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1.
Proc Natl Acad Sci U S A ; 119(11): e2107662119, 2022 03 15.
Artigo em Inglês | MEDLINE | ID: mdl-35245152

RESUMO

SignificanceTourism accounts for roughly 10% of global gross domestic product, with nature-based tourism its fastest-growing sector in the past 10 years. Nature-based tourism can theoretically contribute to local and sustainable development by creating attractive livelihoods that support biodiversity conservation, but whether tourists prefer to visit more biodiverse destinations is poorly understood. We examine this question in Costa Rica and find that more biodiverse places tend indeed to attract more tourists, especially where there is infrastructure that makes these places more accessible. Safeguarding terrestrial biodiversity is critical to preserving the substantial economic benefits that countries derive from tourism. Investments in both biodiversity conservation and infrastructure are needed to allow biodiverse countries to rely on tourism for their sustainable development.


Assuntos
Biodiversidade , Desenvolvimento Econômico , Turismo , Conservação dos Recursos Naturais , Costa Rica , Humanos , Recreação
2.
Environ Manage ; 66(6): 1012-1023, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-33037896

RESUMO

The establishment of national parks in Brazil has been made based on a history of conflicts with local populations living within the limits or buffer zones of protected areas. These conflicts begin with disputes over territorial ownership. They affect local livelihoods, access to and use of space and natural resources, and create power asymmetries. In response to these conflicts, the Federal Conservation Agency has put forward norms that guarantee inclusive arenas for local people to take part in negotiations with park managers. In this study, environmental conflicts caused by the implementation of parks overlapping local population territories are analyzed aiming to understand their role as mechanisms promoting institutional changes. We collected data from two communities that overlap the Serra da Bocaina National Park through interviews, workshops, and direct observations. For each community, we characterized conflicts involving the community and Park officers. We identified consequences to the community's livelihoods and analyzed their influence on institutional change. The results suggest that one community responded to conservation conflicts through actions towards negotiation and collaboration with the national park. The other community promoted changes in agricultural production methods and sought new markets as a strategy for staying in the territory. Conflicts are effective as a mechanism for institutional changes, as local actors articulate with autonomous organizations at different levels. We highlight the importance of a continuous documentation on conflicts and their consequences to rural livelihoods in both communities and conflict management actions taken by the Park in the long term.


Assuntos
Dissidências e Disputas , Parques Recreativos , Agricultura , Brasil , Conservação dos Recursos Naturais , Humanos
3.
Artigo em Inglês | MEDLINE | ID: mdl-31978999

RESUMO

In the context of climate change, a nutritional transition, and increased pressures to migrate internally and internationally, this study examined the relationship between seasonal food insecurity and demographic, socioeconomic, and agricultural production factors among small-scale subsistence farmers in rural northern Honduras. Anchored by a partnership with the Fundación para la Investigación Participativa con Agricultores de Honduras (FIPAH) and the Yorito Municipal Health Centre, a cross-sectional household survey was administered in Yorito, Honduras, in July 2014. The study population included 1263 individuals from 248 households across 22 rural communities. A multivariate mixed effects negative binomial regression model was built to investigate the relationship between the self-reported number of months without food availability and access from subsistence agriculture in the previous year (August 2013-July 2014) and demographic, socioeconomic, and agricultural production variables. This study found a lengthier 'lean season' among surveyed household than previously documented in Honduras. Overall, 62.2% (95% confidence interval (CI): [59.52, 64.87]) of individuals experienced at least four months of insufficient food in the previous year. Individuals from poorer and larger households were more likely to experience insufficient food compared to individuals from wealthier and smaller households. Additionally, individuals from households that produced both maize and beans were less likely to have insufficient food compared to individuals from households that did not grow these staple crops (prevalence ratio (PR) = 0.83; 95% CI: [0.69, 0.99]). Receiving remittances from a migrant family member did not significantly reduce the prevalence of having insufficient food. As unpredictable crop yields linked to climate change and extreme weather events are projected to negatively influence the food security and nutrition outcomes of rural populations, it is important to understand how demographic, socioeconomic, and agricultural production factors may modify the ability of individuals and households engaged in small-scale subsistence agriculture to respond to adverse shocks.


Assuntos
Agricultura , Abastecimento de Alimentos , População Rural , Estudos Transversais , Feminino , Honduras , Humanos , Masculino , Estações do Ano , Classe Social , Fatores Socioeconômicos
4.
Sci Adv ; 3(1): e1600946, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28116351

RESUMO

Nonhuman primates, our closest biological relatives, play important roles in the livelihoods, cultures, and religions of many societies and offer unique insights into human evolution, biology, behavior, and the threat of emerging diseases. They are an essential component of tropical biodiversity, contributing to forest regeneration and ecosystem health. Current information shows the existence of 504 species in 79 genera distributed in the Neotropics, mainland Africa, Madagascar, and Asia. Alarmingly, ~60% of primate species are now threatened with extinction and ~75% have declining populations. This situation is the result of escalating anthropogenic pressures on primates and their habitats-mainly global and local market demands, leading to extensive habitat loss through the expansion of industrial agriculture, large-scale cattle ranching, logging, oil and gas drilling, mining, dam building, and the construction of new road networks in primate range regions. Other important drivers are increased bushmeat hunting and the illegal trade of primates as pets and primate body parts, along with emerging threats, such as climate change and anthroponotic diseases. Often, these pressures act in synergy, exacerbating primate population declines. Given that primate range regions overlap extensively with a large, and rapidly growing, human population characterized by high levels of poverty, global attention is needed immediately to reverse the looming risk of primate extinctions and to attend to local human needs in sustainable ways. Raising global scientific and public awareness of the plight of the world's primates and the costs of their loss to ecosystem health and human society is imperative.


Assuntos
Cercopithecidae , Ecossistema , Extinção Biológica , Animais
5.
Environ Res Lett ; 10(11)2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26692890

RESUMO

Studies investigating migration as a response to climate variability have largely focused on rural locations to the exclusion of urban areas. This lack of urban focus is unfortunate given the sheer numbers of urban residents and continuing high levels of urbanization. To begin filling this empirical gap, this study investigates climate change impacts on U.S.-bound migration from rural and urban Mexico, 1986-1999. We employ geostatistical interpolation methods to construct two climate change indices, capturing warm and wet spell duration, based on daily temperature and precipitation readings for 214 weather stations across Mexico. In combination with detailed migration histories obtained from the Mexican Migration Project, we model the influence of climate change on household-level migration from 68 rural and 49 urban municipalities. Results from multilevel event-history models reveal that a temperature warming and excessive precipitation significantly increased international migration during the study period. However, climate change impacts on international migration is only observed for rural areas. Interactions reveal a causal pathway in which temperature (but not precipitation) influences migration patterns through employment in the agricultural sector. As such, climate-related international migration may decline with continued urbanization and the resulting reductions in direct dependence of households on rural agriculture.

6.
Popul Space Place ; 19(5): 558-579, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-31031573

RESUMO

This paper investigates the factors that motivate decisions of settler colonists to engage in off-farm employment (OFE) in the Northern Ecuadorian Amazon (NEA). Overall, OFE, as a type of population mobility, may increasingly become a dominant demographic factor in rural frontier regions. Although OFE decisions are primarily a matter of individual choice, factors associated with the farm household and the local community also play key roles in this decision-making. This paper applies a multilevel conceptual framework and uses a multinomial, multilevel statistical model to study OFE in the NEA in 1999 as a result of factors at the individual, farm household, and community levels. The results show important differences between OFE participation choices in personal characteristics, human capital, farm household life cycle, land use, land management, farm environmental conditions, transportation accessibility, community size, and structure of local labor markets. The paper also identifies the effects of policy-relevant variables on choices to engage in OFE in local community, other rural, or urban areas of destination.

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