Distribution, habitat of White-winged Snowfinch (Montifringilla nivalis) in Central Pyrenees (Aragon-Spain)
With the implementation of the Ornithological Atlas of Aragon, only a first approximation of status, distribution, habitat and abundance of the breeding population of the White-winged Snowfinch (Montifringilla nivalis) was generated in the Central Pyrenees (Aragón-Spain). In this article we have add...
| Published in: | Graellsia |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | Spanish |
| Published: |
Consejo Superior de Investigaciones Científicas
2018
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| Subjects: | |
| Online Access: | https://pirineos.revistas.csic.es/index.php/pirineos/article/view/295 https://doi.org/10.3989/pirineos.2018.173006 |
| Summary: | With the implementation of the Ornithological Atlas of Aragon, only a first approximation of status, distribution, habitat and abundance of the breeding population of the White-winged Snowfinch (Montifringilla nivalis) was generated in the Central Pyrenees (Aragón-Spain). In this article we have added, reviewed and updated information on the distribution, habitat and population of the White-winged Snowfinch in Aragón. In total 88 observations were made during the breeding season (May-August) between 1986-2015. The breeding sectors were located at an average of 2,446 ± 310 m.s.n.m. and 38.6% of records were made in areas with basic rocks. Numbers have increased in 43.4% of the distribution, compared to the data contained in the Atlas of Aragón 1998. The species is present in all the mountain ranges of the Aragonese Pyrenees, with the exception of Turbón and Acherito. Its presence is proven in an area of 76 km2, in which a total of 262 breeding pairs have been located. The potential occupation area is 658 km2, in which 1,823 pairs have been estimated, with an average density of 2.77 pp./ km2. With the information obtained from the species in Aragón (3.646 breeding individuals), the Alpine Sparrow should be the object of an update of its distribution and population in the Pyrenees (southern slope) and Spain. Con la ejecución del Atlas Ornitológico de Aragón tan solo se generó una primera aproximación de estatus, distribución, hábitat y abundancia de la población reproductora del gorrión alpino (Montifringilla nivalis) en el Pirineo Central (Aragón-España). En el presente artículo se ha revisado, actualizado y obtenido información sobre distribución, hábitat y población del gorrión alpino en Aragón. En total se obtienen 88 observaciones de la época de reproducción (mayo-agosto) entre 1986-2015. Los sectores de cría se sitúan a una media de 2.446 ± 310 m.s.n.m. El 38,6% de los registros se realizan en áreas con rocas básicas. Aumenta en un 43,4% la distribución, según la obtenida en el Atlas de Aragón 1998. Está presente en todos los macizos montañosos del Pirineo aragonés, a excepción de Turbón y Acherito, El área de ocupación con presencia comprobada es de 76 km2, en los que se localizaron un total de 262 parejas reproductoras y el área de ocupación potencial es de 658 km2, en la que se han estimado 1.823 parejas, con una densidad media de 2,77 pp./km2. Con la información obtenida de la especie en Aragón (3.646 individuos reproductores), el gorrión alpino debería ser objeto de una actualización de su distribución y población en los Pirineos (vertiente Sur) y España. |
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