Burn Severity and Non-Native Species in Yosemite National Park, California, USA

Fire Ecology

Kristen M. Kaczynski¹  Susan W. Beatty¹  Kristin N. Marshall²  Jan W. van Wagtendonk³ 

[1] Department of Geography, University of Colorado, Boulder, USA;Graduate Degree Program in Ecology and Department of Forestry Rangeland and Watershed Stewardship, Colorado State University, Fort Collins, USA;Western Ecological Research Center, Yosemite Field Station, US Geological Survey, El Portal, USA

关键词: Abies concolor;    Abies magnifica;    bull thistle;    burn severity;    Cirsium vulgare;    non-native plants;    Yosemite National Park;   

DOI  :  10.4996/fireecology.0702145

学科分类：生态、进化、行为和系统

来源: Springer

【 摘 要 】

We examined non-native species density three years after the Tuolumne Fire, which burned 1540 ha in upper montane forest in California, USA. We sampled 60 plots, stratified by burn severity (low, moderate, or high severity) and landscape position (lowland or upland). We detected non-native species in 8 of 11 (73 %) of high severity lowland sites and in 5 of 10 (50 %) of moderate severity lowland sites but, overall, richness and abundance was low. We detected only five non-native species, of which bull thistle (Cirsium vulgare [Savi] Ten.) was the most common. Although non-native abundance is currently low, we recommend continued low intensity monitoring, especially on high severity burned lowland sites.

【 授权许可】

CC BY