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SPATIAL DEPENDENCY OF SEGREGATION INDICES   总被引:3,自引:0,他引:3  
A few researchers have mentioned the scale sensitivity of segregation index, D. In this paper, I discuss analytically and empirically why using large enumeration areal units usually results in low segregation measures, and using small areal units produces relatively high segregation measures. The discussion is also applicable to the multi-group variant of D. A major finding is that if people of the same ethnic groups are positively spatially auto-correlated, increasing the size of areal units of analysis may not lower D initially, because only people of the same group are added. But enlarging the areal units subsequently may include population of other ethnic groups, and therefore could lower D. However, if the boundaries of the larger enumeration units are drawn to include only population of the same group, then D will not change significantly. Both the spatial autocorrelation of ethnic group population and zonal pattern are critical factors in determining the scale sensitivity of D.  相似文献   
4.
Invasive vegetation species can lead to major changes in the geomorphology of coastal systems. Within temperate estuaries in the southern hemisphere, especially Australia and New Zealand, the cordgrass Spartina spp. has become established. These species are highly invasive, and their prolific growth leads to the development of supratidal environments in formerly intertidal and subtidal environments. Here, we quantified the impact of Spartina invasion on the geomorphology and sequestration capacity of carbon in the sediments of Anderson Inlet, Victoria, Australia. Spartina was first introduced to the area in the 1930s to aid in land reclamation and control coastal erosion associated with coastal development. We found that Spartina now dominates the intertidal areas of the Inlet and promotes accretion (18 mm/year) causing the formation of over 108 ha of supratidal islands over the past 100 years. These newly formed islands are calculated to potentially contain over 5.5 million tonnes of CO2 equivalent carbon. Future management of the inlet and other Spartina‐dominated environments within Australian presents a dilemma for resource managers; on the one hand, Spartina is highly invasive and can outcompete native tidal marshes, thereby warranting its eradication, but on the other hand it is likely more resilient to rising sea levels and has the potential for carbon sequestration. Whether or not the potential advantages outweigh the significant habitat change that is anticipated, any management strategies will likely require additional research into costs and benefits of all ecosystem services provided by Spartina including in relation to nutrient cycling, shoreline stabilisation, and biodiversity as well as in response to the longevity of carbon found within the sediments.  相似文献   
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An upper molar of a small bat, here described from an early Miocene freshwater lime-stone deposit at Riversleigh, northwestern Queensland, is the oldest record in Australia of the microchiropteran family Vespertilionidae. The new taxon is referred to the cosmopolitan genus Leuconoe, but it does not appear to be closely related to the two extant Australian species of this genus.  相似文献   
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Residential field courses are important and should be designed and delivered to maximize their value to students, staff and institutions. In this context, we use a novel approach involving analysis of the daily affective and conative reflections of students immersed in the field course experience to better understand student engagement with fieldwork. We show that students base their field course choice on a range of factors (costs and benefits) and that these choices subsequently influence student expectations and motivation to engage with fieldwork. We also show that the motivation of students to engage with fieldwork-based learning varies from person to person and from day to day. Our findings suggest that having a more nuanced understanding of the decisions students make when deciding which field course to enrol upon would enhance our ability to design attractive, accessible and useful field courses; that having an awareness of the expectations of students around field courses would enable us to better prepare them to undertake them; and that students are more motivated when they are afforded an opportunity to work independently and perceive themselves to have ownership of their learning.  相似文献   
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Book reviews     
CHINA

ERIC KIT‐WAI MA.Culture, Politics, and Television in Hong Kong. London: Routledge, 1999. 242 pp. Introduction, appendices, notes, bibliography, index. £55.00, hardcover.

LILY XIAO HONG LEE and SUE WILES. Women of the Long March: the Never Before Told Story. St. Leonards, NSW: Allen & Unwin, 1999. 308 pp. Photographs, preface, chronology, maps, appendix, notes, bibliography, index. A$24.95, paper.

MARIE‐CLAIRE BERGÈRE. Sun Yat‐sen (trans. Janet Lloyd). Stanford: Stanford University Press, 1998. xii, 480 pp. Illustrations, introduction, endnotes, bibliography, index. A$90.00, hardcover.

JAPAN, KOREA

MASARU KOHNO. Japan's Postwar Party Politics. Princeton, NJ: Princeton University Press, 1997. xiii, 172 pp. US$65.00, hardcover; US$19.95, paper.

SHARON A. MINICHIELLO (ed). Japan's Competing Modernities: issues in Culture and Democracy 1900–1930. Honolulu: University of Hawaii Press, 1998. xiii, 394 pp. Illustrations, foreword, preface, introduction, index. US$54.00, hardcover; US$25.95, paper.

SOUTH, WEST & CENTRAL ASIA

DICK VAN DER MEIJ. India and Beyond: essays in Honour of Frits Staal. New York: Columbia University Press, 1998. 696 pp. $US110.00, hardcover.

ASHISH KOTHARI, NEEMA PATHAK, R. V. ANURADHA and BANSURI TANEJA (eds). Communities and Conservation. Natural Resource Management in South and Central Asia. New Delhi: Sage, 1998. 505 pp. Rs. 495, hardcover; Rs. 325, paper.

JAMES BROW. Demons and Development: the Struggle for Community in a Sri Lankan Village. (Hegemony and Experience. Critical Studies in Anthropology and History, Series Editors Hermann Rebel and William Roseberry). Tucson: University of Arizona Press, 1996. xviii, 218 pp. Index. US$45.00, hardcover; US$19.95, paper.

REIDAR DALE. Evaluation Frameworks for Development Programmes and Projects. New Delhi: Sage Publications India, 1998. 150 pp. Index. Rs. 275, hardcover; Rs. 145, paper.

SOUTHEAST ASIA

HANS ANTLOV and SVEN CEDERROTH (eds). Leadership on Java: gentle Hints, Authoritarian Rule. Richmond, Surrey: Curzon, 1994. viii, 197 pp. £25.00, paper.

CORNELIA ANN KAMMERER and NICOLA TANNENBAUM (eds). Merit and Blessing in Mainland Southeast Asia in Comparative Perspective. Monograph 45, Yale Southeast Asian Studies, 1996. 263 pp. No price given, paper.

IAN CHALMERS and VEDI HADIZ (eds). The Politics of Economic Development in Indonesia: contending Perspectives. London and New York: Routledge, 1997. Author notes, preface, acknowledgments. xxx, 269 pp. £60.00, hardcover.  相似文献   

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ABSTRACT

The Tian Tan Buddha is the core of a tourism site on Lantau Island, Hong Kong, around which a cable car ride, the Po-Lin monastery and its museum, and the village of Ngong Ping have come to comprise an eclectic set of tourism nuclei that ‘accidentally’ became the ‘Buddhist theme park’ of Hong Kong due to the spatial juxtaposition in an isolated site of these disconnected and even dissonant components built at different times by different jurisdictions. The first objective of this article is to explore the developmental process of a religious site into a theme park of sort through a lengthy process filled with contestation and manipulations. The history-dependent and erratic nature of this process validates the notion of ‘accidental’ theme park used here. It is shown that over time, the Big Buddha went from being a Buddhism-themed leisure site to being generally perceived and promoted as essentially a theme park through a process of partial Disneyization. The second objective is to examine how the ‘theme park’ is perceived by its visitors, more precisely how they see it after their visit and what first-time visitors expect from it beforehand. The first enquiry, performed through the analysis of TripAdvisor reviews, indicates that ex-post, the visitors typically describe having experienced a visit to a theme park. The second enquiry, performed by interviewing first-time visitors about to access the site, suggests that while many first-time visitors expect to visit a theme park as well, others, mainly Western tourists, are expecting a more cultural experience. The findings of the two inquiries are compared to each other and to the image of the site promoted by the local tourism authorities. The subdued political message of the Big Buddha and the degree to which it is discerned by visitors are also discussed.  相似文献   
10.
Chinese popular music, inspired by pre-war Shanghai music known as ‘shidai qu’ (时代曲) (songs of the era) and evolving to include Canto pop and Taiwanese Mandarin songs, has always been popular among the Chinese in Malaysia. This music is featured on radio, television, karaoke, and performed by orchestras such as the Dama Chinese Orchestra (大马) to enthusiastic reception. The songs have a broad appeal that transcends time, generation, and place. Of significance is the observation that the music has become a cultural marker and musical heritage for Chinese in Malaysia and in the region. The paper looks at factors behind this development.  相似文献   
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