Download or read book Ecology of the Desert Massasauga Rattlesnake in Colorado written by Stephen P. Mackessy and published by . This book was released on 2007 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology and Natural History of the Desert Massasauga Rattlesnake Sistrurus Catenatus Edwardsii in Southeastern Colorado written by Andrew Richard Wastell and published by . This book was released on 2007 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distribution Abundance and Ecology of the Desert Massasauga Rattlesnake Sistrurus Catenatus Edwardsi written by Andrew T. Holycross and published by . This book was released on 1996 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Desert Massasauga Rattlesnake Sistrurus Catenatus Edwardsii written by Stephen P. Mackessy and published by . This book was released on 2005 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Massasauga Rattlesnake Sistrurus Catenatus in Colorado written by Justin Peter Hobert and published by . This book was released on 1997 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modeling Habitat Ecology and Population Viability of the Eastern Massasauga Rattlesnake in Southwestern Lower Michigan written by Kristin Marie Bissell and published by . This book was released on 2006 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spatial Ecology and Natural History of the Western Massasauga Rattlesnake sistrurus Catenatus Tergeminus in Southeastern Nebraska written by Tracy Jean Patten and published by . This book was released on 2006 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ecology and Morphological Variation of the Massasauga Rattlesnake Sistrurus Catenatus written by Howard Keith Reinert and published by . This book was released on 1978 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reproductive Ecology of the Eastern Massasauga Rattlesnake Sistrurus C Catenatus at Carlyle Lake Illinois written by Benjamin Christopher Jellen and published by . This book was released on 2005 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Landscape Ecology Approaches to Eastern Massasauga Rattlesnake Conservation written by Eric Mitchell McCluskey and published by . This book was released on 2016 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Eastern Massasauga Rattlesnake (Sistrurus catenatus catenatus) is a rare species across its range and is thought to be experiencing widespread population declines. Application of conservation-oriented management practices to this species is hindered by incomplete knowledge of the spatial distribution of populations and suitable habitat. To address this obstacle to conservation efforts I developed species distribution models (SDMs) for northeastern Ohio and Michigan and incorporated the resulting habitat suitability maps (HSMs) in a range of landscape ecology applications. These models were generated using the software program Maxent and a series of environmental variables that represent different elements of Eastern Massasauga habitat association, including vegetation attributes (Landsat derived vegetation indices; LiDAR) and relative elevation (topographic position index). The Maxent model with the best predictive capacity to identify extant northeastern Ohio populations used location data from across the state. The model selected LiDAR data as the top contributing variable. Northeastern Ohio is a priority for Eastern Massasauga conservation in the state so I also conducted an analysis of historical land use and land cover change to better understand the distribution of populations and habitat in this region. I used object-based classification techniques to analyze historical aerial photographs (covering ~75 years) and found that present day populations and suitable habitat largely coincided with abandoned agricultural fields. In the absence of natural disturbance agents, agricultural fields that were allowed to go fallow represented an important source of early successional habitats that are vital to Massasauga. The early successional, open canopy habitats that Eastern Massasauga rely on are not permanent fixtures in this landscape making habitat management a necessity. The Michigan SDM was on a much broader scale than the Ohio modeling effort incorporating 60 populations distributed across the lower third of Michigan. The Michigan SDM selected the topographic position index at a 1 km scale as the best predictor variable. This index uses a digital elevation model to provide information on relative peaks or valleys depending the scale of analysis. Importantly, this variable identified the low lying areas more prone to accumulate water and exhibit the moist conditions Massasauga prefer. The widespread distribution of Massasauga populations in Michigan also presented the opportunity to assess habitat availability and connectivity. Using the HSM from the Michigan SDM, I quantified the number of large, contiguous habitat patches and their protected status. Most were located on private land holdings. I compared least cost path (LCP) distances and distance-weighted metrics using three different resistance layers. I found LCPs based on raw HSM values were shorter than class-weighted HSM or land cover based resistance layers. Therefore conservation planners need to carefully consider the underlying resistance layers they use for connectivity based decisions. I also generated a range-wide SDM under different climate change scenarios to provide a future perspective on Massasauga conservation and evaluate potential shifts in habitat suitability and identify at-risk populations. The climate SDM indicated that southern Massasauga populations appear more at risk to changing conditions that may be unfavorable to the species.

Download or read book American Snakes written by Sean P. Graham and published by JHU Press. This book was released on 2018-02 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: 125 million years ago on the floodplains of North America, a burrowing lizard started down the long evolutionary path of shedding its limbs. The 60-plus species of snakes found in Sean P. Graham's American Snakes have this ancestral journey to thank for their ubiquity, diversity, and beauty. Although many people fear them, snakes are as much a part of America's rich natural heritage as redwoods, bald eagles, and grizzly bears. Neither a typical field guide nor an exhaustive reference, American Snakes is instead a fascinating study of the suborder Serpentes. Brimming with intriguing and unusual stories- of hognose snakes that roll over and play dead, blindsnakes with tiny vestigial lungs, rainbow-hued dipsadines, and wave-surfing sea-snakes- the text is interspersed with scores of gorgeous full-color images of snakes, from the scary to the sublime.

Download or read book Eastern Massasauga Rattlesnake Population and Habitat Ecology in Southern Michigan written by Stephanie Anne Shaffer and published by . This book was released on 2018 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology of Colorado Mountains to Arizona Deserts written by Helen Moenke and published by . This book was released on 1971-01-01 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology of the Grand Canyon Rattlesnake Crotalus Viridis Abyssus in the Little Colorado River Canyon written by Robert Nelson Reed and published by . This book was released on 2002 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology of the Grand Canyon Rattlesnake Crotalus Viridis Abyssus in the Little Colorado River Canyon written by Robert Nelson Reed and published by . This book was released on 1995 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Guide to the Rattlesnakes of the United States written by Brian Hubbs and published by . This book was released on 2009 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence of Environmental Factors on Nocturnal Activity of Snakes in the Colorado Desert written by Aaron Lotz and published by . This book was released on 2002 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: