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The Importance of Geographical Variation in the Diet of Tyto alba Scopoli in Central Spain
Andres Barbosa, Maria Jose Lopez-Sanchez and Angel Nieva
Global Ecology and Biogeography Letters
Vol. 2, No. 3 (May, 1992), pp. 75-81
Published by: Wiley
Stable URL: http://www.jstor.org/stable/2997509
Page Count: 7
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The influence of ecological factors on diet variation in Tyto alba is studied, and their biogeographical significance is assessed. The results show that bioclimatic and biogeographical factors, such as altitude, latitude, and longitude, have a greater importance than habitat factors, like vegetation mosaics, where there is a significant geographical element, such as a mountain barrier. The results also indicate that microhabitat factors are of importance.
Global Ecology and Biogeography Letters © 1992 Wiley