Conservation gap Analysis of dipterocarp hotspots in Sarawak using GIS,remote sensing and herbarium data

Dipterocarpaceae is the dominant tree family in the tropical rain forests of Southeast Asia. Borneo is the centre of diversity for the dipterocarps. Identification of hotspots is important for forest and biodiversity conservation efforts. Species Occurrence Models (SOMs) were generated for all 247 s...

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Main Authors:	P., Stephen Teo, P.K., Paul Chai, Mui-How, Phua
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2013
Online Access:	http://journalarticle.ukm.my/6465/ http://journalarticle.ukm.my/6465/ http://journalarticle.ukm.my/6465/1/05_Stephen_P..pdf

id	ukm-6465
recordtype	eprints
spelling	ukm-64652016-12-14T06:41:15Z http://journalarticle.ukm.my/6465/ Conservation gap Analysis of dipterocarp hotspots in Sarawak using GIS,remote sensing and herbarium data P., Stephen Teo P.K., Paul Chai Mui-How, Phua Dipterocarpaceae is the dominant tree family in the tropical rain forests of Southeast Asia. Borneo is the centre of diversity for the dipterocarps. Identification of hotspots is important for forest and biodiversity conservation efforts. Species Occurrence Models (SOMs) were generated for all 247 species of dipterocarps recorded in Sarawak using herbarium occurrence data and based on the best model selected. The species occurrence density map for each genus and category (endemic and non endemic) was generated by overlaying the SOMs of all species in each genus or category. The species occurrence density maps were analyzed with land cover map from Landsat 7-EMT+ images and protected forest areas for identifying hotspots for conservation in Sarawak. Overlaying the SOM maps revealed that areas in central Sarawak and the southwest region (northwest Borneo around Kuching) are the main hotspots of dipterocarp diversity in Sarawak while the coastal lowland areas in the lower Rejang and Baram River which are mainly peat swamp forest are poorer in species occurrence density. In terms of endemism, as with dipterocarp diversity, the mixed diptercarp forest of central Sarawak is also the most important hotspot. Gap analysis revealed that most protected forest areas are in southwest Sarawak (Bako, Kubah, Tanjung Datu and Gunung Gading National Parks) and in the northern part of Sarawak (Niah, Lambir Hills and Mt Mulu National Parks). This leaves the hotspot in the central part of Sarawak least protected. Protected areas only cover between 2 and 4% of the total areas for the different hotspots (75% species density) while majority of the hotspots that are still forested are outside the protected areas. Universiti Kebangsaan Malaysia 2013-09 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/6465/1/05_Stephen_P..pdf P., Stephen Teo and P.K., Paul Chai and Mui-How, Phua (2013) Conservation gap Analysis of dipterocarp hotspots in Sarawak using GIS,remote sensing and herbarium data. Sains Malaysiana, 42 (9). pp. 1237-1246. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Dipterocarpaceae is the dominant tree family in the tropical rain forests of Southeast Asia. Borneo is the centre of diversity for the dipterocarps. Identification of hotspots is important for forest and biodiversity conservation efforts. Species Occurrence Models (SOMs) were generated for all 247 species of dipterocarps recorded in Sarawak using herbarium occurrence data and based on the best model selected. The species occurrence density map for each genus and category (endemic and non endemic) was generated by overlaying the SOMs of all species in each genus or category. The species occurrence density maps were analyzed with land cover map from Landsat 7-EMT+ images and protected forest areas for identifying hotspots for conservation in Sarawak. Overlaying the SOM maps revealed that areas in central Sarawak and the southwest region (northwest Borneo around Kuching) are the main hotspots of dipterocarp diversity in Sarawak while the coastal lowland areas in the lower Rejang and Baram River which are mainly peat swamp forest are poorer in species occurrence density. In terms of endemism, as with dipterocarp diversity, the mixed diptercarp forest of central Sarawak is also the most important hotspot. Gap analysis revealed that most protected forest areas are in southwest Sarawak (Bako, Kubah, Tanjung Datu and Gunung Gading National Parks) and in the northern part of Sarawak (Niah, Lambir Hills and Mt Mulu National Parks). This leaves the hotspot in the central part of Sarawak least protected. Protected areas only cover between 2 and 4% of the total areas for the different hotspots (75% species density) while majority of the hotspots that are still forested are outside the protected areas.
format	Article
author	P., Stephen Teo P.K., Paul Chai Mui-How, Phua
spellingShingle	P., Stephen Teo P.K., Paul Chai Mui-How, Phua Conservation gap Analysis of dipterocarp hotspots in Sarawak using GIS,remote sensing and herbarium data
author_facet	P., Stephen Teo P.K., Paul Chai Mui-How, Phua
author_sort	P., Stephen Teo
title	Conservation gap Analysis of dipterocarp hotspots in Sarawak using GIS,remote sensing and herbarium data
title_short	Conservation gap Analysis of dipterocarp hotspots in Sarawak using GIS,remote sensing and herbarium data
title_full	Conservation gap Analysis of dipterocarp hotspots in Sarawak using GIS,remote sensing and herbarium data
title_fullStr	Conservation gap Analysis of dipterocarp hotspots in Sarawak using GIS,remote sensing and herbarium data
title_full_unstemmed	Conservation gap Analysis of dipterocarp hotspots in Sarawak using GIS,remote sensing and herbarium data
title_sort	conservation gap analysis of dipterocarp hotspots in sarawak using gis,remote sensing and herbarium data
publisher	Universiti Kebangsaan Malaysia
publishDate	2013
url	http://journalarticle.ukm.my/6465/ http://journalarticle.ukm.my/6465/ http://journalarticle.ukm.my/6465/1/05_Stephen_P..pdf
first_indexed	2023-09-18T19:47:00Z
last_indexed	2023-09-18T19:47:00Z
_version_	1777405967027142656

Conservation gap Analysis of dipterocarp hotspots in Sarawak using GIS,remote sensing and herbarium data

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