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Year 2009 Remove constraint 2009: 2009 Subjects temporal variation Remove constraint temporal variation: temporal variation Subjects history Remove constraint history: history

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1. Anisotropic spread of hemlock woolly adelgid in the eastern United States

Description:: Includes references
Author:: Morin, Randall S. , Liebhold, Andrew M. , Gottschalk, Kurt W.
Subject:: Adelges tsugae , invasive species , geographical distribution , forest habitats , geographical variation , temporal variation , climatic factors , temperature , host plants , Tsuga canadensis , Tsuga caroliniana , plant density , history , Eastern United States
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2009

2. Genetic diversity in the U.S. hard red winter wheat cultivars as revealed by microsatellite markers

Description:: Includes references
Author:: Prasad, B. , Babar, M.A. , Xu, X.Y. , Bai, G.H. , Klatt, A.R.
Subject:: hard red winter wheat , Triticum aestivum , genetic variation , genetic markers , cultivars , plant breeding , microsatellite repeats , genetic polymorphism , alleles , gene frequency , geographical variation , temporal variation , history , statistical analysis , pedigree , cluster analysis , United States , Great Plains region
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2009

3. Marketing time predicts naturalization of horticultural plants

Description:: Includes references
Author:: Pemberton, Robert W. , Liu, Hong
Subject:: ornamental plants , horticultural crops , invasive species , introduced plants , ecological invasion , marketing , plant nurseries , temporal variation , agroecological zones , geographical distribution , growth habit , plant architecture , history , prediction , imports , Florida
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2009

4. Presettlement and modern disturbance regimes in coast redwood forests: Implications for the conservation of old-growth stands

Description:: Includes references
Author:: Lorimer, Craig G. , Porter, Daniel J. , Madej, Mary Ann , Stuart, John D. , Veirs, Stephen D. , Norman, Steven P. , O'Hara, Kevin L. , Libby, William J.
Subject:: Sequoia sempervirens , coastal forests , forest management , forest trees , forest stands , age structure , lightning , fires , wind , storms , floods , slope , forest succession , canopy gaps , fire regime , landslides , history , frequency , temporal variation , spatial variation , old-growth forests , soil erosion , California
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2009