Bondad del análisis bioclimático en estudios paleoambientales de faunas de mamíferos tropicales
Loading...
Official URL
Full text at PDC
Publication date
2007
Advisors (or tutors)
Journal Title
Journal ISSN
Volume Title
Publisher
Diputación Provincial de Cuenca
Citations
Exportar
Citation
Abstract
Este trabajo plantea un primer acercamiento a la problemática derivada de la posible pérdida de especies asociada a los procesos tafonómicos que se dan en los yacimientos de fósiles. Pretendemos determinar la posible utilidad del análisis bioclimático como metodología aplicable en Paleoecología, pues podría suponerse que si eliminamos especies en una comunidad se podrían producir cambios significativos en su estructura que convertirían en no funcional esta metodología. El análisis se ha llevado a cabo sobre ocho comunidades de mamíferos actuales de ambientes tropicales y subtropicales: Medan (Sumatra), Tumaco (Colombia), Jaipur (India), Catamarca (Argentina), Arica (Chile), Mascate (Omán), Puerto Montt (Chile) y Kagoshima (Japón). En cada comunidad se han eliminado progresivamente especies de forma aleatoria. Los resultados obtenidos mediante análisis estadístico de χ2 nos han permitido concluir que el análisis bioclimático resulta una metodología útil en Paleoecología, siempre y cuando la pérdida de especies no sea excesivamente elevada (desaparición del 50-85% de las especies originales).
In this work we propose a first approach to an issue that relates the potential loss of species associated to taphonomic processes occurring in fossil sites. We attempt to determine the possible utility of bioclimatic analysis as a suitable methodology in Paleoecology. If a number of species are removed from a community, significant changes in its structure might appear which would make this palaeoecological technique dysfunctional. The analysis has been carried out with the data from eight modern mammalian communities from tropical and subtropical environments: Medan (Sumatra), Tumaco (Colombia), Jaipur (India), Catamarca (Argentina), Arica (Chile), Mascate (Oman), Puerto Montt (Chile) and Kagoshima (Japan). On each community we have deleted species randomly. The results from χ2 analyses have allowed us to conclude that the methodology is useful in Palaeoecology since it is functional with a satisfactory level of confidence, as long as the species loss is not excessively elevated (removal of 50-85% of the original species).
In this work we propose a first approach to an issue that relates the potential loss of species associated to taphonomic processes occurring in fossil sites. We attempt to determine the possible utility of bioclimatic analysis as a suitable methodology in Paleoecology. If a number of species are removed from a community, significant changes in its structure might appear which would make this palaeoecological technique dysfunctional. The analysis has been carried out with the data from eight modern mammalian communities from tropical and subtropical environments: Medan (Sumatra), Tumaco (Colombia), Jaipur (India), Catamarca (Argentina), Arica (Chile), Mascate (Oman), Puerto Montt (Chile) and Kagoshima (Japan). On each community we have deleted species randomly. The results from χ2 analyses have allowed us to conclude that the methodology is useful in Palaeoecology since it is functional with a satisfactory level of confidence, as long as the species loss is not excessively elevated (removal of 50-85% of the original species).