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Indonesian Island (indonesian + island)

Distribution by Scientific Domains

Life Sciences	75%

Selected Abstracts

HABITAT FRAGMENTATION AND BIODIVERSITY: TESTING FOR THE EVOLUTIONARY EFFECTS OF REFUGIA

EVOLUTION, Issue 6 2004
Jon R. Bridle
Abstract Concordant areas of endemism among taxa have important implications both for understanding mechanisms of speciation and for framing conservation priorities. Here we discuss the need for careful testing of phylogeographic data for evidence of such concordance, with particular reference to the Indonesian island of Sulawesi. This is because there are good reasons to question whether concordance between taxa is likely to be a common pattern, and because of the serious implications of incorrectly concluding that the biodiversity of a given area can be partitioned in this way. [source]

Global City Frontiers: Singapore's Hinterland and the Contested Socio-political Geographies of Bintan, Indonesia

INTERNATIONAL JOURNAL OF URBAN AND REGIONAL RESEARCH, Issue 1 2006
TIM BUNNELL
During the 1980s, Singapore's policy-makers perceived that the continued expansion of the Singapore economy required more spaces and workers beyond the 680-square-kilometre territorial limits of the city-state. While planning to extend these limits through further land reclamation, Singapore also began to foster economic cooperation with regional neighbours, most famously in the form of a so-called Growth Triangle incorporating proximate areas of Malaysia and Indonesia. The empirical focus of this article is on the tourist enclave developed on the Indonesian island of Bintan, a 45-minute ferry ride from Singapore. This enclave embodies complex re-territorializations. We specify how, despite a decade of re-fashioning zones of Bintan into quasi-enclaves and the literal and metaphorical cultivation of a tourist haven, other claims on these transfrontier zones resurfaced in the form of resistances and struggles over the terms of access to land and resources. It is argued that the trajectory of Bintan is symptomatic of wider transformations and epitomizes new configurations of sovereignty, urbanity and ,gated globalism'. [source]

Y-chromosome and mitochondrial DNA studies on the population structure of the Christmas Island community

AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, Issue 3 2005
Cheryl A. Wise
Abstract Christmas Island is a remote Australian territory located close to the main Indonesian island of Java. Y-chromosome and mitochondrial DNA (mtDNA) markers were used to investigate the genetic structure of the population, which comprises communities of mixed ethnic origin. Analysis of 12 Y-chromosome biallelic polymorphisms revealed a high level of gene diversity and haplotype frequencies that were consistent with source populations in southern China and Southeast Asia. mtDNA hypervariable segment I (HVS-I) sequences displayed high levels of haplotype diversity and nucleotide diversity that were comparable to various Asian populations. Genetic distances revealed extremely low mtDNA differentiation among Christmas Islanders and Asian populations. This was supported by the relatively high proportion of sequence types shared among these populations. The most common mtDNA haplogroups were M* and B, followed by D and F, which are prevalent in East/Southeast Asia. Christmas Islanders of European descent were characterized by the Eurasian haplogroup R*, and a limited degree of admixture was observed. In general, analysis of the genetic data indicated population affinities to southern Chinese (in particular from the Yunnan Province) and Southeast Asia (Thailand, Malaysia, and Cambodia), which was consistent with historical records of settlement. The combined use of these different marker systems provides a useful and appropriate model for the study of contemporary populations derived from different ethnic origins. Am J Phys Anthropol, 2005. © 2005 Wiley-Liss, Inc. [source]

Recovery of Bird Species in Minimally Restored Indonesian Tin Strip Mines

RESTORATION ECOLOGY, Issue 2 2000
Howard D. Passell
Abstract Bird species richness and individual abundances were recorded in old, unrestored tin strip mine plots, in mined plots restored 1, 2, and 3 years before the study, and in adjacent, unmined, natural secondary forest plots on the 11,340-km2 Indonesian island of Bangka (2°S, 106°E). The objective was to assess the ecological recovery of unrestored and minimally restored mine plots compared with surrounding reference forest. Unrestored mines had not been mined or used for any other purpose for 14,30 years; plots in their first, second, and third year since restoration were old mines planted with Acacia mangium (Leguminosae) at a density of 400 trees/ha. Natural secondary forest plots 20 or more years since the last disturbance were immediately adjacent to both unrestored and restored plots. Bird surveys on 4-ha plots were performed during the 1995 breeding season. A comparison of data from unrestored plots of widely varying ages showed no significant differences among them for species richness, diversity (Shannon,Wiener index, H,), or individual abundance, indicating that little natural bird community recovery had occurred over time in the plots. However, increases did occur in restored sites over only 3 years for both species richness (r 2= 0.29, p = 0.04) and diversity (r 2= 0.45, p = 0.009). All values for third-year restored plots, however, were still significantly lower than corresponding values for adjacent natural secondary forest plots. The quick return of bird activity on the plots after minimal efforts at restoration supports the idea that simple, inexpensive restoration can be effective for "jump starting" degraded systems at large scales. Such a restoration strategy might be of particular value for degraded land in developing nations, where scientific, professional, and financial resources might be in short supply. Using this strategy, a small number of restoration professionals could mobilize the labor of many local people in many areas, serving to both improve ecological systems and to educate and engage local populations in restoration and conservation projects. [source]