Download or read book Conservation Genetics of Remnant Northern Leopard Frog Lithobates Pipiens Populations in Western Nevada written by Serena D. Rogers and published by . This book was released on 2010 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Conservation and Biogeography of Amphibians in the Caribbean written by Neftalí Ríos-López and published by Pelagic Publishing Ltd. This book was released on 2023-02-28 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: An expansive and detailed review of the biology of Caribbean amphibians, considering their threats, conservation and outlook in a changing world. Amphibians are the group of vertebrates undergoing the fastest rate of extinction; it is urgent that we understand the causes of this and find means of protecting them. This landmark illustrated volume brings together the leading experts in the field. As well as offering an overview of the region as a whole, individual chapters are devoted to each island or island-group and the measures used to protect their amphibians through legislation or nature reserves. The biological background of insular biogeography, including its methods, analysis and results, is reviewed and applied specifically to the problems of Caribbean amphibians – this includes a re-examination of patterns and general ideas about the status of amphibians in the Anthropocene. The Conservation and Biogeography of Amphibians in the Caribbean offers an important baseline against which future amphibian conservation can be measured in the face of climate change, rising sea level and a burgeoning human population. Covers over 300 species.
Download or read book The Geology Ecology and Human History of the San Luis Valley written by Jared Maxwell Beeton and published by University Press of Colorado. This book was released on 2020-08-24 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Geology, Ecology, and Human History of the San Luis Valley explores the rich landscapes and diverse social histories of the San Luis Valley, an impressive mountain valley spanning over 9,000 square miles that crosses the border of south-central Colorado and north-central New Mexico and includes many cultural traditions. Twenty-six expert scholars and educators—including geologists, geographers, biologists, ecologists, linguists, historians, sociologists, and consultants—uncover the natural and cultural history of the region, which serves as home to the Sangre de Cristo Mountains, the San Juan Mountains, Great Sand Dunes National Park and Preserve, and the Rio Grande headwaters. The first section, “The Geology and Ecology of the San Luis Valley,” surveys the geomorphology, hydrology, animal and plant life, conservation, management, and mining of the valley’s varied terrain. The second section, “Human History of the San Luis Valley,” recounts the valley’s human visitation and settlement, from early indigenous life to Spanish exploration to Hispanic and Japanese settlements. This section introduces readers to the region’s wide range of religious identities—Catholic, Latter-day Saint, Buddhist, Jehovah’s Witness, Amish, and Mennonite—and diverse linguistic traditions, including Spanish, English, Dutch, Danish, Japanese, and Mayan. The final section, “Travel Itineraries,” addresses recreation, specifically fly-fishing and rock climbing. The book provides a comprehensive overview of the endemic flora and fauna, human history of indigenous lifeways, and diverse settlement patterns that have shaped the region. The Geology, Ecology, and Human History of the San Luis Valley will appeal to students and scholars of geology, ecology, environmental history, and cultural history, as well as residents and tourists seeking to know more about this fascinating and integral part of Colorado and New Mexico. Contributors: Benjamin Armstrong, Timothy Armstrong, Deacon Aspinwall, Robert Benson, Lorrie Crawford, Kristy Duran, Jeff Elison, Eric Harmon, Devin Jenkins, Bradley G. Johnson, Robert M. Kirkham, Bessie Konishi, Angie Krall, Richard D. Loosbrock, Richard Madole, A. W. Magee, Victoria Martinez, James McCalpin, Mark Mitchell, R. Nathan Pipitone, Andrew Valdez, Rio de la Vista, Damián Vergara Wilson
Download or read book Genetic Structure and Hybridization of the Northern Leopard Frog Lithobates Pipiens Along the Mora Watershed in Northern New Mexico written by Jose I. Griego and published by . This book was released on 2015 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Natural History and Evolution of a Color Polymorphism in Rana Pipiens the Northern Leopard Frog written by Eric Adam Hoffman and published by . This book was released on 2003 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: A primary goal of population genetics is to identify the role of microevolutionary forces in producing observed patterns of molecular and phenotypic variation. I conducted four studies in the northern leopard frog, Rana pipiens, to determine just how mutation, migration, genetic drift, and selection influenced, genetic structure of mitochondrial DNA (mtDNA), nuclear DNA, and a single locus polymorphism that determines dorsal coloration. In the first study, I surveyed the literature concerning color and pattern polymorphisms in anurans. I conclude that anuran polymorphisms remain a rich but largely unexploited system for studying the evolution of phenotypic variation in nature. In the second study, I compared mitochondrial DNA variation from 35 populations distributed across the species' range. A phylogenetic analysis indicated R. pipiens is split into two deeply divergent mtDNA groups, a western group and an eastern group. Phylogeographic and demographic analyses indicated that although restricted gene flow with isolation by distance explained the majority of the processes influencing current genetic structure, population bottlenecks and expansions also played an important role. In the third study, I investigated mtDNA and microsatellite variation in Pacific Northwest populations of R. pipiens, where a recent range contraction had occurred. I found that peripheral populations had reduced levels of genetic variation compared to more interior populations. Moreover, I found that historic samples from peripheral population already had reduced levels of genetic variation. Therefore, low diversity in the remnant populations could not be ascribed to the recent range contraction. In the fourth study, I compared genetic structure from a suite of putatively neutral molecular markers with that derived from the color polymorphism locus. Genetic structure at the color locus, assessed both spatially and temporally, was indistinguishable from structure at neutral loci. This study exemplifies the importance of investigating for evidence of selective maintenance before studies attempt to measure the selective mechanisms maintaining a polymorphism. Overall, my research helps to elucidate how biogeographic and microevolutionary forces influence a wide-spread North American species, R. pipiens.
Download or read book Genetic Assessment of Potential Source Populations for the Reintroduction of Northern Leopard Frogs Rana Pipiens to Sites in Alberta written by Gregory A. Wilson and published by . This book was released on 2009 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population Status and Population Genetics of Northern Leopard Frogs in Arizona written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-04 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing isolation of populations by habitat fragmentation threatens the persistence of many species, both from stochastic loss of small isolated populations, and from inbreeding effects in populations that have become genetically isolated. In the southwestern United States, amphibian habitat is naturally patchy in occurrence because of the prevailing aridity of the region. Streams, rivers, and other wetlands are important both as habitat and as corridors that connect populations. However, populations of some species have become more fragmented and isolated by habitat degradation and loss. Northern leopard frogs (Rana pipiens) have experienced serious declines in the Southwest.
Download or read book COSEWIC Assessment and Update Status Report on the Northern Leopard Frog Lithobates Pipiens Rocky Mountain Population Western Boreal prairie Populations Eastern Populations in Canada written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conservation Genetics of Remnant Springsnail Pyrgulopsis Wongi Populations in Desert Valleys of California and Nevada written by Robin A. Hamlin and published by . This book was released on 1996 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Status and Distribution of the Northern Leopard Frog Rana Pipiens in Nevada written by Cynthia J. Hitchcock and published by . This book was released on 2001 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Diversity and Genetic Structuring at Multiple Spatial Scales Across the Range of the Northern Leopard Frog Rana Pipiens written by Ryan P. O'Donnell and published by . This book was released on 2012 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: PUBLIC ABSTRACT: Genetic diversity is the raw material for evolution: evolution cannot happen without genetic diversity, and the ability of a population to respond to a changing environment depends directly on how diverse its genes are. Understanding the distribution of genetic diversity is important for many reasons, including predicting whether species will be able to adapt to climate change and predicting the spread of invasive species. Information about the distribution of genetic diversity across the range of the Northern Leopard Frog, a declining species, will not only help us to ensure that the species can continue to evolve in response to changing environmental conditions, but it will also help us gain a better understanding of what factors drive genetic diversity in populations of other species. In Chapter 2, we found that genetic diversity was reduced in edge populations relative to central populations, but was not reduced in populations in previously glaciated areas; therefore position at range edge had a stronger effect in reducing diversity than recent colonization of new habitat. In Chapter 3, we found two distinct lineages within the species that mix in the eastern Great Lakes region, elevating genetic diversity in that area. In Chapter 4, we found that populations in the Stoneman Lake area of Arizona had high genetic diversity, but also contained evidence of introduction of eastern frogs, and we concluded that moving frogs from the Stoneman Lake area to restore diversity in other Arizona populations is not recommended.
Download or read book Alberta Northern Leopard Frog Recovery Plan 2005 2010 written by Alberta. Fish and Wildlife Division and published by Alberta Sustainable Resource Development. This book was released on 2005-01-01 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The northern leopard frog (Rana pipiens) is a medium-sized frog with powerful hind legs and extensively webbed hind feet that are well adapted for jumping and swimming. In February 2004, the Minister of Alberta Sustainable Resource Development maintained the listing of the northern leopard frog as threatened under Alberta's Wildlife Act. The Alberta Northern Leopard Frog Recovery team prepared this plan to guide the management of this threatened species over a 5 year period. The ultimate goal of this initiative is to achieve well-distributed, self-sustaining populations of leopard frogs throughout their historical range in Alberta. A long-term objective (>25 years) is to ensure that there are at least 2 self-sustaining populations of northern leopard frogs in each subdrainage of all major river drainages in southern Alberta. During the life of this plan, the Team aims to protect known sites from anthropogenic threats, improve knowledge of northern leopard frog populations in the province, reintroduce frogs to southern Alberta, increase awareness of the species and its conservation, and monitor the success of reintroduction efforts.
Download or read book Magrath Northern Leopard Frog Reintroduction Project written by Kathryn A. Romanchuk and published by Alberta Sustainable Resource Development. This book was released on 2003-01-01 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Management Plan for the Northern Leopard Frog Lithobates Pipiens Western Boreal Prairie Population in Canada written by Andrew B. Didiuk and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Survey Protocol for the Northern Leopard Frog written by Kris Kendell and published by Fish & Wildlife Division, Resource Status and Assessment Branch, Alberta Sustainable Resource Development. This book was released on 2002 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Northern Leopard Frog Reintroduction Year 3 2001 written by Kris Kendell and published by Fish & Wildlife Division, Resource Status and Assessment Branch, Alberta Sustainable Resource Development. This book was released on 2002 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recovery Strategy for the Northern Leopard Frog Lithobates Pipiens Rocky Mountain Population in Canada written by and published by . This book was released on 2017 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
