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

By L. Lee Grismer

ISBN-10: 0520224175

ISBN-13: 9780520224179

The Baja California peninsula is domestic to many types of existence chanced on nowhere else in the world. This, mixed with the peninsula's rugged and inaccessible terrain, has made the world one of many final precise organic frontiers of North the US. L. Lee Grismer isn't just the main authority at the amphibians and reptiles of Baja California, but additionally an exceptional photographer. He has produced the main accomplished paintings at the herpetofauna of the peninsula and its islands ever released. With its gorgeous colour pictures, exact money owed of many little-known species, and outlines of the region's varied atmosphere, this is often the definitive consultant to the amphibians and reptiles of a desirable and distant region.The fruits of Grismer's region century of fieldwork at the Baja peninsula and his exploration of multiple hundred of its islands within the Pacific Ocean and the ocean of Cort?s, this ebook offers details at the identity, distribution, normal background, and taxonomy of every species of amphibian and reptile discovered there. initial money owed of the existence background of the various salamanders, frogs, toads, turtles, lizards, and snakes are suggested right here for the 1st time, and a number of other species that have been virtually unknown to technology are illustrated in complete colour. The e-book additionally comprises new information on species distribution and at the influence of the remoted panorama of the peninsula and its islands at the evolutionary approach. a lot of the data amassed this is provided in biogeographical overviews that ponder the super diversified environments of Baja California in either a latest and a ancient framework. An unique and significant contribution to technology, this booklet will generate additional learn for future years because it turns into a benchmark reference for either pros 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)

Sample text

Members of this group usually range throughout many phytogeographic regions and show little geographic variation. The limiting factor of their distribution seems to be the presence of rock, and the species of this group are usually endemic to Baja California. There is a Southern Xerophilic Group that is also composed entirely of endemic species. Its members are widespread in the more southern, xeric regions of the peninsula but do not enter the Lower Colorado Valley Region of the northeast or the northern mesic areas.

This uplift may have forced the Gulf to recede to its present position and provided a mesic corridor through which these species could disperse southward. The fact that they generally dispersed no further south than El Rosario was likely the result of the simultaneous formation of the arid Vizcaíno Region, which would have served as an effective xeric barrier to the dispersal of these mesophilic forms, just as it does today. The closest relatives of these forms are found in the Pacific Northwest and central United States.

12) are characteristic of some of the deeper canyons and arroyos in these volcanic badlands, and there the dominant species are the Mexican Fan Palm (Washingtonia robusta) and Palma Palmía (Brahea brandegeei). West of the Comondú area, the Magdalena Region opens up into the Magdalena Plain, which constitutes the region’s western section. This section occupies nearly half the width of the southern third of Baja California. Here the volcanic fields become less complex along the fringe of the western foothills of the Sierra la Giganta and eventually give way to a low, flat, open and extensive sandy plain that borders the Pacific Ocean.

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Amphibians and Reptiles of Baja California, Including Its Pacific Islands and the Islands in the Sea of Cortes (Organisms and Environments) by L. Lee Grismer

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