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1.
Documenting financial resources in biodiversity conservation is a key aspect worldwide in order to set priorities and use effectively the limited resources available. In Mexico, a megadiverse country, studies on financial resources invested in biodiversity conservation are scarce and do not address funding for conservation comprehensively. Using recent data from several sources and applying criteria based on the national priorities for conservation, we compiled, systematized and analyzed data at a national scale on financing sources, financial resources and conservation organizations and their projects. The information obtained is presented in various ways and part of it (case study) is already an information system that can be continuously up-dated. Some of the results show the following: a steady diversification of mechanisms and methods for raising funds for conservation; an increase in governmental budgets; the acknowledgment by the private sector of the importance of biodiversity conservation; a greater technical capacity in people and organizations working in conservation; a greater accessibility of financial resources to support and maintain conservation projects; yet a short term vision in conservation projects; among other. Although the results obtained through this study are a first approach, they can now be used as a baseline to continue gathering and analyzing information on conservation financing in Mexico.  相似文献   

2.
马克明  白雪 《生物多样性》2006,14(3):265-273
生物保护研究已经从保护生物学发展到保护生态学,在社会经济因素对自然保护影响日益广泛深刻的今天,我们应该更加主动地从经济学角度进行生物多样性保护。建立自然保护区是生物多样性就地保护的重要措施之一。目前的自然保护区管理研究基本上是以生物学和生态学为主,缺乏系统的经济学考虑,导致一些自然保护区的管理效果不理想,可持续性受到威胁。本文在回顾生物保护的相关经济学研究的同时,提出保护经济学的概念和研究框架,以期为自然保护区的经济管理提供一种新思路,为管理部门的保护投资决策提供支持。  相似文献   

3.
植物保护遗传学研究进展   总被引:50,自引:5,他引:45  
李昂  葛颂 《生物多样性》2002,10(1):61-71
保护遗传学是过用遗传学的原理和研究手段,以生物多样性尤其是遗传多样性的研究和保护为核心的一门新兴学科,近几十年来,遗传学研究在生物多样性保护的理论和实践中发挥着越来越重要的作用。本文简要回顾了保护遗传学的发展历史,研究方向和涉及的概念,着重介绍了植物保护遗传学研究所取得的一些进展,包括植物系统发育重建和保护单元的确定,遗传多样性与物种和群体适应性之间的关系,群体遗传结构与保护策略的制定以及植物遗传资源的鉴定和利用等方面的内容,并强调保护遗传学研究是未来生物多样性和保护生物学研究中一个亟待加强的研究领域。  相似文献   

4.
Species prioritization for conservation is primarily based on extinction risk assessments but less on sociocultural factors that influence conservation effectiveness. Here, we prioritized mammals for conservation according to their need for conservation attention, the feasibility of their conservation, and their potential to be used as flagship species in a rural community in northeast Brazil. We assessed species occurrence and ethnobiology through interviews, camera trapping, and active searches, and developed a prioritization scheme that accounts for species’ threat level (conservation status and local hunting pressure), cultural importance, and popularity. We found Tolypeutes tricinctus as the overall top-priority species because of its Endangered status and high popularity, which makes its conservation needed and feasible, and this species a potential conservation flagship. Panthera onca was the highest priority regarding the need for conservation attention due to its Critically Endangered status but the least feasible to conserve as it was the most unpopular species. Mazama gouazoubira was the most hunted and popular species. Despite not being threatened, it may also be prioritized for conservation, given its high hunting pressure and popularity, thereby constituting a possible local flagship species. Our results show that priority species for conservation can be reliably identified based on measures of need for conservation attention and expected conservation feasibility in local scales using rapid assessments. Accounting for ethnobiology in species prioritization for conservation allows a better understanding of the needs, opportunities, and obstacles for their conservation, consequently leading to better resource-allocation decisions in different socio-economic scenarios.  相似文献   

5.
Red Lists are legal instruments that guide decisions within the context of conservation. Such lists can indicate the most appropriate conservation actions, leading to choices of priority areas for conservation, or create alternatives to ensure the preservation of threatened species. However, if Red Lists are effective tools in the conservation of threatened species, then it is important that we have guaranteed the quality of taxonomic delimitation of these taxa. Here we discuss a case of taxonomic confusion, emphasizing the implications of misidentification in Red Lists. To avoid mistakes in species conservation, we advocate that a minimum level of taxonomic knowledge is needed to ensure success in preserving target species. Therefore, complementarity of taxonomy and conservation guarantee stronger conservation actions.  相似文献   

6.
Plant conservation urgently needs a concept that would unify different aspects of population viability as parts of conservation methodology. Such unification is especially lacking for ex situ conservation. We introduce a novel conservation approach in which ex situ collections maintained in natural or semi-natural environment and preserving both neutral and adaptive genetic diversity are a part of a complementary ex situ–in situ conservation strategy. Our approach is the first that explicitly takes into account ecologically significant (i.e. adaptive) variation of plants in both ex situ and in situ conservation actions. Using this approach we provide detailed guidelines for (1) representative sampling of the populations; (2) collection maintenance; and (3) utilization for in situ actions.  相似文献   

7.
Efficient conservation planning requires knowledge about conservation targets, threats to those targets, costs of conservation and the marginal return to additional conservation efforts. Systematic conservation planning typically only takes a small piece of this complex puzzle into account. Here, we use a return‐on‐investment (ROI) approach to prioritise lands for conservation at the county level in the conterminous USA. Our approach accounts for species richness, county area, the proportion of species' ranges already protected, the threat of land conversion and land costs. Areas selected by a complementarity‐based greedy heuristic using our full ROI approach provided greater averted species losses per dollar spent compared with areas selected by heuristics accounting for richness alone or richness and cost, and avoided acquiring lands not threatened with conversion. In contrast to traditional prioritisation approaches, our results highlight conservation bargains, opportunities to avert the threat of development and places where conservation efforts are currently lacking.  相似文献   

8.
Land use change alters species' abundance and distributions by affecting habitat availability and quality. The decline of bird populations worldwide is of major concern, and habitat protection and restoration are primary conservation actions. However, conservation decisions largely consider only short-term habitat changes and species’ population dynamics in a given area. Disregarding long term modifications in species’ available habitat, and the role of a given population for a species’ global population may lead to misdirected conservation action. Our goal here was to combine the assessment of conservation responsibility, with that of century-long available habitat dynamics, in order to inform better conservation practice. We compiled available habitat data for 170 bird species in the Carpathian Region from 1860 to 2010 from historic maps and satellite data. We analyzed these species’ range distributions, IUCN extinction risk and population trends, and we identified 29 species of high conservation responsibility, and all of them were forest or and grassland specialists. Furthermore, we found major land use trends including cropland abandonment and increase in forests and grasslands that resulted in increases in potential habitat for the species for which the Carpathians have high conservation responsibility. The loss of row-crop agriculture, on the other hand, reduced habitat for species for which the Carpathians do not have high responsibility, and thus subsidizing agriculture may not be warranted from a conservation perspective. More broadly, many regions worldwide are undergoing rapid land use changes, and we suggest that these should be analyzed relative to a given regions’ conservation responsibility to see if there are opportunities for conservation, i.e., cases similar to the Carpathians, where conservation efforts ‘only’ have to foster current land use trends, and make them permanent, rather than to try to revert the loss of habitat.  相似文献   

9.
Effectivebiodiverdityconservationneedsasoundlegalsystemthatincludesthelegisla-tionininternational,nationalandlocallevels.TheConventiononBiologicalDiversity(CBD)thatenteredintoforceonDecember29,1993,isaninternationallegalinstrument.Asaframeconvention,ithasformedalegalsystem,togetherwiththeotherinternationalagree-mentssuchastheConventiononWetlandsofInternationalImportanceEspeciallyasWater-fowlHabitat(Ramsar1971),theConventionConcerningtheProtectionoftheWorldCul-turalandNaturalHeritage(P…  相似文献   

10.
Twenty leading scientists in the field of marine conservation planning attended the first international workshop on conservation planning in the Mediterranean Sea. This globally significant biodiversity hotspot has been subjected to human exploitation and degradation for 1,000s of years. Recently, several initiatives have tried to identify priority areas for conservation across the Mediterranean Sea. However, none of these efforts have led to large-scale actions yet. The aim of the workshop was to establish a network of scientists who are involved in large-scale conservation planning initiatives throughout the Mediterranean basin to promote collaboration and reduce redundancy in conservation initiatives. The three focus groups of the workshop build on existing efforts and intend to deliver: (1) a roadmap for setting conservation priorities, (2) a methodological framework for linking threats, actions and costs to improve the prioritization process, and (3) a systematic conservation planning process tailored to complex environments such as the Mediterranean Sea. Joining forces and involving more scientists (especially from the South-eastern part of the region) in following meetings, the participants endeavour to provide guidelines on how to bridge the science-policy gap and hence aid decision-makers to take efficient conservation actions.  相似文献   

11.
中国鸡形目鸟类的现状与保护对策   总被引:13,自引:0,他引:13  
鸡形目是一个与人类关系非常密切的鸟类类群 ,其保护工作受到国际自然保护组织的广泛关注。作为世界上鸡形目鸟类资源最为丰富的国家之一 ,我国加强该类群鸟类的保护工作不仅是野生动物资源保护的一个重要组成部分 ,而且对全球生物多样性的保护具有特别重要的意义。本文结合国家林业局“十五”期间将要实施的《全国野生动植物及自然保护区建设工程总体规划》 ,对我国鸡形目鸟类的多样性、特有性和分布特点进行了阐述 ,对该类群的濒危状况和致危因素进行了分析 ,从就地保护、易地保护以及科学研究三个方面介绍了我国在该类群研究与保护方面所取得的成就 ,探讨了目前保护管理工作中所存在的问题并提出了相应的保护对策  相似文献   

12.
The number of protected areas (PAs) has steadily increased in the past 20 years, but their effectiveness to meet conservation targets is consistently questioned. Most conservation impact evaluations of protected areas assume that formal designations, like that of IUCN categories, reflect site-specific conservation rules, but this is not always true. In this paper we illustrate how conservation rules could be empirically assessed by use of content analysis combined with optimal scaling. This flexible methodology allows us to quantitatively assess strictness levels for use in conservation impact evaluations. The strictness measures could also indicate whether conservation rules are consistently applied in the different IUCN categories thereby providing guidance for future assignment of PAs to the IUCN protected area management categories. We illustrate how policy indicators based on conservation rules could be developed in two contrasting mountain protected area networks in Norway and in British Columbia (BC), including a total of 48 PAs in Norway and 51 in BC. Conservation rules for recreational use, motorized access and resource use were quantitatively assessed, thus providing a measure of how strictly PAs regulate the different human activities. Our results show that the main differences in strictness are between the two countries, followed by the contrast between national parks and provincial parks in BC. Overall, Norway has a more liberal conservation policy than BC and older national parks in BC have a much stricter conservation policy than most of the other PAs in this study. Overarching conservation objectives did not reflect the level of strictness (the conservation rules) that guide the daily management of individual PAs. This applies to both countries. We recommend to empirically investigate site-specific conservation rules to include de facto management of human activities in conservation policy impact evaluations. The methodology is also useful for monitoring downgrading of the protected area status, which is a result of authorizing human activities that are not consistent with conservation objectives.  相似文献   

13.
The conservation of biological diversity is gaining an increasing amount of global attention. In particular, in Saudi Arabia, conservation actions have become a topic of focus, with many successful initiatives being implemented. Despite these efforts, several wild animal species in Saudi Arabia still require special attention to ensure their long-term conservation and survival. If not effectively controlled, certain challenges could threaten the conservation status of local wildlife. Various conservation strategies are employed in Saudi Arabia to control these challenges, minimize their influence, and promote conservation action. Such strategies have proven to be effective; however, further efforts are still required, particularly outside protected areas. The conservation of species in critical situations primarily depends on the creation of protected areas and human intervention. Wildlife conservation is a collaborative effort; every individual has a role to play in protecting wild animals in each unique ecosystem to ensure their survival and the sustainability of their habitats for future generations.  相似文献   

14.
When protected areas reduce threats within their boundaries, they often displace a portion of these threats into adjacent areas through a process known as ‘leakage’, undermining conservation objectives. Using theoretical models and a case study of terrestrial mammals in Indonesia, we develop the first theoretical explanation of how leakage impacts conservation actions, and highlight conservation strategies that mitigate these impacts. Although leakage is a socio-economic process, we demonstrate that its negative impacts are also affected by the distribution of species, with leakage having larger impacts in landscapes with homogeneous distribution of species richness. Moreover, leakage has a greater negative effect when conservation strategies are implemented opportunistically, even creating the potential for perversely negative consequences from protected area establishment. Leakage thereby increases the relative benefits of systematic conservation planning over opportunism, especially in areas with high leakage and heterogeneously distributed species. Although leakage has the potential to undermine conservation actions, conservation planning can minimize this risk.  相似文献   

15.
Red lists serve as the most prominent tool for priority setting in applied conservation, even though they were not originally designed for this task. Hence, threat status does not always reflect actual conservation needs and can be very different from actual conservation priorities. Therefore, red lists may at best be a suboptimal tool for setting conservation priorities in a country or region. As a response, a range of alternative or complementary tools have been developed, with approaches, methods, and parameters such as population decline, population center etc. used, differing widely among countries. One recent development is the combination of conservation status with a measure of the international importance of a population in a focal region for the global survival of a species. Here, we provide a new method that integrates the two concepts while keeping them conceptually separate. The main benefit of this method is that it can be applied across variable geographical scales such as regions, countries, and even continents. Furthermore, it allows for better recommendations for applied conservation and conservation policy development than the two concepts in isolation. Our method, if applied internationally, would allow for a standardized priority setting in species conservation, would be highly comparable between countries, and would lead to a more efficient use of the limited financial and human resources for monitoring and conservation of biodiversity.  相似文献   

16.
Systematic conservation planning has become a standard approach globally, but prioritization of conservation efforts hardly considers species traits in decision making. This can be important for species persistence and thus adequacy of the conservation plan. Here, we developed and validated a novel approach of incorporating trophic information into a systematic conservation planning framework. We demonstrate the benefits of this approach using fish data from Europe's second largest river, the Danube. Our results show that adding trophic information leads to a different spatial configuration of priority areas at no additional cost. This can enhance identification of priority refugia for species in the lower position of the trophic web while simultaneously identifying areas that represent a more diverse species pool. Our methodological approach to incorporating species traits into systematic conservation planning is generally applicable, irrespective of realm, geographical area, and species composition and can potentially lead to more adequate conservation plans.  相似文献   

17.
大部分保护机构只有能力在特定种群层面上保护大型食肉动物, 而物种的灭绝风险却是在全球尺度进行评估的。因此, 要填补这一尺度断层, 多机构的工作与意见汇总非常必要。本研究综合了文献和18家中国雪豹(Panthera uncia)研究与保护机构共24位一线工作人员提供的信息, 经过两次集体讨论和填写评分表格的方式, 识别出21种威胁因素, 在全国层面和青海、西藏、新疆、四川和甘肃5个主要雪豹分布省区层面对威胁进行了排序, 并汇总了各保护机构实施的17项保护行动, 以及各项行动所应对的威胁。全国评分前三的威胁依次是基层保护部门能力不足(9.5分)、气候变化(8.0分)、当地社区保护动力不足(6.8分), 不同省区的威胁排序则体现出很大差异性。其中, 目前仍没有任何行动措施应对气候变化。虽然已有一些保护行动来应对基层保护能力不足和当地社区保护动力不足的问题, 如保护区能力建设、开展社区监测等, 但行动的覆盖尺度仍远远不够。  相似文献   

18.
In this paper we present the results of a multi-criteria decision analysis used to identify a comprehensive set of criteria for assigning biodiversity value to sites for conservation planning. For effective conservation management, biodiversity value needs to be a composite of biotic and abiotic factors. However, in the reserve design literature, conservation value is assigned with a limited set of metrics usually based on comprehensiveness, representativeness and persistence which may be insufficient at fully capturing biodiversity value. A group of conservation specialists in California, USA, used a multi-criteria decision making framework to elucidate and weight criteria for scoring biodiversity value at sites. A formal model for consensus and negotiation was applied to aggregate individuals’ criteria weights across all group members. The group identified ecological condition, followed by biotic composition as the most important contributors to site conservation value. Long- and short-term threats causing fragmentation and degradation are also important criteria to consider. Key criteria are identified for which further data collection would serve the greatest purpose in prioritizing sites and the role of prioritization criteria in the larger context of systematic conservation planning is discussed. With the recognition that biodiversity value plays an important role in conservation decisions, the criteria presented here represents a comprehensive suite of factors to consider when assigning biodiversity value to sites for conservation planning. These can serve as an encompassing list which other groups can customize for the purpose of biodiversity evaluation for alternative conservation planning contexts.  相似文献   

19.
In many developing countries, conservation is regarded in a negative manner and this supports critical framings of conservation as a form of government or imperialism. This article examines debates about conservation and forests in Laos, and in particular, at the site of the World Bank supported Nam Theun 2 hydropower project that has featured prominently in international and national critiques of conservation. In Laos, foreign-driven conservation initiatives have at times challenged nationwide aspirations for development. But a fuller understanding of Lao concerns requires attention not only to international interventions, but also to perspectives of forests and management of these resources by the Lao state. Most significantly, a widely shared idea of foreign conservation as opposed to Lao development is used to elide the emergent competition between the state and rural villagers over forest resources. Anti-conservation sentiments, like their converse, can thus be used as strategies of government.  相似文献   

20.
石羊河流域生态系统服务权衡与协同关系研究   总被引:5,自引:0,他引:5  
王蓓  赵军  胡秀芳 《生态学报》2018,38(21):7582-7595
生态系统服务权衡与协同研究是国际生态学、地理学等学科研究的热点。以石羊河流域为研究区,借助In VEST模型,对流域2005、2010和2015年的水源涵养、土壤保持、水质净化、碳储存和生物多样性五项服务进行精准测度,分析服务的时空格局及演变特征,并利用相关系数法逐像元定量计算5种服务之间的权衡与协同关系,从不同尺度分析权衡与协同关系的空间格局特征。结果表明:(1)各项服务具有空间异质性:水源涵养、土壤保持、碳储存、生物多样性呈"西南高-东北低"的空间格局,且水质净化、碳储存服务的高值区沿河流分布。(2) 10年期间,水源涵养、水质净化、碳储存、生物多样性服务呈现"整体增加-局部减少"的变化趋势,而土壤保持呈"整体减少-局部增加"的变化特征。(3)多种服务之间权衡与协同关系具有区域依赖特征:水源涵养与土壤保持、水源涵养与水质净化、水质净化与碳储存、水质净化与生物多样性、土壤保持与碳储存、土壤保持与生物多样性以权衡关系为主;水源涵养与碳储存、水源涵养与生物多样性、土壤保持与水质净化、碳储存与生物多样性以协同关系为主。定量可视化评估生态系统服务及权衡关系,为制定区域发展与生态保护双赢政策提供依据,同时也为其他流域的相关研究提供可靠参考。  相似文献   

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