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1.
The Hponkanrazi Wildlife Sanctuary, North Myanmar and three contiguous protected areas, comprise some of the largest expanses
of natural forest remaining in the region. Demand for wildlife products has resulted in unsustainable exploitation of commercially
valuable species resulting in local extirpation of vulnerable species. Camera trap, track and sign, and questionnaire-based
surveys were used to examine (a) wildlife species targeted by hunters, (b) the importance of wild meat for household consumption,
and (c) the significance of hunting as a livelihood activity for resident villages. Certain commercially valuable species
highly preferred by hunters were either completely absent from hunt records (tiger, musk deer and otter) or infrequently obtained
during actual hunts (bear, pangolin). Species obtained by hunters were commonly occurring species such as muntjacs with low
commercial value and not highly preferred by hunters. Fifty eight percent of respondents (n = 84) indicated trade, 27% listed subsistence use and 14% listed human-wildlife conflict as the main reason for hunting (n = 84). Average amount of wild meat consumed per month is not significantly higher during the hunting season compared to the
planting season (paired t-test, P > 0.05). Throughout the year, the average amount of fish consumed per month was higher than livestock or wild meat (Friedman
test, P < 0.0001). Hunting is driven largely by trade and wild meat, while not a critical source of food for a large number of families
could potentially be an important, indirect source of access to food for hunting families. Findings and trends from this study
are potentially useful in helping design effective conservation strategies to address globally prevalent problems of declining
wildlife populations and dependent human communities. The study provides recommendations to reduce illegal hunting and protect
vulnerable species by strengthening park management through enforcement, increasing the opportunity costs of poaching, establishing
no-take zones and research to determine the economic significance of hunting for livelihoods. 相似文献
2.
Lorna J Philip Douglas C MacMillan 《Journal of Environmental Planning and Management》2005,48(2):257-274
Public preferences for conservation and environmental management may be identified in willingness to pay (WTP) studies. Normally part of a contingent valuation exercise, WTP studies elicit monetary estimates of non-market economic goods. This paper describes a new approach to WTP, the CV Market Stall, a technique that adds a discursive, qualitative dimension to contingent valuation. It is suggested that the CV Market Stall technique is a good method for exploring attitudes and responses to environmental project proposals. The flexible format, with an emphasis upon information provision, discussion and learning would also allow contingent valuation to be extended to much more complex and uncertain environmental issues. 相似文献
3.
When local resource users detect, understand, and respond to environmental change they can more effectively manage environmental
resources. This article assesses these abilities among artisanal fishers in Roviana Lagoon, Solomon Islands. In a comparison
of two villages, it documents local resource users’ abilities to monitor long-term ecological change occurring to seagrass
meadows near their communities, their understandings of the drivers of change, and their conceptualizations of seagrass ecology.
Local observations of ecological change are compared with historical aerial photography and IKONOS satellite images that show
56 years of actual changes in seagrass meadows from 1947 to 2003. Results suggest that villagers detect long-term changes
in the spatial cover of rapidly expanding seagrass meadows. However, for seagrass meadows that showed no long-term expansion
or contraction in spatial cover over one-third of respondents incorrectly assumed changes had occurred. Examples from a community-based
management initiative designed around indigenous ecological knowledge and customary sea tenure governance show how local observations
of ecological change shape marine resource use and practices which, in turn, can increase the management adaptability of indigenous
or hybrid governance systems. 相似文献
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6.
Bhatnagar YV Wangchuk R Prins HH Van Wieren SE Mishra C 《Environmental management》2006,38(6):934-941
An emerging conflict with Trans-Himalayan pastoral communities in Ladakh’s Changthang Plateau threatens the conservation prospects
of the kiang (Equus kiang) in India. It is locally believed that Changthang’s rangelands are overstocked with kiang, resulting in forage competition
with livestock. Here, we provide a review and preliminary data on the causes of this conflict. Erosion of people’s tolerance
of the kiang can be attributed to factors such as the loss of traditional pastures during an Indo-Chinese war fought in 1962,
immigration of refugees from Tibet, doubling of the livestock population in about 20 years, and increasing commercialization
of cashmere (pashmina) production. The perception of kiang overstocking appears misplaced, because our range-wide density estimate of 0.24 kiang
km−2 (± 0.44, 95% CL) is comparable to kiang densities reported from Tibet. A catastrophic decline during the war and subsequent
recovery of the kiang population apparently led to the overstocking perception in Ladakh. In the Hanle Valley, an important
area for the kiang, its density was higher (0.56 km−2) although even here, we estimated the total forage consumed by kiang to be only 3–4% compared to 96–97% consumed by the large
livestock population (78 km−2). Our analysis nevertheless suggests that at a localized scale, some herders do face serious forage competition from kiang
in key areas such as moist sedge meadows, and thus management strategies also need to be devised at this scale. In-depth socioeconomic
surveys are needed to understand the full extent of the conflicts, and herder-centered participatory resolution needs to be
facilitated to ensure that a sustainable solution for livelihoods and kiang conservation is achieved. 相似文献
7.
英国、印度和美国生物多样性法律保护概况及其借鉴意义 总被引:1,自引:0,他引:1
生物多样性的保护问题是全人类共同面临的严峻现实。对英国、印度及美国的生物多样性法律保护情况进行的调查研究表明,这些国家的保护对象非常广泛,注重对生物多样性典型地区的保护,重视教育与宣传,加强各国间的合作。他们的许多经验值得我们在制定有关生物多样性保护法律、法规时加以借鉴。 相似文献
8.
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
9.
Monitoring the effectiveness of management activities within reserves is always a complicated task. When the focus of management
activities is mammals, it is difficult to monitor their populations in a way that is rapid, effective, and inexpensive. We
report on a mammal survey of a reserve in southwest China using remote-trip cameras. We surveyed 329 locations over 2 field
seasons in 2002 and 2003. Sixteen species of mammals were detected with these cameras, with four species documented for the
first time. After accounting for variation due to slope, aspect, elevation, and habitat type, the distribution of six species
was positively associated with the location of conservation stations and/or patrolling routes. Species of medium-sized mammals
are excellent candidates for monitoring programs based on these cameras, due to their relative abundance, sufficient size
to be detected by the camera units, and sensitivity to human activity. The distribution of mammals relative to management
efforts is a relatively rapid means to assess reserve effectiveness. The repeat use of the cameras as part of a monitoring
plan should provide a quantifiable measure of reserve effectiveness. 相似文献
10.
pH值是衡量降水酸性的重要指标。本文研究了都匀市降水pH值的变化趋势,并对其酸性降水的特征进行分析,提出了保护大气质量,降低酸雨频率的对策建议。 相似文献
11.
Smita Mishra Panda 《Environmental management》1999,23(2):205-216
/ Environmental degradation in many hill forest regions of Asia, inhabited by indigenous/tribal communities is growing at an unprecedented rate. The case of Orissa State in eastern India is no exception. The government is of the view that the local population is responsible for forest degradation as they practice swidden cultivation and forest gathering indiscriminately to sustain their livelihoods. Based on economic merit alone, the government has undertaken some policy initiatives. Such initiatives that are meant to stop swidden cultivation have not been successful. This study recommends an integrated framework for developing a sustainable natural resource management practice for tribal communities. The framework has taken into consideration both economic and noneconomic factors in evaluating various alternatives. Furthermore, it has been applied to two tribal communities in Orissa (Juang and Saora). Based on an economic analysis comparing returns from swidden as well as wetland cultivation, it is observed that where forest degradation is not serious, wetland cultivation does not have a significant economic merit vis-à-vis swidden cultivation. However, in view of the long-term sustainability issue within ecological limits, swidden cultivation may be phased out in favor of wetland cultivation with an appropriate transition period. During this transition, government must adopt suitable policy initiatives to provide tribals tenurial rights to land, help financially in creating settled lands through terracing, introduce certain improved agroforestry techniques and train tribal people in other income-generating activities. Furthermore, all such interventions made by the government should have a strong sociocultural component in order to attract the tribal people to give up swidden cultivation. 相似文献
12.
Rajiv K. Sinha 《Journal of Agricultural and Environmental Ethics》1997,10(2):183-197
The Green Revolution in India which was heralded in the 1960‘s was a mixed blessing. Ambitious use of agro-chemicals boosted
food production but also destroyed the agricultural ecosystem. Of late Indian farmers and agricultural scientists have realized
this and are anxious to find alternatives – perhaps a non-chemical agriculture – and have even revived their age-old traditional
techniques of natural farming. Scientists are working to find economically cheaper and ecologically safer alternatives to
agro-chemicals. Blue-Green Algae Biofertilizers, Earthworm Vermicomposts (Vermiculture), biological control of pests and herbal
biopesticides are showing promise. Saline agriculture and sewage farming are also being promoted in India to augment food
production in the face of water scarcity. There is a move to search for alternative foods, which are more nutritious, cheaper
and have shorter harvest cycles. Farm and food policy in India has to change its outlook before there can be a second green
revolution.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
13.
Living Amidst Large Wildlife: Livestock and Crop Depredation by Large Mammals in the Interior Villages of Bhadra Tiger Reserve,South India 总被引:7,自引:0,他引:7
Conflict with humans over livestock and crops seriously undermines the conservation prospects of India's large and potentially
dangerous mammals such as the tiger (Panthera tigris) and elephant (Elephas maximus). This study, carried out in Bhadra Tiger Reserve in south India, estimates the extent of material and monetary loss incurred
by resident villagers between 1996 and 1999 in conflicts with large felines and elephants, describes the spatiotemporal patterns
of animal damage, and evaluates the success of compensation schemes that have formed the mainstay of loss-alleviation measures.
Annually each household lost an estimated 12% (0.9 head) of their total holding to large felines, and approximately 11% of
their annual grain production (0.82 tonnes per family) to elephants. Compensations awarded offset only 5% of the livestock
loss and 14% of crop losses and were accompanied by protracted delays in the processing of claims. Although the compensation
scheme has largely failed to achieve its objective of alleviating loss, its implementation requires urgent improvement if
reprisal against large wild mammals is to be minimized. Furthermore, innovative schemes of livestock and crop insurance need
to be tested as alternatives to compensations. 相似文献
14.
Local Peoples' Knowledge,Aptitude and Perceptions of Planning and Management Issues in Nanda Devi Biosphere Reserve,India 总被引:2,自引:0,他引:2
Local peoples' knowledge, aptitude, and perceptions of planning and management issues were investigated in Nanda Devi Biosphere
Reserve (NDBR) in Uttaranchal State of India. Conflicts ensued between local inhabitants and the management authority due
to lack of community participation. Although most respondents seem to claim the knowledge of the objectives of Nanda Devi
Biosphere Reserve, the source of information indicates their interaction with the management authority is not frequent. While
local population seem to agree on reduced intensity of agriculture with compensation equal to loss of net income, there is
a perceptible difference in responses among different age groups. While the younger generation seems to agree to move away
to other areas with suitable compensation packages, the older generation prefer those options that require some adjustments
in use and access to natural resources. The option of ecotourism as a source of income is acceptable to most respondents,
but young and old respondents disagreed about impact of such activity on social behavior of local inhabitants. Among those
groups studied, only the “self-employed group” seem to be more interested in ecotourism in comparison to other occupation
classes. Gender differences in perceptions are prominent with reference to development options. While the men preferred economic
opportunities, the women preferred improved living conditions. An evaluation mechanism similar to the one described in this
paper will be helpful to the management authority to assess and modify their management plans to mitigate conflicts with local
people. 相似文献
15.
Ton Baars 《Journal of Agricultural and Environmental Ethics》2011,24(6):601-628
For further development of organic agriculture, it will become increasingly essential to integrate experienced innovative
practitioners in research projects. The characteristics of this process of co-learning have been transformed into a research
approach, theoretically conceptualized as “experiential science” (Baars 2007, Baars and Baars 2007). The approach integrates social sciences, natural sciences, and human sciences. It is derived from action research and belongs
to the wider field of transdiscliplinary research. In a dialogue-based culture of equality and mutual exchange the principal
of a “bottom-up” experiential learning process can be stimulated and fully reflective. It provides an opportunity to develop
organic agriculture as multiple best-practices based on transdisciplinary projects, cases studies, and case series. The aim
of the article is to describe the methodological characteristics and the theoretical and practical potential of experiential
science for research in and development of organic farming. Three characteristic projects are outlined to illustrate the main
elements of the methodology: the retrospective reflection on intuitive and experiential knowledge held by farmers; the knowledge
derived from on-farm experimentation; the exchange of knowledge and experiences between farming pioneers within a “masterclass”
setting. The study concludes that experiential science offers an important philosophical reconciliation process whereby a
synthesis of different approaches to research becomes possible in solving real-life problems: quantitative and qualitative,
subjective and objective, reductionistic and holistic, practice and science. Recognizing that there are multiple elements
contributing to the process of acquiring knowledge, experiential science draws on a broad field of scientific methods thereby
integrating the hermeneutic approach of social sciences and the Humanities with the established methods of contemporary natural
science. 相似文献
16.
Thousands of mammals are killed annually from vehicle collisions, making the issue an important one for conservation biologists
and environmental managers. We recorded all readily identifiable kills on or immediately adjacent to roads in the southern
Great Plains from March 2004–March 2007. We also recorded distance traveled, whether a road was paved or divided, the number
of lanes, and prevailing habitat. Surveys were opportunistic and were conducted by car during conditions of good visibility.
Over our 239 surveys and >16,500 km traveled, we recorded 1412 roadkills from 18 different mammal species (size ranged from
Sciurus squirrels to the white-tailed deer, Odocolieus virginianus). The overall kill rate was 8.50 / 100 km. Four species were prone to collisions: the Virginia opossum (Didelphis virginiana), nine-banded armadillo (Dasypus novemcinctus), striped skunk (Mephitis mephitis), and northern raccoon (Procyon lotor). Together they accounted for approximately 85% (1198) of all roadkills. Mortality rate differed significantly between 2-
and 4-lane roads (8.39 versus 7.79 / 100 km). Kill rates were significantly higher on paved versus unpaved roads (8.60 versus
3.65 / 100 km), but did not depend on whether a road was divided. Roadkills were higher in spring than in fall (1.5×), winter
(1.4×), or summer (1.3×). The spring peak (in kills / 100 km) was driven chiefly by the armadillo (2.76 in spring/summer versus
0.73 in autumn/winter) and opossum (2.65 versus 1.47). By contrast, seasonality was dampened by a late winter/early spring
peak in skunk mortalities, for which 41% occurred in the 6-week period of mid-February through March. The raccoon did not
exhibit a strong seasonal pattern. Our data are consistent with dispersal patterns of these species. Our results underscore
the high rate of highway mortality in the southern plains, as well as differences in seasonality and road type that contribute
to mortality. Conservation and management efforts should focus on creating underpasses or using other means to reduce roadkill
rates. 相似文献
17.
Control of Tamarix in the Western United States: Implications for Water Salvage, Wildlife Use, and Riparian Restoration 总被引:1,自引:0,他引:1
Shafroth PB Cleverly JR Dudley TL Taylor JP van Riper C Weeks EP Stuart JN 《Environmental management》2005,35(3):231-246
Non-native shrub species in the genus Tamarix (saltcedar, tamarisk) have colonized hundreds of thousands of hectares of floodplains, reservoir margins, and other wetlands in western North America. Many resource managers seek to reduce saltcedar abundance and control its spread to increase the flow of water in streams that might otherwise be lost to evapotranspiration, to restore native riparian (streamside) vegetation, and to improve wildlife habitat. However, increased water yield might not always occur and has been substantially lower than expected in water salvage experiments, the potential for successful revegetation is variable, and not all wildlife taxa clearly prefer native plant habitats over saltcedar. As a result, there is considerable debate surrounding saltcedar control efforts. We review the literature on saltcedar control, water use, wildlife use, and riparian restoration to provide resource managers, researchers, and policy-makers with a balanced summary of the state of the science. To best ensure that the desired outcomes of removal programs are met, scientists and resource managers should use existing information and methodologies to carefully select and prioritize sites for removal, apply the most appropriate and cost-effective control methods, and then rigorously monitor control efficacy, revegetation success, water yield changes, and wildlife use. 相似文献
18.
川西北地区位于青藏高原东南部,现有两栖爬行动物67种(亚种),其中两栖类28种,爬行类39种;珍稀、濒危种约占22.4%,经济意义大、有利用价值的种占29.8%,经济意义一般的种占47.8%。这些动物在科研、工艺、药用、维护生态平衡等方面均有一定意义。本文对这些动物的利用现状作了评价,并对资源保护提出5点建议。 相似文献
19.
David Sauri Francoise Breton Anna Ribas Joan Carles Llurdes Francesc Romagosa 《Journal of Environmental Planning and Management》2000,43(2):277-290
Traditional strategies of resource use in lowland coastal areas may play a very significant role in modern environmental management since, in many ways, the cultural and biological diversity peculiar to these ecoystems that we now wish to protect are the product of human efforts rather than the product of nature alone. We will illustrate this using the example of the so-called closes (enclosures) in the Natural Park of the Aiguamolls de l'Emporda (Catalonia, Spain). Closes are pasture fields surrounded by tree screens that remain inundated part of the year but that can be used for cattle grazing during the rest of the time. Because of agricultural modernization in the 1960s and 1970s many closes were turned into permanent agricultural fields. Since the creation of the Natural Park in 1983, there has been an attempt to recover these traditional land uses although not without some opposition by the farming sector. 相似文献
20.
The Ecological and Environmental Characteristics and Conservation of the Wetlands in the Changjiang Estuary, China 总被引:2,自引:0,他引:2
The natural wetlands in the Changjiang Estuary, China are important ecologically. The total area of the wetlands in the Changjiang Estuary amounts to 215000 ha. The wetlands consist of littoral and sandy estuarine island areas, and are rich in biological resources. There are 136 species of vascular plant, 150 species of bird, and 68 species of benthic macro-invertebrate in the wetlands. However, the wetland in the Changjiang Estuary is a vulnerable ecosystem. Development of the wetland is mainly influenced by intensive human reclamation, pollution, movement of sediments in the Changjiang River, and the effects of tides and waves. Investigations have shown that maintaining biodiversity, providing resources for the living organisms, purifying environments and resisting natural hazards could be regarded as important functions for the protection of the wetlands. It is proposed that sustainable principles should be supported in developing the wetlands in the future. 相似文献