U.S. Geological Survey Home Page USGS Patuxent Wildlife Research Center Science Meetings; dedicated to Chandler S. Robbins USGS Patuxent Wildlife Research Center; Science Meetings dedicated to Chandler S. Robbins Dedicated to Chan Robbins USGS Patuxent Wildlife Research Center; Science Meetings dedicated to Chandler S. Robbins Poster Abstracts from USGS Patuxent Wildlife Research Science Meetings, October, 2006
Patuxent Science Meeting 2006 Poster Abstract

Development of a protocol for monitoring freshwater wetlands at

Acadia National Park

Neckles HA, Guntenspergen GR, Gilbert AT

Wetlands of Acadia National Park are threatened by a suite of anthropogenic stresses

associated with increasing visitor pressure and rapid residential development of watersheds

outside the park boundary. A monitoring program is essential to help resource managers

document trends in wetland condition, evaluate potential threats, and identify areas of

management concern. Through a preliminary pilot project, we identified several abiotic and

biotic variables that showed significant differences between herbaceous emergent wetlands

subject to hydrologic disturbance and undisturbed wetlands (specific conductance of surface

water and shallow ground water; pH of surface water and shallow ground water; vegetation

community composition). These variables were tested on an independent set of wetlands to

confirm their robustness as indicators of wetland condition and to determine their applicability to

multiple wetland types. We also conducted intensive sampling on a subset of wetlands within

distinct types to define the spatial sampling design necessary to characterize wetland

condition. The relationship between landscape attributes and wetland ecosystem condition is

being used to assess the susceptibility of park wetlands to anthropogenic stressors as a basis

for a stratified sampling design. This information is being synthesized into a wetland monitoring

protocol for Acadia National Park that is ready for field implementation.

Friday, September 22, 2006



Return to Posters page