期刊
INTERNATIONAL JOURNAL OF WILDLAND FIRE
卷 30, 期 12, 页码 971-977出版社
CSIRO PUBLISHING
DOI: 10.1071/WF21071
关键词
Cape Floristic Region; De Hoop Nature Reserve; fire frequency; mediterranean; monitoring; permanent Protea plots; prescribed burns; Protea repens; Protea neriifolia
类别
资金
- National Research Foundation [87843]
- Cape Peninsula University of Technology Research Fund (URF)
The appropriate fire return interval is critical in fire-driven systems, and testing guidelines for this purpose is essential for effective biodiversity conservation. Research in Cape fynbos, South Africa, indicates that the '50% rule' is more conservative and preferred over the '90% rule' for determining fire return intervals.
The appropriate fire return interval of prescribed burns is critical in many fire-driven systems. I use a mediterranean-type ecosystem - Cape fynbos, South Africa - to test guidelines for fire return intervals. Guidelines state that at least 50% of a population of the slowest-maturing obligate seeder Protea species must have flowered for three successive seasons, or that 90% of individuals from the slowest-maturing Protea species must have flowered at least once before a fire occurrence. Whether these 'rules of thumb' will lead to similar fire return intervals for prescribed burns is unknown. I address this by assessing two obligate seeding Protea species for length of juvenile period and age at three times flowering at 17 sites across a conservation area. For the slowest maturing species, when 50% of the fastest-maturing population had flowered three times (at 11 years), no individuals had flowered three times (happens at 14 years) in the slowest-maturing population. Using the 90% rule, this was reached at 9 years in the fastest-maturing P. neriifolia population and 11 years in the slowest-maturing. The 50% rule is more conservative than the 90% rule and is preferred. I highlight the importance of testing guidelines for fire return intervals to ensure effective biodiversity conservation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据