|
|
|
|
|
| Egan, Dave; ; Dave.Egan@nau.edu. |
| I provide a synthesis of the papers in the Special Issue, The Conservation and Restoration of Old Growth in Frequent-fire Forests of the American West. These papers—the product of an Old Growth Writing Workshop, held at Northern Arizona University in Flagstaff, Arizona on 18–19 April 2006—represent the ideas of 25 workshop participants who argue for a new attitude toward managing old growth in the frequent-fire forests of the American West. Unlike the lush, old-growth rainforests of the Pacific Northwest, the dry, frequent-fire forests of the western United States evolved with surface fires that disturbed the system with such regularity that young trees were almost always killed. When saplings did survive, they grew beyond the... |
| Tipo: Peer-Reviewed article |
Palavras-chave: Adaptive cycle definitions of old growth forest management forest policy old-growth forests social– Ecological system. |
| Ano: 2007 |
|
| |
|
| |
|
|
| Cumming, Graeme S.; Percy FitzPatrick Institute, DST/NRF Centre of Excellence, University of Cape Town; graeme.cumming@uct.ac.za. |
| Pathogen dynamics are inseparable from the broader environmental context in which pathogens occur. Although some pathogens of people are primarily limited to the human population, occurrences of zoonoses and vector-borne diseases are intimately linked to ecosystems. The emergence of these diseases is currently being driven by a variety of influences that include, among other things, changes in the human population, long-distance travel, high-intensity animal-production systems, and anthropogenic modification of ecosystems. Anthropogenic impacts on ecosystems have both direct and indirect (food-web mediated) effects. Therefore, understanding disease risk for zoonoses is a social–ecological problem. The articles in this special feature focus on... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Disease; Framework; Health; Influenza; Pathogen; Resilience; Social– Ecological system. |
| Ano: 2010 |
|
| |
|
| |
|
|
| Hagerman, Shannon M; Institute for Resources, Environment and Sustainability, University of British Columbia; University of Washington, Climate Impacts Group; hshannon@interchange.ubc.ca; Dowlatabadi, Hadi; University of British Columbia; Resources for the Future; Carnegie Mellon University; hadi.d@ubc.ca; Satterfield, Terre; University of British Columbia; satterfd@interchange.ubc.ca. |
| Human and ecological elements of resource management systems co-adapt over time. In this paper, we examine the drivers of change in forest management policy in British Columbia since 1850. We asked: How has a set of system attributes changed over time, and what drivers contributed to change when it occurred? We simultaneously examined a set of three propositions relating to drivers and dynamics of policy change. We find that factors contributing to the level of impacts, like technology, changed substantially over time and had dramatic impacts. In partial contrast, the institutions used to exercise control (patterns of agency and governance) remained the same until relatively recently. Other system attributes remained unchanged (e.g., the concept of... |
| Tipo: Peer-Reviewed Synthesis |
Palavras-chave: British Columbia; Change; Drivers; Forest management; Global change; Historical analysis; Science and policy; Social– Ecological system; Uncertainty. |
| Ano: 2010 |
|
| |
|
|
|
