Salamanders: Habitat, Behavior and Evolution


Rashid Gerasimov (Editor)

Series: Animal Science, Issues and Research
BISAC: SCI070010

In Waterton Lakes National Park, located in southwest Alberta, Canada, under-road crossing structures were installed in 2008 to protect a population of long-toed salamander (Ambystoma macrodactylum) at Linnet Lake from mortality during breeding migrations that intersected with the park’s entrance road. This compilation first investigates orientation and movement patterns of marked individuals at Linnet Lake in 2013 and 2014, and at a smaller, shallower wetland Stable Pond in 2014 to document in detail how long-toed salamanders used the terrestrial landscape around breeding sites during adult migration and juvenile dispersal.

Following this, the authors use generalized linear models to model salamander occurrence and abundance in the Beaver Hills region of north-central Alberta as a function of land cover type and pocket gopher density.

The authors go on to address whether any ecological barriers exist in the distribution range of the two newt species N. strauchii and N. crocatus. According to the findings of this study, an identity test was found to be significantly different from the null distribution, whereas a background test was not significantly different from the null distribution.

The concluding chapter summarizes the processes by which light is converted into neural signals by rods and cones and then transmitted to downstream neurons in the retina, with a focus on salamander photoreceptors. The different types of photoreceptor cells and other light-sensitive cells in salamanders and their role in vision are also discussed.
(Imprint: Nova)

Table of Contents

Table of Contents


Chapter 1. Patterns of Migration and Dispersal of Long-Toed Salamanders (Ambystoma macrodactylum Baird) from Two Breeding Sites in the Rocky Mountains of Alberta, Canada
(Matthew R. Atkinson-Adams, Cynthia A. Paszkowski and Garry J. Scrimgeour, Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada)

Chapter 2. Occurrence Patterns of the Western Tiger Salamander (Ambystoma mavortium Baird) in Relation to Upland-Habitat Features at the Northern Limit of Its Range in North-Central Alberta, Canada
(Kyle J. Welsh and Cynthia A. Paszkowski, University of Alberta, Department of Biological Sciences, Edmonton, Alberta, Canada)

Chapter 3. Is there an Ecological Barrier between the Two Species (Strauchii and Crocatus) of Allopatric Spotted Newts of the Genus Neurergus in Turkey? An Overview of the Effect of the Glacier Mountains of Hakkari
(Serkan Gül, Department of Biology, Faculty of Arts and Science, Recep Tayyip, Erdoğan University, Rize, Turkey)

Chapter 4. Photoreceptors of the Salamander
(Justin J. Grassmeyer and Wallace B. Thoreson, Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, NE, US)


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