Columbia Spotted Frog
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Ecology Of The Columbia Spotted Frog In Northeastern Oregon
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Author : Evelyn L. Bull
language : en
Publisher:
Release Date : 2005
Ecology Of The Columbia Spotted Frog In Northeastern Oregon written by Evelyn L. Bull and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Amphibian declines categories.
The Columbia spotted frog (Rana luteiventris) is one of several amphibians in the Western United States experiencing population declines. The breeding, postbreeding, and overwintering habitat and ecology of this species were investigated in 10 study sites in northeastern Oregon from 1997 through 2004. A variety of habitats with permanent water were used as breeding sites and as postbreeding habitat during the summer. Ice-covered ponds, warm springs, rivers, and seeps in forested habitats were used for overwintering. Diet consisted of a wide variety of mollusks and arthropods with beetles, ants, wasps, and flies composing more than 50 percent. Population size was as high as 135 females at one site, and ratios of males to females ranged from 1.0 to 2.8. The oldest male and female were 9.7 and 8.7 years old, respectively, based on skeletochronology. Males reached sexual maturity at 1 year 9 months after metamorphosis and most females at 2 years 9 months after metamorphosis. One female laid eggs in up to 3 consecutive years. Size (snout-vent length) was not a good indicator of age in frogs older than 2 years. Long-term monitoring is necessary to determine the effects of a variety of disturbance factors and chytrid fungus that could influence spotted frog populations in northeastern Oregon.
Columbia Spotted Frog Rana Luteiventris
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Author : British Columbia. Ministry of Environment, Lands, and Parks
language : en
Publisher:
Release Date : 1985
Columbia Spotted Frog Rana Luteiventris written by British Columbia. Ministry of Environment, Lands, and Parks and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Columbia spotted frog categories.
Columbia Spotted Frog
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Author :
language : en
Publisher:
Release Date : 2001
Columbia Spotted Frog written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Frogs categories.
Ecology Of The Columbia Spotted Frog In Northeastern Oregon
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Author :
language : en
Publisher:
Release Date : 2005
Ecology Of The Columbia Spotted Frog In Northeastern Oregon written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Amphibian declines categories.
A Review Of The Habitat Requirements Of The Columbia Spotted Frog Rana Luteiventris In The Intermountain Region And Recommendations For The Restoration Of Columbia Spotted Frog Habitat Along The Middle Provo River
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Author :
language : en
Publisher:
Release Date : 1998
A Review Of The Habitat Requirements Of The Columbia Spotted Frog Rana Luteiventris In The Intermountain Region And Recommendations For The Restoration Of Columbia Spotted Frog Habitat Along The Middle Provo River written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
The Ecology And Population Status Of The Columbia Spotted Frog Rana Luteiventris At Their Northern Range Limit
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Author : Lee Mennell
language : en
Publisher:
Release Date : 1998
The Ecology And Population Status Of The Columbia Spotted Frog Rana Luteiventris At Their Northern Range Limit written by Lee Mennell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Oregon spotted frog categories.
Population Estimates For The Toiyabe Population Of The Columbia Spotted Frog Rana Luteiventris 2004 10
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Author : U.S. Department of the Interior
language : en
Publisher: CreateSpace
Release Date : 2014-03-30
Population Estimates For The Toiyabe Population Of The Columbia Spotted Frog Rana Luteiventris 2004 10 written by U.S. Department of the Interior and has been published by CreateSpace this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-03-30 with Nature categories.
The Toiyabe population of Columbia spotted frogs (Rana luteiventris, hereafter “Toiyabe frogs”) is a geographically isolated population located in central Nevada (fig. 1). The Toiyabe population is part of the Great Basin Distinct Population Segment of Columbia spotted frogs, and is a candidate for listing under the Endangered Species Act (U.S. Fish and Wildlife Service, 2011). The cluster of breeding sites in central Nevada represents the southernmost extremity of the Columbia spotted frogs' known range (Funk and others, 2008).
Monitoring And Modeling The Viability Of The Columbia Spotted Frog Rana Luteiventris
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Author : Sean M. Blomquist
language : en
Publisher:
Release Date : 2000
Monitoring And Modeling The Viability Of The Columbia Spotted Frog Rana Luteiventris written by Sean M. Blomquist and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Columbia spotted frog categories.
Columbia Spotted Frog Rana Luteiventris Statewide Monitoring Summary 2009
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Author : Christopher P. Crockett
language : en
Publisher:
Release Date : 2010
Columbia Spotted Frog Rana Luteiventris Statewide Monitoring Summary 2009 written by Christopher P. Crockett and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Columbia spotted frog categories.
Conservation Agreement And Conservation Strategy For Columbia Spotted Frogs Rana Luteiventris In Nevada
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Author :
language : en
Publisher:
Release Date : 2015
Conservation Agreement And Conservation Strategy For Columbia Spotted Frogs Rana Luteiventris In Nevada written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Columbia spotted frog categories.
"This Conservation Agreement (Agreement) has been developed to assist in the implementation of conservation measures for Columbia spotted frogs (Rana luteiventris) in Nevada, as a collaborative and cooperative effort among resource agencies, governments, and landowners. The desired outcome is to ensure the long-term conservation of the Columbia spotted frog within its historical range and to contribute to development of statewide conservation efforts for this species. The parties to this Agreement believe that implementing the conservation measures herein defined will benefit the Columbia spotted frog and should reduce the likelihood for its listing under the Endangered Species Act of 1973, as amended (ESA)...A previous ten-year Conservation Agreement and Strategy was signed and implemented in 2003"--Page A-1.