Increasing day-length induces spring flushing of tropical dry forest trees in the absence of rain

In many conspecific trees of >50 species highly synchronous bud break with low inter-annual variation was observed during the late dry season, around the spring equinox, in semideciduous tropical forests of Argentina, Costa Rica, Java and Thailand and in tropical savannas of Central Brazil. Bud b...

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Main Authors: Rivera G., Elliott S., Caldas L.S., Nicolossi G., Coradin V.T., Borchert R.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-0036739741&partnerID=40&md5=fff62086f034d12829633d5574bd2474
http://cmuir.cmu.ac.th/handle/6653943832/5486
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Institution: Chiang Mai University
Language: English
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spelling th-cmuir.6653943832-54862014-08-30T02:56:35Z Increasing day-length induces spring flushing of tropical dry forest trees in the absence of rain Rivera G. Elliott S. Caldas L.S. Nicolossi G. Coradin V.T. Borchert R. In many conspecific trees of >50 species highly synchronous bud break with low inter-annual variation was observed during the late dry season, around the spring equinox, in semideciduous tropical forests of Argentina, Costa Rica, Java and Thailand and in tropical savannas of Central Brazil. Bud break was 6 months out of phase between the northern and southern hemispheres and started about 1 month earlier in the subtropics than at lower latitudes. These observations indicate that "spring flushing", i.e., synchronous bud break around the spring equinox and weeks before the first rains of the wet season, is induced by an increase in photoperiod of 30 min or less. Spring flushing is common in semideciduous forests characterized by a 4-6 month dry season and annual rainfall of 800-1,500 mm, but rare in neotropical forests with a shorter dry season or lower annual precipitation. Establishment of new foliage shortly before the wet growing season is likely to optimize photosynthetic gain in tropical forests with a relatively short growing season. 2014-08-30T02:56:35Z 2014-08-30T02:56:35Z 2002 Article 09311890 10.1007/s00468-002-0185-3 TRESE http://www.scopus.com/inward/record.url?eid=2-s2.0-0036739741&partnerID=40&md5=fff62086f034d12829633d5574bd2474 http://cmuir.cmu.ac.th/handle/6653943832/5486 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description In many conspecific trees of >50 species highly synchronous bud break with low inter-annual variation was observed during the late dry season, around the spring equinox, in semideciduous tropical forests of Argentina, Costa Rica, Java and Thailand and in tropical savannas of Central Brazil. Bud break was 6 months out of phase between the northern and southern hemispheres and started about 1 month earlier in the subtropics than at lower latitudes. These observations indicate that "spring flushing", i.e., synchronous bud break around the spring equinox and weeks before the first rains of the wet season, is induced by an increase in photoperiod of 30 min or less. Spring flushing is common in semideciduous forests characterized by a 4-6 month dry season and annual rainfall of 800-1,500 mm, but rare in neotropical forests with a shorter dry season or lower annual precipitation. Establishment of new foliage shortly before the wet growing season is likely to optimize photosynthetic gain in tropical forests with a relatively short growing season.
format Article
author Rivera G.
Elliott S.
Caldas L.S.
Nicolossi G.
Coradin V.T.
Borchert R.
spellingShingle Rivera G.
Elliott S.
Caldas L.S.
Nicolossi G.
Coradin V.T.
Borchert R.
Increasing day-length induces spring flushing of tropical dry forest trees in the absence of rain
author_facet Rivera G.
Elliott S.
Caldas L.S.
Nicolossi G.
Coradin V.T.
Borchert R.
author_sort Rivera G.
title Increasing day-length induces spring flushing of tropical dry forest trees in the absence of rain
title_short Increasing day-length induces spring flushing of tropical dry forest trees in the absence of rain
title_full Increasing day-length induces spring flushing of tropical dry forest trees in the absence of rain
title_fullStr Increasing day-length induces spring flushing of tropical dry forest trees in the absence of rain
title_full_unstemmed Increasing day-length induces spring flushing of tropical dry forest trees in the absence of rain
title_sort increasing day-length induces spring flushing of tropical dry forest trees in the absence of rain
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-0036739741&partnerID=40&md5=fff62086f034d12829633d5574bd2474
http://cmuir.cmu.ac.th/handle/6653943832/5486
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