Search Results - "Westfall, R.D"

Response of Subalpine Conifers in the Sierra Nevada, California, U.S.A., to 20th-Century Warming and Decadal Climate Variability by Millar, Constance I., Westfall, Robert D., Delany, Diane L., King, John C., Graumlich, Lisa J.

“…Four independent studies of conifer growth between 1880 and 2002 in upper elevation forests of the central Sierra Nevada, California, U.S.A., showed correlated…”
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two-generation analysis of pollen pool genetic structure in flowering dogwood, Cornus florida (Cornaceae), in the Missouri Ozarks by Sork, V.L, Smouse, P.E, Apsit, V.J, Dyer, R.J, Westfall, R.D

“…Anthropogenic landscape change can disrupt gene flow. As part of the Missouri Ozark Forest Ecosystem Project, this study examined whether silvicultural…”
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Two-generation analysis of pollen flow across a landscape V: a stepwise approach for extracting factors contributing to pollen structure by Dyer, R.J, Westfall, R.D, Sork , V.L, Smouse, P.E

“…Patterns of pollen dispersal are central to both the ecology and evolution of plant populations. However, the mechanisms controlling either the dispersal…”
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Genetic consequences of forest population dynamics influenced by historic climatic variability in the western USA by Westfall, Robert D, Millar, Constance I

“…We review recent advances in climate science that show cyclic climatic variation over multiple time scales and give examples of the impacts of this variation…”
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Fine-scale genetic structure of whitebark pine (Pinus albicaulis): associations with watershed and growth form by Rogers, D.L. (University of California, Davis, CA.), Millar, C.I, Westfall, R.D

“…The fine-scale genetic structure of a subalpine conifer, whitebark pine (Pinus albicaulis Engelm.), was studied at nested geographic levels from watershed to…”
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Allozyme differentiation and biosystematics of the Californian closed-cone pines (Pinus subsect. Oocarpae) by Miller, C.I, Strauss, S.H, Conkle, M.T, Westfall, R.D

“…Allozyme differentiation at 32 loci was studied in the three Californian species of Pinus subsect. Oocarpae: P. attenuata, P. muricata, and P. radiata, and in…”
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Provenance and progeny variation in growth and frost tolerance of Casuarina cunninghamiana in California, USA by Merwin, Miles L., Martin, Jeanne A., Westfall, Robert D.

“…Field trials of Casuarina cunninghamiana, including 130 open-pollinated families from 13 provenances in New South Wales, Australia, were established in 1987 at…”
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Street Tree Assessment by a Survey Sampling Procedure by Valentine, F.A., Westfall, R.D., Manion, P.D.

“…The structure and composition of street tree populations in Rochester and Syracuse, New York were characterized by survey sampling procedures. Over 7000 trees…”
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Testing Verticillium Wilt Resistance in Urban Norway Maples by Valentine, F.A., Carlson, K.D., Westfall, R.D., Manion, P.D.

“…Wilt symptoms in Norway maple half-sib families from open-pollinated seed from a random of street trees in Rochester and Syracuse, N.Y. inoculated with…”
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Allozyme markers in breeding zone designation by Westfall, R.D. (Institute of Forest Genetics USDA Forest Service, Berkeley, CA (USA). Pacific SW Forest and Range Experiment Station), Conkle, M.T

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