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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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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...
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2013, 2014, Academics & scientific researchers, California, California, All tags...
Worldwide, many species are responding to ongoing climate change with shifts in distribution, abundance, phenology, or behavior. Consequently, natural-resource managers face increasingly urgent conservation questions related to biodiversity loss, expansion of invasive species, and deteriorating ecosystem services. We argue that our ability to address these questions is hampered by the lack of explicit consideration of species’ adaptive capacity (AC). AC is the ability of a species or population to cope with climatic changes and is characterized by three fundamental components: phenotypic plasticity, dispersal ability, and genetic diversity. However, few studies simultaneously address all elements; often, AC is confused...
A primarily stream-dwelling and obligate stream-breeding species, the foothill yellow-legged frog (FYLF) has declined from over half of its historical range, and a listing decision under the U.S. Endangered Species Act will likely be made in December 2021. Recent analyses suggest that the Southwestern California (SWC) clade is the most genetically unique and at the highest risk due to stressors in its geography, revealing the urgency of addressing the conservation of this clade. The rapid extirpation of some FYLF populations from the Central California Coast may have resulted from chytrid fungus. Therefore, strategic translocations from the remaining populations along the Central California Coast now could help...
California has a broad diversity of forest ecosystems and associated wildlife, which are facing complex conservation challenges due to the increase in the frequency, severity, and size of fire outbreaks throughout the state. Although these ecosystems are fire adaptive, these catastrophic fires burn with such high severity that they destroy complete forest stands and kill off the seed bank needed for natural forest regeneration. One of the primary mechanisms for reducing the threat of high severity fires is fuel management treatments to reduce the understory and prevent damaging crown fires from occurring. Increasingly federal, state, and private entities are coordinating fuel management projects across the patchwork...
California’s Central Valley habitats will continue to be influenced in the future by factors including changing land use, water availability, and population growth. Water scarcity and droughts will increasingly challenge wetland managers in the Central Valley. Thus, decisions on where to implement restoration and conservation projects today would benefit by considering plausible future landscape scenarios to ensure that restoration projects implemented now, continue to have value for decades to come. Recent work has developed spatially-explicit land use and climate change scenarios for Central Valley wetlands. Building on these existing efforts, this project will assess site-specific suitability of wetland habitat...


    map background search result map search result map Characterization of Montane Ecosystems, Their Microclimates, and Wildlife Distribution and Abundance Across the Hydrographic Great Basin Characterization of Montane Ecosystems, Their Microclimates, and Wildlife Distribution and Abundance Across the Hydrographic Great Basin