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Monarch butterfly (Danaus plexippus plexippus) populations across the continent have dropped precipitously over the last 30 years, especially those found west of the Rocky Mountains. In 2018 and 2019, it was estimated that less than 30,000 individuals make up the western population of monarchs, representing the lowest estimates on record and less than one percent of 1980s-1990s population levels. An analysis of annual and seasonal data from 1980-2017 showed monarch butterflies overwintering in coastal California have declined more quickly than monarch overwintering in Mexico, and declines were most strongly associated with losses and degradation of overwintering habitat. To inform restoration of the overwintering...
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Incorporating climate change considerations into land management and species conservation remains challenging for natural resource managers, because other stressors such as drought or invasive species currently have a larger impact. Thus, it is often difficult to prioritize long-term goals when resources for the immediate needs of species are already difficult to secure. This project aims to combine the latest decision science with climate change refugia modeling to create a novel decision-framework that emphasizes a collaborative approach to complex management issues, which aims to bridge the gap between managing for current priorities and long-term climate change adaptation. In doing so, this framework will be...
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FY2013This project retrieves four years of data from over 200 temperature sensors nested within 28 sites across ~40 million hectares of the hydrographic Great Basin. The sensors span all major aspects and up to 700 m of elevation within sites, and occur in numerous management jurisdictions in 18 mountain ranges plus other areas not in ranges. This project: Quantifies the variability of climate at micro-, meso-, and macroscales across the Basin, and across diel, seasonal, and interannual periods. Informs management and conservation efforts, in terms of helping calibrate and refine the climatic stage upon which all biological actors and efforts hinge (Beier and Brost 2010). Feeds into other bioclimatic and wildlife...
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Natural resource managers are confronted with the pressing challenge to develop conservation plans that address complex ecological and societal needs against the backdrop of a rapidly changing climate. Climate change vulnerability assessments (CCVAs) provide valuable information that helps guide management and conservation actions in this regard. An essential component to CCVAs is understanding adaptive capacity, or the ability of a species to cope with or adjust to climate change. However, adaptive capacity is the least understood and evaluated component of CCVAs. This is largely due to a fundamental need for guidance on how to assess adaptive capacity and incorporate this information into conservation planning...
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Abstract (from Conservation Biology): Adaptive capacity (AC)—the ability of a species to cope with or accommodate climate change—is a critical determinant of species vulnerability. Using information on species’ AC in conservation planning is key to ensuring successful outcomes. We identified connections between a list of species’ attributes (e.g., traits, population metrics, and behaviors) that were recently proposed for assessing species’ AC and management actions that may enhance AC for species at risk of extinction. Management actions were identified based on evidence from the literature, a review of actions used in other climate adaptation guidance, and our collective experience in diverse fields of global-change...
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