a b s t r a c tThe expansion of industrial oil palm cultivation threatens tropical biodiversity globally, especially in developing countries. Driven by plans to generate economic revenue, large-scale plantations are emerging in Southeast Asia, Africa and Brazilian Amazon. However, the ecological impacts of the sector are poorly studied with respect to oil palm management system, and recommended conservation measures are based on limited data. We studied avifauna in oil palm landscapes in Peninsular Malaysia under different management systems (large plantation estates versus smallholdings) and age classes (uniform age versus mixed-age stands). We sampled 41 large plantation estates and 14 smallholdings, as well as 20 sites in an extensively logged peat swamp forest, the type of natural forest prior to conversion to oil palms. Compared with logged peat swamp forest, our results showed that forest conversion to oil palm cultivation may have eliminated 48-60% of bird species. We also found: (i) plantation estates and smallholdings supported similar bird assemblages but the latter supported significantly more species (P = 0.007); and (ii) despite reduced species richness in oil palm landscapes, we found high abundance of some individual bird species in specific types of stands including some forest, migratory, and wetland species. Conversion of natural forest to oil palm landscapes should not occur in the future through clearing of primary or secondary native forests. To complement conventional conservation approaches (e.g. the establishment of protected areas) in palm oil-producing countries, existing plantation estates and smallholdings should be managed in ways to promote improved conservation outcomes, although oil palm landscapes maintained a fraction of the original forest biodiversity. Managing habitat heterogeneity at both a local and a landscape-level is highly recommended in oil palm landscapes to maintain and/or enhance avian biodiversity.
Purpose -The aim of this paper is to determine the factors that most likely influence non-Muslims' understanding of Halal principles in a country where almost 60 percent of the population is Muslim. Design/methodology/approach -Cross-sectional data were collected through a survey of 800 non-Muslims in the Klang Valley, via structured questionnaires, to gather information on their understanding of Halal principles and food products. The logit model was applied to determine the extent to which socio environment factors influenced the respondents' understanding and familiarities with Halal principles and Halal food products. Findings -The results of this study suggest that non-Muslim consumers are aware of the existence of Halal food in Malaysia. In general, socio-environmental factors such as mixing with Muslims socially and the presence of advertised Halal food significantly influence non-Muslims' understanding of Halal principles. The findings also suggest that non-Muslims understand that Halal principles are also concerned about food safety issues and environmentally friendly ways of doing things.Research limitations/implications -The research used a quantitative method to analyse 800 non-Muslim respondents in the Klang Valley only. Practical implications -The practical implications extend to food policy decision makers and food marketers who might pursue strategies in their distribution and communication efforts which target the growing Halal food market segment among non-Muslims. Dissemination of information plays an important role in making non-Muslims improve their understanding of Halal principles. Originality/value -This study is one of the first to investigate the level of understanding of Halal principles among non-Muslims in Malaysia.
Functional diversity, an important element of avian biodiversity, can be examined by quantifying foraging guild composition. Understanding the ecological processes that underpin functional diversity of birds in oil palm Elaeis guineensis landscapes is important because different foraging guilds are likely to be influenced in different ways by land use practices. We surveyed birds at 55 sites within oil palm landscapes and at 20 sites within logged peat swamp forest, recording 208 species belonging to 19 foraging guilds. Oil palm landscapes supported a lower abundance of insectivorous, granivorous and omnivorous birds than did logged peat swamp forest despite the latter being severely degraded due to intensive timber extraction. However, abundances of other groups of foraging birds, such as raptors and wetland taxa, were higher in oil palm landscapes than logged peat swamp forest. Frugivorous species were more abundant in smallholdings than plantation estates, probably because of the presence of native trees. Foraging guild diversity was explained by stand‐level attributes such as stand age, vegetation cover, epiphyte persistence and canopy cover. However, each foraging guild exhibited unique responses to different oil palm management regimes and stand‐level attributes. Only arboreal omnivores and terrestrial frugivores were affected by the proximity of nearby natural forest. This diversity of responses implies that the occurrence of particular avian foraging guilds may not be a suitable ecological indicator of best‐practice palm oil production. Our study also suggests that multiple conservation measures will be needed in oil palm landscapes irrespective of management regimes, including: (1) the maintenance of ground layer vegetation cover; (2) the pruning of oil palm canopy to permit light penetration to the ground layer; (3) re‐vegetation of parts of oil palm landscapes with native trees; and (4) retention of natural and/or secondary forest patches within the boundaries of plantations.
Global oil palm expansion has caused substantial ecological damage to tropical biodiversity. We quantified wild mammal richness in large oil palm plantation estates and semi-traditional oil palm smallholdings in Peninsular Malaysia. We sampled 41 plantation estates and 14 smallholdings, and used line-transect surveys coupled with semi-structured interviews to develop a database of the native mammals found in oil palm landscapes. Semi-structured interviews revealed a total of 32 mammal species, including 13 IUCN Red Listed taxa of high conservation value. Our results showed that human activity and the size of patches of remnant rainforest were important factors influencing the richness of mammal species in oil palm landscapes. More carnivorous and herbivorous species were reported in smallholdings than plantation estates, most probably as a response to greater habitat heterogeneity in smallholdings. All species, irrespective of conservation status, were more likely to be recorded in oil palm plantation estates and smallholdings that supported large areas of native forest. Our findings suggest that biodiversity conservation in oil palm landscapes will require a variety of conservation approaches. Minimizing poaching, reducing disturbance from human activity, and protecting existing forest patches appear particularly important. Strategies to promote the persistence of both high and low conservation value species should be adopted as part of a strengthened certification scheme for oil palm production.
Purpose The concept of functional foods is not new to the Malaysian people. Functional foods as traditional medicine have made tremendous contributions over the past couple of centuries. The growth in the economy, coupled with a strong desire among the Malaysian consumers to maintain a healthy lifestyle has made functional foods an alternative medicine among the populace. Although the consumption of functional foods is increasing in Malaysia, relatively little is known about the factors which affect consumer purchase intention toward natural functional foods. The purpose of this paper is to determine Malaysian consumer intention to purchase natural functional foods. Design/methodology/approach A survey was conducted in the country where 2,004 household were interviewed using structured questionnaires. The theory of reasoned action (TRA) and health belief model were adopted and modified in this study. Descriptive statistics and structural equation modeling were used to analyze the collected data. Findings The results have shown that the data set was normal, valid and reliable. Attitude has a partial mediating effect on perceived barriers, perceived susceptibility and perceived benefits which influence consumer intention to purchase natural functional foods. Nevertheless attitude had no mediation effect on subjective norms for consumers to form their intention to purchase natural functional foods. In other word, subjective norms had a direct influence on consumer intention to purchase natural functional foods. Research limitations/implications The main concern of this paper is about the factors which affect consumer purchase intention toward natural functional foods. However the results from this paper are limited in terms of determining consumer purchasing behavior for natural functional foods. Originality/value The paper expands on the TRA and health belief model to examine the factors which influence Malaysian consumer purchase intention toward natural functional foods.
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