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Showing 1 to 14 of 14 for “"spiza americana"”.
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The Bioenergetics of The Dickcissel, Spiza Americana
Made available in DSpace on 2014-12-10T18:13:18Z (GMT). No. of bitstreams: 1 6402996.pdf: 5022593 bytes, checksum: be7c9fd3c1859896eb57087789f2df3b (MD5) Previous issue date: 1963
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A time budget of the male dickcissel (Spiza americana)
Call number: LD2668 .T4 1969 M33
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A time budget of the male dickcissel (Spiza americana)
Call number: LD2668 .T4 1969 M33
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Incidence, mechanisms, and consequences of adaptive habitat selection by the dickcissel (Spiza americana)
… and reproductive success of dickcissels (Spiza americana) in the Grand River Grasslands of southern Iowa. I first tested for signals of adaptive habitat selection, examining whether male and female birds’ preferences among territories and larger habitat patches improve their ability to …
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Pre- to post-fledging carryover effects and the post-fledging ecology of the Dickcissel (Spiza americana)
… the post-fledging ecology of the Dickcissel (Spiza americana), with emphasis on pre- to post-fledging carryover effects of nestling traits and fledgling habitat use. Specifically, I sought to address the following questions: (1) Do body condition and wing development at fledging predict …
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Nesting Success of Dickcissel (Spiza americana) and Non-breeding Grassland Bird Use of Northwest Arkansas’ Remnant and Restored Tallgrass Prairies
… was to access nest success of the Dickcissel (Spiza americana) at two remnant and two restored tallgrass prairies in Northwest Arkansas. From May-August 2017 and 2018, I found 114 nests that I monitored to determine ultimate fate. I selected vegetative characteristics collected at nest and …
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Resource selection, movement patterns, and survival of post-fledging grassland birds in Missouri
… movement patterns, and survival of dickcissels (Spiza americana) and eastern meadowlarks (Sturnella magna) in southwestern Missouri, from 2002 to 2004 using radio telemetry. Across species at the micro-scale, there was support for the predation hypothesis (both species) and the thermal refuge …
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Breeding Bird Response to Post Oak Savanna Restoration Seven Years Post Management In Eastern Texas
… of savanna obligate species dickcissel (<em>Spiza americana</em>) and lark sparrow (<em>Chondestes grammacus</em>) indicates that the restoration was successful. The presence of savanna species can be linked to the herbaceous vegetation that was restored to more closely resemble historic oak …
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Incubation behavior, embryonic heart rate, and developmental variation within and among altricial bird species
… EHR than the other species, while Dickcissels (Spiza americana) exhibited higher EHR than other species. Eastern Bluebirds also displayed greater nest temperature variation and a lower percent of time on the nest. Hatching failure was more common in cavity nesting species and nests with greater …
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Habitat selection and breeding ecology of grassland birds in areas managed with fire and grazing
… these sites. Among focal species, dickcissels (Spiza americana) selected nest sites with more woody cover, while eastern meadowlarks (Sturnella magna) and grasshopper sparrows (Ammodramus savannarum) selected areas with increased cover of warm-season grasses and litter. Though I observed strong …
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Grassland and breeding bird use of moist-soil wetlands managed for waterfowl
… wetlands, including nesting dickcissels (Spiza americana, a generalist-grassland nester) and grasshopper sparrows (Ammodramus savannarum, an obligate-grassland nester). I also observed the state endangered northern harrier (Circus cyaneus), common gallinule (Gallinula galaeta), and …
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Avian and Aquatic Invertebrate Abundance on Three Agricultural Management Systems in Eastern South Dakota
… (E < 0. 05) in agricultural fields. Dickcissels (Spiza americana) and western meadowlarks (Sturnella neglecta) in 1993 oats and yellow-headed blackbirds (Xanthocephalus xanthocephalus) in 1993 alfalfa were found to be significantly more abundant on the CON system. The remaining B species were …
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Eastern Meadowlark migration, nest success, and response to land use change in Illinois
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms