To promote biodiversity, a diverse landscape is necessary. Structural change in agriculture and increasing cost pressure have led to the trend of fewer farms and larger farming units with less diversity. Reversing this trend is a societal task that requires a willingness to make sacrifices. For...

The world has pledged to protect 30 percent of its land and waters by 2030 to halt the rapid deterioration of critical ecosystems. We summarize the state of knowledge about the impacts of protected area policies, with a focus on deforestation and vegetation cover. We discuss critical issues...

The European Union designates 26% of its landmass as a protected area, limiting economic development to favor biodiversity. This paper uses the staggered introduction of protected-area policies between 1985 and 2020 to study the selection of land for protection and the causal effect of...

We analyze a dynamic and stochastic ecological-economic model of grazing management in semi-arid rangelands. The non-equilibrium ecosystem is driven by stochastic precipitation. A risk averse farmer chooses a grazing management strategy under uncertainty such as to maximize expected utility from...

We analyze a dynamic and stochastic ecological-economic model of grazing management in semi-arid range lands. The non-equilibrium ecosystem is driven by stochastic precipitation. A risk averse farmer chooses a grazing management strategy under uncertainty such as to maximize expected utility...

Studying the sustainable use of ecosystem services under uncertainty requires the consideration of the stochastic dynamics of the system under study, risk and time preferences, risk management strategies and normative views pertaining to sustainability. To gather this information for an...

In this paper I analyze the 'Nitrogen Paradox' stated by Robert Allen in his interpretation of the English Agricultural Revolution as an adaptive response to the agro-climatic impacts of the last phase of the Little Ice Age. The colder and more humid climate during the second half of the 17th...

Land registration and titling in Africa has been seen as a means of legal empowerment of the poor that can protect smallholders' and pastoralists' rights of access to land and other land-based resources. Land registration is also on the ethnojustice agenda in parts of Africa and beyond. Yet...

Increasing food demand will most likely be met with agricultural intensification and land clearing, exacerbating environmental consequences associated with food supply. The mechanisms and trade-offs between agriculture and the environment are heterogeneous and not well understood, yet key to...

Do transgenic crops cause agrobiodiversity erosion? We hypothesize that they increase productivity and reduce production risk and may therefore reduce farmer demand for on-farm varietal diversity, especially when only a few transgenic varieties are available. We also hypothesize that varietal...