Climate Change Impact on Quiver Trees in Arid Namibia and South Africa

摘要：

To study the Quiver trees response to recent climatic changes, samples of Quiver trees were collected from their distributional range in arid Namibia and South Africa. However, data uncertainty accompanied the sample collections as well, due to missing data in 2002 and 2008 data, and only a subset is surveyed in 2008. In this paper, we utilize the partially collected Quiver trees sample data, 2002 and 2008 datasets, particularly, the total density of trees to evaluate the climate change impact on the Quiver trees population. Based on our observations, we propose the habitat measure to catch up the closeness of the Quiver trees population, which is later defining the habit distance of the trees population. Once the missing values are completed, the evaluation of climate change can be performed. The predicted values together with the real sample values are very useful in examining climate change impact on the Quiver trees.

关键词： climate change Quiver tree regression model habitat measure uncertain kriging prediction Namibia South Africa

作者: Danni Guo Renkuan Guo Yanhong Cui Guy F. Midgley Res Altwegg Christien Thiart

作者单位: Climate Change and Bioadapation Division, South African National Biodiversity Institute, Cape Town, Department of Statistical Sciences, University of Cape Town, Cape Town, South Africa

会议类型: 国际会议

会议名称: The Second International Conference on Uncertainty Theory(ICUT)(第二届不确定理论国际会议)

会议地点: 拉萨

会议语种:英文

页码: 187-194

在线出版日期: 2011-08-06（万方平台首次上网日期，不代表论文的发表时间）