Where have All the Forests Gone? Deforestation in Land Below the Wind

Gunggut, Haijon; Saufi, Dg Siti Noor Saufidah Ag Mohd; Zaaba, Zuraidah; Liu, May Siaw-Mei

doi:10.1016/j.sbspro.2014.10.069

Cited by 7 publications

(6 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sabah, the second largest state in Malaysia, situated in northern Borneo Island with an estimated area of 73,620 km 2 has recently experienced tremendous forest loss. Prior to the 1980s, about 80% of Sabah was covered with mainly dipterocarp forests [5]. However, by the mid-1980s, only 60% of Sabah was covered with forest, a loss of 20% in a short time due to logging and agriculture activities.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of different habitat types on abundance and biting times of Anopheles balabacensis Baisas (Diptera: Culicidae) in Kudat district of Sabah, Malaysia

et al. 2019

View full text Add to dashboard Cite

Background We investigated the effect of five common habitat types on the diversity and abundance of Anopheles spp. and on the biting rate and time of Anopheles balabacensis (currently the only known vector for Plasmodium knowlesi in Sabah) at Paradason village, Kudat, Sabah. The habitats were forest edge, playground area, longhouse, oil palm plantation and shrub-bushes area. Sampling of Anopheles was done monthly using the human landing catch method in all habitat types for 14 months (October 2013 to December 2014, excluding June 2014). The Anopheles species were morphologically identified and subjected to PCR assay for the detection of Plasmodium parasites. Generalised linear mixed models (GLMM) were applied to test the variation in abundance and biting rates of An. balabacensis in different habitat types. Results A total of 1599 Anopheles specimens were collected in the village, of which about 90% were An. balabacensis . Anopheles balabacensis was present throughout the year and was the dominant Anopheles species in all habitat types. The shrub bushes habitat had the highest Anopheles species diversity while forest edge had the greatest number of Anopheles individuals caught. GLMM analysis indicated that An. balabacensis abundance was not affected by the type of habitats, and it was more active during the early and late night compared to predawn and dawn. PCR assay showed that 1.61% of the tested An. balabacensis were positive for malaria parasites, most of which were caught in oil palm estates and infected with one to two Plasmodium species. Conclusions The identification of infected vectors in a range of habitats, including agricultural and farming areas, illustrates the potential for humans to be exposed to P. knowlesi outside forested areas. This finding contributes to a growing body of evidence implicating environmental changes due to deforestation, expansion of agricultural and farming areas, and development of human settlements near to forest fringes in the emergence of P. knowlesi in Sabah. Electronic supplementary material The online version of this article (10.1186/s13071-019-3627-0) contains supplementary material, which is available to authorized users.

show abstract

Section: Introductionmentioning

confidence: 99%

“…However, by the mid-1980s, only 60% of Sabah was covered with forest, a loss of 20% in a short time due to logging and agriculture activities. By 1995, about 90% of the primary forests in Sabah had been lost, with the area reduced from around 2.8 to 0.3 Mha [5].…”

Section: Introductionmentioning

confidence: 99%

Effect of different habitat types on abundance and biting times of Anopheles balabacensis Baisas (Diptera: Culicidae) in Kudat district of Sabah, Malaysia

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Tropical natural forests have declined over time (Brandt, Nolte, & Agrawal, 2016;Gunggut, Saufi, Zaaba, & Liu, 2014;Keenan et al, 2015). In Indonesia, this matter was caused by unsustainable management (Tsujino, Yumoto, Kitamura, Djamaluddin, & Darnaedi, 2016), deforestation (Gaveau et al, 2016;Margono, Potapov, Turubanova, Stolle, & Hansen, 2014), occupation (Gatto, Wollni, & Qaim, 2015;Maladi, 2013), illegal logging (Linkie, Sloan, Kasia, Kiswayadi, & Azmi, 2014;Maryudi, 2016;Schmitz, 2016), forest fires (Herawati & Santoso, 2011) or other damage have resulted in fragmented forests, including those happened in production forest concessions (MoEF, 2017).…”

Section: A Site Delineation and Business Unit Developmentmentioning

confidence: 99%

Implementation of Multi-System Silviculture (Mss) to Improve Performance of Production Forest Management: A Case Study of Pt. Sarpatim, Central Kalimantan

Suryanto¹,

Susilo

Onrizal

et al. 2018

Ina.J.For.Res

View full text Add to dashboard Cite

. SARPATIM, CENTRAL KALIMANTAN. To date, performance of the management of Indonesian production forests are discouraging. The concession areas, timber production and employment have been decreasing over time. To concern on these matter and to improve management, a research was conducted for six years (2008)(2009)(2010)(2011)(2012)(2013) and resulted in recommendations to implement the Multi-System of Silviculture (MSS) systems. Two products were generated in MSS; criteria and indicator to guide the selection of appropriate silvicultural system and supersilvik, a model to develop the best business plans. This paper evaluates and strengthens the recommendations through the simulation of MSS products in PT. Sarmiento Parakantja Timber (Sarpatim), Central Kalimantan, Indonesia. Various data variables were used, such as thematic maps of forest areas, data of stand, materials, equipments, labors, finances and incomes. Data were processed in a variety of formulations which were connected to each other in model systems to produce a variety of outcomes, such as production, finance, employment and tax contributions. Results offer four options to improve PT. Sarpatim performance, one of which is the best choice. Compared to the former business model under limited silvicultural systems, MSS projected an increase in the use of land, timber production and employment by 151-753%. Implementing MSS will provide a better and healthier finance for company with an increase of NPV up to 193%; as well as for government tax revenues with an increase up to 308%. This MSS case study strongly suggests using the new theory that the management of production forests is a land and plant-based enterprises, which should put the land as the major capital and silvicultural aspects as the driving engine for production. The policy makers should be able to use these results as a reference in implementing MSS widely as part of Sustainable Forest Management (SFM) practices.

show abstract

“…Taking improvements in molecular diagnostics and surveillance into account, the increase in P. knowlesi cases in Malaysian Borneo likely represents a genuine incidence rise. Sabah is a global hotspot for deforestation, and a clear association between the rise of P. knowlesi incidence in humans and deforestation have been shown in Sabah 6 , 7 . While the mechanisms which underly this association are unknown, it has been suggested that they may be influenced by changes in macaque behaviour and densities, human behaviour and vector bionomics 8 .…”

Section: Introductionmentioning

confidence: 99%

Environmental and spatial risk factors for the larval habitats of Plasmodium knowlesi vectors in Sabah, Malaysian Borneo

Byrne

Aure

Manin

et al. 2021

Sci Rep

View full text Add to dashboard Cite

Land-use changes, such as deforestation and agriculture, can influence mosquito vector populations and malaria transmission. These land-use changes have been linked to increased incidence in human cases of the zoonotic malaria Plasmodium knowlesi in Sabah, Malaysian Borneo. This study investigates whether these associations are partially driven by fine-scale land-use changes creating more favourable aquatic breeding habitats for P. knowlesi anopheline vectors. Using aerial remote sensing data, we developed a sampling frame representative of all land use types within a major focus of P. knowlesi transmission. From 2015 to 2016 monthly longitudinal surveys of larval habitats were collected in randomly selected areas stratified by land use type. Additional remote sensing data on environmental variables, land cover and landscape configuration were assembled for the study site. Risk factor analyses were performed over multiple spatial scales to determine associations between environmental and spatial variables and anopheline larval presence. Habitat fragmentation (300 m), aspect (350 m), distance to rubber plantations (100 m) and Culex larval presence were identified as risk factors for Anopheles breeding. Additionally, models were fit to determine the presence of potential larval habitats within the areas surveyed and used to generate a time-series of monthly predictive maps. These results indicate that land-use change and topography influence the suitability of larval habitats, and may partially explain the link between P. knowlesi incidence and deforestation. The predictive maps, and identification of the spatial scales at which risk factors are most influential may aid spatio-temporally targeted vector control interventions.

show abstract

Where have All the Forests Gone? Deforestation in Land Below the Wind

Cited by 7 publications

References 3 publications

Effect of different habitat types on abundance and biting times of Anopheles balabacensis Baisas (Diptera: Culicidae) in Kudat district of Sabah, Malaysia

Effect of different habitat types on abundance and biting times of Anopheles balabacensis Baisas (Diptera: Culicidae) in Kudat district of Sabah, Malaysia

Implementation of Multi-System Silviculture (Mss) to Improve Performance of Production Forest Management: A Case Study of Pt. Sarpatim, Central Kalimantan

Environmental and spatial risk factors for the larval habitats of Plasmodium knowlesi vectors in Sabah, Malaysian Borneo

Contact Info

Product

Resources

About