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191 results for “Ambrosia artemisiifolia”
Kellogg Biological Station site, station Treatment 7, native successional treatment, abandoned after spring plowing in 1989, study of aboveground net primary productivity of Ambrosia artemisiifolia in units of gramsPerMeterSquaredPerYear on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Kellogg Biological Station (KBS) contains aboveground net primary productivity of Ambrosia artemisiifolia measurements in gramsPerMeterSquaredPerYear units and were aggregated to a yearly timescale.
Kellogg Biological Station site, station Kellogg Biological Station, study of aboveground net primary productivity of Ambrosia artemisiifolia in units of gramsPerMeterSquaredPerYear on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Kellogg Biological Station (KBS) contains aboveground net primary productivity of Ambrosia artemisiifolia measurements in gramsPerMeterSquaredPerYear units and were aggregated to a yearly timescale.
Data from: Rapid evolution of invasive traits facilitates the invasion of common ragweed, Ambrosia artemisiifolia
1. Invasive alien plants, together with organisms introduced for biological control, are ideal study systems with which to address questions of whether, and how fast, organisms adapt to changing environments. We compared populations of common ragweed, Ambrosia artemisiifolia, from native (USA) and introduced (China) ranges at similar latitudes, together with herbivores introduced for biological control, to understand the rate of evolutionary adaptive response of an invasive plant to novel environments. 2. Evolution of phenotypic traits associated with invasiveness was assessed by comparing differentiation in quantitative traits (QST) to that of neutral microsatellite genetic loci (FST) and through climate data. A common-garden experiment estimated quantitative genetic variation associated with competition with grasses and biological control history by beetles. 3. Three growth traits (height, total, and stem biomass) and plasticity associated with additional nutrients were significantly greater in invasive compared to native populations and differed from expectations from genetic drift alone. Native, but not invasive, populations exhibited traits showing evidence of past selection and correlations with climate, consistent with the recent timing of introductions. Competition experiments between invasive populations and a US bunch grass showed reduced competitive ability in populations with a history of biological control, that might indicate a trade-off between competitive ability and herbivore resistance in invasive populations. 4. Our results demonstrate the rapid rate at which traits favouring invasion can evolve in invasive weeds, such as A. artemisiifolia, but also that adaptation may reflect joint effects of release from specialist herbivores and novel climatic conditions.
Ambrosia artemisiifolia (Asteraceae) - inflorescence - whole - unspecified
Image of Ambrosia artemisiifolia (Asteraceae) - inflorescence - whole - unspecified
Ambrosia artemisiifolia (Asteraceae) - leaf - on upper stem
Image of Ambrosia artemisiifolia (Asteraceae) - leaf - on upper stem
Ambrosia artemisiifolia (Asteraceae) - leaf - unspecified
Image of Ambrosia artemisiifolia (Asteraceae) - leaf - unspecified
Ambrosia artemisiifolia (Asteraceae) - stem - showing leaf bases
Image of Ambrosia artemisiifolia (Asteraceae) - stem - showing leaf bases
Ambrosia artemisiifolia (Asteraceae) - whole plant - in flower - general view
Image of Ambrosia artemisiifolia (Asteraceae) - whole plant - in flower - general view
Ambrosia artemisiifolia (Asteraceae) - inflorescence - whole - unspecified
Image of Ambrosia artemisiifolia (Asteraceae) - inflorescence - whole - unspecified
Ambrosia artemisiifolia (Asteraceae) - inflorescence - whole - unspecified
Image of Ambrosia artemisiifolia (Asteraceae) - inflorescence - whole - unspecified
Supplementary material 1 from: Cardarelli E, Musacchio A, Montagnani C, Bogliani G, Citterio S, Gentili R (2018) Ambrosia artemisiifolia control in agricultural areas: effect of grassland seeding and herbivory by the exotic leaf beetle Ophraella communa. NeoBiota 38: 1-22. https://doi.org/10.3897/neobiota.38.23562
Tables S1–S2, Figures S1–S2 : Explanation note: Table S1. Soil characteristics in the three investigated sites; Table S2. O. communa density on non-target species throughout summer 2015; Figure S1. A. artemisiifolia soil seed bank in the three sites; Figure S2. A. artemisiifolia traits in experimental plots.
A Study of Ragweed (Ambrosia Artemisiifolia) Allergy Immunotherapy Tablet in Adults With Ragweed Allergies (P05751)
ClinicalTrials.gov study NCT01469182. IPD Sharing: Not stated. Countries: 0. Publications: 1.
Efficacy and Long-Term Safety of Ragweed (Ambrosia Artemisiifolia) Sublingual Tablet in Adults With a History of Ragweed-Induced Rhinoconjunctivitis With or Without Asthma (Study P05233)(COMPLETED)
ClinicalTrials.gov study NCT00783198. IPD Sharing: Not stated. Countries: 0. Publications: 4.
Efficacy and Long-Term Safety of Ragweed (Ambrosia Artemisiifolia) Sublingual Tablet (SCH 39641) in Adults With a History of Ragweed-Induced Rhinoconjunctivitis With or Without Asthma (Study P05234)
ClinicalTrials.gov study NCT00770315. IPD Sharing: Not stated. Countries: 0. Publications: 4.
Data from: Little plant, big city: a test of adaptation to urban environments in common ragweed (Ambrosia artemisiifolia)
Open the record for dataset details and reuse information.
Data from: Rapid evolution of invasive traits facilitates the invasion of common ragweed, Ambrosia artemisiifolia
Open the record for dataset details and reuse information.
Data from: Allergenic pollen production across a large city for common ragweed (Ambrosia artemisiifolia)
Open the record for dataset details and reuse information.
Supplementary material 1 from: Hall RM, Urban B, Skalova H, Moravcová L, Sölter U, Starfinger U, Kazinczi G, van Valkenburg J, Fenesi A, Konstantinovic B, Uludag A, Lommen S, Karrer G (2021) Seed viability of common ragweed (Ambrosia artemisiifolia L.) is affected by seed origin and age, but also by testing method and laboratory. NeoBiota 70: 193-221. https://doi.org/10.3897/neobiota.70.66915
Supporting tables and figures
Ambrosia artemisiifolia L. (BR0000012231164)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Ambrosia artemisiifolia L. (BR0000010009161)
Belgium Herbarium image of <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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