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result(s) for
"California Sequoia National Park."
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Frommer's Yosemite & neighboring parks
\"From the most trusted name in travel, Frommer's Yosemite & Neighboring Parks is a savvy, easily carry able, completely up-to-date guide to one of the United State's most storied vacation destinations. With helpful advice and honest recommendations from long-time California expert Rosemary McClure, the book covers these parks iconic attractions, plus their hidden gems\"-- Amazon.com.
Book
Spatial and temporal changes in invertebrate assemblage structure from the entrance to deep-cave zone of a temperate marble cave
Seasonality in surface weather results in seasonal temperature and humidity changes in caves. Ecological and physiological differences among trogloxenes, troglophiles, and troglobionts result in species-dependent responses to this variability. To investigate these responses, we conducted five biological inventories in a marble cave in the Sierra Nevada Range, California, USA between May and December 2010. The cave was divided into six quadrats and temperature was continuously logged in each (humidity was logged at the entrance and in the deep cave). With increasing distance from the entrance, temperature changes were increasingly attenuated and lagged relative to surface temperature. Linear regressions were created to determine the relationship between measured environmental variables and diversity for cavernicoles (troglobionts and troglophiles) and trogloxenes cave- wide and in the transition zone. Diversity for cavernicoles and trogloxenes peaked in the entrance and deep cave zones, respectively. Quadrat, date, 2-week antecedent temperature average, 2-week antecedent temperature range, and trogloxene abundance explained 76% of cavernicole diversity variability. Quadrat explained 55% of trogloxene diversity variability. In the transition zone, trogloxene abundance explained 26% of cavernicole variability and 2-week antecedent temperature and 2-week antecedent temperature range explained 40% of trogloxene variability. In the transition zone, trogloxene diversity was inversely related to 2-week antecedent temperature average and 2-week antecedent temperature range, suggesting that species were moving into the transition zone when temperature was most stable. In a CCA of cavernicoles distribution data and environmental variables, 35% of variation in species-specific distributions was attributable to quadrat, and non-significant percentages were explained by date and environmental variables. Differences in assemblage structure among quadrats were largely due to differences between distributions of trogloxenes and cavernicoles, but responses varied among species. Differences are likely due to ecological niche width, physiological constraints, and competition.
Journal Article
Yosemite and Sequoia/Kings Canyon National Parks
\"Travel to America's national parks is growing every year. Tourist visits to Yosemite in 2016 were up almost 20% over 2015, while visitation to Sequoia was up over 14%. Focused coverage on only the best places so travelers can make the most out of their limited time. Carefully vetted recommendations for all types of establishments and price points\"--Provided by publisher.
Book
King Sequoia
A naturist and historian for the National Parks Service offers a lively history of the giant sequoias of California and the love of nature they inspired.
Former park ranger William C. Tweed takes readers on a tour of some of the world's largest and oldest trees in a narrative that travels deep into the Sierra Nevada mountains, across the American West, and all the way to New Zealand. Along the way, he explores the American public's evolving relationship with sequoias, also known simply and affectionately as Big Trees.
It's no surprise that the sequoia groves of Yosemite and Calaveras were early tourist destinations. The species was the embodiment of California's superlative appeal. These giant redwoods were so beloved that special protections efforts sprang up to protect them from logging interests—and so began the notion of National Parks. Later, as science evolved to consider landscapes more holistically, sequoias once again played a major role in shaping this new perspective. Featuring a fascinating cast of adventurers, researchers, politicians, and environmentalists, King Sequoia reveals how one tree species transformed Americans' connection to the natural world.
eBook
Mapping the vulnerability of giant sequoias after extreme drought in California using remote sensing
Between 2012 and 2016, California suffered one of the most severe droughts on record. During this period Sequoiadendron giganteum (giant sequoias) in the Sequoia and Kings Canyon National Parks (SEKI), California, USA experienced canopy water content (CWC) loss, unprecedented foliage senescence, and, in a few cases, death. We present an assessment of the vulnerability of giant sequoia populations to droughts that is currently lacking and needed for management. We used a temporal trend of remotely sensed CWC obtained between 2015 and 2017, and recently georeferenced giant sequoia crowns to quantify the vulnerability of 7,408 individuals in 10 groves in the northern portion of SEKI. CWC is sensitive to changes in liquid water in tree canopies; therefore, it is a useful metric for quantifying the response of sequoia trees to drought. Temporal trends indicated that 9% of giant sequoias had a significant decline or consistently low CWC, suggesting these trees were likely operating at low photosynthetic capacity and potentially at high risk to drought stress. We also found that 20% of the giant sequoias had an increase or consistently high level of CWC, indicating these trees were at low risk to drought stress. These vulnerability categories were used in a random forest model with a combination of topographic, fire-related, and climate variables to generate high-resolution vulnerability risk maps. These maps show that higher risk is associated with lower elevation and higher climate water deficit. We also found that sequoias at higher elevations but located near meadows had higher vulnerability risk. These results and the vulnerability maps can identify vulnerable sequoias that may be difficult to save or locations of refugia to be protected, and thus may aid forest managers in preparation for future droughts.
Journal Article