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Year 2005 Remove constraint 2005: 2005 Subjects rangelands Remove constraint rangelands: rangelands
Displaying items 1 - 10 of 36 start over

1. A Laser Point Frame to Measure Cover

Description:
Includes references
Author:
VanAmburg, L.K. , Booth, D.T. , Weltz, M.A. , Trlica, M.J.
Subject:
rangelands , vegetation cover , measurement , measuring devices , methodology , lasers , botanical composition , sampling , duration , Colorado
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

2. A Visual Obstruction Technique for Photo Monitoring of Willow Clumps

Description:
Includes references
Author:
Boyd, C.S. , Svejcar, T.J.
Subject:
Salix , shrubs , rangelands , dry matter accumulation , plant architecture , photography , grazing , herbivores , plant establishment , height , tree age , leaves , stems , dry matter content , defoliation , environmental monitoring , Oregon
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

3. Annual Wheatgrass: A New Look at an Old Invasive Range Weed

Author:
Young, J.A. , Clements, C.D.
Subject:
weeds , invasive species , introduced species , plant competition , rangelands , Eremopyrum , history , plant characteristics , plant morphology , seed dispersal , seeds , seed germination , ecological invasion , Intermountain West region , Nevada
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

4. Basal sediment concentration measurement using a time domain reflectometry method

Description:
Includes references
Author:
Starr, G.C.
Subject:
sediment yield , runoff , water erosion , time domain reflectometry , stream channels , rangelands , watersheds , watershed hydrology , probes (equipment) , sensors , dielectric properties , Arizona
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

5. Calving system and weaning age effects on cow and preweaning calf performance in the Northern Great Plains

Description:
Includes references
Author:
Grings, E. E. , Short, R. E. , Klement, K. D. , Geary, T. W. , MacNeil, M. D. , Haferkamp, M. R. , Heitschmidt, R. K.
Subject:
beef cows , calves , livestock production , production technology , calving , weaning , animal age , seasonal variation , crossbreds , estrus synchronization , hay , feed supplements , cattle feeding , steers , heifers , grazing , birth weight , liveweight gain , weaning weight , body condition , suckling , feed intake , rangelands , Great Plains region , Montana , Oklahoma
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

6. Cattle and Salmon I: Cattle Distribution and Behavior in a Northeastern Oregon Riparian Ecosystem

Description:
Includes references
Author:
Ballard, T.M. , Krueger, W.C.
Subject:
cattle , Oncorhynchus tshawytscha , salmon , riparian areas , habitats , animal behavior , spatial distribution , pastures , rangelands , stocking rate , locomotion , grazing , resting periods , defecation , drinking , oviposition sites , Oregon
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

7. Cattle and Salmon II: Interactions Between Cattle and Spawning Spring Chinook Salmon (Oncorhynchus tshawytscha) in a Northeastern Oregon Riparian Ecosystem

Description:
Includes references
Author:
Ballard, T.M. , Krueger, W.C.
Subject:
cattle , Oncorhynchus tshawytscha , salmon , riparian areas , habitats , animal behavior , spatial distribution , pastures , rangelands , stocking rate , spring , spawning , breeding season , reproductive behavior , oviposition sites , grazing , Oregon
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

8. Classifying and Mapping Wildfire Severity: A Comparison of Methods

Description:
Includes references
Author:
Brewer, C. Kenneth , Winne, J. Chris , Redmond, Roland L. , Opitz, David W. , Mangrich, Mark V.
Subject:
wildfires , fire severity , spatial distribution , spatial variation , classification , image analysis , principal component analysis , neural networks , analytical methods , data analysis , digital images , remote sensing , satellites , Landsat , spatial data , rangelands , forests , vegetation types , detection , Rocky Mountain region , Great Plains region
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

9. Conditioning Sheep to Graze Duncecap Larkspur (Delphinium occidentale)

Description:
Includes references
Author:
Ralphs, M.H.
Subject:
sheep , food animals , grazing , conditioned behavior , feeding preferences , Delphinium occidentale , poisonous plants , weed control , cattle , rangelands , choice feeding , diterpenoid alkaloids , forage , palatability , feed intake , seasonal variation , Idaho
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

10. Consequences of Selecting Rambouillet Ewes for Mountain Big Sagebrush (Artemisia tridentata ssp. vaseyana) Dietary Preference

Description:
Includes references
Author:
Seefeldt, S.S.
Subject:
ewes , grazing , Artemisia tridentata , feeding preferences , artificial selection , selection criteria , forage , browsing , shrubs , understory , vegetation cover , botanical composition , rangelands , feces , Purshia tridentata , nontarget organisms , adverse effects , steppes , ecosystems , genotype , Idaho
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005