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| Kachergis, Emily J.; Bureau of Land Management, Denver, Colorado; emily.kachergis@gmail.com; Knapp, Corrine N.; Alaska Center for Climate and Policy; corrieknapp@yahoo.com; Fernandez-Gimenez, Maria E.; Department of Forest and Rangeland Stewardship, Colorado State University; Maria.Fernandez-Gimenez@colostate.edu; Ritten, John P.; Department of Agricultural and Applied Economics, University of Wyoming; John.Ritten@uwyo.edu; Pritchett, James G.; Department of Agricultural and Resource Economics, Colorado State University; James.Pritchett@colostate.edu; Parsons, Jay; Western Center for Integrated Resource Management, Colorado State University; Jay.Parsons@colostate.edu; Hibbs, Willow; Wyoming Game and Fish Department and USDA-NRCS; Willow.Hibbs@wy.usda.gov; Roath, Roy; Department of Forest and Rangeland Stewardship, Colorado State University; Roy.Roath@colostate.edu. |
| Building models is an important way of integrating knowledge. Testing and updating models of social-ecological systems can inform management decisions and, ultimately, improve resilience. We report on the outcomes of a six-year, multidisciplinary model development process in the sagebrush steppe, USA. We focused on creating state-and-transition models (STMs), conceptual models of ecosystem change that represent nonlinear dynamics and are being adopted worldwide as tools for managing ecosystems. STM development occurred in four steps with four distinct sets of models: (1) local knowledge elicitation using semistructured interviews; (2) ecological data collection using an observational study; (3) model integration using participatory workshops; and (4)... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptive management; Ecology; Ecosystem dynamics; Knowledge integration; Participatory research; Rangeland; Sagebrush steppe. |
| Ano: 2013 |
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| Pethybridge, H.; Daley, R.; Virtue, P.; Butler, E. C. V.; Cossa, Daniel; Nichols, P. D.. |
| Total mercury (Hg) concentrations and lipid composition data, including fatty acid profiles, for 61 midtrophic species (fish, cephalopods, crustaceans) collected from continental slope waters off south-east Australia were examined. Overall, Hg concentrations were greatest in fish (0.01-0.30 mu g g(-1) ww) (with highest content found in barracouta (Thyrsites atun) and whiptails (Coelorinchus fasciatus)), compared with cephalopods (0.01 and 0.17 mu g g(-1) ww) and crustaceans (<0.04 mu g g(-1) ww). Lipid composition varied between species and within habitat (mesopelagic, bathypelagic and benthic). Mean total lipid content ranged from 0.5 to 13.2% ww, and in most species was dominated by triacylglycerols and phospholipids. In fish and squid, fatty acids... |
| Tipo: Text |
Palavras-chave: Deep-sea; Ecosystem dynamics; Fatty acids; Lipids; Mercury; Mid-trophic prey; Mid-water. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00016/12685/9655.pdf |
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