Impact of landscape and corridor design on primates in a large-scale industrial tropical plantation landscape |
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Authors: | Robert Nasi Piia Koponen John G Poulsen Melanie Buitenzorgy W Rusmantoro |
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Institution: | (1) CIFOR (Centre for International Forestry Research), Bogor Barat, 16680, Indonesia;(2) CIRAD, Montpellier, France;(3) University of Wageningen, Wageningen, The Netherlands;(4) Lantana, Bogor, Indonesia |
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Abstract: | Tropical plantations are rapidly expanding as a source of industrial wood. In Indonesia, such large-scale industrial plantations
are generally made of large mono-specific blocks interspersed with natural forest remnants. The extent and biodiversity value
of these remnants vary as laws and regulations on their design and management are either unclear, without solid scientific
basis or left to the interpretation of private companies responsible for the plantations. Our study area comprises of three
Acacia mangium plantations, which have on average 18% of their total area set aside from production and conserved as natural forests. These
remnant natural forests may, if appropriately designed and managed, be used to mitigate the negative impact of plantations
on biodiversity by providing some degree of connectivity with and between remaining natural forest patches (such as the Tesso
Nilo conservation area). We sampled natural vegetation in one and primate diversity in all three plantation sector and examined
patterns of primate species richness and abundance with relation to spatial arrangement and dimensions of conservation area,
which has been set aside from plantation production. We demonstrate unambiguously the critical importance of a well-connected
network of natural forest corridors in the plantation landscape to maintain primates and discuss the potential biodiversity
value of natural forest remnants in broad-scale industrial landscapes. |
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Keywords: | Tropical plantations Landscape structure Landscape level management Biodiversity Connectivity Fragmentation Primates Acacia mangium |
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