Hydrological and environmental variables outperform spatial factors in structuring species,trait composition,and beta diversity of pelagic algae

There has been increasing interest in algae‐based bioassessment, particularly, trait‐based approaches are increasingly suggested. However, the main drivers, especially the contribution of hydrological variables, of species composition, trait composition, and beta diversity of algae communities are less studied. To link species and trait composition to multiple factors (i.e., hydrological variables, local environmental variables, and spatial factors) that potentially control species occurrence/abundance and to determine their relative roles in shaping species composition, trait composition, and beta diversities of pelagic algae communities, samples were collected from a German lowland catchment, where a well‐proven ecohydrological modeling enabled to predict long‐term discharges at each sampling site. Both trait and species composition showed significant correlations with hydrological, environmental, and spatial variables, and variation partitioning revealed that the hydrological and local environmental variables outperformed spatial variables. A higher variation of trait composition (57.0%) than species composition (37.5%) could be explained by abiotic factors. Mantel tests showed that both species and trait‐based beta diversities were mostly related to hydrological and environmental heterogeneity with hydrological contributing more than environmental variables, while purely spatial impact was less important. Our findings revealed the relative importance of hydrological variables in shaping pelagic algae community and their spatial patterns of beta diversities, emphasizing the need to include hydrological variables in long‐term biomonitoring campaigns and biodiversity conservation or restoration. A key implication for biodiversity conservation was that maintaining the instream flow regime and keeping various habitats among rivers are of vital importance. However, further investigations at multispatial and temporal scales are greatly needed.     

The complexity of the conservation-development nexus in Central African national parks and the perceptions of local populations

Conservation programmes of recent decades aimed to adopt an approach that addresses biodiversity conservation goals through socio-economic tools and to better integrate the human dimension into biodiversity conservation. Yet, to analyse this complex conservation-development nexus, studying conservation perceptions of local populations are crucial to understand the dynamics and establish sound conservation-development management policies. Therefore, we aim to identify the key determinants of conservation perceptions in the Central African context in order to implement successful local and regional conservation strategies. Conservation perceptions of two national parks’ adjacent populations were examined through household surveys, adapted from the Poverty-Environment Network (PEN), in Rwanda and Republic of Congo. Outcomes were statistically analysed to identify the most important factors affecting perceptions about conservation measures. Using a nonlinear canonical correlation analysis, we found that economic factors (e.g. salary, savings, cattle size) and education positively affect conservation perceptions while ecosystem-dependent factors such as hunting and gathering other non-timber forest products have negative effects. Though, we identified a significant difference between two sites, whereby, conservation perceptions are negatively affected by bushmeat factors in Republic of Congo, and NTFP in Rwanda. In addition, our study showed that resource use and rights play a major role in communities’ perceptions and that revenue-sharing projects have a key impact on the perceptions. To ensure sound conservation and development measures, revenue-sharing schemes focusing on material benefits and alternative livelihoods may provide the best approach if participation of communities in the decision-making process is ensured. In this optic, improving education levels will raise awareness and positive perceptions of conservation measures. Development measures should target poor households as they appear to be more conservation-adverse. We conclude that in depth research on local demands for ecosystem products, relationships among stakeholders and community decision power are crucial factors to understand the complexity of the conservation-development nexus.     

Perceived human–elephant conflict and its impact for elephant conservation in northern Congo

Human–elephant conflict is a common conservation problem throughout Africa, but poorly studied where forest elephants (Loxodonta cyclotis) occur. Here, we investigated people's perceptions towards the impact of elephants around Nouabalé‐Ndoki National Park, northern Congo. We aimed to understand the perceptual differences amongst residents of four villages that varied substantially in the degree of conservation benefits received. We used a multivariate analysis to investigate how socio‐economic variables, such as employment, wealth, education and ethnicity, influenced perceptions. Using both quantitative and qualitative data, we found that the majority of respondents experienced elephant impacts, mainly through crop raiding. Residents of the village where the local conservation project is based had significantly more positive perceptions of elephants, whereas perceptions of farmers were mostly negative. We identified some misunderstandings regarding the responsibilities of elephant impact mitigation regarding benefit sharing, stakeholder involvement and lawbreaking, but also willingness to apply mitigation measures. To mitigate the prevalent impact of elephants, a comprehensive approach of measuring impact, exploring community‐based mitigating strategies and understanding of the root causes of the conflict is crucial. We propose a long‐term programme within logging concessions organizing groups of farmers to cooperate on mitigation techniques and explore alternative incomes.     

Ecological drivers of avian diversity in a subtropical landscape: Effects of habitat diversity,primary productivity and anthropogenic disturbance

Understanding the roles of ecological drivers in shaping biodiversity is fundamental for conservation practice. In this study, we explored the effects of elevation, conservation status, primary productivity, habitat diversity and anthropogenic disturbance (represented by human population density and birding history) on taxonomic, phylogenetic and functional avian diversity in a subtropical landscape in southeastern China. We conducted bird surveys using 1‐km transects across a total of 30 sites, of which 10 sites were located within a natural reserve. Metrics of functional diversity were calculated based on six functional traits (body mass, clutch size, dispersal ratio, sociality, diet and foraging stratum). We built simultaneous autoregression models to assess the association between the ecological factors and diversity of the local avian communities. Local avian diversity generally increased with increasing habitat diversity, human population density and primary productivity. We also detected phylogenetic and functional clustering in these communities, suggesting that the avian assemblages were structured mainly by environmental filtering, rather than interspecific competition. Compared with sites outside the natural reserve, sites within the natural reserve had relatively lower avian diversity but a higher level of phylogenetic heterogeneity.     

The Local Perception of Tropical Deforestation and its Relation to Conservation Policies in Los Tuxtlas Biosphere Reserve,Mexico

We examine the ways both deforestation and conservation are viewed by people of two villages with different ethnic composition located within the biosphere reserve of Los Tuxtlas, Mexico. The rain forest is considered to be important, since it provides many resources and environmental benefits. Residents do notice forest degradation, although deforestation is not one of their major concerns. In the mestizo village, 65% of interviewees indicated they felt responsible for deforestation, while only 30% of indigenous villagers felt the same. In both communities, nearly half the respondents see themselves as powerless to take actions to preserve the forest. We analyzed the management plan for the reserve in light of our results, and found authorities’ perceptions differ from that of local communities. This study emphasizes the lack of factual data and common goals for biodiversity conservation. Our work points to the urgency to build conservation efforts that involve the different social actors, who diverge in interests and views, particularly in countries like Mexico, where rich biodiversity regions are also broadly inhabited.     

四川马边大风顶自然保护区周边社区对当地自然保护的影响

采用参与式评估和KAP研究等方法,对马边县境内大风顶自然保护区周边社区的社会经济及居民生态保护意识和行为进行调查。结果表明,社区经济落后、人口增长、教育水平偏低的现状构成对保护区影响的主要因素,另外当地的传统观念及生活习惯也对保护区动植物存在一定影响。通过分析,结合当地情况,为社区及保护区将来的发展提出参考建议。     

Socioeconomic development shows positive links to the conservation efficiency of China's protected area network

While the protected area (PA) covers >15% of the planet's terrestrial land area and continues to expand, factors determining its effectiveness in conserving endangered species are being debated. We investigated the links between direct anthropogenic pressures, socioeconomic settings, and the coverage of vertebrate taxa by China's PA network, and indicated that high socioeconomic status and low levels of human pressure correlate with high species coverage, with threatened mammals more effectively conserved than reptiles or amphibians. Positive links between conservation outcomes and socioeconomic progress appear linked to local livelihood improvements triggering positive perceptions of local PAs—aided further by ecological compensation and tourism schemes introduced in wealthy areas and reinforced by continued positive conservation outcomes. Socioeconomic development of China's less developed regions might assist regional PA efficiency and achievement of the Kunming-Montreal Global Biodiversity Framework, while also addressing potential shortcomings from an insufficient past focus on socioeconomic impacts for biodiversity conservation.     

Factors influencing conservation attitudes of local people in Western Serengeti,Tanzania

Attitudinal studies are increasingly being adopted as tools for evaluating public understanding, acceptance and the impact of conservation interventions. The findings of these studies have been useful in guiding the policy interventions. Many factors affect conservation attitudes positively or negatively. The factors inspiring positive attitudes are likely to enhance the conservation objectives while those inducing negative attitudes may detrimentally undermine these objectives. The magnitude of the resultant effects of each particular factor is determined by the historical, political, ecological, socio-cultural and economic conditions and this may call for different management interventions. In this study we examined how conservation attitudes in western Serengeti are shaped by the following factors: level of conflicts with protected areas; wildlife imposed constraints (inadequate pasture, water, diseases, loss of livestock during migration, theft and depredation); participation in the community based project; and socio-demographic factors (age, education level, wealth, immigration, gender and household size). The results indicated that the level of conflicts, participation in the community based project, inadequate pasture, lack of water, diseases, wealth and education were important in shaping peoples’ attitudes. However, in a stepwise linear regression analysis, 59% of the variation in peoples’ attitudes was explained by three variables i.e., conflict level with protected areas, lack of water and participation in the community based project. In addition to these variables, level of education also contributed in explaining 51% of the variation in people’s attitude regarding the status of the game reserves. Five variables (lack of water, level of education, inadequate pasture, participation in the community based project and diseases) explained 12% of the variation in people’s attitude towards Serengeti National Park. The paper discusses the implications for conservation of these results and recommends some measures to realise effective conservation of wildlife resources.     

Seeing the Forest for the Trees: Integrated Conservation and Development Projects and Local Perceptions of Conservation in Madagascar

This paper explores local perceptions of internationally financed conservation and development projects in Madagascar and the success of these projects at influencing perceptions. Interviews, surveys, and focus group sessions were conducted in the peripheral zones of three Malagasy national parks: Ranomafana, Andohahela, and Masoala. Relevant questions explored community demographics, socioeconomic status, and local perceptions of the parks. The principal finding is that while a majority of people living in the peripheral zones do find conservation a valuable goal, they see it as a luxury they cannot afford. Despite their efforts and innovation, conservation and development projects have had a minimal impact on socioeconomic or associational life in the Ranomafana and Andohahela peripheral zones, and a significant but modest impact in the Masoala peripheral zone, by providing economic alternatives to destructive resource use. As a result, they are limited in their success at promoting conservation outcomes.     

北京市自然保护地生态效益及其影响因素

自然保护地是生物多样性富集区域,发挥着水源涵养、防风固沙等重要的生态效益。北京市共5类79处自然保护地,是首都重要生态屏障,但自然因素和人为干扰对自然保护地生态效益有着重要影响。核算了北京自然保护地的5种典型的生态效益,使用单因素方差分析比较了不同类型自然保护地生态效益的差异,并基于冗余分析法探究了2种自然因素(年均气温和年降水量)和4种人为因素(人口密度、建设用地比例、耕地比例和道路密度)对生态效益的影响。结果表明：(1)北京自然保护地总体生态效益：北京自然保护地生境质量高,生境质量指数均值高达0.88;其它4项可价值化的生态效益中,水源涵养价值最大,固碳价值最低。(2)各类自然保护地之间生态效益比较：除生境质量外,其它4个生态效益之和,自然保护区和森林公园显著高于其它3类自然保护地;湿地公园的生境质量显著低于其它4类保护地,而这4类保护地之间生境质量并无显著差异;从水源涵养的生态效益来看,风景名胜区和地质公园显著低于其它3类自然保护地。(3)人为干扰因素(影响水平为38.92%)对生态效益的影响程度远高于自然因素(影响水平为16.63%);防风固沙、水土保持和固碳效益主要受人为干扰...     

环境选择和扩散限制驱动温带森林土壤细菌群落的构建

环境选择和扩散限制是生态系统中生物群落构建的两个基本过程,而两者相对作用的大小因研究尺度、群落属性和类型等有所不同.目前对温带亚高山森林土壤微生物群落构建的驱动因子和机制尚缺乏了解.本文利用PCR-DGGE技术研究庞泉沟自然保护区内5种典型森林包括华北落叶松林、青杄林、白杄林、油松林以及桦树林的6个森林土壤细菌群落(Lp MC1、Lp MC2、Pw MC、Pm MC、Pt MC、BMC)的结构特征及其影响因素,分析细菌群落结构与环境因子的相关性,以及土壤因子、植被和空间因素对细菌群落结构的影响.结果表明:研究区各样地土壤细菌群落的结构和生物多样性具有显著差异,低海拔落叶松和油松土壤细菌群落多样性较高(20条带),白杄林土壤细菌群落(13条带)多样性最低,高海拔落叶松土壤细菌群落多样性最高;土壤环境因子,如pH、土壤含水量、总碳、总氮、土壤有机质、速效磷以及土壤酶活性与土壤细菌群落多样性和结构显著相关;样地土壤细菌群落的beta多样性与群落的空间距离呈显著相关,表明扩散限制对群落结构具有一定的影响;方差分解分析结果显示,6个样地细菌群落结构的驱动因素大小依次为土壤因子(0.27)、空间因素(0.19)和植被(0.15);将区域土壤微生物作为"源群落",微宇宙试验结果显示,土壤因子是细菌群落结构形成的主要驱动力(0.35),同时源群落丰富的物种多样性对微宇宙土壤细菌群落结构具有显著影响.总之,在局域尺度下,环境选择对温带森林土壤细菌群落结构动态和多样性发挥主导作用,地理距离对群落结构具有显著影响,即确定性过程和随机过程共同决定局域森林土壤细菌群落结构,前者占主导地位.对于土壤细菌群落而言,扩散群落的组成和结构受到源群落的多样性特征和环境因子的双重影响.     

Conflicts between humans over wildlife management: on the diversity of stakeholder attitudes and implications for conflict management

Conflicts involving wildlife are, in essence, often conflicts between human parties with differing wildlife management objectives. However, the study and management of wildlife conflicts often focuses on the ecological context without addressing disagreements between people over these objectives. This research uses quantitative approaches to examine actors’ views on a complex wildlife-related conflict: a raptor of conservation concern that impacts on game-bird management. Four dominant elements of the debate emerged from initial semi-structured interviews: perceptions of conflict related issues; perceptions of each other; perceived barriers to consensus within the debate; and assessment of proposed practical management solutions. A quantitative survey that built on these elements demonstrates the degree to which perceptions differ between groups and how local variation in these elements may be obscured in a regional or national level debate. The findings emphasise the importance of understanding the social issues involved in wildlife related conflicts if management aims are to be agreed and achieved.     

Towards harmonious conservation relationships: A framework for understanding protected area staff-local community relationships in developing countries

This paper conceptualises a framework for assessing protected area (PA)–community relationships and is premised on the view that positive PA–community relationships enhance conservation. A meta-synthesis of existing academic literature with a qualitative orientation was used to review the PA staff-community relationships, and data were analysed using an inductive qualitative approach. From a review of 105 published documents focusing on wildlife conservation, community involvement and PA–community relationships, it emerged that relationships are mostly influenced by attitudes. With the case of PA–community relationships, the question that arises is ‘whose attitude’? The paper proposes that both PA staff attitudes and community attitudes play an important role in shaping these relationships. Based on these findings, we propose a PA–community relationship framework that illuminates the human–wildlife interface as critical space in shaping conservation attitudes. In particular, four major factors affecting PA staff-community relationships were identified: (i) history of creation of the PAs focusing on forced relocation, and the fences and fines approach; (ii) benefits and costs associated with living closer to PAs; (iii) socio-demographic factors in which the influences of sex, age, level of education, number of years stayed in the village, experience accrued from working in PAs, household size, number of livestock, sources of income, and level of income; and (iv) community involvement in conservation-related developmental projects. We conclude that enhanced PA–community relationships promote wildlife conservation through participatory approaches and collaboration between PA staff and communities. We recommend for continued assessment and monitoring of PA staff and community relationships in order to allow for sustainable conservation especially in developing countries.     

What Is a “Community Perception” of REDD+? A Systematic Review of How Perceptions of REDD+ Have Been Elicited and Reported in the Literature

Reducing emissions from deforestation and forest degradation (REDD+) is expected to generate co-benefits and safeguard the interests of people who live in the forested regions where emissions are reduced. Participatory measurement, reporting and verification (PMRV) is one way to ensure that the interests of local people are represented in REDD+. In order to design and use PMRV systems to monitor co-benefits and safeguards, we need to obtain input on how local people perceive REDD+. In the literature, this is widely discussed as “community perceptions of REDD+.” We systematically reviewed this literature to understand how these perceptions have been assessed, focusing specifically on how individual perceptions have been sampled and aggregated into “community perceptions.” Using Google Scholar, we identified 19 publications that reported community perceptions of REDD+, including perceptions of its design, implementation, impacts, relationship with land tenure, and both interest and actual participation by local people. These perceptions were elicited through surveys of probability samples of the local population and interviews with purposively selected community representatives. Many authors did not provide sufficient information on their methods to interpret the reported community perceptions. For example, there was often insufficient detail on the selection of respondents or sampling methods. Authors also reported perceptions by unquantified magnitudes (e.g., “most people”, “the majority”) that were difficult to assess or compare across cases. Given this situation in the scholarly literature, we expect that there are even more severe problems in the voluminous gray literature on REDD+ not indexed by Google Scholar. We suggest that readers need to be cognizant of these issues and that publication outlets should establish guidelines for better reporting, requiring information on the reference population, sampling methods, and methods used to aggregate individual responses into “community perceptions.”     

国外生态旅游对当地社区生计的影响研究综述

生态旅游因具备实现生物多样性保护和减轻贫困双重目标的潜力,成为全球学术界关注的焦点。鉴于生态旅游在影响社区生计方面的研究争议,论文综览国外大量相关文献,在界定生态旅游内涵的基础上,从经济影响、社区参与、能力建设、社会文化和公共设施4个方面系统梳理国外生态旅游对目的地社区生计的影响。研究发现旅游发展对目的地生计的影响存在不确定性,社区资源控制权、旅游收益规模、地方介入旅游产业供应链能力、自身能力、旅游管理等因素对旅游扶贫效应起着关键性作用。最后,对当前研究展开评述并对未来研究提出三点展望,以期为中国未来生态旅游影响研究和生态旅游开发提供借鉴和指导。     

Management histories of Sumilon and Apo Marine Reserves, Philippines, and their influence on national marine resource policy

 The histories of management of the Sumilon and Apo marine reserves in the Philippines provide a stark contrast. Both began with marine conservation and education programs at the community level, initiated by the Marine Laboratory of Silliman University in 1973 at Sumilon, and in 1976 at Apo. At both islands community support for the “no take” reserve concept evolved gradually, via perceived benefits of increased local fish yields and income from tourism. However, Sumilon reserve has been fished down twice (in 1984,1992), and was still being fished in December 1998. Apo reserve has been protected from fishing successfully for 16 y (1982–1998). The management histories of these two marine reserves are the longest and most detailed available for coral reefs. Scientific data spanning 1976–1993 for Sumilon and 1980–1993 for Apo have provided some of the best available evidence of the utility of such reserves as management tools in coral reef fisheries. At Sumilon, collapse of reserve protection in 1984, after 9.5 y of restrictions on fishing, led to significant declines in reef fisheries yields in areas adjacent to the reserve. At Apo, continuous protection from 1982 to 1993 has led to consistent build up of fish in the reserve and some evidence that local fish yields have increased. The unique time series of scientific data obtained from Sumilon and Apo islands are the result of their distinct management histories. The greater success of management at Apo was due to community support for the reserve concept being actively maintained for the past 16 y. Socio-political factors caused the level of community support for the Sumilon reserve to wax and wane over this period. Both case histories have had a profound effect on marine resource management in the Philippines. As marine reserve models they had substantial influence on the design of the National Integrated Protected Area System (NIPAS). Policy now encourages co-management between the National government and local communities, with a strong emphasis on decentralization of decision making and recognition of local territorial use rights in fisheries. Accepted: 14 May 1999     

Predicting range shifts of Davidia involucrata Ball. under future climate change

Understanding and predicting how species will respond to climate change is crucial for biodiversity conservation. Here, we assessed future climate change impacts on the distribution of a rare and endangered plant species, Davidia involucrate in China, using the most recent global circulation models developed in the sixth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC6). We assessed the potential range shifts in this species by using an ensemble of species distribution models (SDMs). The ensemble SDMs exhibited high predictive ability and suggested that the temperature annual range, annual mean temperature, and precipitation of the driest month are the most influential predictors in shaping distribution patterns of this species. The projections of the ensemble SDMs also suggested that D. involucrate is very vulnerable to future climate change, with at least one‐third of its suitable range expected to be lost in all future climate change scenarios and will shift to the northward of high‐latitude regions. Similarly, at least one‐fifth of the overlap area of the current nature reserve networks and projected suitable habitat is also expected to be lost. These findings suggest that it is of great importance to ensure that adaptive conservation management strategies are in place to mitigate the impacts of climate change on D. involucrate.     

Evidence that vulture restaurants increase the local abundance of mammalian carnivores in South Africa

Vulture restaurants are used worldwide as a conservation tool to provide threatened vultures with a source of supplementary carrion free from anthropogenic contaminants such as poisons and veterinary drugs. While the impacts of supplementary feeding sites on ecosystem and scavenging community dynamics have been investigated in Europe, no information is currently available for southern Africa. This study presents evidence that providing supplementary carrion for vultures stimulated an increase in local abundance of two species of mammalian carnivores, the brown hyaena (Hyaena brunnea) and the black‐backed jackal (Canis mesomelas). These findings require that the wider impacts of providing supplementary carrion for conserving threatened species are fully investigated.     

Offshore renewable energy and nature conservation: the case of marine tidal turbines in Northern Ireland

The global demand for renewable energy continues to increase rapidly and with it the necessity to develop and test new technologies to deliver the power. Offshore renewable energy sources that harness wind, wave or tidal power are of major interest. Technological advances in these directions have not been matched by a clear understanding of the environmental impacts of the new devices, with most existing research concentrated on the impacts of offshore wind farms. Decisions often continue to be made without the support of a clear evidence base. Here we use an underwater tidal turbine, SeaGen, constructed and operated within the Strangford Lough marine protected area in Northern Ireland, as a case study to explore the potential impacts of the turbine as points of concern and argumentation in the decision-making processes. We use information obtained from official documents and one-to-one interviews with the main stakeholders. Our results demonstrate that during the construction and operation of the turbine the perceptions and views of different stakeholders sometimes disagreed but were often surprisingly similar in relation to both likelihood and intensity of the potential impacts of the turbine on marine biodiversity, ecosystem services and human well-being in general. The overall consensus of views was refined and evolved under an adaptive management approach over the 10 years of the discussions and decision-making processes. The results are discussed in relation to cumulative gains in knowledge, future arrays of many underwater turbines and multiple use of oceans within social ecological systems to maintain the conservation of marine biodiversity.     

How biotic interactions may alter future predictions of species distributions: future threats to the persistence of the arctic fox in Fennoscandia

Aim With climate change, reliable predictions of future species geographic distributions are becoming increasingly important for the design of appropriate conservation measures. Species distribution models (SDMs) are widely used to predict geographic range shifts in response to climate change. However, because species communities are likely to change with the climate, accounting for biotic interactions is imperative. A shortcoming of introducing biotic interactions in SDMs is the assumption that biotic interactions remain the same under changing climatic factors, which is disputable. We explore the performance of SDMs while including biotic interactions. Location Fennoscandia, Europe. Methods We investigate the appropriateness of the inclusion of biotic factors (predator pressure and prey availability) in assessing the future distribution of the arctic fox (Alopex lagopus) in Fennoscandia by means of SDM, using the algorithm MaxEnt. Results Our results show that the inclusion of biotic interactions enhanced the accuracy of SDMs to predict the current arctic fox distribution, and we argue that the accuracy of future predictions might also be enhanced. While the range of the arctic fox is predicted to have decreased by 43% in 2080 because of temperature‐related variables, projected increases in predator pressure and reduced prey availability are predicted to constrain the potential future geographic range of the arctic fox in Fennoscandia 13% more. Main conclusions The results indicate that, provided one has a good knowledge of past changes and a clear understanding of interactions in the community involved, the inclusion of biotic interactions in modelling future geographic ranges of species increases the predictive power of such models. This likely has far‐reaching impacts upon the design and implementation of possible conservation and management plans. Control of competing predators and supplementary feeding are suggested as necessary management actions to preserve the Fennoscandian arctic fox population in the face of climate change.