Determination Of Age And Growth Patterns In Wood Turtles Glyptemys Insculpta
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Determination Of Age And Growth Patterns In Wood Turtles Glyptemys Insculpta
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Author : O'Connell, William T.
language : en
Publisher:
Release Date : 2018
Determination Of Age And Growth Patterns In Wood Turtles Glyptemys Insculpta written by O'Connell, William T. and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Biology categories.
An Analysis Of Wood Turtle Glyptemys Insculpta Growth Rings
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Author : Christine B. Robichaud
language : en
Publisher:
Release Date : 2006
An Analysis Of Wood Turtle Glyptemys Insculpta Growth Rings written by Christine B. Robichaud and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Wood turtle categories.
Evaluating The Effectiveness Of Headstarting For Wood Turtle Glyptemys Insculpta Population Recovery
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Author : Damien I. Mullin
language : en
Publisher:
Release Date : 2019
Evaluating The Effectiveness Of Headstarting For Wood Turtle Glyptemys Insculpta Population Recovery written by Damien I. Mullin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
Headstarting is a conservation strategy that assumes raising hatchling turtles to larger body sizes increases their survivorship compared to wild non-headstarted turtles. This increased survivorship should increase population growth rate relative to wild recruitment. There are, however, few published results of long-term population recovery using headstarting. The lack of demographic assessment of population recovery has led to an overall lack of quantitative assessment of the effectiveness of headstarting as a conservation action. Headstarting needs to be efficient and effective as a poorly executed headstarting project can result in species extinction given it is often used with critically endangered species. We released 3 cohorts of headstarted Wood Turtles (Glyptemys insculpta) with varying degrees of headstarting to determine if headstarting increases survivorship. I showed that headstarting turtles to a larger body size confers a survival advantage, and this survival advantage should increase population growth rate relative to wild recruitment. I then quantitatively assessed the effectiveness of a 15-year Wood Turtle headstarting program by modeling population-specific demographic parameters to evaluate recovery efforts, and determine the next phase of recovery. I found some evidence of population recovery, but also identified challenges and make several management recommendations that should enhance the success of the headstarting program. Overall, I have provided support for headstarting as an effective conservation strategy, with the caveat that all headstarting projects must be paired with management plans that maintain high adult and juvenile survival.
Turtles Of The United States And Canada
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Author : Carl H. Ernst
language : en
Publisher: JHU Press
Release Date : 2009-06-15
Turtles Of The United States And Canada written by Carl H. Ernst and has been published by JHU Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-06-15 with Nature categories.
Winner, 2011 Book Award, The Wildlife Society2009 Outstanding Academic Title, Choice Ernst and Lovich’s thoroughly revised edition of this classic reference provides the most updated information ever assembled on the natural histories of North American turtles. From diminutive mud turtles to giant alligator snappers, two of North America’s most prominent experts describe the turtles that live in the fresh, brackish, and marine waters north of Mexico. Incorporating the explosion of new scientific information published on turtles over the past fifteen years—including the identification of four new species—Ernst and Lovich supply comprehensive coverage of all fifty-eight species, with discussions of conservation status and recovery efforts. Each species account contains information on identification, genetics, fossil record, distribution, geographic variation, habitat, behavior, reproduction, biology, growth and longevity, food habits, populations, predators, and conservation status. The book includes range maps for freshwater and terrestrial species, a glossary of scientific names, an extensive bibliography for further research, and an index to scientific and common names. Logically organized and richly illustrated—with more than two hundred color photographs and fifty-two maps—Turtles of the United States and Canada remains the standard for libraries, museums, nature centers, field biologists, and professional and amateur herpetologists alike.
The Amphibians And Reptiles Of Michigan
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Author : J. Alan Holman
language : en
Publisher: Wayne State University Press
Release Date : 2012
The Amphibians And Reptiles Of Michigan written by J. Alan Holman and has been published by Wayne State University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Nature categories.
Holman uniquely bridges the gap between neo- and paleoherpetology and shows that Michigan's modern herpetofaunas reflect Pleistocene (ice age) and Holocene (warm period after the ice age) events, as the entire modern population was forced to re-invade the state after the last withdrawal of ice. In Part 1, Holman discusses Michigan as an amphibian and reptile habitat, including a geological, climatic, and vegetational history. Part 2 presents recent species accounts, covering all fifty-four species of amphibians and reptiles, along with their general distribution, Michigan distribution (with range maps), geographic variation, habitat and habits, reproduction and growth, diet, predation and defense, interaction with humans, behavioral characteristics, population health, and general remarks. In Part 3, Holman examines the Michigan herpetofauna in Quaternary and recent historical times and the species accounts include Pleistocene, Holocene, and archaeological records.
Reptile Biodiversity
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Author : Roy W. McDiarmid
language : en
Publisher: Univ of California Press
Release Date : 2012-01-10
Reptile Biodiversity written by Roy W. McDiarmid and has been published by Univ of California Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-10 with Nature categories.
“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.
Age Determination In Turtles
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Author : George R. Zug
language : en
Publisher: Society for the Study of Amphibians & Reptiles
Release Date : 1991
Age Determination In Turtles written by George R. Zug and has been published by Society for the Study of Amphibians & Reptiles this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Nature categories.
Navigating The Thermal Landscape
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Author : Geoffrey Norman Hughes
language : en
Publisher:
Release Date : 2016
Navigating The Thermal Landscape written by Geoffrey Norman Hughes and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Thermal ecology studies of ectotherms, like turtles, have typically focused on a species' thermal preferences and tolerances, or on thermoregulation site selections; only recently have landscape-scale thermal ecology studies been performed. I examined the spatial and nesting ecology of wood turtles in Sudbury District of Ontario, Canada, in a thermal context. I also measured the thermal impacts of natural resource extraction on wood turtle habitat. Wood turtles (Glyptemys insculpta) cover a wide variety of terrestrial and aquatic habitats during their annual cycle, making them ideal for thermo-spatial studies. I tracked movements and thermal use of 15 radio-tagged adult turtles during the active season, comparing their selections to temperature monitoring stations spread in an array across the study area, to determine if the turtles are navigating a thermal landscape. Temperature had minimal influence on home range-scale movements, but possibly influenced movements at a smaller spatial scale. I compared the thermal landscape (using thermal imagery), soil moisture, and grain size distribution of 3 nesting beaches to determine the strongest predictor of nest-searching behaviour. Temperature range appeared to be an important cue, but females were apparently using a suite of cues to select their nest sites. I mapped the thermal landscapes of six sites: two relatively undisturbed wood turtle habitat sites, two recently-harvested forestry sites, and two active gravel pits, to find the effects of resource harvesting on wood turtle habitat. The undisturbed sites were cooler and less variable than the disturbed sites, and provided higher-quality thermal habitat. My results support the findings of previous studies: that temperature is a stronger driver of turtle behaviour at the micro-habitat scale than the home range scale, and that soil temperature co-varies with soil structural variables at the micro-habitat scale. The data from the habitat mapping provide useful information for conservation efforts when mitigating or rehabilitating wood turtle habitat.
Using Environmental Dna To Determine Wood Turtle Glyptemys Insculpta Presence In New Brunswick Canada Rivers
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Author : Larissa Roehl
language : en
Publisher:
Release Date : 2019
Using Environmental Dna To Determine Wood Turtle Glyptemys Insculpta Presence In New Brunswick Canada Rivers written by Larissa Roehl and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Wood turtle categories.
Worldwide turtle and tortoise populations are declining, including the semi-aquatic wood turtle (Glyptemys insculpta) of eastern North America. With a limited survey season, a more efficient method of detection was needed to monitor this cryptic species. DNA barcoding with environmental DNA (eDNA) has been shown to be an effective method of monitoring cryptic, rare, and threatened species. Water samples were collected in October 2017 and 2018 from an upstream and downstream site on fourteen rivers in New Brunswick, Canada. In our eDNA lab, the samples were filtered, extracted and, with the use of species-specific primers and probe, amplified using quantitative polymerase chain reaction (qPCR). With the use of qPCR, wood turtle eDNA was detected in five of six rivers known to inhabit the species. This method is a promising tool that can be used for the conservation and monitoring of G. insculpta.
Turtles Of The United States
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Author : Carl H. Ernst
language : en
Publisher:
Release Date : 1972
Turtles Of The United States written by Carl H. Ernst and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Nature categories.