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Full-Text Articles in Environmental Sciences

Food Sovereignty: An Alternative Paradigm For Poverty Reduction And Biodiversity Conservation In Latin America, M. Jahi Chappell, Hannah Wittman, Christopher M. Bacon, Bruce G. Ferguson, Luis García Barrios, Raúl García Barrios, Daniel Jaffee, Jefferson Lima, V. Ernesto Méndez, Helda Morales, Lorena Soto-Pinto, John Vandermeer, Ivette Perfecto Nov 2013

Food Sovereignty: An Alternative Paradigm For Poverty Reduction And Biodiversity Conservation In Latin America, M. Jahi Chappell, Hannah Wittman, Christopher M. Bacon, Bruce G. Ferguson, Luis García Barrios, Raúl García Barrios, Daniel Jaffee, Jefferson Lima, V. Ernesto Méndez, Helda Morales, Lorena Soto-Pinto, John Vandermeer, Ivette Perfecto

College of Agriculture and Life Sciences Faculty Publications

Strong feedback between global biodiversity loss and persistent, extreme rural poverty are major challenges in the face of concurrent food, energy, and environmental crises. This paper examines the role of industrial agricultural intensification and market integration as exogenous socio-ecological drivers of biodiversity loss and poverty traps in Latin America. We then analyze the potential of a food sovereignty framework, based on protecting the viability of a diverse agroecological matrix while supporting rural livelihoods and global food production. We review several successful examples of this approach, including ecological land reform in Brazil, agroforestry, milpa, and the uses of wild varieties in …


Parental Environments And Interactions With Conspecifics Alter Salinity Tolerance Of Offspring In The Annual Medicago Truncatula, Brenna M. Castro, Ken S. Moriuchi, Maren L. Friesen, Mounawer Badri, Sergey V. Nuzhdin, Sharon Y. Strauss, Douglas R. Cook, Eric Von Wettberg Sep 2013

Parental Environments And Interactions With Conspecifics Alter Salinity Tolerance Of Offspring In The Annual Medicago Truncatula, Brenna M. Castro, Ken S. Moriuchi, Maren L. Friesen, Mounawer Badri, Sergey V. Nuzhdin, Sharon Y. Strauss, Douglas R. Cook, Eric Von Wettberg

College of Agriculture and Life Sciences Faculty Publications

Summary: Based on expectations of the stress-gradient hypothesis for conspecific interactions, stress-sensitive genotypes may be able to persist in stressful environments when positive interactions between individuals occur under stressful environments. Additionally, we test how parental environmental effects alter responses to stress and outcomes of conspecific interactions in stress. While the stress-gradient hypothesis focuses on plant growth, earlier flowering may provide stress avoidance in short-lived organisms. We studied responses to soil salinity and conspecific neighbour using genotypes of Medicago truncatula (Fabaceae) originating from saline or non-saline environments, utilizing seeds from parental plants grown in saline or non-saline environments. During the early …


Payments For Ecosystem Services And The Fatal Attraction Of Win-Win Solutions, R. Muradian, M. Arsel, L. Pellegrini, F. Adaman, B. Aguilar, B. Agarwal, E. Corbera, D. Ezzine De Blas, J. Farley, G. Froger, E. Garcia-Frapolli, E. Gómez-Baggethun, J. Gowdy Jul 2013

Payments For Ecosystem Services And The Fatal Attraction Of Win-Win Solutions, R. Muradian, M. Arsel, L. Pellegrini, F. Adaman, B. Aguilar, B. Agarwal, E. Corbera, D. Ezzine De Blas, J. Farley, G. Froger, E. Garcia-Frapolli, E. Gómez-Baggethun, J. Gowdy

College of Agriculture and Life Sciences Faculty Publications

In this commentary we critically discuss the suitability of payments for ecosystem services and the most important challenges they face. While such instruments can play a role in improving environmental governance, we argue that over-reliance on payments as win-win solutions might lead to ineffective outcomes, similar to earlier experience with integrated conservation and development projects. Our objective is to raise awareness, particularly among policy makers and practitioners, about the limitations of such instruments and to encourage a dialogue about the policy contexts in which they might be appropriate. © 2013 Wiley Periodicals, Inc.


Multifaceted Value Profiles Of Forest Owner Categories In South Sweden: The River Helge Å Catchment As A Case Study, Gustav Richnau, Per Angelstam, Sviataslau Valasiuk, Lyudmyla Zahvoyska, Robert Axelsson, Marine Elbakidze, Joshua Farley, Ingemar Jönsson, Ihor Soloviy Mar 2013

Multifaceted Value Profiles Of Forest Owner Categories In South Sweden: The River Helge Å Catchment As A Case Study, Gustav Richnau, Per Angelstam, Sviataslau Valasiuk, Lyudmyla Zahvoyska, Robert Axelsson, Marine Elbakidze, Joshua Farley, Ingemar Jönsson, Ihor Soloviy

College of Agriculture and Life Sciences Faculty Publications

Forest landscapes provide benefits from a wide range of goods, function and intangible values. But what are different forest owner categories' profiles of economic use and non-use values? This study focuses on the complex forest ownership pattern of the River Helge å catchment including the Kristianstad Vattenrike Biosphere Reserve in southern Sweden. We made 89 telephone interviews with informants representing the four main forest owner categories. Our mapping included consumptive and non-consumptive direct use values, indirect use values, and non-use values such as natural and cultural heritage. While the value profiles of non-industrial forest land owners and municipalities included all …


Spider Fauna Of Semiarid Eastern Colorado Agroecosystems: Diversity, Abundance, And Effects Of Crop Intensification, Lauren M. Kerzicnik, Frank B. Peairs, Paula E. Cushing, Michael L. Draney, Scott C. Merrill Feb 2013

Spider Fauna Of Semiarid Eastern Colorado Agroecosystems: Diversity, Abundance, And Effects Of Crop Intensification, Lauren M. Kerzicnik, Frank B. Peairs, Paula E. Cushing, Michael L. Draney, Scott C. Merrill

College of Agriculture and Life Sciences Faculty Publications

Spiders are critical predators in agroecosystems. Crop management practices can influence predator density and diversity, which, in turn, can influence pest management strategies. Crop intensification is a sustainable agricultural technique that can enhance crop production although optimizing soil moisture. To date, there is no information on how crop intensification affects natural enemy populations, particularly spiders. This study had two objectives: to characterize the abundance and diversity of spiders in eastern Colorado agroecosystems, and to test the hypothesis that spider diversity and density would be higher in wheat (Triticum aestivum L.) in crop-intensified rotations compared with wheat in conventional rotations. We …