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1.
    
A wide variety of pathogens is transmitted from ticks to vertebrates including viruses, bacteria, protozoa and helminths, of which most have a life cycle that requires passage through the vertebrate host. Tick-borne infections of humans, farm and companion animals are essentially associated with wildlife animal reservoirs. While some flying insect-borne diseases of humans such as malaria, filariasis and Kala Azar caused by Leishmania donovani target people as their main host, major tick-borne infections of humans, although potentially causing disease in large numbers of individuals, are typically an infringement of a circulation between wildlife animal reservoirs and tick vectors. While new tick-borne infectious agents are frequently recognised, emerging agents of human tick-borne infections were probably circulating among wildlife animal and tick populations long before being recognised as clinical causes of human disease as has been shown for Borrelia burgdorferi sensu lato. Co-infection with more than one tick-borne infection is common and can enhance pathogenic processes and augment disease severity as found in B. burgdorferi and Anaplasma phagocytophilum co-infection. The role of wild animal reservoirs in co-infection of human hosts appears to be central, further linking human and animal tick-borne infections. Although transmission of most tick-borne infections is through the tick saliva, additional routes of transmission, shown mostly in animals, include infection by oral uptake of infected ticks, by carnivorism, animal bites and transplacentally. Additionally, artificial infection via blood transfusion is a growing threat in both human and veterinary medicine. Due to the close association between human and animal tick-borne infections, control programs for these diseases require integration of data from veterinary and human reporting systems, surveillance in wildlife and tick populations, and combined teams of experts from several scientific disciplines such as entomology, epidemiology, medicine, public health and veterinary medicine.  相似文献   

2.
    
The ultimate goal of Wildlife Rehabilitation Centres is to release wild animals back into the wild, after providing care and treatment according to protocol. The data collected during the process though, can be an invaluable resource of information, and act as a proxy of the anthropogenic impact on wild populations. They can even help to propose mitigation and conservation measures that could reduce pressure on wildlife. In the current study, we analysed the records of ANIMA, a prominent Wildlife Rehabilitation Centre in Athens, Greece, over a 17-year study period. Using a database of 54,445 animals representing 353 species from 104 families, we draw connections between the magnitude of admission causes and their predicted outcomes based on the animals admitted. We found that while many animals that are admitted as orphans or after living in captivity have good chances of being released, that is not the case for victims of electrocution or domestic animal attacks. Illegal shooting is clearly present in our data and seems to also affect wild populations negatively. We highlight the importance of Wildlife Rehabilitation Centres’ data towards understanding and defining human impact on wildlife, the importance of communicating the results to policymakers for biodiversity conservation and even proposing possible management directions. In that context, we also urge for more population monitoring field studies, so that admission data can be accurately combined and make meaningful predictions for the status of wild populations.  相似文献   

3.
Protected areas are key to conservation of biodiversity, and Australia is one of the world’s megadiverse regions. Monitoring programs provide the information to assess the state of conservation resources, the severity of threats and the success of management responses. Here we compare the management priorities, monitoring priorities and actual monitoring practices of protected area management agencies in Australia, using four sets of data at continental scale and five at a more restricted regional scale. We track changes over a period of several years and focus at successively finer levels of detail. At both continental and regional scales, most management plans emphasise fire, invasive species and visitor management; and most monitoring programmes refer to visitor numbers and impacts as well as species and ecosystems. There is only a weak match, however, between reported management priorities and actual monitoring programmes; and the effectiveness of management responses is rarely monitored. The level of detail in visitor monitor programmes varies considerably: most parks count visitors, but few know what those visitors do. Threats from fire and invasive species receive more attention that those from recreation. At regional scale, the proportion of parks with defined monitoring programmes and priorities increased significantly from 2003/2004 to 2006/2007. Whilst only a proportion of protected areas monitor endangered species populations, for those that do this is the parameter reported in most detail, with many parks reporting single records of single individuals. Some parks also maintain anecdotal records of rare species outside routine monitoring programs.  相似文献   

4.
This paper analyzes inherent incentives and institutional challenges in managing elephant sanctuary ecosystems, using the case of the Babile Elephant Sanctuary in Ethiopia. The study was based on the data collected from local communities experiencing different livelihood systems and experts from the local state authorities. A total of 35 interviews were conducted for an in-depth case study. Results show that historical and socio-political factors have undermined the effectiveness of state-based institutions in managing the ecosystem. The welfare loss of local communities relying on the ecosystem has resulted in a dispute between the state managing the ecosystem and those holding customary rights to the delineated land. Absence of adequate compensation for the crop damage by elephants has made the local people to regard the state intervention as unfair action. The study suggests the need to search for institutional frameworks that can transform hostile relationship into a mutually beneficial one. Such condition may ensure humans’ peaceful co-existence with the wildlife without destroying the habitat and constraining sustainable livelihoods.  相似文献   

5.
Commercial trade in wildlife is the major cause of species endangerment and a main threat to animal welfare in China and its neighboring countries. Driven by consumptive use for food and traditional medicine, the large volume of both legal and illegal trade in wildlife has caused great destruction to ecosystems and pushed many species to the brink of extinction. Data gathered from trading hubs at ports, boundary markets, city markets and stores, indicates the large amount of wildlife traded in the region of Guangxi, Yunnan and Qinghai provinces, a direct result of the numerous wildlife markets available. In a survey distributed in various trading places, while about half of the respondents agreed that wildlife should be protected, 60% of them had consumed wildlife at some point in the last 2 years. The results also indicated that law and regulation on wildlife trade control is insufficient. Wildlife trade controls are very limited because of bias on the utilization of wildlife as a natural resource to be exploited by the government agencies. The survey also shows that the current situation of wildlife consumption in key cities in China is serious, especially the consumption for food. The main consumption groups in China are male and young people with high education levels and good incomes. The key in public awareness publicity and education is to give them more information on the negative impacts of wildlife consumption and knowledge of protection.  相似文献   

6.
    
Outcome prediction is important for conservation; however, analysis may be hampered by specialist resource deficiencies. Mental modelling techniques offer a potential solution, drawing on accessible sources of knowledge held informally by local stakeholders. Mental models show linked social and ecological variables from the perspectives of community members, whose insights may otherwise be neglected. Currently, an important weakness in conservation mental modelling is inadequate attention paid to real-time model predictive validity. To address this knowledge gap, baseline mental model predictions concerning Beaver (Castor fiber) reintroduction in Southwest England were followed up at three years. Participants were invited to submit outcome observations for concept variables identified in their original models, blind to inferences based on model dynamic analysis, so that the two sets of data could be compared. Individual concept values and models were found to show weak and highly inconsistent predictive validity, however, multi-stakeholder aggregated mental models showed consistently strong predictive performance. This finding was enhanced by setting tighter thresholds for inclusion of individual model items in aggregation procedures. Threshold effects can be interpreted as a reflection of greater agreement: tighter thresholds retain more highly shared model components. It is proposed that enhanced real-time predictive validity for aggregated models is explained by a ‘wisdom of the crowd’ statistical effect, analogous to well-recognised crowd judgement effects observed in relation to much simpler questions. The findings show the scope for stakeholder mental modelling methods as an investigative tool, to supplement more conventional ecosystem assessments in predicting data-poor conservation outcomes.  相似文献   

7.
Urbanization along the eastern seaboard of Australia has increased the potential for conflict between humans and wildlife. The northern suburbs of Sydney are home to the southern brown (Isoodon obesulus) and the long-nosed bandicoot (Perameles nasuta). Both are known to enter yards of home owners causing a disturbance to yard plantings and an interaction with domestic pets. Understanding the driving factors behind the public’s perception of bandicoots will enable wildlife managers to develop effective and socially acceptable conservation strategies. Six hundred and thirty questionnaires were distributed to the residents bordering Ku-ring-gai Chase and Garigal National Park in Sydney, Australia, to assess the sources of conflict. Eighty-three percent of respondents had experienced bandicoot interactions and 27% had experienced interactions on a daily basis. This interaction with bandicoots influenced respondents’ perception of a bandicoot as a nuisance or pest. The age of the resident and pet ownership status also influenced respondents’ attitudes. Contrary to anecdotal reports, there was an overall positive response from the community. The information gained from this survey will inform the development community-based management strategies for the bandicoots of northern Sydney. Communicated by W. Lutz  相似文献   

8.
魏辅文 《兽类学报》2022,42(5):475-476
青藏高原是我国重要的生态屏障区,动物资源丰富,物种独特,是开展野生动物保护生物学研究的天然实验室。尽管青藏高原野生动物保护研究已取得重要成就,但随着科学技术的发展与进步,未来可以在以下3个方面进一步加强。一是坚持高原野生动物种群及栖息地的长期监测;二是利用多学科交叉及宏微观结合的技术与方法开展整合生物学研究;三是进一步加强高原野生动物保护生物学研究青年科技人才的培养。  相似文献   

9.
林翙  方盛国 《兽类学报》2005,25(1):86-90
基因组文库是进行分子克隆和基因组结构与功能研究的基础。完整的基因组文库的构建, 使任何DNA 片段的筛选和获得成为可能。随着不同克隆载体的相继出现, 基因组文库也经历了一系列的发展过程。其中, BAC文库因其转化效率高、嵌合体少、插入片段易回收, 以及容载量较大等优点而被广泛应用。近几十年来, 随着环境的日益恶化、分子遗传学技术的迅速发展, 以及保护生物学和分子遗传学的不断相互渗透, 孕育产生了保护遗传学这一分支学科。作为保护遗传学中物种保护策略的重要部分, 建立濒危野生动植物的基因组文库, 是保存其种质资源的最为有效的实际手段和方法, 并能为进一步开展与生殖、疾病和重要经济性状等方面有关的功能基因的研究, 提供可靠的材料保证。  相似文献   

10.
    
The ongoing coronavirus disease 19s pandemic has yet again demonstrated the importance of the human-animal interface in the emergence of zoonotic diseases, and in particular the role of wildlife and livestock species as potential hosts and virus reservoirs. As most diseases emerge out of the human-animal interface, a better understanding of the specific drivers and mechanisms involved is crucial to prepare for future disease outbreaks. Interactions between wildlife and livestock systems contribute to the emergence of zoonotic diseases, especially in the face of globalization, habitat fragmentation and destruction and climate change. As several groups of viruses and bacteria are more likely to emerge, we focus on pathogenic viruses of the Bunyavirales, Coronaviridae, Flaviviridae, Orthomyxoviridae, and Paramyxoviridae, as well as bacterial species including Mycobacterium sp., Brucella sp., Bacillus anthracis and Coxiella burnetii. Noteworthy, it was difficult to predict the drivers of disease emergence in the past, even for well-known pathogens. Thus, an improved surveillance in hotspot areas and the availability of fast, effective, and adaptable control measures would definitely contribute to preparedness. We here propose strategies to mitigate the risk of emergence and/or re-emergence of prioritized pathogens to prevent future epidemics.  相似文献   

11.
This paper examines the role of Mexico as importer, manufacturer, producer and distributor centre of reptile skins from non-native and native species, through a combination of documentary research and survey methods. A number of key findings were derived from this study. Although Mexico has adopted the “System for the Conservation, Management and Sustainable Use of Wildlife” (SUMA), the country still relies on reptile skins from non-native species. In contrast, the smaller numbers of skins used from native species mainly derive from captive breeding schemes that although biologically sustainable, provide no incentive for habitat conservation. Sustainable use of reptile skins from native species could positively encourage conservation in Mexico. However, as a megadiverse country with potential to produce wildlife, Mexico will have to implement an appropriate regulatory framework to support local communities to promote the sustainable use of native species.  相似文献   

12.
Parasites, as organisms with a particular way of life, form an important part of biodiversity, not only regarding the number of known species, but also because of their relevant role within ecological processes. These two facts should justify conservation of parasites, at least within natural and protected areas. Little is known about such complex communities of parasites but they are often considered as pests, even out of the fields of public (human) health and animal production, that is, just in the natural environment or under natural conditions. It is increasingly assumed that wildlife diseases, including those produced by parasites, are one of the main bases for managing animal populations. Parasitic diseases may also be managed and, at this point, we can find multiple technical problems which, in certain occasions, lead into philosophical questions or true dilemmas. These considerations are illustrated by revising parasites of the Spanish ibex (Capra pyrenaica), an Iberian mountain ungulate the parasitofauna of which is relatively well known. As a big game species, its trophies become more and more appreciated. Therefore, human dimensions involved in management of its populations are considerably increased. Finally, reasons and opportunities for managing parasitic diseases affecting ibex are revised and discussed, under a global goal or perspective of conserving parasites within natural areas, particularly those that are protected.  相似文献   

13.
Abstract: A previous analysis of the content of articles published in The Wildlife Society (TWS) journals from 1937 to 1989 concluded that TWS should strive to publish more articles on nongame and endangered species, ecosystems, habitat fragmentation, and human dimensions. We revisited this analysis and included the years 1990–2007 to determine whether, and how, TWS journals have addressed previous concerns. We also analyzed changes in subject content for TWS journals from 1937 to 2007 using selected terms that we considered indicative of emerging trends within the wildlife profession and society by documenting patterns of use of these terms as key words. Additionally, we evaluated authorship patterns for all TWS journals during 1937–2007 to determine trends in both numbers of authors per article and author affiliations. Our analysis demonstrated that the content of TWS journals has changed over time, and the changes reflected emerging themes in TWS, the wildlife profession, and society. We documented increases in published studies of nongame species and multiple species and articles with multiple authorships representing diverse affiliations. We argue that these patterns reflect a TWS response to shifts in public opinion, policy developments, advances in technology, and changes in university curricula. Although the number of studies published on human dimensions and conservation education has increased over time, these disciplines remained underrepresented.  相似文献   

14.
    
Overexploitation, pollution, habitat loss or emerging diseases have led to a large number of species to extinction. This has made zoos and wildlife enclosures expand their goals beyond entertainment and fun; their participation in conservation and research programs is important for the recovery of multiple species. To ensure success, staff need to know the specific requirements of each species. In case of the Iberian ibex (Capra pyreanica), a wild ungulate endemic to the Iberian Peninsula, different sarcoptic mange outbreaks caused dramatic declines of some ibex populations, which led managers and researchers to explore strategies aimed at preventing and controlling this disease and to reduce its impact on ibex populations. Such management plans included the creation of stock reservoirs as an in-situ conservation measure. The objective of the stock reservoir El Toril, as a key part of a general management plan, is to keep in captivity (in range) a sex and age structured representation of the free-ranging population, with most of its genetic variability, destined for conservation programs. However, under captivity conditions with potential for high concentration of animals, direct contact and stress occur and the appearance, transmission, and severity of diseases could be favored. Therefore, it is necessary to establish health protocols in order to guarantee animal welfare. Spanish Animal Health laws establish specific requirements and preventive measures for controlling diseases in captive populations: sarcoptic mange, tuberculosis, brucellosis and bluetongue are notifiable diseases, and the staff of the reservoir must apply specific diagnostic methods to detect them. The management recommendations presented here may be very useful for other managers involved in the conservation of wild ruminants.  相似文献   

15.
    
Use of molecular markers for identification of protected species offers a greater promise in the field of conservation biology. The information on genetic diversity of wildlife is necessary to ascertain the genetically deteriorated populations so that better management plans can be established for their conservation. Accurate classification of these threatened species allows understanding of the species biology and identification of distinct populations that should be managed with utmost care. Molecular markers are versatile tools for identification of populations with genetic crisis by comparing genetic diversities that in turn helps to resolve taxonomic uncertainties and to establish management units within species. The genetic marker analysis also provides sensitive and useful tools for prevention of illegal hunting and poaching and for more effective implementation of the laws for protection of the endangered species. This review summarizes various tools of DNA markers technology for application in molecular diversity analysis with special emphasis on wildlife conservation.  相似文献   

16.
Wildlife value orientations are patterns of basic beliefs that give direction and meaning to fundamental values in the context of wildlife. Wildlife value orientations can help managers estimate public evaluations to management interventions. Their usefulness, both practically and scientifically, depends on their predictive potential. This article examined the predictive value of wildlife value orientations on the acceptability of wildlife management interventions in different situations. The situations varied in (a) severity of the human wildlife problem and (b) severity of the interventions for wildlife. Two wildlife value orientations were measured: domination (human needs have priority over wildlife well-being, 10 items) and mutualism (rights are assigned to wildlife, 9 items). Acceptability was measured as a dichotomous variable for management interventions across 5 different situations. The predictive value of wildlife value orientations was largest for acceptability of the most severe interventions (hunting, 35–42% of variance explained), followed by the least severe interventions (doing nothing, 5–17%) and the intermediate interventions (shaking eggs or applying contraceptives, 1–9%) in the scenarios that include a problem for humans. Value priorities appear to be an integral feature of value orientations. Intermediate interventions do not harm wildlife, but might solve the problem caused by wildlife. Such interventions also create minimal small internal value conflicts. Orientations that prioritize values and offer a template for conflict resolution are likely to have less predictive potential for these interventions.  相似文献   

17.
    
We have investigated how indices of beach health perform in predicting the abundances of the crustaceans Emerita brasiliensis and Atlantorchestoidea brasiliensis from 22 metropolitan beaches in the cities of Rio de Janeiro and Niterói. Urbanization, Recreation and Conservation indices were used to assess sandy beaches health. Grain size and beach slope were used as morphodynamics indicators. Diagram from the principal component analysis clearly separated beaches with different urbanization and conservation levels. Generalized additive models (GAM's) were adjusted for species abundance using the indices and morphodynamic parameters as explanatory variables. Lower abundances were predicted for beaches with high levels of urbanization, whereas predictions of higher abundances occurred on beaches with high conservation levels. Using theoretic inference we showed that the urbanization index was the most important predictor for abundance of A. brasiliensis and the conservation index was the most important predictor for E. brasiliensis, reflecting different responses by upper tidal and intertidal species. A. brasiliensis occupies the intermediate and upper beach zones and E. brasiliensis is a swash zone filter-feeder that is more abundant in pristine beaches. Both species are highly subject to the impact of bathers and coastal modification. Unexpected, the recreation index did not show a negative effect on abundance predictions. Urbanization and conservation indices can be suitable metrics to measure anthropogenic effects on macrobenthic species. Moreover, mole crabs and sandhoppers species can be easily monitored. Coastal urbanization is a global phenomenon and we used the diagram of urbanization and conservation levels to expose possible directions for management strategies of metropolitan sandy beaches.  相似文献   

18.
The objective of this paper is the structural and narrative reconstruction of representations of ‘nature’, ‘wildlife’ and ‘landscape’, held by rural residents of the Dadia Forest Reserve. Data collection involved in-depth interviews. Employing a social representations’ approach, we recovered representational elements that are expected in the case of rural belief systems, such as negative dispositions towards wolves and foxes, as well as elements of an urban adherence, such as nature’s independence. Representational elements refer to visual aspects of the countryside, which seem compatible with the figurative nucleus of the rural idyll. Concerning ‘wildlife’, residents focused on vultures, which comprise the main tourist attraction of the reserve. Scientific knowledge adds to the complexity of the narrative schema, which corresponds to the representation of ‘wildlife’. Interviewees perceived the rural landscape as an interface between the natural and the human-conditioned environment. Our study shows that interviewees make no reference to environmental conservation or quality of life issues, as it could be expected according to relatively wide definitions of the term ‘environmentalism’. Environmental messages reinforced by ecotourism development seem to be recalled primarily in terms of their compatibility with the perceived economic benefit of local people. Despite ecotourism development, representational elements that diverge from a tourist version of ‘nature’, ‘wildlife’ and ‘landscape’ were not pronounced within rural belief-systems. Further interventions within the study area are needed, in order to address a variety of topics under the environmental conservation discourse and raise the environmental awareness of rural residents.  相似文献   

19.
    
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20.
    
Conflicts over natural resource use and management often arise where groups have different goals or priorities. The media can play an important dual role in these conflicts; article content might offer insights about public opinion, whilst media may shape debates and how issues are perceived by the public and decision-makers. Wildlife farming is a contentious conservation tool attracting the attention of worldwide media, and associated conflicts among different interest groups may undermine its applicability. We investigated the media’s portrayal of the Cayman Turtle Farm (CTF), a facility in the Cayman Islands which breeds green sea turtles (Chelonia mydas) for human consumption, to investigate how the media presents information about wildlife farming (i.e. framing), consider its potential roles influencing conflicts and explore how it can be used for conservation conflict management. Content analysis was used to compare framing, article valence, and stakeholder representation in 634 newspaper articles from the international and local media. These media stories were framed in terms of: tourism, conflict, conservation, culture/community, management, and utilisation. International articles most often described CTF as a tourism facility. However, during a media campaign by an international animal welfare group, CTF was also often depicted as a source of controversy. Trade in turtle products was mostly debated in older articles. Local media mainly had a financial focus. Conflict framing was associated with a negative article valence, and conflict framed articles were significantly more likely to contain no conservation information. Mentions of environmental interest groups were significantly associated with negative articles, whereas academics were significantly more likely to be mentioned in positive articles. Conservationists must consider stakeholder objectives from the outset of interventions and be aware of the multiple roles the media might play. Media analysis and effectively harnessing the potential of media outlets should be considered as tools for managing conservation conflicts.  相似文献   

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