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Articles 31 - 34 of 34
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A Productivity Model For Parasitized, Multibrooded Songbirds, Larkin A. Powell, Melinda Knutson
A Productivity Model For Parasitized, Multibrooded Songbirds, Larkin A. Powell, Melinda Knutson
School of Natural Resources: Faculty Publications
We present an enhancement of a simulation model to predict annual productivity for Wood Thrushes (Hylocichla mustelina) and American Redstarts (Setophaga ruticilla); the model includes effects of Brown-headed Cowbird (Molothrus ater) parasitism. We used species-specific data from the Driftless Area Ecoregion of Wisconsin, Minnesota, and Iowa to parameterize the model as a case study. The simulation model predicted annual productivity of 2.03 ± 1.60 SD for Wood Thrushes and 1.56 ± 1.31 SD for American Redstarts. Our sensitivity analysis showed that high parasitism lowered Wood Thrush annual productivity more than American Redstart productivity, even though parasitism affected individual nests of …
Impacts Of Irrigation On 20th Century Temperature In The Northern Great Plains, Rezaul Mahmood
Impacts Of Irrigation On 20th Century Temperature In The Northern Great Plains, Rezaul Mahmood
School of Natural Resources: Faculty Publications
No abstract provided.
Puncturing Ability Of Idealized Canine Teeth: Edged And Non-Edged Shanks, Patricia W. Freeman, Cliff A. Lemen
Puncturing Ability Of Idealized Canine Teeth: Edged And Non-Edged Shanks, Patricia W. Freeman, Cliff A. Lemen
School of Natural Resources: Faculty Publications
Idealized edged and non-edged indenters, mimicking canine teeth, were used to puncture thin materials and thick materials. Less force was needed for the edged (triangular in cross section) indenter to penetrate thin Mylar, paper, leather, beetle elytra and turkey skin than the non-edged (circular in cross-section) indenter. Oak, grass and magnolia leaves responded equally to both indenters. In thick materials, the edged indenter punctured beetles, shrimp, bananas, and chicken flesh more easily than the non-edged indenter. Apple, tomato and avocado were punctured equally well. The edged indenter directs cracks at the corners so that the material can fold away in …
The Geoprofile Metadata, Exposure Of Instruments, And Measurement Bias In Climatic Record Revisited, Rezaul Mahmood
The Geoprofile Metadata, Exposure Of Instruments, And Measurement Bias In Climatic Record Revisited, Rezaul Mahmood
School of Natural Resources: Faculty Publications
No abstract provided.