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University of Arizona (1966)

Avian utilization of desert waterholes

Gubanich, Alan A.(Alan Andrew)

Titre : Avian utilization of desert waterholes

Auteur : Gubanich, Alan A.(Alan Andrew)

Université de soutenance : University of Arizona

Grade : Master of Science (MS) 1966

Résumé
During the summer of 1965 three waterholes were observed in southern Arizona to see how they were utilized by the avifauna of the surrounding areas. Some species of birds, such as the White-winged Dove and Mourning Dove, were constant visitors at the waterholes and require free water to survive in their desert habitat. Other desert species, such as the Verdin, Black-tailed Gnatcatcher, and Cactus Wren, are not dependent upon this free water for their survival. A number of tran sient birds use waterholes while migrating through the area. Temperature influences the doves’ utilization of the waterholes. During cool periods they do not appear to visit free water as often as during hot periods. Rainfall causes a marked decrease in the number of birds drinking at the waterholes. The birds are then apparently utilizing pothole water. White-winged Doves and Mourning Doves will water frequently, probably every day. Individual doves will some times drink as often as three or four times in one day ; most drink only once or twice in the same day. They will utilize more than one waterhole and may travel as far as twelve miles to reach water.

Mots clés : Hydrology. ; Birds — Behavior — Arizona. ; Desert ecology — Arizona.

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Page publiée le 10 février 2016, mise à jour le 13 décembre 2017