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Birds and Mammals of the Sierra Nevada
Birds and Mammals of the Sierra Nevada chronicles decades of ecological and zoological research conducted in Sequoia and Kings Canyon National Parks, tracing its origins to a 1916 expedition by the Museum of Vertebrate Zoology at the University of California. The book provides an in-depth account of wildlife surveys across varied ecosystems, detailing the collection and identification of specimens including birds, mammals, reptiles, and amphibians. From the early \"Sequoia Survey\" to expanded research conducted by renowned zoologists like Joseph S. Dixon and Adolph Murie, the volume synthesizes a wealth of field data and life-history observations. This work bridges early cross-sectional studies, such as those on Yosemite and Lassen regions, with ecological studies conducted through the mid-20th century, offering a comprehensive view of the Sierra's biodiversity and environmental dynamics. Prepared under the auspices of the National Park Service and enriched by collaboration with scientists, park staff, and naturalists, this volume goes beyond species descriptions. It incorporates ecological insights, behavioral studies, and critical updates to nomenclature, ensuring accuracy for both professional and casual readers. The publication integrates specimen photographs, detailed accounts of fieldwork, and expertly curated data from museum collections. With contributions from notable figures in vertebrate zoology and botany, and input from dedicated park rangers, the book is an invaluable resource for understanding the rich natural heritage of the Sierra Nevada, aimed at both enhancing public knowledge and supporting future research. This title is part of UC Press's Voices Revived program, which commemorates University of California Press's mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist
dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1953. Many titles in the Voices Revived program are also newly available as ebooks, offered at a discounted price to support wider access to scholarly work.
eBook
Isotope analysis reveals dietary overlap among sympatric canids
Abstract When colonizing new regions, invading species might compete strongly with phylogenetically related species native to the regions they are colonizing, eventually leading to coexistence or displacement. In the southeast of the United States, recently established coyotes (Canis latrans) compete with red fox (Vulpes vulpes) and gray fox (Urocyon cinereoargenteus), although it remains unclear if competition is leading to resource partitioning or displacement by species. Using nitrogen and carbon stable isotopes, we tested the hypothesis that coyotes compete with foxes for food resources, with canids partitioning those resources to mitigate competition. We compared diets of canids in the southeast to those in the Plains region of the United States, a region where all three species historically have coexisted. We analyzed 217 hair samples from both regions pre-1960, prior to coyote colonization of the southeast, and post-2000, after coyotes were ubiquitous there, to assess differences in diet among species for both regions (southeast versus Plains and time periods, pre- versus postcolonization by coyotes). Modeling revealed significant dietary overlap among historical and contemporary populations in the southeast. Historically, all species partitioned resources in the Plains. Contemporarily, red fox and coyotes co-occurring in the Plains overlapped in diet; however, gray fox diet did not overlap with those of red fox and coyotes. Absence of partitioning in diet among co-occurring canids in the southeast indicates that interspecific competition could be strong in the region. Competition among canid populations in the southeast could lead to further resource partitioning among species that promotes coexistence or competitive exclusion of smaller fox species where coyote populations are abundant.
Journal Article
Amazing arctic animals
Describes the physical characteristics, adaptations, and behavior of various animals that live in the arctic, including the polar bear, arctic fox, and arctic hare.
Book
Crocodile encounters : and more true stories of adventures with animals
Follow along with National Geographic explorer Brady Barr as he crawls into a muddy hole just barely big enough for his shoulders, and comes face to face with thirteen crocodiles! Laugh out loud as you learn how to catch a crocodile using shoe laces and underpants. Read in anticipation to find out what happens when you put a 600-lb crocodile on an airplane in just a flimsy wooden crate. These action-packed stories and more will engage readers and inspire them to go out and explore their own world.
Book
Flight directions of songbirds are unaffected by the topography of Lake Erie’s southern coastline during fall migration
Not provided.
Journal Article