NDLI: Environmental change and rain forests on the Sunda shelf of Southeast Asia: drought, fire and the biological cooling of biodiversity hotspots

Content Provider	Springer Nature Link
Author	Taylor, D. Saksena, P. Sanderson, P.G. Kucera, K.
Copyright Year	1999
Abstract	Environmental change during the Quaternary period has caused changes in the composition and structure of vegetation on the Sunda shelf of Southeast Asia. Climatic conditions drier than the present, particularly during the peak of the last ice age, led to a reduction in the extent of rain forests. Most recently, there has been a close association between drought and the occurrence of major, rain forest fires. Although many rain forest trees show adaptations to periodic drought, this is not the case for frequent or intense fires. Over evolutionary time-scales, major fires may thus have been largely confined to driver vegetation types, such as monsoon and deciduous forests, and only infrequently penetrated rain forest areas. Continental-scale distribution patterns for rain forest species reveal a number of biodiversity hotspots that are consistent for a broad range of taxonomically unrelated taxa. These biodiversity hotspots account for a relatively small part of the total extent of rain forest; they may also represent ecologically relatively stable areas. This paper discusses the location and extent of biodiversity hotspots on the Sunda shelf within the context of past and present environmental change. It finds that whatever the history of biodiversity hotspots, they are increasingly threatened by contemporary environmental change, notably a trend towards increasingly frequent and intense fires. The paper concludes that the trend is likely to continue, without major changes in those activities that degrade and precondition to fire remaining areas of rain forest.
Starting Page	1159
Ending Page	1177
Page Count	19
File Format	PDF
ISSN	09603115
Journal	Biodiversity and Conservation
Volume Number	8
Issue Number	9
e-ISSN	15729710
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	1999-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Evolutionary Biology Tree Biology Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology Ecology, Evolution, Behavior and Systematics Nature and Landscape Conservation

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