Search

Air pollution is one of the most severe environmental problems that Mexico is currently facing. The objective of this paper is to quantify the most relevant socioeconomic driving forces behind air polluting emissions and, more specifically, 7 local pollutants in Mexico. We do so in a multilevel version of the Stochastic Impacts by Regression on Population, Affluence and Technology (STIRPAT) model that accounts for the spatial heterogeneity at the municipal level across the country. The results show that the most relevant variables to determine the emissions of atmospheric pollutants are the population, the harvested area and the number of cars, while technological development helps to mitigate such emissions. The ecological elasticities are, in all cases, smaller than one. Our purpose is to provide quantitative information about these socioeconomic driving forces of air deterioration as a basis to establish some recommendations for environmental policy decision-making. [ABSTRACT FROM AUTHOR]

Public surveys can be valuable tools to collect information on wildlife distribution. Our objective was to improve the knowledge on the distribution and expanding areas of the Egyptian mongoose (Herpestes ichneumon) in central Spain by using an on‐line questionnaire to hunters. We assessed the reliability of information that hunters provided by comparing it with reports from wildlife professionals. Our results show a high overall congruence but significantly different information provided by hunters and professionals on the distribution of the Egyptian mongoose, suggesting that both sources provide unique data for the management of non‐game species. For example, hunters reported greater mongoose presence than professionals in areas to the east of Toledo and Ciudad Real provinces, for the whole distribution and core area of the species, suggesting that hunters could help to detect other areas where the species exists. Overall, our findings stress the importance of engaging hunters in wildlife conservation, as they can share valuable information on wildlife species, including those that are not hunted. [ABSTRACT FROM AUTHOR]

Simple Summary: Local communities living on the edge of protected areas often experience negative impacts on their livelihoods due to wildlife. These situations threaten support for long-term conservation of wildlife and wild habitats so a key for conservation sustainability should be based on implementing socially accepted and economically sustainable mitigation practices. For successful design and implementation of mitigation strategies, it is vital to engage local communities and understand their preferences and previous experiences. In this study, we present a choice experiment as a tool to analyze local farmer preferences for the most common farm-based solutions to reduce African elephant crop damage. Results show that there are significant differences among responses triggered by farmers' previous experience with elephants and socioeconomic situation, with a marked spatial distribution among respondents. This methodology, based on a choice modeling approach considering the differential availability of resources and previous experience with elephants or other wildlife, is highly applicable, with small changes in other areas where wildlife competes with local communities for resources. This approach also represents a suitable instrument for identifying stakeholders' preferences in each specific context. Local communities surrounding wildlife corridors and natural reserves often face challenges related to human–wildlife coexistence. To mitigate the challenges and ensure the long-term conservation of wildlife, it is important to engage local communities in the design of conservation strategies. By conducting 480 face-to-face interviews in 30 villages along and adjacent to the Selous-Niassa Wildlife Corridor (Tanzania), we quantified farmers' preferences for farm-based measures to mitigate African elephant damage using choice experiments. Results show that farmers considered no action the least preferred option, revealing that they are open to trying different measures. The most preferred management strategy matched with the preferences of wildlife rangers in the area, suggesting low concern about the potential conflicts between stakeholders. However, a latent class model suggests that there are significant differences among responses triggered by farmers' previous experience with elephants, the intensity of the elephant damage, and the socioeconomic situation of the farmer. Results show a marked spatial distribution among respondents, highlighting the benefits of zone management as conflicts were found to be highly context dependent. Understanding the human dimension of conservation is essential for the successful planification and implementation of conservation strategies. Therefore, the development and broad utilization of methodologies to gather specific context information should be encouraged. [ABSTRACT FROM AUTHOR]

Studies covering the social valuation of ecosystem services (ES) are increasingly incorporating people's attitudes, which allows social heterogeneity to be identified. This is especially relevant in mountain areas, where diverse complex interactions occur among the environment, the socioeconomic system, and a wide variety of farming practices. In this context, we aimed to: (i) identify the attitudinal dimensions that build people views about the agrifood system; and (ii) analyse how these attitudinal dimensions influence the value given to ES delivered by mountain agroecosystems of two European countries. We conducted a survey with a sample of 1008 individuals evenly distributed in the Italian Alps and Spanish Mediterranean mountain areas to collect information on people's attitudes toward: (i) the economy and the environment; (ii) rural development and agricultural intensification; (iii) food quality, production, and consumption; and (iv) agricultural and environmental policies. The survey included a choice experiment to assess the value that individuals attach to the most relevant ES provided by mountain agroecosystems in these areas (i.e., landscape, biodiversity, quality local products, wildfires prevention and water quality). The results showed four common attitudinal dimensions, namely Economy over environment, Mass-Market distribution reliability, Agricultural productivism, and Environmentalism and rural lifestyle. These attitudinal dimensions resulted in six groups of respondents. Most groups positively valued an increase in the delivery of all the analysed ES, which suggests that agricultural policies which aim to promote ES are likely to receive social support in the study areas. However, the differing attitudinal dimensions underlying people's preferences may result in disagreements about the steps to be taken to achieve the desired increase in ES delivery. [ABSTRACT FROM AUTHOR]

Copyright of Conservation Biology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Shea products in Benin (West Africa) are produced in a low-developed agroindustry, but they are estimated to be the country’s third largest export. The nut harvesting and quality guaranteeing in the butter process can only be achieved through improvements in the value chain, thus making it more attractive for stakeholders. The aim of this paper is to provide keys to a better product valorization, obtain a significant increase in household incomes based on shea butter marketing opportunities, and offer competitive products at the local and regional markets. Different markets were designed to catch processors and consumers’ preferences for two improved shea products: butter and nuts in Northern Benin. An open-ended contingent valuation (CV) was applied, and the willingness to pay (WTP) and willingness to accept (WTA) were estimated by using a typical ordinary least squares (OLS) modelling approach. On local markets in Benin, the color, length, and weight of the nuts, as well as the color, smell, and texture of shea butter significantly influence, respectively, the processors’ willingness to accept and the consumers’ willingness to pay for a specific quality level. An increase in price would ensure the quality of the shea butter and would be covered by the premium to be paid by consumers. Certification design and the development of shea resources management and conservation programs should include ethnic preferences and consider gender, to avoid reducing women’s profits in the shea butter local market. [ABSTRACT FROM AUTHOR]

There are many possible strategies to promote naturalization in anthropogenic landscapes to mitigate global change effects. We combined large-scale databases available for continental Spain on: (1) distribution of breeding birds, (2) forest inventory stands, (3) land-use cover, (4) 18 global climate models recently developed at local scales, and (5) historical and genetically-based information on the distribution of natural versus planted pine forests, to analyze whether back to nature strategies may help to mitigate biodiversity loss due to climate change. We performed the analysis along environmental and ecological gradients of pine forests in Southern Europe. Models suggested that, naturalization strategies, in this case defined by the replacement of planted pine forests and eucalyptus forests by natural pine forests, could help to mitigate the expected loss of bird diversity due to climate change, but that mitigation efficiency will vary along environmental and ecological gradients. Maximum levels of diversity mitigation were predicted at intermediate levels of naturalization, with lower bird richness in areas where all pine forests were either planted or naturalized. Efficiency also varied spatially, given that both cold- and hot-spots of climate-driven bird diversity loss were identified. Transforming planted forest into natural forest is not a mitigation panacea, and additional regionally-adapted strategies may be identified to mitigate the expected biodiversity loss in forest ecosystems. [ABSTRACT FROM AUTHOR]

Since ancient times, Mediterranean pine forests have been habitat for human activity, providing a wide range of goods such as timber, seeds, resin and derived products. Among them, tar and resin have played an historical role on the interaction between human activity and forests. In Spain, the resin played an important role in the economic and social development in rural areas during 20th century. But after 1980, resin production plummeted and the virtual disappearance of resin tapping caused the abandonment of traditional forest activities and the subsequently losses of ecosystem forest services (provision, regulation and cultural). This paper deals with some of the ecosystem services provided by resin tapped pine forests and shows how the abandonment of this traditional forestry activity would lead to a loss of social welfare beyond the economic activity. Among these ecosystem services, special attention is paid to the biodiversity of the pine forests. For that purpose, a stratified vegetation sampling was conducted in the leading resin-tapping Spanish region. Ecological analysis was therefore compared with the social preferences for several attributes associated to resin-tapped pine forests in Spain, including the biodiversity of flora. [ABSTRACT FROM AUTHOR]

This article presents an analysis of internal validity in discrete choice experiments. Prior studies have analysed the importance of the order of attributes within a multiple choice context, but few have specifically analysed the importance of the location of the price attribute. The internal validity was analysed while considering variations in the position of the price attribute in the choice cards. Results show differences in the estimates of willingness to pay according to the price-location version used: at the beginning, in the middle or at the end of the choice card. [ABSTRACT FROM AUTHOR]

Climate change is gravely affecting forest ecosystems, resulting in large distribution shifts as well as in increasing infection diseases and biological invasions. Accordingly, forest management requires an evaluation of exposure to climate change that should integrate both its abiotic and biotic components. Here we address the implications of climate change in an emerging disease by analysing both the host species (Pinus pinaster, Maritime pine) and the pathogen’s (Fusarium circinatum, pitch canker) environmental suitability i.e. estimating the host’s risk of habitat loss and the disease`s future environmental range. We constrained our study area to the Spanish Iberian Peninsula, where accurate climate and pitch canker occurrence databases were available. While P. pinaster is widely distributed across the study area, the disease has only been detected in its north-central and north-western edges. We fitted species distribution models for the current distribution of the conifer and the disease. Then, these models were projected into nine Global Climate Models and two different climatic scenarios which totalled to 18 different future climate predictions representative of 2050. Based on the level of agreement among them, we created future suitability maps for the pine and for the disease independently, which were then used to assess exposure of current populations of P. pinaster to abiotic and biotic effects of climate change. Almost the entire distribution of P. pinaster in the Spanish Iberian Peninsula will be subjected to abiotic exposure likely to be driven by the predicted increase in drought events in the future. Furthermore, we detected a reduction in exposure to pitch canker that will be concentrated along the north-western edge of the study area. Setting up breeding programs is recommended in highly exposed and productive populations, while silvicultural methods and monitoring should be applied in those less productive, but still exposed, populations. [ABSTRACT FROM AUTHOR]

Context. Driven hunts exemplify the most representative form of big-game hunting in southern Europe. Aims. We analysed hunter preferences for driven hunts and the marginal willingness to pay for their characteristics. Methods. We conducted a discrete-choice experiment for driven hunts, taking into account the number of deer that could be hunted, the possibility of free-range wild-boar hunting, the presence of trophies, and other characteristics of driven hunts, such as congestion and travel time. Key results. The highest influential driven-hunt characteristic on the utility of big-game hunters is the presence of trophy specimens, whereas for the small-game hunter it would be free-range wild-boar hunting. Conclusions. Small-game hunters are reluctant to participate in the big-game market because of cultural factors and not because of budgetary restrictions. Implications. Wildlife management and marketing of driven hunts can be improved taking into account the hunter preferences. [ABSTRACT FROM AUTHOR]

Forest plantations are increasingly used as tools to restore local biodiversity. Measures aimed at making plantations more complex and similar to natural forests to preserve biodiversity are still under debate. In this paper, we compare the role of natural and planted Pinus spp. for the maintenance of regional forest bird diversity along large-scale ecological gradients in Southern Europe. We modelled the relative contribution of the extent of either natural or planted pine forests to explain the richness of pine-dwelling forest birds in 3950 sample units (10 km × 10 km cells) in peninsular Spain after controlling for the potential effects of geographical variables, environmental factors, surrounding land-uses, forest cover and vegetation structure within pine forests. Planted pine forests maintained less pine-dwelling forest bird species than did natural pine forests after controlling for confounding variables and structural differences. Such differences may be due to the time lags involved in forest bird community assembly. Regional and local drivers explaining the regional bird species richness varied among pine species, either natural or planted. Management recommendations to increase bird diversity should not be based on just mimicking natural pine forest structure as quickly as possible. Rather, specific practices should be developed locally together with the maintenance of unexploited natural stands for both reference and conservation of the results of the temporal component of community assembly. [ABSTRACT FROM AUTHOR]

This article presents an econometric approach to modeling uncertainty, unwillingness to pay, and protest behavior in contingent valuation studies. For that purpose, a mixture model with sample selection is developed for a multiple-bounded uncertainty elicitation format. The proposed theoretical framework is applied to evaluate the social welfare impact of implementing a sustainable rural development program. Results show that a 'naive' analytical approach that excludes protesters from the analysis would result in significantly higher willingness to pay estimates for those individuals who favor the implementation of the program and agree to reveal their true reservation prices. [ABSTRACT FROM AUTHOR]

Copyright of Regional Studies is the property of Routledge and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This article reports on an economic valuation study of alternative fire prevention programs in the province of Málaga, southern Spain. The main aim of this study was to explore the social preferences for several forest fire prevention management issues. Fuel break programs were presented that differed in terms of cleaning technique (controlled grazing, prescribed burning and mechanical treatments), design (from traditional linear unshaded fire breaks to more landscape and environmentally friendly structures, such as shaded fuel breaks) and density (linked to annual burnt area). Results show that the population was clearly interested in the potential of the proposed programs to reduce fire. Lessons learnt from this study could be relevant for the development of fire prevention policies and specific prevention campaigns in Mediterranean forests. This article presents an economic valuation study of several aspects related to the management of fuel break networks. It shows how citizens' welfare is influenced by eventual changes in fuel break management programs that have to do with the cleaning techniques employed, the design and overall, with the potential to reduce fire risk. [ABSTRACT FROM AUTHOR]

Personality plays a role in human behavior, and thus can influence consumer decisions on environmental goods and services. This paper analyses the influence of the big five personality dimensions (extraversion, agreeableness, conscientiousness, neuroticism and openness) in a discrete choice experiment dealing with preferences for the development of an environmental program for forest management in Spain. For this purpose, a reduced version of the Big Five Inventory survey (the BFI-10) is implemented. Results show a positive effect of openness and extraversion and a negative effect of agreeableness and neuroticism in consumers' preferences for this environmental program. Moreover, results from a latent class model show that personal traits help to explain preference heterogeneity. [ABSTRACT FROM AUTHOR]

Understanding the complex process of climate change implies the knowledge of all possible determinants of CO emissions. This paper studies the influence of several institutional determinants on CO emissions, clarifying which variables are relevant to explain this influence. For this aim, Genetic Programming and Artificial Neural Networks are used to find an optimal functional relationship between the CO emissions and a set of historical, economic, geographical, religious, and social variables, which are considered as a good approximation to the institutional quality of a country. Besides this, the paper compares the results using these computational methods with that employing a more traditional parametric perspective: ordinary least squares regression (OLS). Following the empirical results of the cross-country application, this paper generates new evidence on the binomial institutions and CO emissions. Specifically, all methods conclude a significant influence of ethnolinguistic fractionalization (ETHF) on CO emissions. Copyright © 2009 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]