Frontmatter: Några Anmärkningsvärda Salix- Och Betula-Former. Essay: Under Sommaren 1894 Kom Jag Att Fästa Min Uppmärksamhet Vid Ett Par Egendomliga Betula-Former Af B. Nanagruppen, Hvilka ...
1895 - Gale Group | NCCO-STM 1of2
H. Rimpler, H. Kühn, Ch. Leuckert,
... Rahmen einer chemotaxonomischen Untersuchung über die Stellung von Betula carpatica Waldst. et Kit. wurde die Triterpenführung von Betula pendula und Betula pubescens als angenommene Ausgangssippen von Betula carpatica untersucht. Betula pubescens und Betula pendula zeigen hinsichtlich der Triterpenführung der Rinden keine ...
Tópico(s): Plant biochemistry and biosynthesis
1966 - Wiley | Archiv der Pharmazie
Isaac Ott, John V. Shoemaker, Theodore Wm. Schaefer, George A. Hewitt,
... Sweats, Garofen, Diuretic Action of the Leaves of Betula Alba, Salomon's Mixture for Infantile Convulsions, Morbid ...
1898 - Gale Group | NCCO-STM 1of2
... climatic amelioration leads to shrub formations with Hippophaë, Betula nana, and Juniperus; Betula pubescens immigrates but remains very scarce (Hippophaë-Betula nana pollen assemblage zone, see Fig. 2). A ... cooling results in a decrease of shrubs inclusively Betula nana while the Poaceae and Helianthemum increase overproportionally (Helianthemum-Betula nana-paz). A second and rather fast improvement ... and, above all, to a rapid expansion of Betula pubescens to forests (Juniperus-B. nana-B. pubescens- ... resolution consistently show 3 more or less pronounced Betula minima, 2 Populus maxima, and 3 Juniperus maxima ( ...
Tópico(s): Paleontology and Stratigraphy of Fossils
1985 - Elsevier BV | Flora
N. R. Smith, N. R. Smith, M. S. Baer, William Stokes, Edward Joerg, John Redman Coxe,
... with the Green Leaves of the Common Birch, (Betula Alba), Excerpts from the Case Book. By the ...
1834 - Gale Group | NCCO-STM 1of2
P. Staffan Karlsson, K. O. Nordell,
... growth rates of seedlings of the deciduous tree Betula pubescens ssp. tortuosa (Ledeb.) Nyman and the evergreen ... similar growth rates under low nutrient conditions, while Betula grew faster under high nutrient conditions. The higher growth rate of Betula under high nutrient conditions is apparently a function ... rate was higher for Pin us than for Betula under nutrient poor conditions but there was little ... species when grown under nutrient poor conditions but Betula was more productive per unit N under high ...
Tópico(s): Botany and Plant Ecology Studies
1987 - Wiley | Functional Ecology
Erkki Haukioja, Sinikka Hanhimäki, Gimme H. Walter,
... A. (1982) The occurrence of natural hybrids between Betula pendula Roth and B. pubescens Ehrh. Watsonia 14, ... Scholar Elkington, T. T. (1968) Introgressive hybridization between Betula nana L. and B. pubescens Ehr. in north- ... Variation and polyploidy within lowland populations of the Betula pendula/B. pubescens complex. NewPhytol. 94, 433–51. ... 1985) Rapid wound-induced resistance in white birch (Betula pubescens) foliage the geometrid Epirrita autumnata: A comparison ... 1990) Consequences of herbivory in the mountain birch (Betula pubescens ssp tortuosa): Importance of the functional organization ...
Tópico(s): Ecology and Vegetation Dynamics Studies
1994 - Wiley | Australian Journal of Ecology
Martijn Schenk, Claire‐Noëlle Thienpont, Wim J. M. Koopman, L. J. W. Gilissen, M.J.M. Smulders,
The genus Betula comprises various species in boreal and temperate climate zones of the Northern Hemisphere. The taxonomy of Betula is controversial and complicated by parallel evolution of ... markers (321 variable bands) were produced in 107 Betula accessions from 23 species and 11 hybrids. The ... Four distinct subgenera were identified within the genus Betula. These subgenera were partly in disagreement with the ... The majority of the species fell within subgenus Betula and shared a high degree of similarity with ...
Tópico(s): Botanical Studies and Applications
2008 - Springer Science+Business Media | Tree Genetics & Genomes
... high and low pollen years in the genera Betula, Alnus, Corylus, Salix and Populus and the cumulative ... statistically significant (p<0.05). The comparison between Betula and Alnus is discussed first. Betula pollen was clearly the most abundant airborne pollen ... the number of days per year when the Betula and Alnus pollen counts together exceeded 10 and ... greater than the number of days when the Betula pollen counts alone exceeded 10 and 100 m− ... per 1 000 m−3 of air of Betula and Alnus together compared with the same count ...
Tópico(s): Animal Ecology and Behavior Studies
2007 - Taylor & Francis | Grana
Bharat Babu Shrestha, Balkrishna Ghimire, Hari D Lekhak, Pramod Kumar Jha,
Distribution and community structure of treeline birch (Betula utilis D. Don) forest in a trans-Himalayan dry valley was studied in Manang (central Nepal) with the major focus on regeneration. Along ... an important role in spatial (horizontal) distribution of Betula utilis. Pure Betula forest forming the treeline was mature, with high basal area (2.3%), but mixed Betula forest at lower elevations was young. This might ... of Abies spectabilis. If not severely disturbed, mixed Betula forest may be replaced by Abies spectabilis. In ...
Tópico(s): Forest ecology and management
2007 - International Mountain Society | Mountain Research and Development
David G. Nielsen, Vanessa L. Muilenburg, Daniel A. Herms,
... anxius Gory) is the key pest of birches (Betula spp.) in North America, several of which have ... Ohio, North American birch species, including paper birch (Betula papyrifera Marshall), 'Whitespire' gray birch (Betula populifolia Marshall), and river birch (Betula nigra L.), were much more resistant to bronze ... to Europe and Asia, including European white birch (Betula pendula Roth), downy birch (Betula pubescens Ehrh.), monarch birch (Betula maximowicziana Regel), and ...
Tópico(s): Insect Pest Control Strategies
2011 - Oxford University Press | Environmental Entomology
Jeong‐Eun Huh, Jang-Mu Hong, Yong-Hyeon Baek, Jae-Dong Lee, Do‐Young Choi, Dong‐Suk Park,
Traditional medicine has widely been used Betula platyphylla var. japonica to treat various inflammatory diseases including arthritis. To determine the anti-inflammatory, anti-nociceptive, and anti-arthritic effects of Betula platyphylla in interleukin-1β (IL-1β)-stimulated fibroblast- ... and cyclo-oxygenase 2 (COX-2) activity of Betula platyphylla were tested in IL-1β-stimulated fibroblast- ... was measured 1 h after oral administration of Betula platyphylla. The former was evaluated with a paw ... score, and paw volume in inflammatory arthritis tests. Betula platyphylla significantly inhibited proliferation of IL-1β-induced ...
Tópico(s): Osteoarthritis Treatment and Mechanisms
2011 - Elsevier BV | Journal of Ethnopharmacology
Kari Taulavuori, Erja Taulavuori, O. Skre, Jarle Nilsen, Bernt Igeland, Kari Laine,
... 427-436 Free Access Dehardening of mountain birch (Betula pubescens ssp. czerepanovii) ecotypes at elevated winter temperatures ... temperatures on the dehardening process of mountain birch (Betula pubescens ssp. czerepanovii) ecotypes and to evaluate their ... native species in Scandinavia (Ögren, 2001). Mountain birch (Betula pubescens ssp. czerepanovii) is the most important tree- ... Table 1. Seed origins representing the mountain birch (Betula pubescens ssp. czerepanovii) ecotypes investigated in the experiment ...
Tópico(s): Plant Water Relations and Carbon Dynamics
2004 - Wiley | New Phytologist
Hishila Sujakhu, Kamal Raj Gosai, Siddhi Bir Karmacharya,
Forest structure and regeneration of Betula utilis (D. Don) was studied in birch forestlocated in Samagaun valley (3500 – 4000 m) of Manaslu Conservation Area. Vegetationsampling was done ... curve. Four tree species wererecorded from the forest. Betula utilis was the dominant tree species with the highestImportance Value Index (173.22) in mixed Betula forest and 262.96 in pure Betula forestand Abies spectabilis was the co – dominant species (65.95) in mixed Betula forest whileRhododendron campanulatum was the co-dominant species ( ...
Tópico(s): Tree-ring climate responses
2014 - | Ecoprint An International Journal of Ecology
Subha Rastogi, Madan Mohan Pandey, Ajay Kumar Singh Rawat,
Trees and shrubs of the genus Betula (Betulaceae) inhabit various ecosystems in temperate and boreal climate zones of the northern hemisphere. The healing properties of Betula bark and bark extracts have been known for ... different parts of the world. Several species of Betula have traditionally been used for the treatment of ... uses, phytochemistry and pharmacological and toxicological research of Betula species in order to explore their therapeutic potential ... information on various species belonging to the genus Betula was collected via electronic search (using Pubmed, SciFinder, ...
Tópico(s): Natural Antidiabetic Agents Studies
2014 - Elsevier BV | Journal of Ethnopharmacology
Linda B. Brubaker, Patricia M. Anderson, Feng Sheng Hu,
... gradient from continuous boreal forest (central Alaska) to Betula shrub tundra (Bristol Bay region), pollen records from ... tundra (ca 14–12 ka BP), mixed herb/Betula shrub tundra (ca 12–8 ka BP), and Alnus/Betula shrub tundra (8 ka BP to present). The ... brief period of herb tundra (>12 ka BP), Betula shrub tundra (ca 12–8.5 ka BP), and Picea forest mixed with Alnus/Betula shrub tundra (ca 8 ka BP to present). ... or trees) than have southern areas. During the Betula period (12–8 ka BP), a dense Betula shrubland occupied central Alaska, changing to a mixed ...
Tópico(s): Geological Studies and Exploration
2001 - Elsevier BV | Quaternary Science Reviews
Koichi Takahashi, Kosuke Homma, Valentina P. Vetrova, Sergey Florenzev, Toshihiko Hara,
... A 1‐ha plot was established in a Betula platyphylla‐Picea ajanensis mixed boreal forest in the ... trunk diameter at breast height (DBH). 25% of Betula regenerated by sprouting, and its frequency distribution of ... two species had clumped distributions, especially for saplings. Betula saplings were not distributed in canopy gaps. Small ... 25–400 m 2 ) the spatial distribution of Betula saplings was positively correlated with living Betula canopy trees and negatively with dead Picea canopy trees. This suggests that Betula saplings regenerated under the crowns of Betula canopy ...
Tópico(s): Forest ecology and management
2001 - Wiley | Journal of Vegetation Science
Nian Wang, Hugh A. McAllister, Paul R. Bartlett, Richard J. A. Buggs,
... ecological and economic importance. A new classification of Betula has recently been proposed based on morphological characters. ... of nuclear ribosomal DNA were sequenced for 76 Betula samples verified by taxonomic experts, representing approx. 60 ... of the dwarf section Apterocaryon are unusually scattered. Betula corylifolia (subgenus Nipponobetula) unexpectedly clusters with species of ... and B. grossa. Biogeographical disjunctions were found within Betula between Europe and North America, and also disjunctions ...
Tópico(s): Plant Reproductive Biology
2016 - Oxford University Press | Annals of Botany
Wenliang Geng, Yanyan Li, Dongqi Sun, Bin Li, Pengyan Zhang, Hao Chang, Tianqi Rong, Ying Liu, Jingwen Shao, Zhenyue Liu, Huiru Zhu, Yuanyuan Lou, Qianqian Wang, Jinbing Zhang,
... of resources, as well as ecologically sustainable development. Betula platyphylla Suk. is one of the most widely ... Based on 231 species distribution data points of Betula platyphylla Suk. in China and 37 bioclimatic, soil, ... 0.75), the potential geographical distribution pattern of Betula platyphylla Suk. under Representative Concentration Pathway (RCP) climate ... 1) At present, the main suitable area for Betula platyphylla Suk. extends from northeastern to southwestern China, ... variables that affect the potential geographical distribution of Betula platyphylla Suk. (3) The suitable area for Betula ...
Tópico(s): Genetic diversity and population structure
2022 - Public Library of Science | PLoS ONE
Lilja Karlsdóttir, Margrét Hallsdóttir, Ægir Th. Thórsson, Kesara Anamthawat‐Jónsson,
... insight into the early Holocene vegetation history of Betula in South Iceland and to investigate whether hybridisation between downy tree-birch (Betula pubescens) and dwarf birch (Betula nana) could be discovered in this region, similar ... Iceland. From these Eyvík samples, all morphologically normal Betula pollen grains were size-measured and abnormal pollen ... area became established rather late, statistical analysis of Betula pollen size was only possible in the uppermost ... peat monolith, more than half of the measured Betula pollen grains belonged to B. pubescens. Evidence of ...
Tópico(s): Lichen and fungal ecology
2012 - Elsevier BV | Review of Palaeobotany and Palynology
... approach ‐ due to Usinger ‐ permits reliable separation of Betula species in northwest European pollen diagrams. Techniques for ... distributions are broadly consistent with Usinger's for Betula nana and Betula pubescens. The results show an Allerød‐Younger Dryas fall in the pollen percentage of Betula nana , a Betula pubescens rise at the beginning of the Holocene ( ... long‐distance pollen transport), and a subsequent major Betula nana expansion concurrent with the regional Ericales maximum.
Tópico(s): Soil Geostatistics and Mapping
1981 - Wiley | New Phytologist
Nancy G. Slack, Janice M. Glime,
... wheelbarrow size; canopy of Acer saccharum, Fagus grandifolia, Betula alleghaniensis; understory of Viburnum cassinoides, Acer spicatum. pH ... granite rocks fist to bucket size; canopy of Betula papyrifera; understory of Acer spicatum. pH 6.5. ... boulders cement mixer size; canopy of Abies balsamea, Betula alleghaniensis, Acer spicatum, Sorbus americanus. pH 6.4. ... rocks egg to fist size; sparse canopy of Betula papyrifera, B. alleghaniensis, Tsuga canadensis. pH 6.8. ... of wheelbarrow and cement mixer size; cover of Betula alleghaniensis, Abies balsamea, Picea rubens; understory of Acer ...
Tópico(s): Lichen and fungal ecology
1985 - American Bryological and Lichenological Society | The Bryologist
James N. Smith, Charles J. Krebs, A. R. E. Sinclair, Rudy Boonstra,
... dominated by four species of shrubs and trees. Betula glandulosa, the most preferred species, was common on ... was eaten most often in mid-winter, when Betula was covered by snow. Where Betula was absent, Salix was eaten at or above ... generally not preferred, but was eaten, especially where Betula was absent. Shepherdia canadensis was eaten fourth most ... much of the biomass of small twigs of Betula glandulosa and Salix glauca from three study plots. ... that hares browsed an average of 63% of Betula glandulosa twigs, 26% of Salix glauca twigs, 20% ...
Tópico(s): Wildlife Ecology and Conservation
1988 - Wiley | Journal of Animal Ecology
Carola Röser, Leonardo Montagnani, Ernst‐Detlef Schulze, Danilo Mollicone, Olaf Kolle, Michele Meroni, Dario Papale, Luca Belelli Marchesini, Sandro Federici, Riccardo Valentini,
... in close vicinity were investigated: 50 yr-old Betula pubescens ("Betula stand", an early successional stage after fire), 250 ... old mixed boreal forest, representing the transition from Betula-dominated to Abies-dominated canopies, and 200-yr- ... by Abies sibirica, Picea obovata and few old Betula pubescens and Populus tremula trees.The Abies stand ... number of days with net CO 2 uptake (Betula stand 89 days, mixed boreal forest 109 days, and Abies stand 135 days), maximum measured LAI (Betula 2.6 m 2 m -2 , mixed boreal ...
Tópico(s): Atmospheric and Environmental Gas Dynamics
2002 - Taylor & Francis | Tellus B
Kari Saikkonen, Marjo Helander, Matti Rousi,
... We examined foliar endophyte frequencies in two native ( Betula pendula and Betula pubescens ) and three exotic ( Betula ermanii, Betula platyphylla and Betula resinifera ) birch species and their hybrids in Punkaharju, ...
Tópico(s): Yeasts and Rust Fungi Studies
2003 - Wiley | Forest Pathology
Kahraman Gürcan, Shawn A. Mehlenbacher,
Microsatellite-containing sequences for the Betulaceae ( Betula , Corylus , and Alnus ) were retrieved from GenBank and used to develop twelve new microsatellite marker primer pairs that amplified and were polymorphic ... be useful in genetic studies in Corylus and Betula . To investigate transferability of microsatellite primer pairs in ... SSR) primer pairs (75 from Corylus , 52 from Betula , and two from Alnus ) to amplify DNA of ... accessions representing diverse taxa. Microsatellite primer pairs from Betula amplified 92% of Betula , 51% of Alnus , 41% ...
Tópico(s): Plant and Fungal Interactions Research
2010 - American Society for Horticultural Science | Journal of the American Society for Horticultural Science
Teruyoshi Nagamitsu, T. Kawahara, Ayako Kanazashi,
Abstract Betula apoiensis (Betulaceae), a tetraploid endemic to Mount Apoi in Hokkaido, is endangered in Japan. To reveal the ... sequenced and their haplotypes were determined for 12 Betula species in the Sakhalin, Hokkaido and Honshu Islands. ... and Bp09, B. apoiensis shared identical haplotypes with Betula ermanii and Betula ovalifolia , and had haplotypes that appeared to have ...
Tópico(s): Chromosomal and Genetic Variations
2006 - Wiley | Plant Species Biology
Jianhua Li, Suzanne Shoup, Zhiduan Chen,
Interspecific relationships of Betula remain elusive, making it difficult to examine morphological diversification and historical biogeography of the genus. In this study, sequences ... ribosomal DNA were used to estimate relationships within Betula. Subgenera and sections or subsections, as traditionally circumscribed, ... characters traditionally used to categorize major groupings of Betula may have independently evolved more than once, including the shrubby habit and racemose female catkin arrangement. Betula maximowicziana is not united with other species of ...
Tópico(s): Genetic diversity and population structure
2005 - New England Botanical Club | Rhodora
Olivier Raspé, Catherine Mary Findlay, Anne‐Laure Jacquemart,
... Tree and shrub species also include Acer pseudoplatanus, Betula pubescens, Corylus avellana, Crataegus monogyna and Ulmus glabra. ... Sorbus aucuparia is sometimes frequent in Quercus petraea–Betula pubescens–Dicranum majus woodland (W17), which typically occurs ... understorey component. In some stands of Quercus spp.–Betula spp.–Deschampsia flexuosa woodland (W16) in the north- ... sylvestris–Hylocomium splendens woodland (W18), S. aucuparia and Betula pubescens are occasionally present as scattered trees, forming ...
Tópico(s): Botany and Plant Ecology Studies
2000 - Wiley | Journal of Ecology
Xiyang Zhao, Xiuyan Bian, Zhixin Li, Xiuwei Wang, Chengjun Yang, Guifeng Liu, Jing Jiang, Y. Kentbayev, B. Kentbayeva, Chuanping Yang,
... we introduced 18 families of salt-tolerant birch (Betula pendula Roth., Betula kirghisorum Sav.-Ryczg., and Betula pubescens Ehrh) into five high-salinity locations in ...
Tópico(s): Genetic and phenotypic traits in livestock
2014 - Taylor & Francis | Scandinavian Journal of Forest Research