Producción CyT
Libro
Autoría
CIONE, A. L.
;
Gasparini G.M.
;
SOIBELZON, LEOPOLDO HECTOR
;
TONNI, E. P.
Fecha
2015
Editorial y Lugar de Edición
Springer
ISBN
978-94-017-9791-7
Resumen
Información suministrada por el agente en
SIGEVA
The Great American Biotic Interchange (GABI) between North and South America is one of the most important events in the history of land mammals. The interchange occurred in several phases during more than nine million years. The oldest genera of North American origin in southern South America occur in beds of Late Miocene age. However, the major episodes of mammalian dispersal from North America appear to have occurred from the Marplatan (Latest Pliocene?Early Pleistocene) to the Lujanian (Late...
The Great American Biotic Interchange (GABI) between North and South America is one of the most important events in the history of land mammals. The interchange occurred in several phases during more than nine million years. The oldest genera of North American origin in southern South America occur in beds of Late Miocene age. However, the major episodes of mammalian dispersal from North America appear to have occurred from the Marplatan (Latest Pliocene?Early Pleistocene) to the Lujanian (Late Pleistocene?Early Holocene). In this book, we focus on mammals of southern South America, where the most important and richest localities with fossil vertebrates of Late Miocene?Holocene age were reported. The biotic interchange between the Americas occurred in several phases during more than nine million years. In this book, we focus on mammals of southern South America, where the most important and richest localities with fossil vertebrates of Late Miocene?Holocene Age were reported. We here provide basic information about taxonomic composition, biostratigraphy, climate evolution, continental tectonics, and biogeography for better understanding the GABI. Furthermore, we analyze the chronology and dynamics of the GABI, the evolution of some South American mammalian groups through time, and the Quaternary mammalian extinctions. As the GABI was a complex process, we divide it into ProtoGABI and GABI 1 to 4. The Great American Biotic Interchange (GABI) between North and South America is one of the most important events in the history of land mammals. The interchange occurred in several phases during more than nine million years. We here analyze the chronology and dynamics of the GABI, the evolution of some South American mammalian groups through time, and the Quaternary mammalian extinctions. As the GABI was a complex process, we divide it into ProtoGABI and GABI 1 to 4. In our concept, the extinction of the megafauna by the gatherer/hunters that entered South American during the latest Pleistocene is a part of the GABI. The putative scarce frequency of extinct mammals in archeological sites is discussed. The evolutive relevance of the GABI is reflected in that half of the species living in South America had a North American ancestry. A final process, not included in the GABI, is the remarkable alteration of ecosystems by modern man. Presently, the composition and distribution of almost all autochthonous land mammal faunas are changing dramatically. Moreover, frequently they are replaced with domesticated and/or wild exotic species.
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Palabras Clave
GABISouth Americamammalchronology