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CFE agenda 100917
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CFE agenda 100917
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10/9/2017
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CFE minutes 100917
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on the conservation targets and goals, the projected <br />climate change impacts, the location of the project, <br />the socio- economic environment and many other <br />local factors. There have been numerous attempts <br />to list and categorize general categories of adapta- <br />tion actions derived from the principles of resistance, <br />resilience and facilitation strategies (Mawdsley et al. <br />2009). Rather than discussing all of these attempts <br />here, below is a listing of some of the more prominent <br />distinctions adapted from several sources (Heller and <br />Zavaleta 2009, Hodgson et al. 2009, Mawdsley et al. <br />2009, Thecharides et al. 2009). <br />One strategy for managing target species, habitats <br />and ecosystems under climate change is to imple- <br />ment actions so that these targets are better able to <br />resist the impacts of climate change (Millar et al. <br />2007). To prevent change, managers must build up <br />species' and ecosystem defenses against the direct <br />and indirect effects of rapid climate changes. For <br />example, in forest systems, resistance strategies might <br />involve actions such as preventing extreme forest fires <br />by creating fuel breaks around high value resources <br />or intensive removal of invasive species and inter- <br />vention to block future invasions. These types of <br />actions are likely to "require intensive intervention, <br />accelerating efforts and investments over time, and <br />a recognition that eventually these efforts may fail as <br />conditions change cumulatively (Millar et al. 2007)." <br />These types of actions may best be applied in the <br />short -term and to resources of high value; systems <br />with low sensitivity to climate change may respond <br />best to resistance treatments (Millar et al. 2007). <br />Maintaining resilient ecological communities and <br />allowing species to move in response to climate change <br />will require the strategic expansion of a connected <br />network of conservation areas and management of <br />these lands for climate change (Hannah et al. 2007). <br />Large conservation areas tend to contain more species <br />and tend to encompass greater levels of environmen- <br />tal heterogeneity (diversity of landscape features, <br />habitats and resources) than small areas. Hetero- <br />geneity generally promotes higher levels of species <br />richness and endemism, and provides opportuni- <br />ties for populations to survive different extremes by <br />shifting among different habitat types, soils, aspects, <br />or elevations within the larger landscape (Hodgson <br />et al. 2009). While simply expanding the conser- <br />vation footprint to create large conservation areas is <br />essential, strategically protecting lands that add to <br />the representation and redundancy of conservation <br />targets will also be important. Conservation areas <br />should represent the biological features or targets of <br />interest and the range of environmental conditions <br />under which they occur, and should provide redun- <br />dancy so that targets are represented multiple times <br />and are therefore less prone to extinction caused by <br />extreme events. Protecting land along ecological <br />gradients ( altitudinal, latitudinal, etc) will also be an <br />important strategy to help species shift their ranges <br />and move in response to climate change and adding <br />protected areas on the edges of species current distri- <br />butions may held species move and peripheral popu- <br />lations become increasingly important with climate <br />change (Hannah et al. 2007). <br />As the climate changes, strategic decisions about <br />where to spend limited conservation dollars to <br />protect habitat will be of critical importance. One <br />action may be to identify and protect conservation <br />areas that include climate refugia, or areas that may <br />be less affected by climate change than other areas <br />(e.g. due to local currents, topography, or geograph- <br />ic location) (Mawdsley et al. 2009). For example, <br />mountainous regions may provide refugia because <br />they are highly heterogeneous and contain a wide <br />range of micro - climates within the sites. Potential <br />refugia can be located using the paleological records <br />to identify sites where refugial populations persist- <br />ed during historic periods of rapid climate change <br />(Mawdsley et al. 2009). These locations may serve as <br />sites for long -term retention of species, or for intro- <br />duction of sensitive species from other locations. <br />
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