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Journal Article

The Snowy Plover in Southeastern Oregon and Western Nevada (El Playero Charadrius alexandrinus en la Parte Sureste de Oregon y el Oeste de Nevada)

Steven G. Herman, John B. Bulger and Joseph B. Buchanan
Journal of Field Ornithology
Vol. 59, No. 1 (Winter, 1988), pp. 13-21
Published by: Wiley on behalf of Association of Field Ornithologists
Stable URL: http://www.jstor.org/stable/4513286
Page Count: 9
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
The Snowy Plover in Southeastern Oregon and Western Nevada (El Playero Charadrius alexandrinus en la Parte Sureste de Oregon y el Oeste de Nevada)
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Abstract

In 1980, we searched for Snowy Plovers (Charadrius alexandrinus) in an area of $130,000\ {\rm km}^{2}$ in southeastern Oregon and western Nevada. We found 2016 adult Snowy Plovers at 23 sites. Plovers were consistently associated with water and occurred on bare or sparsely vegetated alkaline substrates. We found 72 nests; nesting was documented at all but 3 sites. One hundred and fifty-four broods were found and brood size averaged 2.4 in younger broods, 1.6 in older broods. In the 1980s, rising water levels in the northern Great Basin eliminated much Snowy Plover nesting habitat. /// Durante el 1980 examinamos un área de $130,000\ {\rm km}^{2}$ en el sureste de Oregon y oeste de Nevada en búsqueda del playero Charadrius alexandrinus. Encontramos 2016 aves adultas en 23 localidades. Pudimos asociar consistentemente los playeros con agua y estos aparecieron en sustratos alcalinos desnudos o parcialmente cubiertos con vegetación. Encontramos 72 nidos en todas las localidades a excepción de 3 de éstas. Un total de 154 parvadas de polluelos fueron localizadas. El tamaño promedio de las parvadas varió con la edad de los polluelos. En aves con edad menor a 15 días, el tamaño promedio de la parvada resultó ser de 2.4 individuos mientras que en polluelos mayores de 15 días se redujo a 1.6. Un aumento en el nivel del agua durante el 1980 eliminó gran parte del habitación de anidamiento de estos playeros en la Gran Cuenca del norte.

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