Journal
JOURNAL OF ECOLOGY
Volume 103, Issue 2, Pages 473-478Publisher
WILEY
DOI: 10.1111/1365-2745.12367
Keywords
disturbance; mesic savannas; plant populations and community dynamics; savannah; semi-arid savannas; vegetation dynamics; woody encroachment
Categories
Funding
- NERC [NE/I528334/1]
Ask authors/readers for more resources
Fire is an integral process in savannas because it plays a crucial role in altering woody cover of this globally important biome. In this study, we examine the long-term effects of varying fire frequencies over a 60-year time period in South Africa. We analyse the effects of fire exclusion and of experimental burns every 1, 2 and 3years on woody cover, tree abundance and stem structure on a wet and dry savanna. Increased fire frequency did not display a consistent effect on woody cover. The presence of fire, irrespective of frequency, was much more influential in lowering tree abundance in the wet savanna than the dry savanna. In the dry savanna, fire was more effective in greatly increasing coppicing in trees, when compared to the wet savannas.Synthesis. The effects of fire on three measures of savanna woody vegetation differed between wet and dry experimental sites. We suggest that vegetation responses to fire are dependent on local conditions, which are likely influenced by rainfall. Therefore, we suggest that management strategies should take account of whether a savanna is a wet or dry system when implementing fire management regimes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available