Janet Ruth 201707 tabular digital data https://doi.org/10.5066/F7HQ3XV1 Janet M. Ruth Susan K. Skagen 201708 publication The Condor issue 3, ppg. 469-483 n/a Cooper Ornithological Society http://dx.doi.org/10.1650/CONDOR-16-210.1 These data provide information about vegetation structure and composition associated with Arizona Grasshopper Sparrow territories, nest plots, and random transects on two study sites - Audubon Appleton-Whittell Research Ranch and BLM Las Cienegas National Conservation Area (NCA) - Davis Pasture - in southeastern Arizona. Data were collected from 2009 through 2013. These are data associated with Ruth and Skagen (2017) cited above. The data were collected as part of a study of Arizona Grasshopper Sparrow breeding ecology to understand habitat preferences associated with territories and nest sites. These data can be used to describe the habitat selections of this subspecies on the two study sites. 2009 2013 observed Complete None planned -110.63335418701173 -110.48126220703126 31.710936713375972 31.570930516413465 Southeastern Arizona - Santa Cruz County ISO 19115 Topic Category biota None Arizona Grasshopper Sparrow Ammodramus savannarum ammolegus territory habitat nest site habitat USGS Thesaurus grassland ecosystems birds habitats vegetation USGS Metadata Identifier USGS:59b196a4e4b020cdf7d957e6 None Santa Cruz County Common geographic areas Arizona United States None. Please see 'Distribution Info' for details. None. Users are advised to read the data set's metadata thoroughly to understand appropriate use and data limitations. Janet M Ruth U.S. Geological Survey, SOUTHWEST REGION Research Ecologist mailing address

Biology Department, MSC03 2020

Albuquerque NM 87131 US 505-277-0180 janet_ruth@usgs.gov Bureau of Land Management - funding and site access; Audubon Appleton-Whittell Research Ranch - site access None Ammodramus savannarum ammolegus Kingdom Animalia animals Subkingdom Bilateria Infrakingdom Deuterostomia Phylum Chordata chordates Subphylum Vertebrata vertebrates Infraphylum Gnathostomata Superclass Tetrapoda Class Aves Birds Order Passeriformes Perching Birds Family Emberizidae Emberizid Finches Genus Ammodramus Grassland Sparrows Species Ammodramus savannarum Grasshopper Sparrow Subspecies Ammodramus savannarum ammolegus TSN: 179337 No formal attribute accuracy tests were conducted. No formal logical accuracy tests were conducted. Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable. We conducted summer fieldwork, including nest searching, territory mapping, and vegetation measurements on territory and nest plots and random transects, from late June/early July through August in 2009–2013. We worked on randomly selected representative portions of the 2 study sites: ~50 ha on Audubon Appleton-Whittell Research Ranch and ~67 ha on BLM Las Cienegas NCA - Davis pasture. Territory mapping and vegetation measurements. We used the flushing territory mapping protocol (Wiens 1969) on both sites in all years to document 223 territories of male Grasshopper Sparrows. Method details can be found in Ruth and Skagen (2017). We measured the vegetation within territories by locating the centroid of the territory. We intersected the centroid with 15-m transects in the 4 cardinal directions, and took measurements at the centroid and at 5-, 10-, and 15-m intervals outward along each transect, resulting in 13 sample points per territory. Specific info on vegetation measurements are provided with individual data sets and in Ruth and Skagen (2017). Nest searching and vegetation measurements. We conducted nest searches and monitoring from 2011 to 2013. We searched sites for active nests 3–5 times per week from early July through the end of August. Search techniques included rope dragging, opportunistic foot flushing, behavioral observation, and occasional visual sighting of nests. Once a nest was found, we marked it for relocation. Following fledging or nest failure, we sampled vegetation at the nest and in the nest plot (5-m radius centered on the nest). We typically measured nest vegetation within a week of fledging or failure. For vegetation measurements at and near the nest, we intersected each nest with 5-m transects in the 4 cardinal directions and took measurements at the nest (center of plot) and at 1-, 3-, and 5-m intervals outward along each transect, resulting in 13 sample points per nest plot. Random transect vegetation measurements. To document available vegetation structure by site and year, we randomly located one 1,000-m transect to bisect the study area on each site in each year. We used a random numbers table each year to identify the transect’s starting point and direction, with the requirement that the resultant transect fit within the area of mapped Grasshopper Sparrow territories and monitored nests. We sampled vegetation at 25-m intervals along the transect, resulting in 40 samples per transect. Vegetation measurement protocols are described further in Ruth and Skagen (2017, https://doi.org/10.1650/CONDOR-16-210.1) and Ruth et al. (2014, https://doi.org/10.1894/F07-GDS-13.1). 201307 GS ScienceBase U.S. Geological Survey mailing address

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Digital Data https://doi.org/10.5066/F7HQ3XV1 None 20200820 Janet M Ruth U.S. Geological Survey, SOUTHWEST REGION Research Ecologist mailing address

1 University of New Mexico

Albuquerque NM 87131 US 505-277-0180 janet_ruth@usgs.gov FGDC Biological Data Profile of the CDGSM FGDC-STD-001.1-1999 Record created using USGS Metadata Wizard tool. (https://github.com/usgs/fort-pymdwizard)