Zobrazeno 1 - 10
of 33
pro vyhledávání: '"William S. Alverson"'
Publikováno v:
Canadian Journal of Forest Research. 49:1329-1338
Eastern hemlock (Tsuga canadensis (L.) Carrière) is a shade-tolerant, slow-growing tree once common in forests across the Great Lakes region. It was heavily exploited in the late 19th and early 20th centuries and now experiences limited regeneration
Autor:
William S. Alverson, Rachel H. Toczydlowski, Daijiang Li, Alison K. Paulson, Sarah E. Johnson, Jeannine H. Richards, Grégory Sonnier, Donald M. Waller, Chengke Bai, Kathryn L. Amatangelo
Publikováno v:
Ecology. 103
Wisconsin's plant communities are responding to shifting disturbance regimes, habitat fragmentation, aerial nitrogen deposition, exotic species invasions, ungulate herbivory, and successional processes. To better understand how plant functional trait
Wild Forests presents a coherent review of the scientific and policy issues surrounding biological diversity in the context of contemporary public forest management. The authors examine past and current practices of forest management and provide a co
Publikováno v:
Novon: A Journal for Botanical Nomenclature 26(3):262-268
Kérwá
Universidad de Costa Rica
instacron:UCR
Kérwá
Universidad de Costa Rica
instacron:UCR
We describe and illustrate a new species of Quararibea Aubl. from Costa Rica. Quararibea reflexipetalaCascante, J. Sánchez-Gonz. & W. S. Alverson is distinguished by its pleated petals with strongly reflexed and coiled apices. Quararibea pendula W.
Autor:
William S. Alverson, Jefferson Guedes de Carvalho-Sobrinho, David A. Baum, Aline Costa da Mota, Suzana Alcantara, Luciano Paganucci de Queiroz
Publikováno v:
Molecular Phylogenetics and Evolution. 101:56-74
Bombacoideae (Malvaceae) is a clade of deciduous trees with a marked dominance in many forests, especially in the Neotropics. The historical lack of a well-resolved phylogenetic framework for Bombacoideae hinders studies in this ecologically importan
Publikováno v:
Novon: A Journal for Botanical Nomenclature. 24:115-119
Due to a convoluted taxonomic history, specimens representing a well-known tropical tree species long, but erroneously, associated with the basionym Bombax quinatum Jacq. are found in herbaria and databases under three generic names: Bombacopsis Pitt
Autor:
Marcia J. Waterway, Karen L. Wilson, Sebastian Gebauer, Okihito Yano, Santiago Martín-Bravo, Daniel Spalink, David A. Simpson, Modesto Luceño, Sangtae Kim, Marcial Escudero, Jeremy J. Bruhl, Julian R. Starr, Tomomi Masaki, Eric H. Roalson, Shuren Zhang, P. E. Rothrock, Robert F. C. Naczi, Xiao-Feng Jin, Mónica Míguez, Ana Molina, Andrew L. Hipp, A. A. Reznicek, Matthias H. Hoffmann, Takuji Hoshino, Berit Gehrke, Bruce A. Ford, Pedro Jiménez-Mejías, Tamara Villaverde, William S. Alverson, Leo P. Bruederle, Marlene Hahn, Enrique Maguilla, Jongduk Jung, Kyong-Sook Chung, Wayt Thomas, T. S. Cochrane, Kerry A. Ford
Publikováno v:
Botanical Journal of the Linnean Society. 179:1-42
We are grateful to the John D. and Catherine T. MacArthur Foundation for funding of the Biodiversity Synthesis Group of the Encyclopedia of Life (EOL) project, which funded our BioSynC Synthesis meeting at the Field Museum in Chicago in September 201
Autor:
Marlon C. Machado, Aline Costa da Mota, David A. Baum, William S. Alverson, Jefferson Guedes de Carvalho-Sobrinho
Publikováno v:
Systematic Botany. 39:260-267
Pachira (Malvaceae: Bombacoideae) is distributed predominantly in northern South America and is the largest genus in the subfamily, including about 50 species. Ongoing studies of the systematics of neotropical Bombacoideae and field work in northeast
Autor:
João Semir, Maria von Balthazar, William S. Alverson, Clemens Bayer, Heidrun Janka, David A. Baum
Publikováno v:
Plant Systematics and Evolution. 275:69-91
Androecium development and vasculature were studied in nine species of the Adansonieae clade (core Bombacoideae, Malvaceae s.l.). In early androecium development either distinct pentagonal androecial ring walls or five common petal/androecium primord
Autor:
Heidrun Janka, William S. Alverson, Clemens Bayer, M. von Balthazar, David A. Baum, Jürg Schönenberger
Publikováno v:
Plant Systematics and Evolution. 260:171-197
Androecial development and structure as well as floral vasculature of six selected species of Bombacoideae and of several smaller lineages of the Malvatheca clade (Malvaceae s.l.) were studied. All studied taxa share a similar pattern of androecial d