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Showing 1 to 20 of 58 for “"Juniperus"”.
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Improving the Phylogenetic Understanding of the Genus Juniperus
<em>Juniperus</em> is a species-rich and geographically widespread genus of coniferous trees and shrubs. The genus is relatively recently diverged, and has experienced periods of rapid diversification. Recent phylogenetic investigations by others have compared DNA from selected regions of the …
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Autoecología paramétrica de Juniperus thurifera L. en Castilla y León
El enebro o sabina albar, Juniperus thurifera L., se extiende por más de 200.000 ha del territorio castellano-leonés, algo más de la mitad de las cuales son masas puras o con el enebro como especie arbórea dominante. La importancia de la especie en dicha comunidad autónoma, donde su expansión en …
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Biology and conservation status of Juniperus macrocarpa Sm. in Sardinia
… aimed to provide a better understanding of Juniperus macrocarpa and the habitat that it characterizes (Juniperus spp. habitat; European priority habitat) in Sardinian coastal dunes, as well as to achieve results useful to support in situ and ex situ conservation actions. In particular, the …
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Analysis of polymeric extractives of Western Juniper (Juniperus occidentalis) heartwood
Extractives of Western Juniper (Juniperus occidentalis) have been isolated and separated by chromatographic means. Since this species is durable, bioactivity of several fractions has been determined. The bioactivity has been determined by the brine shrimp lethal bioassay. Less polar compounds with …
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Modelling the impact of Phytophthora austrocedri on UK populations of native juniper (Juniperus communis s. l.)
… pathogen, Phytophthora austrocedri, on juniper (Juniperus communis). I first surveyed potential abiotic and biotic drivers of disease severity across three, geographically separate juniper populations with different infection histories. In all populations, disease severity increased with …
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Phytochemical and cytotoxicity studies on Arbutus pavarii, Asphodelus aestivus, Juniperus phoenicea and Ruta chalepensis growing in Libya
… medicinal uses and the literature survey, Juniperus phoenicea L. (Fam: Cupressaceae), Asphodelus aestivus Brot. (Fam: Asphodelaceae), Ruta chalepensis. L (Fam: Rutaceae) and Arbutus pavarii Pampan. (Fam: Ericaceae) have been selected for investigation in the current endeavour. The four …
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Climatic and edaphic influences on the radial growth of eastern redcedar (Juniperus virginiana), Smoke Hole Canyon, West Virginia
… affecting radial growth of eastern redcedar (Juniperus virginiana) from Smoke Hole Canyon, West Virginia. The three study sites (BBS, EAR, and TNC) are well within the distribution of J. virginiana, but are typically drier and rockier than other locations in close proximity. Tree-ring series …
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A Multi-Millennial Drought Reconstruction for West-Central New Mexico Using Rocky Mountain Juniper (<i>Juniperus scopulorum</i>, Sarg.)
… living and remnant Rocky Mountain juniper (<em>Juniperus scopulorum</em>, Sarg.) wood from Candelaria in west-central New Mexico is used to determine the temporal and spatial variability of scPDSI over the past two millennia (B.C. 492 to A.D. 2014). Our record indicates extreme drought events …
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A gradient analysis of Coleogyne communities in Southern Nevada
… broad upper and lower ecotones with Pinus-Juniperus and Larrea-Ambrosia vegetation, respectively. Lower Coleogyne ecotones generally had the highest species richness, and Pinus-Juniperus woodlands had the lowest species richness; Detrended correspondence analysis (DECORANA) suggested that …
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An environmental history : William Cameron Park, Waco, Texas.
… regeneration of forest cover, first in Juniperus species and then with deciduous species. This release event took place eighty to ninety years ago, coinciding almost exactly with the dedication of Cameron Park in May 1910. Additionally, regeneration of deciduous species was concentrated …
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"Digitaria Sanguinalis (l.) Scop., Echinochloa Crus-galli (l.) Beauv. And Setaria Faberi (herrm.) Interference And Subsequent Control In Container Grown Cornus X Baileyi, Juniperus Chinensis ""san Jose' And Potentilla Fruticosa ""gold Drop'"
… as 21 days with Cornus x baileyi, 63 days with Juniperus chinensis 'San Jose' and 42 days with Potentilla fruticosa 'Gold Drop'. By the termination of the interference studies, C. x baileyi shoot dry weight was decreased as much as 72%; J. chinensis shoot dry weight was reduced as much as 38% …
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Understanding the pattern, shifts and environmental impacts of dynamic plant communities in the Himalayan alpine zone (>4100 m.a.s.l.) under climate change
… dominant plant species (Rhododendron spp. and Juniperus spp.). Large-scale cloud-based analysis of Landsat series data were then used to identify and track over time the changing upper limits of vegetation across 6 regions (organised longitudinally according to a major climatic gradient from …
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Density and Age Distributions of Trees in Upland and Lowland Oldfields 60 Years After Abandonment: The Role of Dispersal
… of which are dispersed by three different modes: Juniperus virginiana, a predominantly bird-dispersed species; Acer rubrum, a predominantly winddispersed species; and Fagus grandifolia, a predominantly mammal-dispersed species. The establishment patterns observed by others in recently abandoned …
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Food Habits of Deer In The Southern Black Hills As Determined By The Point Technique
… to 13.7; ponderosa pine, 12.3 to 13.9; juniper (Juniperus spp.), 9.6 to 12.8; grasses, 9.4 to 10.3; kinnikinnick, 7.4 to 9.6; snowberry (Symphoricarpos spp.), 5.2 to 7.3; rose, 5.1 to 5.7; Oregon grape (Mahonia repens), 3.9 to 5.5; bedstraw (Calium sp.), 2.5 to 4.7; and old-man’s bead (Usnea …
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Seed dispersal of western and Utah junipers: the role of scatter-hoarding rodents.
The dispersal of Juniperus seeds is generally attributed to frugivores, both avian and mammalian. Junipers produce female cones with a husk enclosing the seeds that closely resemble fruit, thus they are often referred to as berries. These cones differ among juniper species with some species …
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Geochemical Investigations of Mineral Weathering: Quantifying Weathering Intensity, Silicate versus Carbonate Contributions, and Soil-Plant Interactions
… of four conifers (Pinus ponderosa, Pinus edulis, Juniperus monosperma, Juniperus scopulorum), a deciduous tree (Populus tremuloides), three shrubs (Chrysothamus nauseosus, Fallugia paradoxa, Rhus trilobata), and an annual grass (Bouteloua gracilis) and a lichen (Xanthoparmelia lineola). We found …
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Microhabitat Temperature Variations and the Post-Burn Response of Vegetation in the Edwards Plateau of Texas
… season, whereas the undesirable woody species Juniperus Ashei was effectively controlled.
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The Vascular Flora of Bona Glade Natural Area, Dade County, Missouri
… and compared to the annual ring increments of Juniperus to reveal a biennial pulse related to a 2-year cycle in weather conditions.
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