Download or read book The Effects of Environmental Temperature on Locomotor Performance and Growth Patterns in Spotted Salamander Ambystoma Maculatum written by Suellen Almeida and published by . This book was released on 2010 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Developmental Temperature on Morphology and Locomotor Performance in the Salamander Ambystoma Maculatum written by and published by . This book was released on 2004 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Acclimation and Assay Temperature on Properties of Ambystoma Maculatum Liver Lactate Dehydrogenase written by Mark Charles Lewis and published by . This book was released on 1983 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many temperate zone ectotherms that face potentially large changes in body temperature with ambient temperature fluctuations have evolved mechanisms whereby metabolism can be maintained at relatively constant rates. Recent research has revealed adaptive adjustments of enzymes that allow the reaction to be maintained at life supporting rates throughout the range of environmental temperatures. The purpose of this study was to investigate any such properties of liver lactate dehydrogenase from the spotted salamander, Ambystoma maculatum (Shaw), a species which breeds in water temperatures of 5° to 10°C. The effects of acclimation and assay temperature on enzyme-substrate (E-S) affinity (Km), substrate inhibition, and Q10 of the pyruvate reduction reaction were determined for animals acclimated to 5°, 10°, 15°, and 20°C at assay temperatures of 5°, 10°, 15°, and 20°C.
Download or read book The Effects of Parasites Metals and Environmental Conditions on Spotted Salamander Ambystoma Maculatum Populations Breeding in Northern Arkansas written by Heather M. DeMali and published by . This book was released on 2014 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Acid Precipitation on the Larval Development of the Spotted Salamander Ambystoma Maculatum written by Robert W. Ling and published by . This book was released on 1985 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Behavioral Activity and Feeding Patterns of the Spotted Salamander Ambystoma Maculatum written by Jessica Michelle Fahey and published by . This book was released on 2007 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Adaptation to Acidification in Spotted Salamanders Ambystoma Maculatum written by Nicholas Gervais and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Declines in amphibian populations have been noted since the late 1980's with many of the causes linked to habitat contamination and destruction by natural and anthropogenic sources. Amphibians with bi-phasic life histories have been thought to be particularly vulnerable to negative environmental conditions but there is much evidence of their resilience and capacity to survive in degraded or contaminated environments. Larval amphibians in small permanent or ephemeral ponds may be particularly vulnerable to altered environmental conditions and may face the greatest pressure to adapt. In Chapter 1, I briefly review the evidence of amphibian declines and how populations may adapt to and overcome assorted negative environmental factors. In Chapter 2, I investigated the phenomenon of adaptation in a particular circumstance. I collected Spotted Salamander (Ambystoma maculatum) egg masses from a population breeding in a naturally acidic pond called Bat Lake, as well as four other populations living in lakes closer to pH neutral. To determine if the salamanders were adapted to their particular breeding lakes, I used common garden experiments in the lab where I raised larvae from each of the lakes in the waters from all the other lakes, as well as their own and compared the survival rates, size at metamorphosis and time to metamorphosis. Bat Lake larvae grew larger and survived longer in their acidic native breeding pond water than in the waters of other lakes suggesting they are adapted to their native pond waters. The larvae from the other lake populations showed similar results and fared better in their native waters than in the Bat Lake water. Based on these results, in Chapter 3, I tested if pH, specifically, was causal. I raised larvae from the five populations in waters of different pH (4.0, 5.5, 7.0), reasoning that if the Bat Lake population was more adapted to the high acidity compared to the other populations, the larvae from Bat Lake should demonstrate higher fitness correlates at lower pH than larvae of other populations. In this experiment, the Bat Lake larvae survived longer and grew larger in the highly acidic water than did larvae from the other populations. My results are consistent with natural selection for tolerance of low pH conditions tolerance among Bat Lake Spotted Salamander larvae and indicate that the salamanders from Bat Lake potentially exhibit signs of local adaption to the highly acidic conditions in which they live. This study was unable, however to prove whether this adaptation was due to evolutionary change, phenotypic plasticity, maternal effects or some other unknown factor. " --
Download or read book Ontogeny of Escape Swimming Performance in the Spotted Salamander Ambystoma Maculatum written by Tobias Landberg and published by . This book was released on 2004 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amphibian Declines written by Michael J. Lannoo and published by Univ of California Press. This book was released on 2005-06-15 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The Effects of Acid Precipitation Upon the Hatching Rate of the Eggs and the Survival Rate of the Larvae of the Spotted Salamander Ambystoma Maculatum written by Karen Markel Howser and published by . This book was released on 1979 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Physiology of the Amphibians written by Martin E. Feder and published by University of Chicago Press. This book was released on 1992-10-15 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: Through its emphasis on recent research, its many summary tables, and its bibliography of more than 4,000 entries, this first modern, synthetic treatment of comparative amphibian environmental physiology emerges as the definitive reference for the field. Forty internationally respected experts review the primary data, examine current research trends, and identify productive avenues for future research.
Download or read book Some Effects of Environmental Temperature on Selected Temperature and Growth of Lemmings and House Mice written by E. Ann Falls and published by . This book was released on 1956 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Temperature Effects on Consumer resource Species Interactions written by Lauren Elizabeth Culler and published by . This book was released on 2013 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change is altering the thermal environment for populations at all trophic levels and thus the response of any given population to warming can only be understood in the context of species interactions. Consumer-resource species interactions (e.g., predator-prey, plant-herbivore) are a ubiquitous and fundamental unit of ecological systems and determine much of the flux of energy through communities and ecosystems. In the research presented here, I integrate theories, knowledge, and techniques from thermal physiology into a community context to test how climate warming shapes consumer-resource species interactions. Given the magnitude of thermal changes occurring globally, integrating multiple fields is required for adequately testing and predicting ecological response to climate change. Temperature effects consumer-resource interactions via changes to the phenology of the interacting species and rates involved with the interaction, e.g., predation rate. Using an Arctic aquatic insect predator-prey system, I tested how temperature shaped phenology and interaction rates and evaluated the combined effects on prey population dynamics. In contrast to previous studies, warming had positive effects on prey survival. Although warming increased prey mortality from predation, prey developed more quickly and were exposed to predators for fewer days, thus increasing their probability of survival. Temperature affects several physiological and behavioral processes of consumer-resource interactions. These same processes are also shaped by other factors such as predation risk. I tested how temperature and predation risk affected digestive physiology and growth rates of a predaceous damselfly. Results indicated that temperature strongly shaped consumption, metabolic, and growth rates but these effects were modified by predation risk such that warming-induced increases in consumer performance were reduced. Last, I used a long-term temperature dataset from a northern NH watershed to show that freshwaters, while sensitive to changes in air temperature, may also buffer some degree of air temperature change. Given the rapidly increasing global air temperatures and the temperature effects on freshwater ecological dynamics that were measured in the first two projects, understanding how water temperatures change as air temperatures change is imperative for predicting the effects of climate change on freshwaters as a human-natural couple system.
Download or read book Effects of Acid Precipitation on Embryonic Mortality of Spotted Salamanders Ambystoma Maculatum and Jefferson Salamanders Ambystoma Jeffersonianum in the Connecticut Valley of Massachusetts written by Robert Peter Cook and published by . This book was released on 1978 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Population Biology of the Spotted Salamander Ambystoma Maculatum Inhabiting Penn State Erie Wetlands written by Pamela Silver and published by . This book was released on 1999 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amphibians of Ohio written by Ralph A. Pfingsten and published by . This book was released on 2013 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Ohio's resident amphibians currently include 25 species and subspecies of salamanders, a complex of unisexual ambystomatid salamanders, and 14 species of frogs and toads. Existing, comprehensive works of amphibians for Ohio are dated and out-of-print. Given this deficiency, and pressured by recent survey and monitoring activity and current research needs, the decision to produce a comprehensive book about Ohio's amphibians, which this volume represents, quickly followed. Focusing on verifiable information about the amphibian species of Ohio, the core of this tome is comprised of 37 chapters, organized by sections on salamanders and on frogs and toads, covering all amphibians in Ohio that have been documented and vouchered. Preceding these taxonomic, species-oriented chapters are sections on the history of herpetological work in Ohio, a summary of the Ohio environment in which its amphibian species exist, informative introductions to amphibian systematics, brief summaries of the two groups, and keys to adult and larval stages. Following the species accounts are sections on potential occurences in Ohio; on species ranking based on conservation status and knowledge; on amphibian conservation; on amphibian distribution; on environmental applications; and, a summary. Completing the book are two appendices involving field and vouchering/documentation techniques, a glossary, a combined and comprehensive listing of cited literature, and an index. This book is both scientifically accurate and written in a style suitable for the complete spectrum of individuals and entities who are professionally or casually involved or interested in amphibians"--Abstract, page iii.
Download or read book The Effects of Changes in Temperature and Hydration on the Locomotor Performance and Metabolism of Two Puerto Rican Frogs written by Katherine Nieves Puigdoller and published by . This book was released on 2000 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
