Satellite-based characterization of climatic conditions before large-scale general flowering events in Peninsular Malaysia

General flowering (GF) is a unique phenomenon wherein, at irregular intervals, taxonomically diverse trees in Southeast Asian dipterocarp forests synchronize their reproduction at the community level. Triggers of GF, including drought and low minimum temperatures a few months previously has been lim...

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Main Authors: Azmy, M. M., Hashim, M., Numata, S., Hosaka, T., Noor, N. S. M., Fletcher, C.
Format: Article
Language:English
Published: Nature Publishing Group 2016
Subjects:
Online Access:http://eprints.utm.my/72186/1/MazlanHashim2016_SatellitebasedCharacterizationofClimaticConditions.pdf
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author Azmy, M. M.
Hashim, M.
Numata, S.
Hosaka, T.
Noor, N. S. M.
Fletcher, C.
author_facet Azmy, M. M.
Hashim, M.
Numata, S.
Hosaka, T.
Noor, N. S. M.
Fletcher, C.
author_sort Azmy, M. M.
collection ePrints
description General flowering (GF) is a unique phenomenon wherein, at irregular intervals, taxonomically diverse trees in Southeast Asian dipterocarp forests synchronize their reproduction at the community level. Triggers of GF, including drought and low minimum temperatures a few months previously has been limitedly observed across large regional scales due to lack of meteorological stations. Here, we aim to identify the climatic conditions that trigger large-scale GF in Peninsular Malaysia using satellite sensors, Tropical Rainfall Measuring Mission (TRMM) and Moderate Resolution Imaging Spectroradiometer (MODIS), to evaluate the climatic conditions of focal forests. We observed antecedent drought, low temperature and high photosynthetic radiation conditions before large-scale GF events, suggesting that large-scale GF events could be triggered by these factors. In contrast, we found higher-magnitude GF in forests where lower precipitation preceded large-scale GF events. GF magnitude was also negatively influenced by land surface temperature (LST) for a large-scale GF event. Therefore, we suggest that spatial extent of drought may be related to that of GF forests, and that the spatial pattern of LST may be related to that of GF occurrence. With significant new findings and other results that were consistent with previous research we clarified complicated environmental correlates with the GF phenomenon.
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spelling utm.eprints-721862017-11-23T06:19:25Z http://eprints.utm.my/72186/ Satellite-based characterization of climatic conditions before large-scale general flowering events in Peninsular Malaysia Azmy, M. M. Hashim, M. Numata, S. Hosaka, T. Noor, N. S. M. Fletcher, C. G70.212-70.215 Geographic information system General flowering (GF) is a unique phenomenon wherein, at irregular intervals, taxonomically diverse trees in Southeast Asian dipterocarp forests synchronize their reproduction at the community level. Triggers of GF, including drought and low minimum temperatures a few months previously has been limitedly observed across large regional scales due to lack of meteorological stations. Here, we aim to identify the climatic conditions that trigger large-scale GF in Peninsular Malaysia using satellite sensors, Tropical Rainfall Measuring Mission (TRMM) and Moderate Resolution Imaging Spectroradiometer (MODIS), to evaluate the climatic conditions of focal forests. We observed antecedent drought, low temperature and high photosynthetic radiation conditions before large-scale GF events, suggesting that large-scale GF events could be triggered by these factors. In contrast, we found higher-magnitude GF in forests where lower precipitation preceded large-scale GF events. GF magnitude was also negatively influenced by land surface temperature (LST) for a large-scale GF event. Therefore, we suggest that spatial extent of drought may be related to that of GF forests, and that the spatial pattern of LST may be related to that of GF occurrence. With significant new findings and other results that were consistent with previous research we clarified complicated environmental correlates with the GF phenomenon. Nature Publishing Group 2016 Article PeerReviewed application/pdf en http://eprints.utm.my/72186/1/MazlanHashim2016_SatellitebasedCharacterizationofClimaticConditions.pdf Azmy, M. M. and Hashim, M. and Numata, S. and Hosaka, T. and Noor, N. S. M. and Fletcher, C. (2016) Satellite-based characterization of climatic conditions before large-scale general flowering events in Peninsular Malaysia. Scientific Reports, 6 . ISSN 2045-2322 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983775764&doi=10.1038%2fsrep32329&partnerID=40&md5=50338e0518c21012314013f0ba479417
spellingShingle G70.212-70.215 Geographic information system
Azmy, M. M.
Hashim, M.
Numata, S.
Hosaka, T.
Noor, N. S. M.
Fletcher, C.
Satellite-based characterization of climatic conditions before large-scale general flowering events in Peninsular Malaysia
title Satellite-based characterization of climatic conditions before large-scale general flowering events in Peninsular Malaysia
title_full Satellite-based characterization of climatic conditions before large-scale general flowering events in Peninsular Malaysia
title_fullStr Satellite-based characterization of climatic conditions before large-scale general flowering events in Peninsular Malaysia
title_full_unstemmed Satellite-based characterization of climatic conditions before large-scale general flowering events in Peninsular Malaysia
title_short Satellite-based characterization of climatic conditions before large-scale general flowering events in Peninsular Malaysia
title_sort satellite based characterization of climatic conditions before large scale general flowering events in peninsular malaysia
topic G70.212-70.215 Geographic information system
url http://eprints.utm.my/72186/1/MazlanHashim2016_SatellitebasedCharacterizationofClimaticConditions.pdf
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