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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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5 3Adq,,, :"ll�tat11i`of'' Sitra1egl11i"er <br />Conservation actions may be classified into three <br />broad types of climate change adaptation strategies <br />— resistance, resilience, and facilitation — aimed to <br />help species, habitats, and ecosystems maintain or <br />change towards a functional future state in response <br />to climate changes. <br />Resistance strategies include those management <br />actions designed to keep an ecosystem or species <br />from changing in response to climate change by <br />limiting exposure to the impacts of climate changes. <br />These types of actions may help to "buy time" for a <br />system in the short -term until other adaptation strat- <br />egies are developed or help to maintain conditions in <br />sensitive or high value ecosystems (Millar et al. 2007) <br />but are unlikely to be viable over longer time periods <br />due to the pace of climate change. The use of dredge <br />material on coastal shorelines or offshore islands to <br />prevent inundation caused by sea level rise and main- <br />tain an intact coastal ecosystem is an example of a <br />resistance strategy. <br />Resilience strategies include management actions <br />aimed at supporting an ecosystem or species by <br />increasing the amount of change that a system can <br />absorb without undergoing a fundamental shift to <br />a different set of processes and structures. Remov- <br />ing invasive species to increase an ecosystem's abil- <br />ity to recover from other disturbances or preserving <br />ecological heterogeneity in a landscape are resilience - <br />building strategies that enable an ecosystem to main- <br />tain ecological functions and biodiversity. These <br />types of strategies are often emphasized as early <br />response options to climate change because they may <br />be more robust to a range of future climate scenarios <br />(Lawler et al. 2010) and because there is less uncer- <br />tainty in how species and ecosystems will respond to <br />these interventions; these types of strategies may be <br />considered the backbone of a strong climate change <br />adaptation response. <br />Facilitation strategies include management actions <br />that are direct interventions to facilitate a change in <br />state of the ecosystem or species population towards <br />a desirable future state with native species, intact <br />ecological functions and continued provisioning of <br />essential ecological services. While management <br />actions that resist change and build resilience may <br />be preferable alternatives for early implementation <br />(Lawler et al. 2010), more targeted actions to manage <br />and direct ecosystem and species -level responses to <br />climate change may be necessary to avoid unsustain- <br />able land management expectations and biodiversity <br />loss (Galatowitsch et al. 2009). Facilitation actions <br />"mimic, assist, or enable ongoing natural adaptive <br />processes such as species dispersal and migration, <br />population mortality and colonization, changes in <br />species dominances and community composition, <br />and changing of disturbance regimes (Millar et al. <br />2007)," and may be more appropriate for dealing <br />with large degrees of climate change projected in <br />the future depending on the management objective. <br />Actions to facilitate change may include increas- <br />ing landscape connectivity and permeability to <br />allow species and ecological communities to shift <br />in response to climate change, trans- locating sensi- <br />tive species that are unable to keep pace with climate <br />change, changing the plant species used in restora- <br />tion projects, and creating man -made disturbances <br />such as fire treatments. <br />Managell,,' wIPI f' it" actl 1i"onsIfror c/ /i,/I wite <br />change ada ,:71 iltlolr'lr' <br />Translating the resistance, resilience, and facilita- <br />tion strategies into management actions for on -the- <br />ground implementation is a significant challenge. <br />Designing actions is context specific and depends <br />
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