Wildlife Action Plan 2015 Revision Process White Paper
during migratory stop overs. For these species, separate evaluations should be done for breeding and nonbreeding populations; transient populations should be included in the nonbreeding category. Te answer scale is adopted from the NatureServe evaluation tool (NatureServe 2012a) . Scores are assigned based on the estimated total number of adults found in North Carolina.
What is the estimated number of adults within North Carolina?
(a) 1–50 individuals
(b) 50–250 individuals
(c) 250–1,000 individuals
(d) 1,000–2,500 individuals
(e) 2,500–10,000 individuals
(f) 10,000–100,000 individuals
(g) 100,000–1,000,000 individuals
(h) >1,000,000 individuals
6. Range Size in North Carolina. A species may be widespread and secure within its total range, but populations in North Carolina can be imperiled. Tis metric is intended to help diferentiate the degree of imperilment for populations occurring within the state. Range size is the most restricted area within North Carolina over which the species is dis- tributed and can be measured by the number of counties where the species occurs. Range size can include counties where suitable habitat is considered to be available but surveys have not been recently conducted. If a species has distinct breeding and nonbreeding ranges in North Carolina, use the smaller range to determine a score. Some species, par- ticularly freshwater fsh species, may be native to certain river basins but are considered nonnative or invasive when introduced to river basins where they would not normally be found. For aquatic species, range size is based on the number of river basins where the spe- cies is found and is native. Assign scores based on the most restricted area (range) within North Carolina over which the species is distributed (number of counties or river basins) or where it is expected to occur based on habitat availability. Historical occurrence is not considered if appropriate habitat is no longer available.
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2015 NC Wildlife Action Plan
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