Assessing Climate Change Effects On Competitive Interactions Of The Federally Endangered Shenandoah Salamander Plethodon Shenandoah
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| Author | : Eric A. Dallalio |
| Publisher | : |
| Total Pages | : 59 |
| Release | : 2013 |
| Genre | : |
| ISBN | : |
The Shenandoah salamander (Plethodon shenandoah) is a federally endangered species with a restricted distribution at high elevation in Shenandoah National Park, presumably limited by competition with the red-backed salamander (Plethodon cinereus). Recent research suggests that climate change may exacerbate interspecific competitive interactions at a cost to P. shenandoah. An effort to evaluate P. shenandoah extinction risk and management options identified uncertainties that must be addressed in order to make a management decision, including the response of P. shenandoah to climate change. I investigated the influence of climate on competitive interactions in 3- dimensional mesocosms that mimicked realistic habitats in two phases: (1) a pilot study to ensure the suitability of the experimental venue, and (2) a primary study to investigate the response of P. shenandoah to competition with P. cinereus under two future climate scenarios. The results suggest that core P. shenandoah populations may decline in response to increasing temperatures, particularly if their habitat is getting warmer and drier, though range expansion may occur in areas where it competes with P. cinereus.
| Author | : Martha Riddering Griffis |
| Publisher | : |
| Total Pages | : 190 |
| Release | : 1993 |
| Genre | : Competition (Biology) |
| ISBN | : |
| Author | : Robert G. Jaeger |
| Publisher | : Oxford University Press |
| Total Pages | : 249 |
| Release | : 2016-08-04 |
| Genre | : Science |
| ISBN | : 0190605510 |
The small, terrestrial eastern red-backed salamander is abundant on many forest floors of northeastern North America. Dr. Robert Jaeger and many of his graduate students spent over 50 years studying this species in New York and Virginia, using ecological techniques in forests and behavioral experiments in laboratory chambers in an attempt to understand how this species interacts with other species in the forest and the components of its intra- and intersexual social behaviors. The competitive and social behaviors of this species are unusually complex for an amphibian. This species is highly aggressive towards other similar-size species where they cohabit in forests, often leading to very little geographic overlap between the species. The authors examine the fascinating behavioral traits of this species including social monogamy, mutual mate guarding, sexual coercion, inter-species communication, and conflict resolution.
| Author | : Heather Renee Cunningham |
| Publisher | : |
| Total Pages | : 166 |
| Release | : 2010 |
| Genre | : Electronic dissertations |
| ISBN | : |
My research investigated the impact of abiotic factors and species interactions on the geographic distribution of two terrestrial salamander species, Plethodon glutinosus(Northern Slimy Salamander) and P. mississippi (Mississippi Slimy Salamander) at different spatial scales. I addressed the influence of ecological factors such as climate and topography on the relative strength of competitive interactions at broad and local scales. Often these factors are studied as independent determinants of species range limits; therefore, my research was designed to address how interactions between different ecological factors affected populations across geographic space. The novelty of my research was the methodological approach used. To my knowledge, this is the first use of ecological niche modeling in conjunction with fine scaled studies of competitive interactions to empirically test the influence of ecological factors on the relative strength of competitive interactions. At broad spatial scales the cost of competitive interactions for P. glutinosus and P. mississippiwas found to increase at the range margin relative to the interior of the range. However, along the range margin, the influence of climate and species interactions did not vary in a predictable manner. It is likely that interactions between microclimatic conditions, habitat structure, and land cover are stronger constraints on species interactions at the range margin than broad scale climate patterns. Subtle alterations in aggressive behavior, due to the introduction of a non-native congener, had little impact in local scale distribution. This is likely due to habitat structure and local abiotic conditions at the site of introduction. Overall the distributions of P. glutinosus and P. mississippi are shaped by multiple interactions between abiotic and biotic factors that differ in their relative strength at different spatial scales across geographic space. My work demonstrates the importance of considering interactions among various ecological causes of range limits and the spatial scale of investigation.
| Author | : Michael J. Lannoo |
| Publisher | : Univ of California Press |
| Total Pages | : 1124 |
| Release | : 2005-06-15 |
| Genre | : Nature |
| ISBN | : 9780520235922 |
Documents in comprehensive detail a major environmental crisis: rapidly declining amphibian populations and the disturbing developmental problems that are increasingly prevalent within many amphibian species.
| Author | : Mary Beth Adams |
| Publisher | : BoD – Books on Demand |
| Total Pages | : 298 |
| Release | : 2006-04-28 |
| Genre | : History |
| ISBN | : 1402046146 |
The Fernow Watershed Acidification Study is a long-term, paired watershed acidification study. This book describes the responses to chronic N and S amendments by deciduous hardwood forests, one of the few studies to focus on hardwood forest ecosystems. Intensive monitoring of soil solution and stream chemistry, along with measurements of soil chemistry, and vegetation growth and chemistry, provide insights into the acidification process in forested watersheds.
| Author | : Kentwood D. Wells |
| Publisher | : University of Chicago Press |
| Total Pages | : 1162 |
| Release | : 2010-02-15 |
| Genre | : Science |
| ISBN | : 0226893332 |
Consisting of more than six thousand species, amphibians are more diverse than mammals and are found on every continent save Antarctica. Despite the abundance and diversity of these animals, many aspects of the biology of amphibians remain unstudied or misunderstood. The Ecology and Behavior of Amphibians aims to fill this gap in the literature on this remarkable taxon. It is a celebration of the diversity of amphibian life and the ecological and behavioral adaptations that have made it a successful component of terrestrial and aquatic ecosystems. Synthesizing seventy years of research on amphibian biology, Kentwood D. Wells addresses all major areas of inquiry, including phylogeny, classification, and morphology; aspects of physiological ecology such as water and temperature relations, respiration, metabolism, and energetics; movements and orientation; communication and social behavior; reproduction and parental care; ecology and behavior of amphibian larvae and ecological aspects of metamorphosis; ecological impact of predation on amphibian populations and antipredator defenses; and aspects of amphibian community ecology. With an eye towards modern concerns, The Ecology and Behavior of Amphibians concludes with a chapter devoted to amphibian conservation. An unprecedented scholarly contribution to amphibian biology, this book is eagerly anticipated among specialists.
| Author | : Roy W. McDiarmid |
| Publisher | : Univ of California Press |
| Total Pages | : 424 |
| Release | : 2012-01-10 |
| Genre | : Nature |
| ISBN | : 0520266714 |
“Authoritative and comprehensive—provides an up-to-date description of the tool box of methods for inventorying and monitoring the diverse spectrum of reptiles. All biodiversity scientists will want to have it during project planning and as study progresses. A must for field biologists, conservation planners, and biodiversity managers.”—Jay M. Savage, San Diego State University “Kudos to the editors and contributors to this book. From the perspective of a non-ecologist such as myself, who only occasionally needs to intensively sample a particular site or habitat, the quality and clarity of this book has been well worth the wait.”—Jack W. Sites, Jr.
| Author | : Richard C. Bruce |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 506 |
| Release | : 2000-04-30 |
| Genre | : Medical |
| ISBN | : 9780306463044 |
This volume offers a state-of-the-art overview of plethodontid salamanders. Readers will find the best current understanding of many aspects of the evolution, systematics, development, morphology, life history, ecology, and field methodology of these animals.
| Author | : Brenda McComb |
| Publisher | : CRC Press |
| Total Pages | : 300 |
| Release | : 2010-03-11 |
| Genre | : Science |
| ISBN | : 1420070584 |
In the face of so many unprecedented changes in our environment, the pressure is on scientists to lead the way toward a more sustainable future. Written by a team of ecologists, Monitoring Animal Populations and Their Habitats: A Practitioner’s Guide provides a framework that natural resource managers and researchers can use to design monitoring programs that will benefit future generations by distilling the information needed to make informed decisions. In addition, this text is valuable for undergraduate- and graduate-level courses that are focused on monitoring animal populations. With the aid of more than 90 illustrations and a four-page color insert, this book offers practical guidance for the entire monitoring process, from incorporating stakeholder input and data collection, to data management, analysis, and reporting. It establishes the basis for why, what, how, where, and when monitoring should be conducted; describes how to analyze and interpret the data; explains how to budget for monitoring efforts; and discusses how to assemble reports of use in decision-making. The book takes a multi-scaled and multi-taxa approach, focusing on monitoring vertebrate populations and upland habitats, but the recommendations and suggestions presented are applicable to a variety of monitoring programs. Lastly, the book explores the future of monitoring techniques, enabling researchers to better plan for the future of wildlife populations and their habitats. Monitoring Animal Populations and Their Habitats: A Practitioner’s Guide furthers the goal of achieving a world in which biodiversity is allowed to evolve and flourish in the face of such uncertainties as climate change, invasive species proliferation, land use expansion, and population growth.
