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A key challenge of ecosystem management is determining how to manage multiple ecosystem services across landscapes. Enhancing important provisioning ecosystem services, such as food and timber, often leads to tradeoffs between regulating and cultural ecosystem services, such as nutrient cycling, flood protection, and tourism. We developed a framework for(More)
Each World Resources Institute report represents a timely, scholarly treatment of a subject of public concern. WRI takes responsibility for choosing the study topics and guaranteeing its authors and researchers freedom of inquiry. It also solicits and responds to the guidance of advisory panels and expert reviewers. Unless otherwise stated, however, all the(More)
In recent years, geographic information systems (GIS) have become a powerful tool for mapping and assessing the provision of ecosystem services within a landscape. GIS can help land managers and conservationists visualize spatial and temporal patterns and changes in ecosystem services and estimate the potential impact from projected changes in land use or(More)
We sought to compare the abilities of the specialist Lepidoptera Pyrrhopyge thericles (Hesperiidae) and the generalist Periphoba arcaei (Saturniidae) to assimilate three highly cytotoxic compounds from their larval host plant, Vismia baccifera (Clusiaceae) and to determine whether either insect discriminated in its assimilation of the compounds that are(More)
Avant-propos et des domaines où la législation et la politique s'appliquent de manière spécifique. Les responsables de la planification du développement croient trop souvent que les actifs naturels dont dépend le développement (l'eau douce, la protection contre les risques naturels, la pollinisation, pour n'en citer que quelques-unes) seront toujours(More)
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