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1,270 results for “Acer”
Whole-tree weight and mensurational data for 13 Quercus montana, 12 Quercus rubra, 12 Acer saccharum, and 21 Betula lenta trees harvested between 2000 and 2022 from Black Rock Forest, Cornwall, NY.
Fifty-eight trees ranging from 1.5 to 54.2 centimeters diameter at breast height from four dominant forest tree species in Black Rock Forest were felled, sectioned, and weighed immediately. Subsections were then dried to determine a dry-to-wet-weight ratio for each tree, which was used to determine total dried aboveground biomass for each tree. Stumps and leaves were included. These data enabled construction of species-specific formulae for each species to predict total tree aboveground dry biomass from dbh measurements of live trees for these four species from around the Black Rock Forest region.
Dataset for the project "Evaluation of the effects of trace elements from street dust under urban – industrial conditions on the ecophysiology of Acer platanoides L. and Tilia cordata Mill.
<p>Description of the project: The rapid growth of cities, industry and transport has significantly deteriorated environmental quality, especially in areas with the highest population densities. It applies to water, soil, and air, especially in urban areas. Air pollutants include particulate matter (PM), which harms human health. According to WHO reports (2021), PM pollution is the cause of cardiovascular and respiratory diseases, leading to 4.2 million premature deaths worldwide in 2016. Although improving every year, the situation in Poland is still worse than in many European countries. The particulate matter also includes heavy metals, which have a toxic effect on plants. Plants in urban areas are particularly vulnerable, especially trees, which perform several vital functions, including mitigating climate change, filtering pollutants, and improving air quality. The aim of the project was to determine and compare the morphological and physiological responses of selected tree species to particulate pollution stress under urban conditions. Tree leaves are an essential barrier to atmospheric dust by trapping it on their surface. However, this may come at the cost of reduced light absorption, increased leaf temperature, damage to leaf blades and consequently impaired photosynthesis and plant productivity. However, the ability to absorb dust varies between tree species. It depends on the leaf surface structure, and the response may be due to the species' sensitivity to pollutants. Investigations were conducted in the Upper Silesian Industrial Area around various emission sources, such as heavy metal smelters, combined heat and power plants, and busy streets. The research focused on two tree species common in urban areas, the Norway maple (<i>Acer platanoides</i>) and the small-leaved lime (<i>Tilia cordata</i>). It included measurement of heavy metal concentrations in leaf blades and dust collected on their surface, analysis of concentrations of selected pigments and ascorbic acid as markers of environmental stress. The study provided a preliminary assessment of the impact of particulate pollution on tree function under harsh urban conditions and determined the potential of the studied species to reduce atmospheric dust.</p>
Acer pseudoplatanus pot experiment measuring data of single leaves in LandKlif project
<p><span>We cultivated 168 saplings of Acer pseudoplatanus of four Bavarian provenances under varying shading (two treatments: sun-exposed and shaded) and watering (three treatments: regular watering / drought period in summer / drought periods in spring and summer). The experiment took place in a half-open greenhouse between March and August 2021. For each sapling, we measured the increase in height and stem diameter, as well as specific leaf area (SLA) and leaf dry matter content (LDMC) of three leaves. This dataset contains measuring data of fresh/dry weight and area of each single leaf.</span></p> <p><span>LandKlif is funded by the Bavarian State Ministry of Science and the Arts within the Bavarian Climate Research Network (bayklif). Within the five year funding period of bayklif, five interdisciplinary senior research associations and five junior research groups are be financed with a total sum of 18 million Euro. LandKliF, as one of the five interdisciplinary senior research associations, addresses the effects of climate change on biodiversity and ecosystem services in semi-natural, agricultural and urban landscapes.</span></p>
Acer pseudoplatanus pot experiment measuring data of saplings in LandKlif project
<p><span>In LandKlif project we cultivated 168 saplings of Acer pseudoplatanus of four Bavarian provenances under varying shading (two treatments: sun-exposed and shaded) and watering (three treatments: regular watering / drought period in summer / drought periods in spring and summer). The experiment took place in a half-open greenhouse between March and August 2021. For each sapling, we measured the increase in height and stem diameter, as well as specific leaf area (SLA) and leaf dry matter content (LDMC) of three leaves.</span></p> <p><span>LandKlif is funded by the Bavarian State Ministry of Science and the Arts within the Bavarian Climate Research Network (bayklif). Within the five year funding period of bayklif, five interdisciplinary senior research associations and five junior research groups are be financed with a total sum of 18 million Euro. LandKliF, as one of the five interdisciplinary senior research associations, addresses the effects of climate change on biodiversity and ecosystem services in semi-natural, agricultural and urban landscapes.</span></p>
Herbarium specimen image of Acer davidii subsp. grosseri (Pax) P.C.de Jong, part of the collection of Royal Botanic Garden Edinburgh
Part of a training dataset of scanned herbarium specimens. The data paper and a summary landing page will be published on Zenodo as it gets published.<br><br>Content of this deposition:<br><br>- A JSON-LD datafile listing the label data associated with this herbarium specimen. The Darwin and Dublin Core data standards are used for most values.<br>- A JPEG image file of the scanned herbarium sheet.<br>- A lossless TIFF image from which the JPEG image has been derived.<br>- Two PNG files containing segmented image overlays of the scanned herbarium sheet. The _all extension indicates that all labels, color charts and pieces of text have received a different color against a black background color. The _sel extension indicates that these elements are white if they're barcode labels, yellow if they're color charts and red if they're anything else.
Herbarium specimen image of Acer pseudoplatanus L., part of the collection of Meise Botanic Garden
Part of a training dataset of scanned herbarium specimens. The data paper and a summary landing page will be published on Zenodo as it gets published.<br><br>Content of this deposition:<br><br>- A JSON-LD datafile listing the label data associated with this herbarium specimen. The Darwin and Dublin Core data standards are used for most values.<br>- A JPEG image file of the scanned herbarium sheet.<br>- A lossless TIFF image from which the JPEG image has been derived.
Herbarium specimen image of Acer buergerianum Miq., part of the collection of Naturalis Biodiversity Center
Part of a training dataset of scanned herbarium specimens. The data paper and a summary landing page will be published on Zenodo as it gets published.<br><br>Content of this deposition:<br><br>- A JSON-LD datafile listing the label data associated with this herbarium specimen. The Darwin and Dublin Core data standards are used for most values.<br>- A JPEG image file of the scanned herbarium sheet.
Macroscale Variation in Red Maple (Acer rubrum) Foliar Carbon, Nitrogen, and Nitrogen Resorption
Project Description The primary goal of this project was to investigate intraspecific variation of foliar nitrogen resorption for Acer rubrum (red maple). In particular, we are interested in examining whether foliar nutrient resorption is related to climatic factors such as mean annual temperature and/or precipitation. The approach used to collect green and fallen leaf samples was through a community science project where participants sent leaves to our lab at Boston University for analysis. In the spring/summer of 2019 plant and naturalist organizations throughout the range of red maple in the United States were contacted to request information about this project be sent to their members regarding the collection of red maple leaves for the study. Interested parties were prompted to complete a google form that included basic contact information. Each participant was then sent a sampling kit which included gloves, sampling protocols, and data sheets. For each set of leaves collected from a single tree they were assigned the following identification “tasper-###” where the numbers were uniquely assigned. Green and fallen leaves were assigned different “tasper-###” numbers. Within a single identification (e.g., tasper-120) each leaf was individually assigned a letter a-n, where n corresponds to the letter of how many leaves were sent from that tree. For most samples a-j was obtained because we asked participants to collect 10 leaves. Individual leaves were scanned for area analysis using a flatbed scanner at 300 dpi and weighed. For C&N analysis each leaf blade from a set of green or fallen leaves from a single tree was hole-punched and the samples were combined yielding one C and N concentration per tree for both each green and fallen leaves. Punches were ground and homogenized to a powder using a mortar and pestle. Approximately 3 mg of dried sample was analyzed for C and N concentration using a NC2500 elemental analyzer (CE Elantech, Lakewood, NJ, USA). NIST Apple Le
Text-fig. 7. Sapindaceae, Polygalaceae, Malvaceae. a: cf. Dipteronia or Koelreuteria pinnately compound leaf with serrate leaflets, UAPC-ALTA S 59500. b, c: Dipteronia brownii, UAPC-ALTA S 59494AB, UAPC-ALTA S 59488. d: Koelreuteria dilcheri fruit valve, BBM-PAL-P000011. e: Acer, BBM-PAL-P000012. f: Detail of Deviacer fruit body from (h). g: Florissantia quilchenensis calyx, UAPC-ALTA S 26364. h: Deviacer wolfei. UAPC-ALTA S 67690. i, j: Florissantia quilchenensis calyces. i: BBM-PAL-P000013. j: BBM-PAL-P000014. Scale bars: a–e, g–j = 1 cm; f = 5 mm. in The Early Eocene Flora Of Horsefly, British Columbia, Canada And Its Phytogeographic Significance
Text-fig. 7. Sapindaceae, Polygalaceae, Malvaceae. a: cf. Dipteronia or Koelreuteria pinnately compound leaf with serrate leaflets, UAPC-ALTA S 59500. b, c: Dipteronia brownii, UAPC-ALTA S 59494AB, UAPC-ALTA S 59488. d: Koelreuteria dilcheri fruit valve, BBM-PAL-P000011. e: Acer, BBM-PAL-P000012. f: Detail of Deviacer fruit body from (h). g: Florissantia quilchenensis calyx, UAPC-ALTA S 26364. h: Deviacer wolfei. UAPC-ALTA S 67690. i, j: Florissantia quilchenensis calyces. i: BBM-PAL-P000013. j: BBM-PAL-P000014. Scale bars: a–e, g–j = 1 cm; f = 5 mm.
Figure 34–37 in Two new species of Eurytoma (Hymenoptera: Eurytomidae), parasitoids of Bradybatus sp. (Coleoptera: Curculionidae) damaging seeds of Acer truncatum in China
Figure 34–37. Eurytoma acutibialis Yang, Liu & Cao, sp. nov., male. 34. Head, mesosoma and petiole in dorsal view. 35. Fore and hind wings. 36. Metasoma with hind legs in lateral view. 37. Propodeum (part) and metasoma in dorsal view.
Figure 29–33 in Two new species of Eurytoma (Hymenoptera: Eurytomidae), parasitoids of Bradybatus sp. (Coleoptera: Curculionidae) damaging seeds of Acer truncatum in China
Figure 29–33. Eurytoma acutibialis Yang, Liu & Cao, sp. nov., male. 29. Whole body in dorsal view. 30. Whole body in lateral view. 31. Head in front view. 32. Antenna. 33. Head and mesosoma in lateral view (the red arrows pointing the smooth area before and behind malar sulcus).
Figure 20–24 in Two new species of Eurytoma (Hymenoptera: Eurytomidae), parasitoids of Bradybatus sp. (Coleoptera: Curculionidae) damaging seeds of Acer truncatum in China
Figure 20–24. Eurytoma acutibialis Yang, Liu & Cao, sp. nov., female. 20. Body in dorsal view. 21. Body in lateral view. 22. Head and mesosoma in dorsal view. 23. Head in front view. 24. Hind tibia (red arrows pointing the six stout bristles on dorsal edge).
Figure 25–28 in Two new species of Eurytoma (Hymenoptera: Eurytomidae), parasitoids of Bradybatus sp. (Coleoptera: Curculionidae) damaging seeds of Acer truncatum in China
Figure 25–28. Eurytoma acutibialis Yang, Liu & Cao, sp. nov., female. 25. Fore and hind wings. 26. Mesosoma and metasoma in lateral view. 27. Propodeum and metasoma in dorsal view. 28. Antenna, head and pronotum in lateral view (the red arrows pointing the smooth area before and behind malar sulcus).
Figure 15–19 in Two new species of Eurytoma (Hymenoptera: Eurytomidae), parasitoids of Bradybatus sp. (Coleoptera: Curculionidae) damaging seeds of Acer truncatum in China
Figure 15–19. Eurytoma truncatumi Yang, Liu & Cao, sp. nov., male. 15. Metasoma and hind leg in lateral view. 16. Fore and hind wings. 17. Metasoma with parts of legs in dorsal view. 18–19. Larvae parasitizing on weevil host in seed of Acer truncatum. 18. The parasitoid larva parasitizing on host Bradybatus sp. larva (a. E. truncatumi Yang, Liu & Cao, sp. nov.; b. Bradybatus sp.). 19. The parasitoid larva parasitizing on host Bradybatus sp. pupa (c. E. truncatumi Yang, Liu & Cao, sp. nov., larva; d. Bradybatus sp. pupa).
Figure 11–14 in Two new species of Eurytoma (Hymenoptera: Eurytomidae), parasitoids of Bradybatus sp. (Coleoptera: Curculionidae) damaging seeds of Acer truncatum in China
Figure 11–14. Eurytoma truncatumi Yang, Liu & Cao, sp. nov., male. 11. Antenna. 12. Head and mesosoma in dorsal view. 13. Head in front view. 14. Mesosoma in lateral view.
Figure 6–10 in Two new species of Eurytoma (Hymenoptera: Eurytomidae), parasitoids of Bradybatus sp. (Coleoptera: Curculionidae) damaging seeds of Acer truncatum in China
Figure 6–10. Eurytoma truncatumi Yang, Liu & Cao, sp. nov. 6–8. Female. 6. Head and mesosoma in lateral view; 7. Fore and hind wings; 8. Hind femur and tibia (red arrows pointing the five stout long bristles on dorsal edge). 9–10. Male. 9. Whole body in dorsal view; 10. Whole body in lateral view.
Figure 1–5 in Two new species of Eurytoma (Hymenoptera: Eurytomidae), parasitoids of Bradybatus sp. (Coleoptera: Curculionidae) damaging seeds of Acer truncatum in China
Figure 1–5. Eurytoma truncatumi Yang, Liu & Cao, sp. nov., female. 1. Body in dorsal view. 2. Head in lateral view (the red arrows pointing the curved malar sulcus). 3. Head and mesosoma in dorsal view. 4. Head in front view. 5. Antenna.
Acer negundo (Aceraceae) - woody angiosperms - leaf
Image of Acer negundo (Aceraceae) - woody angiosperms - leaf
Acer negundo (Aceraceae) - woody angiosperms - leaf - showing orientation on twig
Image of Acer negundo (Aceraceae) - woody angiosperms - leaf - showing orientation on twig
Acer negundo (Aceraceae) - woody angiosperms - bark - of a large tree
Image of Acer negundo (Aceraceae) - woody angiosperms - bark - of a large tree
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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OpenNeuro
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