Uno de los principales problemas que afectan a la biodiversidad es la perdida y fragmentacion del habitat. En muchos casos, esta fragmentacion es consecuencia del levantamiento de nuevas infraestructuras lineales. La carretera M-301 de Madrid incluye el tramo con mayor concentracion de atropellos de anfibios en la Comunidad. Estos atropellos son especialmente numerosos durante la migracion reproductora de los individuos (Se han registrado hasta 400 atropellos en una noche). Se analiza la conectividad de la zona para el sapo comun (Bufo bufo) y el sapo corredor (Bufo calamita) mediante los programas informaticos UNICOR y Circuitscape. Los resultados, como queda demostrado, muestran modelos de rutas muy proximos a la realidad. Finalmente se indican medidas correctoras utiles para anfibios y otros grupos faunisticos. El estudio proporciona herramientas para solucionar posibles problemas de conectividad del territorio que se presenten en futuros levantamientos de infraestructuras."

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Abrege De Grammaire Espagnole. (Methode Uniforme Pour L'enseignement Des Langues). 4 Pascual Hernandez

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.