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Registros recuperados: 4
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Cumulative Effects of Barriers on the Movements of Forest Birds Ecology and Society
St. Clair, Colleen Cassady; University of Alberta; cstclair@ualberta.ca.
Although there is a consensus of opinion that habitat fragmentation has deleterious effects on animal populations, primarily by inhibiting dispersal among remaining patches, there have been few explicit demonstrations of the ways by which degraded habitats actually constrain individual movement. Two impediments are primarily responsible for this paucity: it is difficult to separate the effects of habitat fragmentation (configuration) from habitat loss (composition), and conventional measures of fragmented habitats are assumed to be, but probably are not, isotropic. We addressed these limitations by standardizing differences in forest cover in a clearly anisotropic configuration of habitat fragmentation by conducting a homing experiment with three species...
Tipo: Peer-Reviewed Reports Palavras-chave: Banff National Park; Golden-crowned Kinglet; Red-breasted Nuthatch; Yellow-rumped Warbler; Barriers; Connectivity; Corridor; Forest cover; Fragmentation; Habitat loss; Movement of forest birds; Roads.
Ano: 2001
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Will Forests Remain in the Face of Oil Palm Expansion? Simulating Change in Malinau, Indonesia Ecology and Society
Sandker, Marieke; Center for International Forestry Research (CIFOR); M.Sandker@cgiar.org; Suwarno, Aritta; Center for International Forestry Research (CIFOR); aritta_suwarno@yahoo.com; Campbell, Bruce M; Charles Darwin University (CDU); Center for International Forestry Research (CIFOR); Bruce.Campbell@cdu.edu.au.
The severe tensions between conservation and development are illustrated by events in Malinau Dstrict (Kalimantan, Indonesia). Conservationists decry proposed plans for logging and conversion of pristine tropical forest to oil palm (Elaeis guineensis). Although the local government is willing to declare the district a “conservation district,” at the same time, it shows interest in oil palm conversion. This article explores the impact of the potential conversion of 500 000 ha of forest to oil palm on forest cover, in-migration, and the local economy in Malinau. The simulation model was developed using STELLA® software, and relies on a combination of empirical data, data from the literature, and stakeholder perceptions....
Tipo: Peer-Reviewed Reports Palavras-chave: Decentralization; District revenue; Forest cover; Landscape dynamics; Livelihoods; Oil palm; Participatory model; Primary forest.
Ano: 2007
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Genesis of an indigenous social-ecological landscape in eastern Panama Ecology and Society
Sharma, Divya; Department of Biology, McGill University; divya.sharma2@mail.mcgill.ca; Vergara-Asenjo, Gerardo; Department of Biology, McGill University; Instituto Forestal de Chile; gevergara@gmail.com; Potvin, Catherine; Department of Biology, McGill University; Smithsonian Tropical Research Institute; catherine.potvin@mcgill.ca.
Knowledge of the interplay between ecological and social influences in the context of land-use decision-making is sparse. To help fill this gap, we conducted participatory land-cover mapping in an indigenous territory of eastern Panama to identify factors that influenced household land-use decisions. The map illustrated a mosaic of land cover dominated by pasture. Primary discourse on influences from 35 semistructured interviews with landowners, women, and youth emphasized economic concerns, such as subsistence, and social-cultural factors, such as reticence to abandon traditional agriculture. Multivariate analysis showed that timing of family settlement helped determine proportion of forest cover, and place of origin helped determine proportion of short...
Tipo: Peer-Reviewed Reports Palavras-chave: Eastern Panama; Deforestation; Forest cover; Indigenous migration; Land-cover mapping; Land-use change; Land-use decisions; Livelihood strategies; Local knowledge; Reforestation; Social-ecological landscape.
Ano: 2015
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Linking Forests and Economic Well-Being: A Four-Quadrant Approach AgEcon
Wang, Sen; DesRoches, C. Tyler; Sun, Lili; Stennes, Brad; Wilson, Bill; van Kooten, G. Cornelis.
This paper has three main objectives: (1) to investigate whether the four-quadrant approach introduced by Maini (2003) reveals a useful typology for grouping countries by GDP and forest cover per capita, (2) to determine if the framework can enhance our understanding of the relationship between forest cover and GDP per capita, and (3) to investigate why countries in the four-quadrant world occupy different quadrants, and to determine the principal factors affecting country-movement across and within the individual quadrants. The examination reveals that countries can be classified into four broad categories, and that GDP and forest cover per capita have a low but consistent level of negative association. After regressing economic, institutional, social...
Tipo: Working or Discussion Paper Palavras-chave: Economic well-being; Forest cover; Institutions; Corruption; Education; Environmental Economics and Policy; Institutional and Behavioral Economics; G00; I20; Q23.
Ano: 2007 URL: http://purl.umn.edu/37036
Registros recuperados: 4
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