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Book Status of the Foothill Yellow legged Frog Rana Boylii in Oregon

Download or read book Status of the Foothill Yellow legged Frog Rana Boylii in Oregon written by Aaron Nicholas Borisenko and published by . This book was released on 1999 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book STATUS OF FOOTHILL YELLOW LEGGED FROG RANA BOYLII IN OREGON U S DEPARTMENT OF THE INTERIOR APRIL 15 1999

Download or read book STATUS OF FOOTHILL YELLOW LEGGED FROG RANA BOYLII IN OREGON U S DEPARTMENT OF THE INTERIOR APRIL 15 1999 written by U.S. Fish and Wildlife Service and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Identification of Foothill Yellow legged Frog Individuals Through Automated Pattern Recognition

Download or read book Identification of Foothill Yellow legged Frog Individuals Through Automated Pattern Recognition written by Orion Kemp Leland and published by . This book was released on 2014 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photographic identification of individuals using natural physical markings provides important information for studying wildlife population demographics. The Foothill Yellow-legged Frog (Rana boylii, FYLF) is a species with unique chin-spot patterns that researchers currently identify through manual comparison of photographs in search of matching markings. However, these commonly employed methods, which can involve manually comparing many hundreds of images, are both time consuming and potentially inaccurate. In this project, we address this problem by defining a process that automates the identification of FYLF individuals from images using MATLAB-based image processing and pattern recognition techniques. We tested the process using replica frogs with patterns based on actual FYLF chin-spot patterns. This method effectively found matches in frogs when the individual spots had complex shapes. However, the process less effectively recognized patterns that were based primarily on spot location. This project provides several valuable tools researchers can use to identify FYLF individuals and can be the foundation for a more optimal system.

Book Foothill Yellow legged Frog Distribution and Status 1999

Download or read book Foothill Yellow legged Frog Distribution and Status 1999 written by Mark R. Jennings and published by . This book was released on 1999 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Spatial Ecology of an Inland Population of the Foothill Yellow legged Frog Rana Boylii in Tehama County California

Download or read book Spatial Ecology of an Inland Population of the Foothill Yellow legged Frog Rana Boylii in Tehama County California written by Ryan M. Bourque and published by . This book was released on 2008 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Selected Life history and Ecological Aspects of a Population of Foothill Yellow legged Frogs Rana Boylii from Clear Creek Nevada County California

Download or read book Selected Life history and Ecological Aspects of a Population of Foothill Yellow legged Frogs Rana Boylii from Clear Creek Nevada County California written by Thomas James Van Wagner and published by . This book was released on 1996 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Reintroduction of a Declining Amphibian

Download or read book Reintroduction of a Declining Amphibian written by Amy Jo Lind and published by . This book was released on 2005 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Identifying Microclimatic and Water Flow Triggers Associated with Breeding Activities of a Foothill Yellow legged Frog Rana Boylii Population on the North Fork Feather River California

Download or read book Identifying Microclimatic and Water Flow Triggers Associated with Breeding Activities of a Foothill Yellow legged Frog Rana Boylii Population on the North Fork Feather River California written by and published by . This book was released on 2008 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Ecology of Foothill Yellow legged Frogs in Upper Coyote Creek Santa Clara County CA

Download or read book Ecology of Foothill Yellow legged Frogs in Upper Coyote Creek Santa Clara County CA written by Thomas Earl Gonsolin (Jr.) and published by . This book was released on 2010 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: Visual encounter surveys, mark-recapture technique, and telemetry were used investigate breeding, movement, growth, habitat preferences, and predators of foothill yellow-legged frogs on Coyote Creek in Santa Clara County, California, from March 2004 to March 2006. The main stem and tributaries were intermittent in summer in all three years. Thermal conditions for breeding initiation were alike during 2004, 2005, and 2006. Breeding occurred in the main stem on descending limbs of the hydrograph. No breeding occurred in the middle main stem reach, which is ephemeral. Breeding occurred at less than an order of magnitude greater than base flows. Typically, larger females bred earlier, and egg mass size decreased as the breeding season progressed during 2004 and 2005. Males arrived earlier and remained in breeding areas longer. Resident tributary frogs moved greater distances than main stem frogs to breed. Females tended to travel farther than males and occupied habitats farther from the breeding areas. Frogs on Coyote Creek showed faster growth during their first year than Sierra Nevada and north Coast Range populations. Both sexes preferred pools and boulder-dominated habitat on both the main stem and tributary. Santa Cruz garter snakes were the most frequently encountered predator in the study area. However, all diurnal predators were scarce on the tributaries. Perennial water is a limiting factor within the study area, as illustrated by the movement patterns and timing of breeding.

Book Amphibians of Western North America

Download or read book Amphibians of Western North America written by Robert C. Stebbins and published by Univ of California Press. This book was released on 2023-12-22 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 1951. 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

Book Disappearing Jewels

Download or read book Disappearing Jewels written by Bruce E. Young and published by . This book was released on 2004-01-01 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: