Chondrilla juncea L.:Post‐fire invasiveness in Artemisia tridentata communities of western north America

摘要：

Chondrilla j uncea L.(Asteraceae), an invasive Eurasian apomictic perennial weed that increases vegetatively and from seed, has spread from the Pacific Northwest, USA into A rtemisia tridentata communities of the northern Great Basin.Over the last 150 years this region has been heavily impacted by excessive livestock grazing, the invasion of exotic annual grasses, primarily Bromus tectorum,and an increase in wildfire size and frequency.We examined the distribution,fire response and seed biology of C.j uncea to evaluate its ability to spread in burned or degraded A rtemisia tridentata communities and to expand its range within the Great Basin.

关键词： germination population dynamics root sprouting seed bank seedling establishment

作者: N.L.Shaw A.L.Hild C.L.Kinter

作者单位: USDA Forest Service,Rocky Mountain Research Station,322 E.Front Street,Suite 401,Boise,ID 83702,USA; University of W yoming,Department of ReneWAble Resources,Box 3354,Laramie,WY 82071,USA;Idaho Department of Fish and Game, Boise , ID 83712 , USA

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）