نتایج جستجو برای: arboretum species
تعداد نتایج: 548179 فیلتر نتایج به سال:
*Department of Ecology and Evolutionary Biology, University of Michigan Herbarium, 3600 Varsity Drive, Ann Arbor, Michigan 48108-2287, U.S.A.; yDepartment of Botany, California Academy of Sciences, Golden Gate Park, San Francisco, California 94118, U.S.A.; zFlorida Museum of Natural History, Dickinson Hall, University of Florida, Gainesville, Florida 32611, U.S.A.; and §Arnold Arboretum, Harvar...
Understanding that various tree species have characteristics similar to each other, it follows that some type of hierarchical classification scheme could be used to identify species using LIDAR data. Cluster analysis, one of the unsupervised classification methods, was conducted for all individual trees using the k-medoid algorithm. Instead of using one-step cluster analysis, a stepwise cluster...
The hydrocarbon isoprene plays an important role in atmospheric chemistry, particularly in regards to air pollution and climate change. It is important to know why certain plant species emit isoprene and what factors affect its production in order to predict future air quality. Past research has indicated that isoprene aids in coping with heat stress, so it was hypothesized that source latitude...
1 Center for Tropical Forest Science – Arnold Arboretum Asia Program, Harvard University Herbaria, Harvard University, Cambridge, MA 02138, USA; 2 Center for Tropical Forest Science, Smithsonian Tropical Research Institute, P.O. Box 0843-03092, Balboa, Panama, Panama; 3 Thai National Parks Wildlife and Plant Conservation Department, Research Office, Chatuchak, Bangkok 10900, Thailand; and 4 For...
The paper studies the morphology of winter shoots rare species Exochorda serratifolia S. Moore (Rosaceae Juss.) included in Red Book Primorsky Krai (Russian Federation) natural population (Khankaisky district Krai) and culture (the arboretum Mountain Taiga Station Far Eastern Branch Russian Academy Sciences) during 2020-2021. studied morphological features (linear dimensions stem, buds leaf sca...
Arboretum virus (ABTV) and Puerto Almendras virus (PTAMV) are two mosquito-associated rhabdoviruses isolated from pools of Psorophora albigenu and Ochlerotattus fulvus mosquitoes, respectively, collected in the Department of Loreto, Peru, in 2009. Initial tests suggested that both viruses were novel rhabdoviruses and this was confirmed by complete genome sequencing. Analysis of their 11 482 nt ...
Plant fungal pathogens are an increasing emerging threat as climate change progresses. Sphaeropsis sapinea (syn. Diplodia ), the causal agent of tip blight, is a major pathogen pines forestry and ornamental relevance in Europe worldwide. Here, we combined molecular-based field surveys common-garden setting across elevation gradient with historical records, cultivation-based growth experiments m...
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