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Life history attributes data for Arizona Grasshopper Sparrow (Ammodramus savannarum ammolegus) in Arizona 2013


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Ruth, J.M., 2017, Life history attributes data for Arizona Grasshopper Sparrow (Ammodramus savannarum ammolegus) in Arizona 2013: U.S. Geological Survey data release,


Ammodramus savannarum ammolegus (commonly referred to as the Arizona Grasshopper Sparrow) occurs in the desert and plains grasslands of southeastern Arizona, southwestern New Mexico, and northern Sonora, Mexico. Although a subspecies of conservation concern, this data was produced as part of the first intensive study of its life history and breeding ecology, providing baseline data and facilitating comparisons with other North American Grasshopper Sparrow subspecies. This study is described in the publication listed in the larger work citation of this metadata record.

Child Items (8)


Point of Contact :
Janet M Ruth
Originator :
Janet M Ruth
Metadata Contact :
Colin Talbert
Distributor :
GS ScienceBase
USGS Mission Area :
SDC Data Owner :
Fort Collins Science Center

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Original FGDC Metadata

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The primary objective of this study was to provide baseline data that would address the information gap for this subspecies of conservation concern. Specifically, I estimated basic life history attributes of ammolegus including male mass and morphometric measurements, territory size, and return rates, as well as nest placement and orientation, nest and egg dimensions, clutch size, and nest parasitism rates. The secondary objective of this study was to compare ammolegus morphometric and mass estimates with available data for other Grasshopper Sparrow subspecies.

Additional Information


Type Scheme Key
DOI doi:10.5066/F7C53JCF

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