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Kuala Selangor, Malaysia

Hattori T.,Japan Forestry and Forest Products Research Institute | Yamashita S.,Japan Forestry and Forest Products Research Institute | Lee S.-S.,Malaysian Forest Research Institute
Biodiversity and Conservation

We reviewed the ecological characteristics of wood-inhabiting fungi in Malaysia in relation to the major threats to these fungi; we also examined the forest uses that would help to conserve them. Although wood-inhabiting fungi do not show high host specificity or preference in many tropical areas, several are specific to Dipterocarpaceae trees in Malaysia and some species may preferably inhabit other minor tree species. Tree size and decomposition stage are also important determinants of which fungi are present. Among the polypores described by E. J. H. Corner, 41 and 26 species have been recorded only from Malaysian lowland rainforest and montane forest, respectively. Evidence suggests that both of these forest types in Malaysia are home to unique fungal communities. More than 30 polypore species described by Corner are known only from their type localities. These species are likely rare and may be restricted to old-growth forests. Logging decreases species richness of wood-inhabiting fungi because the number of natural treefalls is decreased in logged forests, and the decline of old-growth forests is a major threat to conservation of Malaysian fungi. However, species richness of wood-inhabiting fungi is relatively high in old secondary forests and forests undergoing reduced-impact logging. The diversity of wood-inhabiting fungi is extremely low in oil palm plantations, whereas several species inhabit rubber-tree and acacia plantations. Preservation of old-growth forest is essential for conserving rare wood-inhabiting fungi in Malaysia, but old secondary forests, reduced-impact logged forests, and matured tree plantations may have some importance for the conservation of some species. © 2012 Springer Science+Business Media B.V. Source

Sreetheran M.,Copenhagen University | Sreetheran M.,Malaysian Forest Research Institute | van den Bosch C.C.K.,Copenhagen University | van den Bosch C.C.K.,Swedish University of Agricultural Sciences
Urban Forestry and Urban Greening

Studies have pointed at the negative side of urban green spaces in terms of evoking fear of crime. However research on fear-provoking attributes suggests that there usually is no single attribute that influences fear but that rather a combination of attributes prevails. The aim of the paper is to systematically review those attributes that evoke fear of crime in urban green spaces and to highlight their complex interaction by adopting a social-ecological framework. Results include an overview of the reviewed literature with regard to authorship, journal, geographical distribution of the studies, types of urban green spaces studies, types of landscape stimulus used, applied methods, types of respondents involved and main study findings. Forty-eight studies met the authors' inclusion criteria. The majority of the studies highlighted that individual factors (such as gender and past experience) were more influential than social and physical factors in evoking fear of crime. A proposed socio-ecological framework highlights the attributes which evoke fear of crime in urban green spaces and its interactions and can help guide future research. © 2013 Elsevier GmbH. Source

Ng F.S.P.,Malaysian Forest Research Institute
Journal of Tropical Forest Science

The age of trees in tropical rainforests where there are no annual dry seasons cannot be obtained by counting annual growth rings because such rings do not develop. However, the decay of wood in the humid tropics appears to be related to time and this relationship may provide a method for estimating the age of trees that have hollow (decayed) cores. © Forest Research Institute Malaysia. Source

Nine new species of the genus Thottea, namely T. anthonysamyi, T. kamarudiniana, T. longipedunculata, T. papilionis, T. piscodora, T. reflexa, T. ruthiae and T. terengganuensis from Peninsular Malaysia (eight species) and T. praetermissa from Peninsular Malaysia and Singapore (one species) are described and illustrated. Distribution maps are provided and conservation status is assessed for the new species. Thottea dependens and T. tricornis are redefined and T. parviflora is lectotypified. Thottea is now represented by 16 species in Peninsular Malaysia and two in Singapore. A spherical-ovoid shaped perianth with an aperture at the top is observed for the first time in Thottea. The white and bicoloured perianth are described for the first time in Peninsular Malaysian Thottea. Eight out of the nine novelties fall in the IUCN 'Threatened' category, and six of them are considered as 'Critically Endangered'. © 2013 Naturalis Biodiversity Center. Source

Hamdan O.,Malaysian Forest Research Institute | Khali Aziz H.,Malaysian Forest Research Institute | Mohd Hasmadi I.,University Putra Malaysia
Remote Sensing of Environment

This study has been carried out to evaluate the relationship between Advanced Land Observing Satellite (ALOS) Phased Array L-band SAR (PALSAR) backscattering coefficients and the aboveground biomass (AGB) of a managed mangrove forest in Malaysia. Matang Mangrove Forest Reserve known as Matang Mangroves was selected as the study area. It covers about 41,000ha of mangrove forest and is the largest single mangrove ecosystem in Peninsular Malaysia. A mosaic of L-band PALSAR fine beam dual (FBD) with 25mpixel spacing data for the year 2010 was provided by the Japan Aerospace Exploration Agency's (JAXA) within the framework of the ALOS Kyoto and Carbon (K&C) Initiative. A total of 320 sampling plots that were collected in 2010 and 2011 were used in the study. The calculated plot-based AGB were correlated to the pixels/backscatter of PALSAR data. The best correlation function (i.e. from HV backscatter) was used to estimate and determine the aboveground biomass of the Matang Mangroves. The study found that the estimated AGB in Matang Mangroves ranged between 2.98 and 378.32±33.90Mgha-1 with an average of 99.40±33.90Mgha-1 and a total AGB of about 4.25 million Mg. The HV backscatter started to saturate at an AGB of 100Mgha-1 and the errors associated with the estimation occurred largely when the AGB exceeded 150Mgha-1. The study also found that the manipulation of polarisation was useful in discriminating succession levels of mangroves. © 2014 Elsevier Inc. Source

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