Arboriculture & Urban Forestry 37(3): May 2011 Camper recreation types At Colorado State Parks, the type of recreation vehicle camp- ers used varied [n = 238 (only personal surveys asked for this information) and then weighted by 2008 camper counts]. Rec- reational vehicle (RV) users were the most common (34%) camping type and campers with tents (85%) were the most likely to have firewood (Table 2). At National Parks, the camp- ing/vehicle type proportions were different than State Parks, with tent-camping the most common (49%), and again campers with tents (67%) were most likely to have firewood (Table 2). State Origins of Firewood Proportions of campers bringing firewood from out-of-state origins varied between parks and states. At Colorado State Parks, only four percent of campers brought firewood from outside of the state, or approximately 2,358 campers per year (Table 3; Figure 2a). Of the four percent of Colorado State Park campers with out-of-state wood, 10% were from neighboring states and 90% from nonneighboring states (Table 3; Figure 2a). The overall proportion of National Park campers who brought firewood from out-of-state origins to the 13 National Park campgrounds was 39% (37% of all firewood was out-of- state), or, when weighted with National Park visitor statistics, 329,919 campers in one year. Some campers had wood from two state origins, so the risk analysis indicated 360,046 out-of- state wood sources were brought by 329,919 campers in one year (Table 3; Figure 2a). The percentage of campers bringing 131 firewood from out of state ranged from 10% to 58% among the states surveyed (Table 3). Of campers with out-of-state wood, 12% came from the park state, 47% from a neighboring state, and 41% from a nonneighboring state (Table 3; Figure 2a). The proportion of firewood from outside the western United States (east of NM, CO, WY, and MT, or non-U.S. sources) varied by state, ranging from three percent in Wyo- ming to nine percent in Nevada (Table 3; Figure 2b). The Na- tional Park mean of five percent, combined with 2008 NPS visitor statistics, indicated that approximately 46,000 camp- ers brought firewood to these parks from outside the west- ern United States in one year (Table 3; Figure 2b). Overall, 83% of firewood from outside the western United States was brought by campers who lived outside the western U.S. (state means ranged from 50% in Arizona, to 100% in Nevada) (Ta- ble 3; Figure 2b). Only two percent of Colorado State Park campers brought wood from nonwestern states; this equated to a risk of 1,126 campers in one year (Table 3; Figure 2b). The repeated yearly surveys in 2007, 2008, and 2009 at the Great Sand Dunes National Park and Preserve and Rocky Mountain National Park of Colorado indicate simi- lar proportions of campers brought out-of-state firewood in each year surveyed: 5% to 12% at Rocky Mountain, and 6% to 14% at Great Sand Dunes (Figure 3a). The per- centages of campers from Colorado, neighboring states and nonneighboring states with out-of-state firewood re- mained fairly constant over the three years (Figure 3a). Figure 2. Home states (park state, neighboring state or nonneigh- boring state) of campers with firewood from out-of-state (a), and from nonwestern United State origins (b), at seven Colorado State Parks in 2008 and 13 western U.S. National Parks in 2009. Figure 3. Home states (park state, neighboring state or nonneigh- boring state) of campers with firewood from out-of-state (a), and firewood from in-state (b), at Rocky Mountain (RMNP) and Great Sand Dunes (GSDNPP) National Parks, Colorado, over three years of surveys (2007, 2008, and 2009). ©2011 International Society of Arboriculture
May 2011
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