By L. Lee Grismer
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 Cortés, this booklet provides details at the id, distribution, ordinary historical past, and taxonomy of every species of amphibian and reptile came upon there. initial debts of the lifestyles heritage of a number of the salamanders, frogs, toads, turtles, lizards, and snakes are suggested the following for the 1st time, and several other species that have been nearly unknown to technology are illustrated in complete colour. The publication additionally includes new information on species distribution and at the impact of the remoted panorama of the peninsula and its islands at the evolutionary process.
Much of the data accrued this is provided in biogeographical overviews that ponder the super diversified environments of Baja California in either a modern and a old framework. An unique and significant contribution to technology, this booklet will generate additional learn for years yet to come because it turns into a benchmark reference for either execs and amateurs.
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Additional info for Amphibians and Reptiles of Baja California, Including Its Pacific Islands and the Islands in the Sea of Cortés (Organisms and Environments)
This is easily accounted for by the generally hot and dry climate of Baja California. In fact, of the species of amphibians present, most are restricted to the northwestern portion of the peninsula in cismontane or montane mesic areas or just marginally enter Baja California in the extreme northeast, in association with the Río Colorado and its delta. Only three species of amphibians naturally range into Baja California Sur. Three others, the Bullfrog (Rana catesbeiana), Río Grande Leopard Frog (R.
Interestingly, however, there appear to be no coastal species extending east onto the desert ﬂoor. Apparently desert environments exceed the physiological capabilities of most cismontane species, although coastal environments do not exceed those of some desert species. Another dispersal corridor, known as Valle San José, lies between the Sierra San Miguel to the west and the Sierra San Pedro Mártir to the east. This is a northwest to southeast–tending valley approximately 47 km long. Its northern end is conﬂuent with Valle la Trinidad, and its southern end opens onto the Vizcaíno Region near the southern terminus of the Sierra San Pedro Mártir.
In fact, of the species of amphibians present, most are restricted to the northwestern portion of the peninsula in cismontane or montane mesic areas or just marginally enter Baja California in the extreme northeast, in association with the Río Colorado and its delta. Only three species of amphibians naturally range into Baja California Sur. Three others, the Bullfrog (Rana catesbeiana), Río Grande Leopard Frog (R. berlandieri), and Forrer’s Grass Frog (R. forreri), have been introduced. Much of the herpetofauna of Baja California and the Sea of Cortés occurs in the United States and mainland Mexico, but a large percentage is endemic to Baja California.