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1.
理清自然保护地的空间关系与分布格局是加强空间管控、整合优化自然保护地体系的基础。以大熊猫国家公园四川片区内的自然保护地为案例,基于ArcGIS空间数据的处理、分析与可视化表达等功能,结合韦恩(Venn)图在空间层面上量化分析了公园范围内各类自然保护地的空间关系,并进一步揭示了不同保护情景下大熊猫(Ailuropoda melanoleuca)的分布格局。研究结果表明:(1)研究区内含有6类自然保护地,占研究区总面积的75.13%,其中40.68%为交叉重叠区域。(2)各类自然保护地皆存在大面积的交叉重叠。自然保护区为研究区面积最大的自然保护地类型,占自然保护地总面积的72.53%,其中45.89%为交叉重叠区域;其他类自然保护地占自然保护地总面积的60.87%,其中66.48%为交叉重叠区域。(3)猫点密度与自然保护地的交叉重叠程度呈现逆向增长趋势,区域的重叠水平越高,猫点密度越低。(4)自然保护地整体非重叠区的猫点密度高于重叠区。自然保护区是整体猫点密度最高的自然保护地类型,其非重叠区密度明显高于重叠区;森林公园非重叠区与水利风景区重叠区呈现较高的猫点密度。(5)与自然保护区交叉重叠...  相似文献   

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We use a geodatabase to investigate the distribution patterns of an important subset of floristic reports recorded for the Parco Nazionale delle Foreste Casentinesi, Monte Falterona, Campigna in the northern Apennines, Italy. This database was analysed using spatial statistical techniques and a digital elevation model. Significant relationships between species presence, sampling effort and species richness were then analysed in relation to topographical variables and to an existing vegetation map. Report-based rarefaction techniques were used to compare areas having different numbers of species recorded. Overall, the analysis shows that some areas of the park are richer in species of conservation interest than others, and that these have been more intensely investigated. Meanwhile, for other areas, botanical knowledge is scarce or even absent. This has led to clustering and redundancy of floristic data in some areas. The study confirms that the existence of a complete and up-to-date geodatabase creates a valuable resource which enables information gaps to be bridged. Such gaps often exist in biological databases for rare and narrowly distributed species. The wider application of these analyses should also give useful indications of how the incidences of these species of conservation interest are associated with particular environmental variables.  相似文献   

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刘晶茹  聶鑫蕊  周传斌  石垚  刘瑞权 《生态学报》2015,35(14):4891-4896
生态产业园已成为我国循环经济建设和可持续发展的重要载体之一,但我国的生态产业园明显存在着产业结构趋同、区域特色不鲜明等问题。提出了农工共生型生态产业园的概念,这是一类以工业园区为核心,集园区周边各类型农业相关企业、合作组织、农民、乡镇及农田为一体的一种"社会-经济-自然"复合区域产业共生体系。农工共生型生态产业园可以实现核心园区与周边腹地的协同发展,可以提升区域整体的生态效率。给出了农工共生型生态产业园的发展模式、建设意义及设计原则。并以农业大省河南省中唯一的国家级经济技术开发区为研究案例,结合当地区域特色及资源优势,构建了由3条产品链及一条服务链所组成的农工共生型产业生态系统。农工共生型生态产业园是产业共生理论在区域层面的具体实现,是复合生态系统理论在产业园层次的创新性应用。  相似文献   

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Bartonella henselae is the causative agent of Cat Scratch Disease (CSD) in humans. Cat is considered the reservoir of the bacterium. Identification of bacteriemic cats is the basic tool in the prophylaxis of CSD. Blood samples were collected between January 1999-December 2000 from 248 domestic cats living in an urban area (Reggio Emilia) in Northern Italy and tested for Bartonella henselae bacteriemia. Cultural and PCR methods were used. PCR was used directly on cat blood as well as to identify the Bartonella strain growth in culture. 24 (9.7 %) cats were found bacteriemic, most of which aged <1 year. A higher sensitivity was demonstrated by cultural method compared with PCR.  相似文献   

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Impact of predation by domestic cats Felis catus in an urban area   总被引:5,自引:0,他引:5  
  • 1 As companion animals, domestic cats Felis catus can attain very high densities, and have the potential to exert detrimental effects on prey species. Yet, there is a paucity of information on the impact of cat predation in urban areas, where most cats are likely to be present.
  • 2 We quantified the minimum number of animals killed annually by cats in a 4.2-km2 area of Bristol, UK, by asking owners to record prey animals returned home by their pets. The potential impact of cat predation on prey species was estimated by comparing the number of animals killed with published estimates of prey density and annual productivity.
  • 3 Predator density was 229 cats/km2.
  • 4 Five mammal, 10 bird and one amphibian prey species were recorded. Mean predation rate was 21 prey/cat/annum. The most commonly recorded prey species was the wood mouse Apodemus sylvaticus.
  • 5 Predation on birds was greatest in spring and summer, and probably reflected the killing of juvenile individuals. For three prey species (house sparrow Passer domesticus, dunnock Prunella modularis, robin Erithacus rubecula), estimated predation rates were high relative to annual productivity, such that predation by cats may have created a dispersal sink for juveniles from more productive neighbouring areas. The impact of cats on these species therefore warrants further investigation.
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国家公园首先是自然保护基地   总被引:2,自引:0,他引:2  
<正>随着社会经济的不断发展,我国对自然保护工作的认识不断提高,行动的力度也不断加大。中国共产党第十八次全国代表大会报告首次将生态文明建设与经济建设、政治建设、文化建设、社会建设并列,提出了建设中国特色社会主义五位一体的总体布局。党的十八届三中全会决议中提出"严格按照主体功能区定位推动发展,建立国家公园体制"。为了落实中央的决定,国家林业局、云南省人民政府和世界自然保护联盟(IUCN)于2014年4月28日在昆明联合组织召开了"国家公园建设研讨会"。  相似文献   

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Saproxylic beetle diversity is high at the Cabañeros National Park (central Spain), where woodland habitats exhibit remarkable heterogeneity. Our aim was to explain the diversity of saproxylic beetles, focusing on species turnover among mature woodland types. We surveyed five woodland types that represented the heterogeneity of the park’s woodland habitats. Beetles were collected using window traps over a period of 20 months. The Jaccard Similarity Index was used as indirect value of beta diversity among woodlands and to test the relation between species turnover and geographical distance. We also identified the contribution of species turnover to landscape diversity by using a partitioning model. Moreover, the presence of mixed woodlands (more than one tree species) allowed us to attempt to valorise the effect of tree species (coupled with their historical management) on species turnover among woodlands. Finally, we looked for different saproxylic beetle preferences for habitat and tree species using an indicator value method. We found that saproxylic beetle species composition varied significantly among the studied woodlands. The variation in species turnover was independent from the distance among woodlands, which suggested that beetle dispersal abilities could not explain this high turnover. Tree species within woodlands were a key factor that increased diversity turnover in woodlands and, consequently, the diversity of the park. Moreover, we found saproxylic beetle species that had different habitat and tree species preferences. We conclude that woodland heterogeneity (highly affected by woodland composition) seems to be the driving force for saproxylic beetle diversity in this protected area.  相似文献   

11.
金勇  安明态  崔兴勇  叶超  安青青 《广西植物》2019,39(12):1710-1723
该研究以国家重点保护野生植物为指示物种,结合贵州各县(市、区)的国家重点保护野生植物调查统计信息,基于GIS技术,分析了贵州省国家重点保护野生植物物种丰富度分布特征;应用Dobson算法筛选识别贵州国家重点保护野生植物的保护优先区,并利用全省已建自然保护区信息评价分析所筛选的保护优先区的保护现状。结果表明:(1)在贵州国家重点保护野生植物的物种丰富度分布上,总体来说全省南部地区高于北部地区,环省界区域往内陆延伸的物种丰富度明显呈现减少趋势。(2)在75%和100%的国家重点保护野生植物物种保护水平上,筛选识别出了荔波县等4个和17个县域为保护优先区,其中分别有1个和9个国家重点保护野生植物保护优先区内涵盖的自然保护区面积低于5%,且涉及的自然保护区中68.26%的面积是市/县级。(3)贵州国家重点保护野生植物物种较丰富的区域和全省生物多样性热点区域与所筛选识别的保护优先区有较好的空间对应关系。(4)贵州国家重点保护野生植物的就地保护应以国家重点保护野生植物地理分布丰富的区域结合本研究筛选的保护优先区为重点,进行优先保护。  相似文献   

12.
Community‐based conservation models have been widely implemented across Africa to improve wildlife conservation and livelihoods of rural communities. In Tanzania, communities can set aside land and formally register it as Wildlife Management Area (WMA), which allows them to generate revenue via consumptive or nonconsumptive utilization of wildlife. The key, yet often untested, assumption of this model is that economic benefits accrued from wildlife motivate sustainable management of wildlife. To test the ecological effectiveness (here defined as persistence of wildlife populations) of Burunge Wildlife Management Area (BWMA), we employed a participatory monitoring approach involving WMA personnel. At intermittent intervals between 2011 and 2018, we estimated mammal species richness and population densities of ten mammal species (African elephant, giraffe, buffalo, zebra, wildebeest, waterbuck, warthog, impala, Kirk's dik‐dik, and vervet monkey) along line transects. We compared mammal species accumulation curves and density estimates with those of time‐matched road transect surveys conducted in adjacent Tarangire National Park (TNP). Mammal species richness estimates were similar in both areas, yet observed species richness per transect was greater in TNP compared to BWMA. Species‐specific density estimates of time‐matched surveys were mostly not significantly different between BWMA and TNP, but elephants occasionally reached greater densities in TNP compared to BWMA. In BWMA, elephant, wildebeest, and impala populations showed significant increases from 2011 to 2018. These results suggest that community‐based conservation models can support mammal communities and densities that are similar to national park baselines. In light of the ecological success of this case study, we emphasize the need for continued efforts to ensure that the BWMA is effective. This will require adaptive management to counteract potential negative repercussions of wildlife populations on peoples' livelihoods. This study can be used as a model to evaluate the effectiveness of wildlife management areas across Tanzania.  相似文献   

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论保护区的管理体制   总被引:11,自引:4,他引:11  
一个国家保护区管理体制是否合理和完善与该国保护区发展的速度和管理的有效程度有密切关系。世界各国保护区的管理体制很不相同,各有长处和不足。本文对保护区的主管部门和管理系统、管理现况、存在问题和发展趋势以及我国保护区管理体制的改革等作一些粗略的评论,期待引起有关方面的关注并进一步开展研究。  相似文献   

16.
The cats (Felis catus) of this study were found to fluctuate daily between solitary and group living. These temporal changes in behaviour were interpreted as reflecting adjustments made by the cats for maximum use of different food sources available at these times. The dependence on both a solitary and communal life style for food procurement prevented any intricacy of either pattern from evolving. The structure of each behavioural pattern is discussed.  相似文献   

17.
Cathelicidins are small cationic antimicrobial peptides found in many species including primates, mammals, marsupials, birds and even more primitive vertebrates, such as the hagfish. Some animals encode multiple cathelicidins in their genome, whereas others have only one. This report identifies and characterizes feline cathelicidin (feCath) as the sole cathelicidin in domestic cats (Felis catus). Expression of feCath is predominantly found in the bone marrow, with lower levels of expression in the gastrointestinal tract and skin. By immunocytochemistry, feCath localizes to the cytoplasm of neutrophils in feline peripheral blood. Structurally, the mature feCath sequence is most similar to a subgroup of cathelicidins that form linear α-helices. feCath possesses antimicrobial activity against E. coli D31, Salmonella enterica serovar Typhimurium (IR715), Listeria monocytogenes and Staphylococcus pseudintermedius (clinical isolate) similar to that of the human ortholog, LL-37. In contrast, feCath lacks the DNA binding activity seen with LL-37. Given its similarity in sequence, structure, tissue expression, and antimicrobial activity, the cathelicidin encoded by cats, feCath, belongs to the subgroup of linear cathelicidins found not only in humans, but also non-human primates, dogs, mice, and rats.  相似文献   

18.
This study focused on establishing a framework for the designation of a conservation area reflecting an ecotope concept, and its application to Korea’s Seoraksan National Park. Taking into consideration the mountainous topography of the study area, the watershed was chosen as the planning unit, and ecotope mapping was carried out to identify topographic and biological features. For the evaluation of the state of recent use, the trail index and the distribution status of tour and management facilities were used. These features were processed using Marxan with Zones. As a result, the optimal solution of scenario 1 was selected as the final one following detailed verification of the area ratio and grouping of the Park Nature Conservation Area (zone A, 76.7%) and the Park Nature Environment Area (I) (zone B, 14.3%), the inclusion ratio of biotope grade I (95.2%) and the satisfied shortfall value of the conservation indicators. In the overlap analysis between the optimal solution and recent zonation, most of the features included in the suggested scenario were found to be correctly distributed according to the intensity of conservation. Furthermore, the northern parts of the watershed which include sub-alpine vegetation with the Baekdudaegan ridge as its ecological axis was newly separated into the Park Conservation Area. This verification confirmed the improvement of recent zonation through the concrete criteria of ecotope mapping.  相似文献   

19.
我国国家公园体制建设进展   总被引:3,自引:0,他引:3  
建立系统规范高效的中国特色国家公园体制是中国生态文明制度建设的一项重大战略举措, 对强化自然保护地建设管理、保护生物多样性、推动美丽中国建设具有重要而深远的意义。本文对国家公园体制试点以来取得的成效进行了梳理, 全面系统总结分析了2018年以来国家公园体制试点取得的明显进展, 结合相关要求, 提出了推动我国国家公园体制建设的策略建议, 以期为今后我国国家公园体制研究和发展提供一些参考和借鉴。  相似文献   

20.
The support, perceptions, values and aspiration of the local people, especially those who neighbour protected areas is increasingly recognised as critical for long-term biodiversity conservation in many countries. As such, conservation agencies are keen to understand the linkages and interactions between wildlife conservation and socio-economics of local communities. We assessed the socio-economic, demographic factors and livelihood status of the households of communities bordering Oldoinyo Sapuk National Park in central Kenya, and evaluated their willingness to support wildlife conservation. We randomly interviewed households that neighbour the Park on a wide range of socio-economic, livelihood and demographic factors. The majority of respondents were small-scale farmers practicing crop farming and livestock keeping. Most respondents considered the Park to have great potential for the future economic development of the area, especially through ecotourism as a potential avenue to support local livelihoods.  相似文献   

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