Life History Of The Coastal Tailed Frog Ascaphus Truei Across An Elevational Gradient

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Life History of the Coastal Tailed Frog (Ascaphus Truei) Across an Elevational Gradient

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Author : Adrian Daniel Macedo
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.:/5 (113 download)

Book Synopsis Life History of the Coastal Tailed Frog (Ascaphus Truei) Across an Elevational Gradient by : Adrian Daniel Macedo

Download or read book Life History of the Coastal Tailed Frog (Ascaphus Truei) Across an Elevational Gradient written by Adrian Daniel Macedo and published by . This book was released on 2019 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: I found that the larval period of A. truei in the Klamath Mountains of northern California ranges from two years in low and mid-elevations, to at least three years in high elevations. I also found decreased body size and increased growth rates of tadpoles with increasing elevation. Post-metamorphic frogs grew at similar rates as previously described coastal California populations. There was high site fidelity and significantly greater movement during the months of June and August in post-metamorphic animals. Frogs in the high elevations are capable of great longevity, with a maximum observed age estimated at eight years post-metamorphosis. The high elevation populations described here have the longest larval period documented in California. This study also provides the first field estimates of larval growth rates and the first longevity estimates of post metamorphic frogs in California. Future laboratory experiments will be necessary to separate phenotypic plasticity of life history traits from true genetic differences between A. truei populations in the Klamath Mountains of northern California, as potential explanations for the variation seen.

The Habitat Ecology of the Post-metamorphic Coastal Tailed Frog (Ascaphus Truei).

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Author : Alexandria L. McEwan
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (124 download)

Book Synopsis The Habitat Ecology of the Post-metamorphic Coastal Tailed Frog (Ascaphus Truei). by : Alexandria L. McEwan

Download or read book The Habitat Ecology of the Post-metamorphic Coastal Tailed Frog (Ascaphus Truei). written by Alexandria L. McEwan and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The coastal tailed frog (Ascaphus truei) has a biphasic life-history that includes the use of high-elevation streams and adjacent old growth forests. This species is at risk from a variety of land-use activities that result in younger and more fragmented terrestrial habitats. I investigated the fine-scale spatial ecology of post-metamorphic tailed frog populations as revealed by seasonal variation in activity and movement. I used an Information Theoretic Model Comparison approach to relate tailed frog captures in pitfall traps to sets of explanatory factors and infer habitat use by adult tailed frogs located with VHF radio transmitters. Trap data suggested that variation in the relative abundance and distribution was attributed to time of year, associated with reproductive activity seasonal trends in local climate canopy closure and distance to the larval stream. The most parsimonious logistic regression model for both years of trapping data demonstrated good' predictability (Area Under the Curve (AUC) > 0.7). Data from 24 tailed frogs with radio transmitters (8 males, 16 females) fitted to a resource selection function suggested that tailed frogs were positively associated with habitats containing decayed coarse woody debris (CWD), less light, adjacency to the larval stream, wet site types, and cool temperatures (11-12C). When compared to males, females were more selective in their choice of habitat (AUC > 0.7). Overall, the relationship between distribution and activity of tailed frogs was reflective of reproductive phenology in combination with micro-site or broader climatic conditions. Thus, habitat protections should reflect the behavior and habitat of the species as it varies across spatiotemporal scales.

Life History of Post-metamorphic Tailed Frogs (Ascaphus Truei) in North Coastal California

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Author : Laura L. Burkholder
Publisher :
ISBN 13 :
Total Pages : 90 pages
Book Rating : 4.:/5 (613 download)

Book Synopsis Life History of Post-metamorphic Tailed Frogs (Ascaphus Truei) in North Coastal California by : Laura L. Burkholder

Download or read book Life History of Post-metamorphic Tailed Frogs (Ascaphus Truei) in North Coastal California written by Laura L. Burkholder and published by . This book was released on 2005 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Curious Case of the Coastal Tailed Frog (ascaphus Truei) Near the Northern Extent of Its Range

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Author : Cherie Marie Mosher
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (128 download)

Book Synopsis Curious Case of the Coastal Tailed Frog (ascaphus Truei) Near the Northern Extent of Its Range by : Cherie Marie Mosher

Download or read book Curious Case of the Coastal Tailed Frog (ascaphus Truei) Near the Northern Extent of Its Range written by Cherie Marie Mosher and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ascaphus truei, an ancient species of frog, migrated into British Columbia, Canada, following the last ice age. A. truei is of conservation interest because forestry practices, and the associated infrastructure, may reduce habitat quality. There is also concern that a warmer and drier climate will change the distribution and abundance of this species. I used two genetic methods, microsatellites and next-generation sequencing, to compare the genetic diversity of A. truei from the northern extent of its range in British Columbia, CA to southern Washington, USA. Both methods suggested a dramatic reduction in diversity across the northern portion of the species' range. The phylogeography suggests a northern range expansion from a single refugium. I used DNA metabarcoding to compare the gut contents of larvae across three stream reaches and two development classes near the northern extent of A. truei's range. Gut contents differed between stream reach but did not differ among development class. Wetted width and ultimately stream volume may influence differences in gut content among stream reaches. I also quantified the relationship between an index of larvae density and environmental factors hypothesized to influence population density near the northern extent of the range. I assessed the segregation of larvae at various developmental stages. Wetted width and wetted depth correlated with differences in the abundance of larvae. Older developmental stages were captured in stream reaches with greater slopes than younger stages. Management should minimize modifications of stream structure, such as in-stream siltation due to road building. We should maintain habitat connectivity and gene flow to ensure the continued migration and adaptive capacity of A. truei.

Dispersion of Coastal Tail Frog (Ascaphus Truei)

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Author :
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (761 download)

Book Synopsis Dispersion of Coastal Tail Frog (Ascaphus Truei) by :

Download or read book Dispersion of Coastal Tail Frog (Ascaphus Truei) written by and published by . This book was released on 2006 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Distribution and Ecology of the Tailed Frog, Ascaphus Truei Stejnger, in California

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Author : R. Bruce Bury
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (128 download)

Book Synopsis The Distribution and Ecology of the Tailed Frog, Ascaphus Truei Stejnger, in California by : R. Bruce Bury

Download or read book The Distribution and Ecology of the Tailed Frog, Ascaphus Truei Stejnger, in California written by R. Bruce Bury and published by . This book was released on 1967 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Management Plan for the Coastal Tailed Frog (Ascaphus Truei) in British Columbia

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Author : Linda Anne Dupuis
Publisher :
ISBN 13 :
Total Pages : 51 pages
Book Rating : 4.:/5 (945 download)

Book Synopsis Management Plan for the Coastal Tailed Frog (Ascaphus Truei) in British Columbia by : Linda Anne Dupuis

Download or read book Management Plan for the Coastal Tailed Frog (Ascaphus Truei) in British Columbia written by Linda Anne Dupuis and published by . This book was released on 2015 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Tailed Frog

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Author : British Columbia. Ministry of Environment, Lands, and Parks
Publisher :
ISBN 13 :
Total Pages : 1 pages
Book Rating : 4.:/5 (775 download)

Book Synopsis Tailed Frog by : British Columbia. Ministry of Environment, Lands, and Parks

Download or read book Tailed Frog written by British Columbia. Ministry of Environment, Lands, and Parks and published by . This book was released on 2001 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Frogs of the United States and Canada

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Author : C. Kenneth Dodd Jr.
Publisher : JHU Press
ISBN 13 : 1421444925
Total Pages : 991 pages
Book Rating : 4.4/5 (214 download)

Book Synopsis Frogs of the United States and Canada by : C. Kenneth Dodd Jr.

Download or read book Frogs of the United States and Canada written by C. Kenneth Dodd Jr. and published by JHU Press. This book was released on 2023-06-20 with total page 991 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most thorough, updated guide to frogs and toads in the United States and Canada available. A stunning diversity of frog species can be found from coastal swamps to lofty mountain peaks, and from the Florida Keys to the Arctic Ocean. They live in subtropical lowlands, grassland prairies, deserts, and alpine-tundra habitats. Some species have restricted habitat requirements, whereas others occur contiguously from the arid plains or humid southeastern forests to the high tundra. In this new edition of Frogs of the United States and Canada, C. Kenneth Dodd Jr. tours the reader through the marvelous world of North American frogs. Covering 114 native and introduced species from all US states and Canadian provinces, this comprehensive reference on the biology, behavior, and conservation of the Order Anura includes detailed and updated information on • past and present distribution • life history and demography • reproduction and diet • landscape ecology and evolution • diseases, parasites, and threats from toxic substances • conservation and management Hundreds of occurrence maps, line drawings, and new color photographs of frogs and their habitats enhance the text. The most thorough treatment of the life histories, distribution, and status of North American frogs ever produced, Frogs of the United States and Canada has been the go-to reference for naturalists, scientists, and resource managers in their efforts to understand and conserve frogs, their habitats, and biodiversity for over a decade. Based on a meticulously updated examination of more than 8,000 references current through 2021, this second edition ensures Dodd's master work will remain an unparalleled resource for years to come.

Pre-hatching Stages of the Tailed Frog, (Ascaphus Truei) (Stejnegar)

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Author : James George Wernz
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (186 download)

Book Synopsis Pre-hatching Stages of the Tailed Frog, (Ascaphus Truei) (Stejnegar) by : James George Wernz

Download or read book Pre-hatching Stages of the Tailed Frog, (Ascaphus Truei) (Stejnegar) written by James George Wernz and published by . This book was released on 1966 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Description of anuran larvae with the use of staging tables is a common practice in the study of frog life-histories, but there has been no previous description or table of Ascaphus larvae. In comparing Ascaphus larvae to a simplified staging table for anurans it was found that these larvae vary considerably from those of other anurans. Five stages had to be eliminated (Fertilization, Grey Crescent, Neural Plate, Gill Circulation, and Cornea Transparent) and five new ones created (Deposition, Neural Groove, Eye Pigmentation, Body Pigmentation, and Hatching). The final result was a series of twenty-one stages, from Deposition through Hatching, through which the growth and development of the larvae could be traced and which will, it is hoped, facilitate discussion of larval Ascaphus in any further studies. Determination of tadpole food habits through stomach and intestinal content samples was largely unsuccessful.

Phylogeography of the Tailed Frog (Ascaphus Truei)

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Author : Marilyn K. Nielson
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (463 download)

Book Synopsis Phylogeography of the Tailed Frog (Ascaphus Truei) by : Marilyn K. Nielson

Download or read book Phylogeography of the Tailed Frog (Ascaphus Truei) written by Marilyn K. Nielson and published by . This book was released on 2000 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

COSEWIC Assessment and Status Report on the Coastal Tailed Frog, Ascaphus Truei, in Canada

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Author :
Publisher :
ISBN 13 : 9781100202129
Total Pages : pages
Book Rating : 4.2/5 (21 download)

Book Synopsis COSEWIC Assessment and Status Report on the Coastal Tailed Frog, Ascaphus Truei, in Canada by :

Download or read book COSEWIC Assessment and Status Report on the Coastal Tailed Frog, Ascaphus Truei, in Canada written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

COSEWIC Assessment and Status Report on the Rocky Mountain Tailed Frog (Ascaphus Montanus) in Canada

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Author :
Publisher :
ISBN 13 : 9781100235363
Total Pages : 58 pages
Book Rating : 4.2/5 (353 download)

Book Synopsis COSEWIC Assessment and Status Report on the Rocky Mountain Tailed Frog (Ascaphus Montanus) in Canada by :

Download or read book COSEWIC Assessment and Status Report on the Rocky Mountain Tailed Frog (Ascaphus Montanus) in Canada written by and published by . This book was released on 2013 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Larval Growth and Age at Completion of Metamorphosis of the Tailed Frog, Ascaphus Truei

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Author : Lucie Ann Gray
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.:/5 (276 download)

Book Synopsis Larval Growth and Age at Completion of Metamorphosis of the Tailed Frog, Ascaphus Truei by : Lucie Ann Gray

Download or read book Larval Growth and Age at Completion of Metamorphosis of the Tailed Frog, Ascaphus Truei written by Lucie Ann Gray and published by . This book was released on 1992 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Landscape Genetics

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Author : Niko Balkenhol
Publisher : John Wiley & Sons
ISBN 13 : 1118525299
Total Pages : 298 pages
Book Rating : 4.1/5 (185 download)

Book Synopsis Landscape Genetics by : Niko Balkenhol

Download or read book Landscape Genetics written by Niko Balkenhol and published by John Wiley & Sons. This book was released on 2015-11-09 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: LANDSCAPE GENETICS: CONCEPTS, METHODS, APPLICATIONS LANDSCAPE GENETICS: CONCEPTS, METHODS, APPLICATIONS Edited by Niko Balkenhol, Samuel A. Cushman, Andrew T. Storfer, Lisette P. Waits Landscape genetics is an exciting and rapidly growing field, melding methods and theory from landscape ecology and population genetics to address some of the most challenging and urgent ecological and evolutionary topics of our time. Landscape genetic approaches now enable researchers to study in detail how environmental complexity in space and time affect gene flow, genetic drift, and local adaptation. However, learning about the concepts and methods underlying the field remains challenging due to the highly interdisciplinary nature of the field, which relies on topics that have traditionally been treated separately in classes and textbooks. In this edited volume, some of the leading experts in landscape genetics provide the first comprehensive introduction to underlying concepts, commonly used methods, and current and future applications of landscape genetics. Consistent with the interdisciplinary nature of the field, the book includes textbook-like chapters that synthesize fundamental concepts and methods underlying landscape genetics (Part 1), chapters on advanced topics that deserve a more in-depth treatment (Part 2), and chapters illustrating the use of concepts and methods in empirical applications (Part 3). Aimed at beginning landscape geneticists and experienced researchers alike, this book will be helpful for all scientists and practitioners interested in learning, teaching, and applying landscape genetics.

Amphibians of Oregon, Washington and British Columbia

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Author : Charlotte C. Corkran
Publisher : Lone Pine Publishing
ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.F/5 ( download)

Book Synopsis Amphibians of Oregon, Washington and British Columbia by : Charlotte C. Corkran

Download or read book Amphibians of Oregon, Washington and British Columbia written by Charlotte C. Corkran and published by Lone Pine Publishing. This book was released on 2006 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amphibians are provided, including: habitat preferences, tips for finding them, planning amphibian surveys, guidelines for handling and measuring them, their activity through the seasons, photography tips, a table that compares confusing species, current status. This handy, informative book is sure to be invaluable to biologists and field technicians as well as to individuals on a family outing or school field trip. Book jacket.

A Standardized Protocol for Surveying Aquatic Amphibians

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Author : Gary M. Fellers
Publisher :
ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.:/5 (319 download)

Book Synopsis A Standardized Protocol for Surveying Aquatic Amphibians by : Gary M. Fellers

Download or read book A Standardized Protocol for Surveying Aquatic Amphibians written by Gary M. Fellers and published by . This book was released on 1995 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: