
S15. How Much Science
is Enough? Measuring No Net Loss/Net Gain of Wetlands
On Earth Day 2004 President Bush set a historic
precedent by establishing a goal of a net gain of wetlands targeting
3 million acres of restoration, enhancement and protection over the
next five years. These gains will not be achieved through federal
and state regulatory programs which are designed (at best) to
achieve no net loss of wetlands altered through permitting. Rather
it is the Conservation Title of the Farm Bill, the North American
Waterfowl Conservation Act and other similar federal, state and
local nonregulatory efforts that will restore and protect the
acreage that will be applied toward achieving the President’s Goal.
The President’s goal will direct greater scrutiny and higher
accountability to ongoing protection and restoration efforts.
The purpose of this symposium was to examine the
tools used at the national, state, and local level to measure
wetlands status and trends. These include U.S/ FWS reports as well
as the NRCS’ National Resources Inventory and mapping efforts such
as the National Wetlands Inventory. Trends reports, functional
assessment and high quality, updated wetland maps are essential
tools to measuring progress towards net gain. This symposium addressed the complex challenges inherent in measuring changes in
wetland acreage.
S16. How Much Science
is Enough? Assessing Cumulative Impacts to Wetland Resources
For many years one of the most difficult aspects of wetlands
regulation and management has been cumulative losses. The loss of
numerous small and large wetlands over time has profound impacts on
watershed hydrology which in turn impacts biodiversity, flood
retention, water quality maintenance and other important wetland and
water shed functions. Assessing the importance and effects of
cumulative losses—i.e., what wetland losses mean in the aggregate as
well as on an individual basis--has posed s significant challenge
for regulators as well as restoration program managers. The Federal
Agencies’ National Mitigation Action Plan is moving the Section 404
program towards a "watershed approach" in part to address cumulative
impacts. This symposium examined current approaches to
addressing cumulative impacts and identify useful future directions.
S17. How Much Science
is Enough? Regionalizing the
Corps’ 87 Wetlands Delineation Manual
The
U.S. Army Corps of Engineers is working in collaboration with
states, federal agencies and others to develop regional supplemental
criteria to refine the Corps 87 Wetlands Delineation Manual. A
regionalized approach is undergoing peer review and field testing
Alaska and another similar project is underway in the arid west.
The Corps has set some general priorities for developing
supplemental material for the remainder of the country. Many state
wetland programs, both regulatory and nonregulatory, reference the
Corps’ 87 wetlands Delineation manual as the basis for delineating
wetlands to carry out state programs. This symposium described
ongoing cooperative efforts to regionalize the manual and provide
the opportunity for discussion on the issues that might need to be
addressed in other areas of the country to further improve the
application of good science to wetlands delineation.
Invited Symposia
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