Evaluación de la idoneidad de hábitat, composición de la dieta y estructura del paisaje en una población aislada de lince ibérico (Lynx Pardinus Temmnick, 1827) en el centro peninsular
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2021
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11/06/2020
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Universidad Complutense de Madrid
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Abstract
Actualmente el lince ibérico se distribuye en ocho poblaciones situadas al sur de la Península Ibérica. Sin embargo, existen indicios de presencia de pequeñas poblaciones dispersas en el centro peninsular. El último registro oficial de una población en la Comunidad de Madrid (CM) fue en la zona del alto Alberche y data de 1992, habiéndose dado por extinta de forma definitiva en el Censo Nacional del año 2002. A pesar de esto, los registros de avistamientos no han dejado de producirse hasta que Cruz et al. (2019) certificaron la presencia del felino mediante un análisis de identificación específica de excrementos recogidos en el campo. A partir de aquí, hemos diseñado y recorrido 21 transectos de forma sistemática durante los años 2015 a 2018, recogiendo aquellos excrementos susceptibles de pertenecer al lince ibérico para su posterior análisis genético. En este periodo hemos obtenido un total de 47 excrementos positivos, coincidiendo, algunos de ellos, en las mismas localidades los cuatro años consecutivos. Por lo tanto, se confirma la presencia estable de una población de linces en el territorio...
The Iberian lynx is currently distributed in eight populations at southern Iberian Peninsula. However, there are signs of the occurrence of small groups in the centre of the Peninsula. Last official record of a lynx population within Madrid province was in the zone known as the ‘Alto Alberche’ in 1992, but in 2002 national census it was definitely regarded as extinct. Nevertheless, reports of Iberian lynx presence in this territory have not ceased in recent years until Cruz et al. (2019) verified the presence of the species through a species-specific genetic identification analysis of field-collected scats. From this point forward, we design 21 transects that were systematically combed between 2015 and 2018, searching and collecting those scats morphologically similar to Iberian lynx scat for their posterior genetic analysis. Throughout these years we collected 47 positive scats, being some of them from same locations over all four consecutive sampled years. Therefore, we show the existence of a stable lynx population in the territory..
The Iberian lynx is currently distributed in eight populations at southern Iberian Peninsula. However, there are signs of the occurrence of small groups in the centre of the Peninsula. Last official record of a lynx population within Madrid province was in the zone known as the ‘Alto Alberche’ in 1992, but in 2002 national census it was definitely regarded as extinct. Nevertheless, reports of Iberian lynx presence in this territory have not ceased in recent years until Cruz et al. (2019) verified the presence of the species through a species-specific genetic identification analysis of field-collected scats. From this point forward, we design 21 transects that were systematically combed between 2015 and 2018, searching and collecting those scats morphologically similar to Iberian lynx scat for their posterior genetic analysis. Throughout these years we collected 47 positive scats, being some of them from same locations over all four consecutive sampled years. Therefore, we show the existence of a stable lynx population in the territory..
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Ciencias Biológicas, Departamento de Biodiversidad, Ecología y Evolución, leída el 11-06-2020