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145 results for “Aspen”
Single 1,000 sec dark exposure from Andor Aspen CG16M
<p>This is a single uncalibrated dark frame with exposure time of 1000 seconds.</p>
Figure 9 from: Hammond HEJ, García-Tejero S, Pohl GR, Langor DW, Spence JR (2021) Spatial and temporal variation of epigaeic beetle assemblages (Coleoptera, Carabidae, Staphylinidae) in aspen-dominated mixedwood forests across north-central Alberta. In: Spence J, Casale A, Assmann T, Liebherr JК, Penev L (Eds) Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020). ZooKeys 1044: 951-991. https://doi.org/10.3897/zookeys.1044.65776
Figure 9 Boxplots of beta-diversity of epigaeic beetle assemblages in aspen-dominated mixedwood forests at the Lac la Biche location, 1992–93 ACarabidae and BStaphylinidae. Beta diversity was calculated within locations, within stands, and within lines for mature and old stands. Significant differences between stand age classes are indicated by asterisks above the boxplots (* p < 0.05, ** p < 0.01, *** p < 0.001)
Figure 8 from: Hammond HEJ, García-Tejero S, Pohl GR, Langor DW, Spence JR (2021) Spatial and temporal variation of epigaeic beetle assemblages (Coleoptera, Carabidae, Staphylinidae) in aspen-dominated mixedwood forests across north-central Alberta. In: Spence J, Casale A, Assmann T, Liebherr JК, Penev L (Eds) Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020). ZooKeys 1044: 951-991. https://doi.org/10.3897/zookeys.1044.65776
Figure 8 Redundancy analysis (RDA) of epigaeic beetle assemblages in aspen-dominated mixedwood forests at the Lac la Biche location, 1992–93 ACarabidaeBStaphylinidae. Each symbol represents the catch from a single pitfall trap pooled over two years.
Figure 7 from: Hammond HEJ, García-Tejero S, Pohl GR, Langor DW, Spence JR (2021) Spatial and temporal variation of epigaeic beetle assemblages (Coleoptera, Carabidae, Staphylinidae) in aspen-dominated mixedwood forests across north-central Alberta. In: Spence J, Casale A, Assmann T, Liebherr JК, Penev L (Eds) Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020). ZooKeys 1044: 951-991. https://doi.org/10.3897/zookeys.1044.65776
Figure 7 Adjusted percentage of variance of assemblage composition in the regional dataset explained at each spatial scale – between locations, between lines in the same location and between traps in the same line ACarabidaeBStaphylinidae.
Figure 6 from: Hammond HEJ, García-Tejero S, Pohl GR, Langor DW, Spence JR (2021) Spatial and temporal variation of epigaeic beetle assemblages (Coleoptera, Carabidae, Staphylinidae) in aspen-dominated mixedwood forests across north-central Alberta. In: Spence J, Casale A, Assmann T, Liebherr JК, Penev L (Eds) Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020). ZooKeys 1044: 951-991. https://doi.org/10.3897/zookeys.1044.65776
Figure 6 Boxplots of epigaeic beetle assemblage beta-diversity within regions, within locations and within lines for Boreal Forest (BF) and Foothills (FH) Natural Regions ACarabidaeBStaphylinidae. Significant differences between Natural Regions are indicated by asterisks above the boxplots (** p < 0.01, *** p < 0.001).
Figure 4 from: Hammond HEJ, García-Tejero S, Pohl GR, Langor DW, Spence JR (2021) Spatial and temporal variation of epigaeic beetle assemblages (Coleoptera, Carabidae, Staphylinidae) in aspen-dominated mixedwood forests across north-central Alberta. In: Spence J, Casale A, Assmann T, Liebherr JК, Penev L (Eds) Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020). ZooKeys 1044: 951-991. https://doi.org/10.3897/zookeys.1044.65776
Figure 4 Principal components analysis of epigaeic beetle assemblages in aspen-dominated mixedwood forests in north-central Alberta, 1992–93 ACarabidaeBStaphylinidae. Each symbol represents the catch from a single pitfall trap averaged over two years. Black symbols represent the Lower Foothills Natural Region; open symbols represent the Central Mixedwood Subregion, light grey symbols represent the Dry Mixedwood Subregion and the dark grey symbols represent the Lower Boreal Highlands Subregion of the Boreal Forest Natural Region. Ellipses represent the standard deviation around the centroid of points in each group and dashed polygons represent the final nodes of the multivariate regression tree (MRT) model. The inset shows the major MRT nodes grouping lines based on assemblage structure.
Figure 5 from: Hammond HEJ, García-Tejero S, Pohl GR, Langor DW, Spence JR (2021) Spatial and temporal variation of epigaeic beetle assemblages (Coleoptera, Carabidae, Staphylinidae) in aspen-dominated mixedwood forests across north-central Alberta. In: Spence J, Casale A, Assmann T, Liebherr JК, Penev L (Eds) Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020). ZooKeys 1044: 951-991. https://doi.org/10.3897/zookeys.1044.65776
Figure 5 Redundancy analysis of epigaeic beetle assemblages in aspen-dominated mixedwood forests in Alberta, 1992–93 ACarabidaeBStaphylinidae. Each symbol represents the catch from a single pitfall trap averaged over two years. Open symbols represent the Foothills Natural Region; the black symbols represent the Central Mixedwood Subregion, grey squares represent the Dry Mixedwood Subregion and the grey diamonds represent the Lower Boreal Highlands Subregion of the Boreal Forest Natural Region. Ellipses represent the standard deviation around the centroid of points in each group.
Supplementary material 1 from: Hammond HEJ, García-Tejero S, Pohl GR, Langor DW, Spence JR (2021) Spatial and temporal variation of epigaeic beetle assemblages (Coleoptera, Carabidae, Staphylinidae) in aspen-dominated mixedwood forests across north-central Alberta. In: Spence J, Casale A, Assmann T, Liebherr JК, Penev L (Eds) Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020). ZooKeys 1044: 951-991. https://doi.org/10.3897/zookeys.1044.65776
Supplementary tables
Figure 3 from: Hammond HEJ, García-Tejero S, Pohl GR, Langor DW, Spence JR (2021) Spatial and temporal variation of epigaeic beetle assemblages (Coleoptera, Carabidae, Staphylinidae) in aspen-dominated mixedwood forests across north-central Alberta. In: Spence J, Casale A, Assmann T, Liebherr JК, Penev L (Eds) Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020). ZooKeys 1044: 951-991. https://doi.org/10.3897/zookeys.1044.65776
Figure 3 Coverage based rarefaction estimates of species richness and diversity of epigaeic beetles at each location in aspen-dominated mixedwood forests of north-central Alberta, 1992–93. Locations are distributed across four Natural Subregions (SR) and two Natural Regions (NR) ACarabidae (97.2% coverage) BStaphylinidae (97.6% coverage). Bars represent species richness (± 95% CI) and points represent the exponential of the Shannon diversity index (± 95% CI). For locations where there was significant interannual variation, the results for species richness are placed at the bottom of each bar, and results for diversity are placed in square brackets [] and are indicated above the point for that location.
Figure 2 from: Hammond HEJ, García-Tejero S, Pohl GR, Langor DW, Spence JR (2021) Spatial and temporal variation of epigaeic beetle assemblages (Coleoptera, Carabidae, Staphylinidae) in aspen-dominated mixedwood forests across north-central Alberta. In: Spence J, Casale A, Assmann T, Liebherr JК, Penev L (Eds) Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020). ZooKeys 1044: 951-991. https://doi.org/10.3897/zookeys.1044.65776
Figure 2 Boxplot of the standardized catch of epigaeic beetles at seven locations in aspen-dominated mixedwood forests in north-central Alberta, 1992–93. Locations are distributed across four Natural Subregions (SR) and two Natural Regions (NR) ACarabidaeBStaphylinidae. Locations with the same letter situated above the bar are not significantly different at α = 0.05 (post hoc Tukey's tests). For locations where there was significant interannual variation, the results are indicated above the bar for that location.
Figure 11 from: Hammond HEJ, García-Tejero S, Pohl GR, Langor DW, Spence JR (2021) Spatial and temporal variation of epigaeic beetle assemblages (Coleoptera, Carabidae, Staphylinidae) in aspen-dominated mixedwood forests across north-central Alberta. In: Spence J, Casale A, Assmann T, Liebherr JК, Penev L (Eds) Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020). ZooKeys 1044: 951-991. https://doi.org/10.3897/zookeys.1044.65776
Figure 11 Principal components analysis of epigaeic beetle assemblages in aspen-dominated mixedwood forests in north-central Alberta, 1992–93 ACarabidae, 1992 BCarabidae, 1993 CStaphylinidae, 1992 DStaphylinidae, 1993. Each point represents the catch from a single pitfall trap. Ellipses represent the standard deviation around the centroid of points in each group.
Figure 10 from: Hammond HEJ, García-Tejero S, Pohl GR, Langor DW, Spence JR (2021) Spatial and temporal variation of epigaeic beetle assemblages (Coleoptera, Carabidae, Staphylinidae) in aspen-dominated mixedwood forests across north-central Alberta. In: Spence J, Casale A, Assmann T, Liebherr JК, Penev L (Eds) Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020). ZooKeys 1044: 951-991. https://doi.org/10.3897/zookeys.1044.65776
Figure 10 Adjusted percentage of variance of species composition in the Lac la Biche dataset explained at each spatial scale – between locations, between lines in the same location and between traps in the same line ACarabidaeBStaphylinidae.
Figure 1 from: Hammond HEJ, García-Tejero S, Pohl GR, Langor DW, Spence JR (2021) Spatial and temporal variation of epigaeic beetle assemblages (Coleoptera, Carabidae, Staphylinidae) in aspen-dominated mixedwood forests across north-central Alberta. In: Spence J, Casale A, Assmann T, Liebherr JК, Penev L (Eds) Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020). ZooKeys 1044: 951-991. https://doi.org/10.3897/zookeys.1044.65776
Figure 1 Location of aspen-dominated mixedwood study sites sampled in north-central Alberta, 1992 and 1993. INSET: location of individual pitfall trap lines at Lac la Biche, with lines used in the regional dataset surrounded with box.
Flying over phylogeographic breaks by wind: Quaternary evolutionary history of a mountain aspen in southwestern China
<p>The role of phylogeographic break and wind direction in the formation of plant genetic pattern has aroused increasing interest. Two phylogeographic breaks, MSD and TKL, existed in the Sino-Japanese floristic region have affected many plants, but there was no landscape genetic research across these two phylogeographic breaks. Here, we tested the internal and external factors that influence the phylogeographic pattern of <i>Populus</i> <i>rotundifolia</i>. Genetic variation was surveyed across 49 populations (567 individuals) covering the Chinese range of <i>P.</i> <i>rotundifolia</i>, using 14 nSSRs and 4 cpDNA markers. Demographic and migration hypotheses were tested using coalescent-based approaches, and the current and past potential distributions were predicted using ecological niche modelling. The range and habitat of the western and eastern lineages barely overlap at present, and demographic inferences suggest a population expansion event of <i>P. rotundifolia</i> in 600 Ka. Based on two biogeographic barriers (MSD and TKL) and genetic variation pattern, <i>P. rotundifolia </i>was divided into three groups. The historical gene flow was detected in the central group with western and eastern respectively, indicating an obvious lineages admixture in the central. Moreover, the central part is also the intersection of East Asian monsoon and South Asian monsoon, and has the highest genetic diversity. The existing genetic distribution pattern of <i>P</i><i>.</i> <i>rotundifolia</i> reflects the combined impacts of biogeographic history and biological traits.</p>
Aortic Stenosis and PhosphodiEsterase iNhibition With Aortic Valve Replacement (ASPEN-AVR): A Pilot Study
ClinicalTrials.gov study NCT01272388. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Aortic Stenosis and PhosphodiEsterase Type 5 iNhibition (ASPEN): A Pilot Study
ClinicalTrials.gov study NCT01275339. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Data from: Geographic structure and adaptive population differentiation in herbivore defense genes in European aspen (Populus tremula L., Salicaceae)
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Flying over phylogeographic breaks by wind: Quaternary evolutionary history of a mountain aspen in southwestern China
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Data from: Fine-scale assessment of genetic diversity of trembling aspen in northwestern North America
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Data from: Phytochemical traits underlie genotypic variation in susceptibility of quaking aspen (Populus tremuloides) to browsing by a keystone forest ungulate
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International Brain Laboratory public data
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OpenNeuro
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