共查询到10条相似文献,搜索用时 15 毫秒
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Anita T. Morzillo Angela G. Mertig Jeffrey W. Hollister Nathan Garner Jianguo Liu 《Environmental management》2010,45(6):1299-1311
There is global interest in recovering locally extirpated carnivore species. Successful efforts to recover Louisiana black
bear in Louisiana have prompted interest in recovery throughout the species’ historical range. We evaluated support for three
potential black bear recovery strategies prior to public release of a black bear conservation and management plan for eastern
Texas, United States. Data were collected from 1,006 residents living in proximity to potential recovery locations, particularly
Big Thicket National Preserve. In addition to traditional logistic regression analysis, we used conditional probability analysis
to statistically and visually evaluate probabilities of public support for potential black bear recovery strategies based
on socioeconomic characteristics. Allowing black bears to repopulate the region on their own (i.e., without active reintroduction)
was the recovery strategy with the greatest probability of acceptance. Recovery strategy acceptance was influenced by many
socioeconomic factors. Older and long-time local residents were most likely to want to exclude black bears from the area.
Concern about the problems that black bears may cause was the only variable significantly related to support or non-support
across all strategies. Lack of personal knowledge about black bears was the most frequent reason for uncertainty about preferred
strategy. In order to reduce local uncertainty about possible recovery strategies, we suggest that wildlife managers focus
outreach efforts on providing local residents with general information about black bears, as well as information pertinent
to minimizing the potential for human–black bear conflict. 相似文献
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Haruka Ohashi Masato Yoshikawa Keiichi Oono Norihisa Tanaka Yoriko Hatase Yuhide Murakami 《Environmental management》2014,54(3):631-640
Irreversible shifts in ecosystems caused by large herbivores are becoming widespread around the world. We analyzed data derived from the 2009–2010 Sika Deer Impact Survey, which assessed the geographical distribution of deer impacts on vegetation through a questionnaire, on a scale of 5-km grid-cells. Our aim was to identify areas facing irreversible ecosystem shifts caused by deer overpopulation and in need of management prioritization. Our results demonstrated that the areas with heavy impacts on vegetation were widely distributed across Japan from north to south and from the coastal to the alpine areas. Grid-cells with heavy impacts are especially expanding in the southwestern part of the Pacific side of Japan. The intensity of deer impacts was explained by four factors: (1) the number of 5-km grid-cells with sika deer in neighboring 5 km-grid-cells in 1978 and 2003, (2) the year sika deer were first recorded in a grid-cell, (3) the number of months in which maximum snow depth exceeded 50 cm, and (4) the proportion of urban areas in a particular grid-cell. Based on our model, areas with long-persistent deer populations, short snow periods, and fewer urban areas were predicted to be the most vulnerable to deer impact. Although many areas matching these criteria already have heavy deer impact, there are some areas that remain only slightly impacted. These areas may need to be designated as having high management priority because of the possibility of a rapid intensification of deer impact. 相似文献
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Gordon Mcgranahan Joseph Leitman Charles Surjadi 《Journal of Environmental Planning and Management》1998,41(4):505-518
Understanding neighbourhood conditions can play an important role in urban environmental management, especially when environmental services are lacking and new approachesare being debated. This paper describes and evaluates three research methods for assessing some of the environmentalproblems facing low income households and communities: (1) broad spectrum household surveys; (2) participatory rapid assessment; and (3) contingent valuation. As part of the study upon which this paper is based, the techniques were applied on a small scale in Jakarta. The paper finds that each technique can provide important and often complementaryinsights. The broad spectrum survey is particularly suitable to broad based planning, participatory appraisal to NGO initiatives and contingent valuation to utility pricing decisions. 相似文献
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Forest policymakers, public lands managers, and scientists in the Pacific Northwest (USA) seek ways to evaluate the landscape-level
effects of policies and management through the multidisciplinary development and application of spatially explicit methods
and models. The Interagency Mapping and Analysis Project (IMAP) is an ongoing effort to generate landscape-wide vegetation
data and models to evaluate the integrated effects of disturbances and management activities on natural resource conditions
in Oregon and Washington (USA). In this initial analysis, we characterized the spatial distribution of forest and range land
development in a four-county pilot study region in central Oregon. The empirical model describes the spatial distribution
of buildings and new building construction as a function of population growth, existing development, topography, land-use
zoning, and other factors. We used the model to create geographic information system maps of likely future development based
on human population projections to inform complementary landscape analyses underway involving vegetation, habitat, and wildfire
interactions. In an example application, we use the model and resulting maps to show the potential impacts of future forest
and range land development on mule deer (Odocoileus hemionus) winter range. Results indicate significant development encroachment and habitat loss already in 2000 with development located
along key migration routes and increasing through the projection period to 2040. The example application illustrates a simple
way for policymakers and public lands managers to combine existing data and preliminary model outputs to begin to consider
the potential effects of development on future landscape conditions. 相似文献
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The present study aims to identify the potential habitat for swamp deer (Cervus duvauceli duvauceli Cuvier) in Jhilmil Jheel Conservation Reserve in the Uttarakhand province of India using multi-criteria analysis. The study
area represents one of the last remnant habitats of the flagship species, the swamp deer in Uttarakhand, which is considered
as vulnerable. The study showed that only 6.08% of the study area (225 km2) was highly suitable to suitable for the swamp deer. An area of 135.52 km2 (60.23%) turned out to be moderately suitable. Within the officially designated Conservation Reserve (area 37.84 km2), 10.91% (4.13 km2) area was found highly suitable to suitable, while 74.19% (28.07 km2) happens to be moderately suitable. Only 14 km2 area, which was found as suitable habitat for swamp deer falls short of the space required by a population of 134 animals.
The problem could be mitigated if the agricultural land (2.47 km2) adjacent to the Jhilmil Jheel is brought under the Reserve management. This would provide additional area to meet the fodder
requirement. The study brings out a particularly grim situation with limited options for conservation and management of the
swamp deer in the Indo-Gangetic plains. It also emphasizes the role of geospatial techniques in quick appraisal of habitat
attributes and identification of potential sites for protected areas. 相似文献