July 15, 2017

Download Amphibians and Reptiles of Baja California, Including Its by L. Lee Grismer PDF

By L. Lee Grismer

The Baja California peninsula is domestic to many kinds of existence discovered nowhere else in the world. This, mixed with the peninsula's rugged and inaccessible terrain, has made the realm one of many final precise organic frontiers of North the USA. L. Lee Grismer isn't just the main authority at the amphibians and reptiles of Baja California, but in addition a good photographer. He has produced the main entire paintings at the herpetofauna of the peninsula and its islands ever released. With its gorgeous colour photos, specified debts of many little-known species, and outlines of the region's varied setting, this is often the definitive consultant to the amphibians and reptiles of a desirable and distant region.The end result of Grismer's sector century of fieldwork at the Baja peninsula and his exploration of a couple of hundred of its islands within the Pacific Ocean and the ocean of Cort?s, this e-book offers details at the identity, distribution, usual historical past, and taxonomy of every species of amphibian and reptile discovered there. initial bills of the lifestyles background of a few of the salamanders, frogs, toads, turtles, lizards, and snakes are suggested the following for the 1st time, and several other species that have been virtually unknown to technological know-how are illustrated in complete colour. The booklet additionally includes new info on species distribution and at the impression of the remoted panorama of the peninsula and its islands at the evolutionary technique. a lot of the data collected here's offered in biogeographical overviews that think of the tremendous diverse environments of Baja California in either a modern and a old framework. An unique and significant contribution to technological know-how, this ebook will generate extra study for years yet to come because it turns into a benchmark reference for either execs and amateurs.

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Extra resources for Amphibians and Reptiles of Baja California, Including Its Pacific Islands and the Islands in the Sea of Cortes (Organisms and Environments)

Example text

Deppe stated, “The peninsula is poor beyond description in living forms of organic life. Neither reptiles nor insects were seen” (quoted in Lichtenstein 1839). These reports remained the most current sources of published information concerning the herpetology of Baja California for nearly half a century. Biological exploration in Baja California and the Sea of Cortés did not really get under way until the early to mid-nineteenth century. The first expeditions were primarily concerned with the collection of plants and birds, and very few amphibians and reptiles were taken.

Species of this group enter Baja California along the Río Colorado and its tributaries. Some are strictly aquatic; others find shelter and food in the vegetation along the watercourses or irrigation canals. None of the members of this group would occur in Baja California if it were not for these water sources. A Northern Transpeninsular Mesophilic Group contains species that are widespread in the mesic California and Baja California Coniferous Forest regions of the north; but as they extend south into the more arid regions of the peninsula, their distributions become highly fragmented and restricted to mesic refugia such as springs, oases, and mountaintops (Grismer 1988a, 1990a; Grismer and McGuire 1993; Grismer and Mellink 1994; Grismer et al.

The first expeditions were primarily concerned with the collection of plants and birds, and very few amphibians and reptiles were taken. The first significant herpetological collections to come out of Baja California were made by L. J. Xantus de Vésey in the Cape Region between 1859 and 1861. During the next twentyfive years or so, great naturalists such as Spencer F. Baird, Lyman Belding, M. P. E. Botta, Townsend S. Brandegee, Walter E. Bryant, Gustav Eisen, William M. Gabb, and others added so significantly to these collections that by 1895 John Van Denburgh was able to publish the first review of the herpetofauna of Baja California and its associated islands.

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