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1 March 2003 EVALUATING VERNAL POOLS AS A BASIS FOR CONSERVATION STRATEGIES: A MAINE CASE STUDY
Aram J. K. Calhoun, Tracey E. Walls, Sally S. Stockwell, Mark McCollough
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Abstract

Vernal pools in northeastern North America are typically seasonal woodland pools that support breeding populations of amphibians and invertebrates dependent upon fishless environments for successful reproduction. A survey of 304 vernal pools in southern, central, and northern Maine, USA was conducted to assess pool physical characteristics, landscape setting, and presence of pool-breeding amphibians for the purpose of guiding potential pool conservation strategies. In particular, information on reproductive effort by pool-breeding amphibians was used to assess the statewide applicability of the Maine Natural Resources Protection Act's proposed definition of Significant Vernal Pool, a category of Significant Wildlife Habitats that allows closer environmental review of proposed impacts to vernal pools. The results of our study show regional differences in pool characteristics and amphibian usage. Defining “significance” based on number of egg masses and diversity of vernal pool indicator species is a useful tool but should be considered in the context of such landscape characteristics as availability of suitable terrestrial habitat and distribution of other breeding habitats and wetlands.

Aram J. K. Calhoun, Tracey E. Walls, Sally S. Stockwell, and Mark McCollough "EVALUATING VERNAL POOLS AS A BASIS FOR CONSERVATION STRATEGIES: A MAINE CASE STUDY," Wetlands 23(1), 70-81, (1 March 2003). https://doi.org/10.1672/0277-5212(2003)023[0070:EVPAAB]2.0.CO;2
Received: 11 February 2002; Accepted: 1 November 2002; Published: 1 March 2003
JOURNAL ARTICLE
12 PAGES

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KEYWORDS
amphibians
conservation planning
isolated wetland
vernal pools
Wetland conservation
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