Gopalasamy Reuben Clements

Gopalasamy Reuben Clements
Sunway University · Department of Biological Sciences

PhD (Conservation Science)

About

155
Publications
80,363
Reads
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Introduction
I have over 10 years of research experience on invertebrates and vertebrates from forest, freshwater, limestone karst and peat swamp ecosystems in the Malay Archipelago. My goal as a conservation scientist is to deliver tangible conservation outputs on the ground for the benefit of threatened species, particularly in Peninsular Malaysia. I have a keen research interest on M&Ms (mammals and molluscs), especially on aspects related to their behaviour, biogeography, ecology and taxonomy.
Additional affiliations
May 2016 - present
Sunway University
Position
  • Professor (Associate)
May 2014 - April 2016
Universiti Malaysia Terengganu
Position
  • Professor (Associate)
January 2014 - December 2015
James Cook University
Position
  • PostDoc Position
Education
February 2010 - August 2013
James Cook University Brisbane
Field of study
  • Conservation Science
August 2004 - July 2007
August 2000 - July 2004

Publications

Publications (155)
Article
Habitat destruction and overhunting are two major drivers of mammal population declines and extinctions in tropical forests. The construction of roads can be a catalyst for these two threats. In Southeast Asia, the impacts of roads on mammals have not been well-documented at a regional scale. Before evidence-based conservation strategies can be dev...
Article
Full-text available
The overexploitation of the world's biomes for natural products calls for the prioritization of biologically important ecosystems for conservation. Here we show that limestone karsts are “arks” of biodiversity and often contain high levels of endemism. Humans have exploited karsts for a variety of products and services, but unsustainable practices...
Article
The International Union for Conservation of Nature (IUCN) Red List is arguably the most popular measure of relative species threat, but its threat categories can be ambiguous (eg "Endangered" versus "Vulnerable") and subjective, have weak quantification, and do not convey the threat status of species in relation to a minimum viable population targe...
Article
Full-text available
The manner in which a gastropod shell coils has long intrigued laypersons and scientists alike. In evolutionary biology, gastropod shells are among the best-studied palaeontological and neontological objects. A gastropod shell generally exhibits logarithmic spiral growth, right-handedness and coils tightly around a single axis. Atypical shell-coili...
Book
Full-text available
This is Part I of the final report on the Conservation of Limestone Ecosystems of Malaysia project funded by the National Conservation Trust Fund for Natural Resources under the Ministry of Energy and Natural Resources, Malaysia. The Malaysian government recognises limestone ecosystems as vulnerable ecosystems that warrant urgent conservation atte...
Book
Full-text available
This is Part IV of the final report on the Conservation of Limestone Ecosystems of Malaysia project funded by the National Conservation Trust Fund for Natural Resources under the Ministry of Energy and Natural Resources, Malaysia. The Malaysian government recognises limestone ecosystems as vulnerable ecosystems that warrant urgent conservation att...
Book
Full-text available
This is Part VII of the final report on the Conservation of Limestone Ecosystems of Malaysia project funded by the National Conservation Trust Fund for Natural Resources under the Ministry of Energy and Natural Resources, Malaysia. The Malaysian government recognises limestone ecosystems as vulnerable ecosystems that warrant urgent conservation at...
Book
Full-text available
This is Part II of the final report on the Conservation of Limestone Ecosystems of Malaysia project funded by the National Conservation Trust Fund for Natural Resources under the Ministry of Energy and Natural Resources, Malaysia. The Malaysian government recognises limestone ecosystems as vulnerable ecosystems that warrant urgent conservation att...
Book
Full-text available
This is Part III of the final report on the Conservation of Limestone Ecosystems of Malaysia project funded by the National Conservation Trust Fund for Natural Resources under the Ministry of Energy and Natural Resources, Malaysia. The Malaysian government recognises limestone ecosystems as vulnerable ecosystems that warrant urgent conservation at...
Book
Full-text available
This is Part V of the final report on the Conservation of Limestone Ecosystems of Malaysia project funded by the National Conservation Trust Fund for Natural Resources under the Ministry of Energy and Natural Resources, Malaysia. The Malaysian government recognises limestone ecosystems as vulnerable ecosystems that warrant urgent conservation atte...
Book
Full-text available
This is Part VI of the final report on the Conservation of Limestone Ecosystems of Malaysia project funded by the National Conservation Trust Fund for Natural Resources under the Ministry of Energy and Natural Resources, Malaysia. The Malaysian government recognises limestone ecosystems as vulnerable ecosystems that warrant urgent conservation att...
Article
Full-text available
Clements GR, Rostro-García S, Kamler JF, Liang SH, Hashim AKBA. 2021. Conservation status of large mammals in protected and logged forests of the greater Taman Negara Landscape, Peninsular Malaysia. Biodiversitas 22: 272-277. Peninsular Malaysia contains a large community of IUCN Threatened mammal species, although recent records in some protected...
Article
Full-text available
Rates of biodiversity loss in Southeast Asia are among the highest in the world, and the Indo-Burma and South-Central China Biodiversity Hotspots rank among the world’s most threatened. Developing robust multi-species conservation models is critical for stemming biodiversity loss both here and globally. We used a large and geographically extensive...
Article
Full-text available
Raptors are one of the known predators of flying foxes (Pteropus spp.), but this predator-prey relationship is poorly understood. Here, we report an opportunistic observation of a pair of white-bellied sea-eagles (Haliaeetus leucogaster) employing an undocumented predation technique on an island flying fox (Pteropus hypomelanus) individual from Tio...
Technical Report
Full-text available
This Conservation Roadmap was produced by Rimba’s flying fox research and conservation initiative, Project Pteropus, to provide preliminary guidelines detailing the necessary actions for the effective conservation and recovery of Peninsular Malaysia’s flying fox (Pteropus spp.) populations. It is adapted from the National Recovery Plan for the Spec...
Article
Full-text available
Aim Deforestation is rapidly altering Southeast Asian landscapes, resulting in some of the highest rates of habitat loss worldwide. Among the many species facing declines in this region, clouded leopards rank notably for their ambassadorial potential and capacity to act as powerful levers for broader forest conservation programmes. Thus, identifyin...
Article
Full-text available
The indigenous people of Peninsular Malaysia, the Orang Asli, remain a largely marginalized and impoverished minority group to this day. One could attribute this to the legacy effects of a policy instituted by the British during its administration in Malaya. The purpose of this study is to determine whether the fundamental needs of the Orang Asli a...
Conference Paper
Full-text available
In a world of limited resources and so many species and habitats in need of protection, informed prioritization is essential. However, we cannot prioritize effectively if historical and current information regarding a particular habitat or species remains scattered. Several good platforms have been created to help users find, use and create biodive...
Conference Paper
Full-text available
Only two species of flying fox (Pteropus spp.) are found in peninsular Malaysia: P. hypomelanus and P. vampyrus. Both are in severe decline, with hunting pressure and habitat destruction thought to be the main drivers. Both species are accordingly classified as ‘Endangered’ on the Red List of Mammals for Peninsular Malaysia. In order to formulate a...
Conference Paper
Full-text available
Limestone karsts have high levels of species endemism and are considered a priority ecosystem for conservation in Malaysia’s National Policy on Biodiversity (NPBD). However, limestone biodiversity in Malaysia is threatened by quarrying and deforestation. Limestone conservation planning is further challenged by the paucity of baseline biogeophysical...
Article
Full-text available
Southeast (SE) Asia holds high regional biodiversity and endemism levels but is also one of the world's most threatened regions. Local, regional and global threats could have severe consequences for the future survival of many species and the provision of ecosystem services. In the face of myriad pressing environmental problems, we carried out a r...
Article
Full-text available
While the conservation role of remaining natural habitats in anthropogenic landscapes is clear, the degree to which agricultural matrices impose limitations to animal use is not well understood, but vital to assess species’ resilience to land use change. Using an occupancy framework, we evaluated how oil palm plantations affect the occurrence and h...
Article
Full-text available
One of tropical Asia’s most poorly known pheasants, the spectacular Crested Argus Rheinardia ocellata, is known to occur in two disjunct populations—in Vietnam and Laos (nominate subspecies ocellata), and the east-central part of Peninsular Malaysia (subspecies nigrescens). The little-studied Malaysian population, which is almost entirely restricte...
Conference Paper
Full-text available
The future of endemic limestone karst biodiversity in Malaysia is jeopardised by human activities such as quarrying and deforestation. Nowhere is this situation more marked than in central Perak, Peninsular Malaysia, where almost 60% of Malaysia’s limestone quarries are situated. Until recently, scientists found it difficult to engage with the key...
Article
Full-text available
Carbon emissions from drained peatlands converted to agriculture in Southeast Asia (i.e. Peninsular Malaysia, Sumatra and Borneo) are globally significant and increasing. Here, we map the growth of Southeast Asian peatland agriculture and estimate CO2 emissions due to peat drainage in relation to official land‐use plans with a focus on the Reducing...
Article
Full-text available
The rapid expansion of oil palm cultivation in the Neotropics has generated great debate around possible biodiversity impacts. Colombia, for example, is the largest producer of oil palm in the Americas, but the effects of oil palm cultivation on native fauna are poorly understood. Here, we compared how richness, abundance and composition of terrest...
Data
Terrestrial mammal species detected by camera trapping surveys (Aug. 2014 ‒ Dec. 2015) in oil palm plantations and riparian forests in Llanos, Colombia. (DOCX)
Data
Multispecies generalized linear models examining the relationship between the abundance of medium and large terrestrial mammal species and selected landscape covariates in the Llanos region, Colombia. (DOCX)
Data
Model selection output comparing all possible combinations for the effect of variables on mammalian species richness at the landscape level. (DOCX)
Data
Model selection output comparing all possible combinations for the effect of variables on mammalian species richness within oil palm plantation level. (DOCX)
Data
Model selection output comparing all possible combinations for the effect of variables on mammalian species richness within riparian forest level. (DOCX)
Data
Images of the study area in the Llanos region of Colombia (Meta Department). a) Aerial photographs (August 2014) of the landscape highlighting riparian forest and oil palm plantations structure. b) Differences in management schemes of understory vegetation in oil palm plantations in Llanos, Colombia. Photo credit: L.E.Pardo. (PDF)
Data
The relationship between mammal species abundance and selected landscape variables in the Llanos region Colombia. Coefficients are from the saturated model using the multispecies generalized linear modelling prior to shrinkage with Lasso penalty (R package mvabund). SE is the standard error of the coefficient. For scientific names and details of th...
Article
Full-text available
Mammalian carnivores play a vital role in ecosystem functioning. However, they are prone to extinction because of low population densities and growth rates, and high levels of persecution or exploitation. In tropical biodiversity hotspots such as Peninsular Malaysia, rapid conversion of natural habitats threatens the persistence of this vulnerable...
Data
Records of Carnivora by species, locations, and year. (XLSX)
Data
Distribution of vulnerable species in Peninsular Malaysia. Solid icons represent recent (1991–2014) records and unfilled icons represent older (1948–1990) records. Boundary layer: U.S. State Department, Humanitarian Information Unit (modified from Global Large Scale International Boundary Polygons). Inset map: U.S. Central Intelligence Agency (The...
Data
Model selection results to identify landscape variables associated with spatial clustering of carnivore records based on weighted ranking of IUCN red list categories. (PDF)
Data
Search terms and sources for carnivore records and habitats in Peninsular Malaysia. (PDF)
Data
Geo-referenced TIFF files for spatial data layers used in landscape analysis. (ZIP)
Data
Recent (1991–2014) and older (1948–1990) records of species within the family Viverridae in Peninsular Malaysia. Boundary layer: U.S. State Department, Humanitarian Information Unit (modified from Global Large Scale International Boundary Polygons). Inset map: U.S. Central Intelligence Agency (The World Factbook). (DOCX)
Data
Carnivora species reported in Peninsular Malaysia and associated habitats, 1948–2014. (PDF)
Data
Recent (1991–2014) and older (1948–1990) records of species within the families Prionodontidae (banded linsang), Ursidae (sun bear), and Canidae (dhole) in Peninsular Malaysia. Boundary layer: U.S. State Department, Humanitarian Information Unit (modified from Global Large Scale International Boundary Polygons). Inset map: U.S. Central Intelligence...
Data
Distribution of endangered species in Peninsular Malaysia. Solid icons represent recent (1991–2014) records and unfilled icons represent older (1948–1990) records. Boundary layer: U.S. State Department, Humanitarian Information Unit (modified from Global Large Scale International Boundary Polygons). Inset map: U.S. Central Intelligence Agency (The...
Data
Distribution of near-threatened species in Peninsular Malaysia. Solid icons represent recent (1991–2014) records and unfilled icons represent older (1948–1990) records. Boundary layer: U.S. State Department, Humanitarian Information Unit (modified from Global Large Scale International Boundary Polygons). Inset map: U.S. Central Intelligence Agency...
Data
Recent (1991–2014) and older (1948–1990) records within the family Felidae in Peninsular Malaysia. Boundary layer: U.S. State Department, Humanitarian Information Unit (modified from Global Large Scale International Boundary Polygons). Inset map: U.S. Central Intelligence Agency (The World Factbook). (DOCX)
Data
Recent (1991–2014) and older (1948–1990) records of species within the families Mustelidae and Herpestidae in Peninsular Malaysia. Boundary layer: U.S. State Department, Humanitarian Information Unit (modified from Global Large Scale International Boundary Polygons). Inset map: U.S. Central Intelligence Agency (The World Factbook). (DOCX)
Conference Paper
Full-text available
Land snails are often neglected in discussions about Peninsular Malaysia’s biodiversity. Yet, they are an integral part of tropical ecosystems and biodiversity in Peninsular Malaysia. Here, we present an overview of land snail diversity and endemism patterns in Peninsular Malaysia. We highlight our recent research findings on land snail diversity a...
Poster
Full-text available
Land snails are often neglected in discussions about Peninsular Malaysia’s biodiversity. Yet, they are an integral part of tropical ecosystems and biodiversity in Peninsular Malaysia. Here, we present an overview of land snail diversity and endemism patterns in Peninsular Malaysia. We highlight our recent research findings on land snail diversity a...
Data
Video S1: Island flying fox (Pteropus hypomelanus) feeding on durian nectar.
Data
Video S4: Aggressive feeding interactions between two P. hypomelanus individuals.
Data
Video S5: Territorial wing‐clapping behaviour by P. hypomelanus in response to E spelaea.
Data
Video S2: Cave nectar bats (Eonycteris spelaea) feeding on durian nectar.
Data
Video S3: P. hypomelanus defending durian flowers from E. spelaea.
Article
Full-text available
Fruit bats provide valuable pollination services to humans through a unique coevolutionary relationship with chiropterophilous plants. However, chiropterophily in the Old World and the pollination roles of large bats, such as flying foxes (Pteropus spp., Acerodon spp., Desmalopex spp.), are still poorly understood and require further elucidation. E...
Conference Paper
Full-text available
Limestone hills in Southeast Asia are gaining global conservation attention due to their high levels of species endemism (including land snails) and the threats they face from habitat loss and degradation. In central Perak, Peninsular Malaysia, limestone hills face anthropogenic threats such as quarrying, deforestation, fires and invasive species....
Article
Full-text available
Limestone hills are now gaining global conservation attention as hotspots for short-range endemic species. Levels of land snail endemism can be high at limestone hills, especially at hill clusters that are geographically isolated. In the State of Perak, Peninsular Malaysia, limestone hills have been opportunistically surveyed for land snails in the...
Data
Sample completeness curve for all the seven limestone hills sampled in our study.
Data
Location of sampling plots for each of the seven hills sampled in our study.
Data
Data matrix for absence/presence of 122 land snail species at 12 limestone hills.
Article
Full-text available
Camera traps set to monitor target species generate large amounts of bycatch data of non-target species, which are secondary to the study’s objectives. Bycatch data pooled from multiple studies can answer additional questions that were not the objective of the primary studies. Variation in field and data management techniques creates logistical and...
Article
Full-text available
As tropical landscapes become increasingly human-dominated, conflicts between people and wildlife threaten ecological processes. Old World fruit bats such as flying foxes are especially susceptible to extinction risk because there is low interest in their conservation, particularly when they are considered pests. In order to arrest fruit bat declin...
Article
Full-text available
As tropical landscapes become increasingly human-dominated, conflicts between people and wildlife threaten ecological processes. Old World fruit bats such as flying foxes are especially susceptible to extinction risk because there is low interest in their conservation, particularly when they are considered pests. In order to arrest fruit bat declin...
Article
Full-text available
There is an urgent need to identify and understand the ecosystem services provided by threatened animal species such as flying foxes. The first step towards this is to obtain comprehensive data on their diet. However, the volant and nocturnal nature of flying foxes presents a challenging situation, and conventional microhistological approaches to s...
Data
Sequence alignment of partial rbcL genes for plants collected from Tioman Island Residues that are divergent across all sequences are highlighted in green (>90% similarity) and yellow (<90% similarity).