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11 results for “Leaf emergence”
Leaf reflectance and traits of floating and emergent macrophytes
<p>This dataset includes leaf samples from six floating and emergent macrophyte species common in temperate areas, covering different phenological stages, seasons, and environmental conditions, and measured leaf reflectance (400-2500 nm) and leaf traits (dealing with photophysiology, pigments, and structure). Data were collected along three years (2016-2018) from three temperate shallow lakes surrounded by wetlands and hosting abundant macrophyte communities, located in central and southern Europe: Lake Hídvégi or Kis-Balaton (Hungary), Mantua lakes system (Italy), and Lake Varese (Italy).</p> <p>Leaf photophysiological parameters derived from chlorophyll fluorescence measured with a PAM-2500 chlorophyll fluorometer (Heinz Walz GmbH, Germany).</p> <p>Leaf pigments were derived from spectrophotometric readings of absorbance of leaf extracts in acetone 80%.</p> <p> </p>
Ground observations of spring leaf emergence phenology at eight sites in and near the Coweeta basin (2011-2012).
This study was conducted to evaluate the utility of satellite data from the MODIS sensor to predict the timing of spring leaf emergence in the Southern Appalachians. Eight ground sampling sites were established on square plots (231 x 231 meters) that corresponded to the dimensions of MODIS satellite pixels. Each site was visited approximately every other day and observations on the status of leaf emergence in the canopy and understory were collected at 30 subsampling points within each site. Observations consisted of visual estimates of leaf emergence status on marked trees and shrubs, as well as digital photographs of the canopy and understory taken from consistent locations at each subsampling point.
Data from: Early spring warming may hasten leaf emergence in Erythronium americanum
Premise of the study: Climate change is making spring arrive earlier than in the past, causing some species to alter the timing of their spring activities. This study addressed whether Erythronium americanum Ker Gawl. (trout lily), a common spring ephemeral, can hasten its spring emergence if exposed to early spring warming. Methods: I collected corms of E. americanum in the fall, overwintered them in soil, and exposed them to warming in either mid (early treatment) or late (late treatment) February. The timing of leaf emergence was monitored and compared between treatments. Key results: Leaves exposed to early warming emerged earlier than those in the late treatment. Bud break happened closer to date of exposure to warming in the late treatment than in the early treatment. Conclusions: Spring ephemerals may be able to produce leaves early in response to early spring warming induced by climate change. Risk of late frost and eventual shading by the canopy may limit the duration of a potentially extended growing season. Please be aware that if you ask to have your user record removed, we will retain your name in the records concerning manuscripts for which you were an author, reviewer, or editor. In compliance with data protection regulations, you may request that we remove your personal registration details at any time. (Use the following URL: https://www.editorialmanager.com/ajb/login.asp?a=r). Please contact the publication office if you have any questions.
Videos:B. tabaci adult whiteflies emerging from pupae on a ToLCNDV-infected zucchini and tomato leaf,
<p>Video S1: <em>B. tabaci</em> adult whitefly emerging from pupae on a ToLCNDV-infected zucchini leaf, Video S2: <em>B. tabaci</em> adult whitefly emerging from pupae on a ToLCNDV-infected tomato leaf.</p>
Data from: Early spring warming may hasten leaf emergence in Erythronium americanum
Open the record for dataset details and reuse information.
FIGURE. Drosera communis (a–d): a, habit with emerging inflorescence (Parque Nacional das Sempre-Vivas, MG); b, habit with emerging inflorescence; c, variation in flower color within a population (Parque Nacional da Chapada dos Veadeiros, GO); d, habit (Paranapiacaba, SP). Drosera esmeraldae (e, f): e, habit (Puerto Inirida, Guainía, Colombia); f, flower (Gran Sabana, Bolívar, Venezuela). Drosera graminifolia (g–i): g, habit; h, detail of the leaf bases and stipules; i, flower (Serra do Caraça, MG). Photo credits: a–d, g–i by PMG; e by FR; f by AF. in A synopsis of the genus Drosera (Droseraceae) in Brazil
FIGURE. Drosera communis (a–d): a, habit with emerging inflorescence (Parque Nacional das Sempre-Vivas, MG); b, habit with emerging inflorescence; c, variation in flower color within a population (Parque Nacional da Chapada dos Veadeiros, GO); d, habit (Paranapiacaba, SP). Drosera esmeraldae (e, f): e, habit (Puerto Inirida, Guainía, Colombia); f, flower (Gran Sabana, Bolívar, Venezuela). Drosera graminifolia (g–i): g, habit; h, detail of the leaf bases and stipules; i, flower (Serra do Caraça, MG). Photo credits: a–d, g–i by PMG; e by FR; f by AF.
FIGURE. Drosera spiralis (a–c): a, habit with flowers; b, flower; c, detail of the leaf bases and stipules (Itacambira, MG). Drosera spirocalyx (d–f): d, rosette with emerging inflorescence; e, rosette, side view with flower buds; f, flower (Parque Nacional da Serra do Cipó, MG). Drosera tentaculata (g–i): g, rosette (Gouveia, MG); h, leaf, detail (Diamantina, MG); i, rosettes with flower (Parque Nacional das Sempre-Vivas, MG). Photo credits: all by PMG. in A synopsis of the genus Drosera (Droseraceae) in Brazil
FIGURE. Drosera spiralis (a–c): a, habit with flowers; b, flower; c, detail of the leaf bases and stipules (Itacambira, MG). Drosera spirocalyx (d–f): d, rosette with emerging inflorescence; e, rosette, side view with flower buds; f, flower (Parque Nacional da Serra do Cipó, MG). Drosera tentaculata (g–i): g, rosette (Gouveia, MG); h, leaf, detail (Diamantina, MG); i, rosettes with flower (Parque Nacional das Sempre-Vivas, MG). Photo credits: all by PMG.
FIGURE. Drosera hirtella (a–i): a, b, c, habit of the "type morphotype"; d, habit of the "western morphotype"; e, rosette of the "type morphotype"; f, emerging inflorescence, highlighting the red scape with red eglandular trichomes characteristic of the species; g, fertile individuals of D. hirtella (left plant, with inflorescence emerging to the bottom) and D. lutescens (right plant, with inflorescence emerging to the top left) growing under shaded conditions side by side, highlighting the morphological differences between the two species regarding leaf shape and scape and indumentum color; h, i, flower. a–c, f and h at Serra do Cipó, MG; d and h at Chapada dos Veadeiros, GO; e at Diamantina, MG; g at Cristalina, GO. Photo credits: all by PMG. in A synopsis of the genus Drosera (Droseraceae) in Brazil
FIGURE. Drosera hirtella (a–i): a, b, c, habit of the "type morphotype"; d, habit of the "western morphotype"; e, rosette of the "type morphotype"; f, emerging inflorescence, highlighting the red scape with red eglandular trichomes characteristic of the species; g, fertile individuals of D. hirtella (left plant, with inflorescence emerging to the bottom) and D. lutescens (right plant, with inflorescence emerging to the top left) growing under shaded conditions side by side, highlighting the morphological differences between the two species regarding leaf shape and scape and indumentum color; h, i, flower. a–c, f and h at Serra do Cipó, MG; d and h at Chapada dos Veadeiros, GO; e at Diamantina, MG; g at Cristalina, GO. Photo credits: all by PMG.
FIGURE 44. Syagrus itapebiensis. A. Habit. B. Leaf. C. Leaflets. D. Inflorescence. E. Flowers. F. Prophyll front-view. G. Prophyll side-view. H. Peduncular bract with emerging inflorescence. I in A revision of the genus Syagrus (Arecaceae)
FIGURE 44. Syagrus itapebiensis. A. Habit. B. Leaf. C. Leaflets. D. Inflorescence. E. Flowers. F. Prophyll front-view. G. Prophyll side-view. H. Peduncular bract with emerging inflorescence. I. Fruit showing layers with fleshy mesocarp, white fibrous layer, thin endocarp and central endosperm. J. Fruit. K. Endocarp apex. L. Endocarp base. M. Endocarp side view. All scales are in centimeters, except A and B in decimeters and E in mm. Drawn by Wes Jurgens.
FIGURE 73. Cardamine porphyroneura. A. Leafy rosette. B. Mature and emerging leaf. C in A taxonomic revision of Cardamine L. (Brassicaceae) in New Zealand
FIGURE 73. Cardamine porphyroneura. A. Leafy rosette. B. Mature and emerging leaf. C. Side-view of flower (scale bar 2 mm). D. Front view of flower (scale bar 2 mm). E. Freshly ripened green seed, with purple venation clearly visible through the testa (scale bar 0.25 mm). F. Fully ripened brown seed, with purple venation faint through testa (scale bar 0.25 mm). G. Fully ripened seed with brown testa removed, clearly showing cotyledon venation (scale bar 0.25 mm). Images A–B from Cobb Reservoir, Nelson; C–G from CHR 640757.
FIGURE 4. Vellozia strangii. A. Habit with flowers and fruits. B. Leaf margin, detail showing emergences. C in Velloziaceae in honorem appellatae
FIGURE 4. Vellozia strangii. A. Habit with flowers and fruits. B. Leaf margin, detail showing emergences. C. Flower, showing longitudinal section of hypanthial tube, androecium, style and stigma, with details of hypanthial emergences. D. Apex of sepal, abaxial view. E. Apex of petal, abaxial view. F. Group of six stamens. G. Trilobate stigma. Drawn from Mello-Silva 2458 by Rogério Lupo.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.