Author:
Yasuda Masatoshi,Matsumoto Jun,Osada Noriyuki,Ichikawa San'ei,Kachi Naoki,Tani Makoto,Okuda Toshinori,Furukawa Akio,Nik Abdul Rahim,Manokaran N.
Abstract
The
mechanism of general flowering in Dipterocarpaceae in the Malay
Peninsula is revealed through field survey and meteorological data
analyses. The regions of general flowering coincide with those which
experienced a low night-time temperature (LNT) c. 2 mo before
flowering. This supports the hypothesis that low air temperature induces
the development of floral buds of dipterocarps. LNT was found to be
caused by radiative cooling during dry spells in winter when the
northern subtropical ridge (STR) occasionally migrates southwards with a
dry air mass into the equatorial region. LNT events usually occur in La
Niña episodes, not in El Niño episodes as believed
previously. This is because the southward migration of the STR is
associated with the intensification of local meridional Hadley
Circulation in the western Pacific, which is strengthened in a La
Niña episode. Results suggest that El Niño-like climate
change in increased atmospheric carbon dioxide concentrations may be
critical for the tropical rain forest biome in south-east Asia.
Publisher
Cambridge University Press (CUP)
Subject
Ecology, Evolution, Behavior and Systematics
Cited by
78 articles.
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