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342 results for “plant productivity”
Data from: Soil nutrient heterogeneity alters productivity and diversity of experimental plant communities under multiple global change factors
<p>Plant communities in nature are often challenged by multiple global change factors (GCFs) and also ubiquitously encountered with soil nutrient heterogeneity. So far, however, we know little about the interactive effect of multiple GCFs and soil nutrient heterogeneity on plant communities.</p> <p>We conducted an outdoor mesocosm experiment in which a plant community was either grown in heterogeneous soils consisting of high- and low-nutrient patches, or in homogeneous soils where the same amount of nutrients was evenly distributed. These plant communities were exposed to none (control), single, or a combination of two or four GCFs (i.e., drought, nitrogen deposition, microplastic and cadmium).</p> <p>Biomass of the plant community exposed to drought and nitrogen deposition were greater in heterogeneous than in homogeneous soils, but evenness of the plant community exposed to microplastics was lower. Increasing the number of GCFs increased community biomass more in heterogeneous than in homogeneous soils, but it generally reduced community evenness, independent of soil nutrient heterogeneity. These contrasting responses were related to changing competitive hierarchies and root foraging responses under different treatments.</p> <p>Our results suggest that soil nutrient heterogeneity can alter community productivity and diversity via changing competitive interactions of the component species, depending on both the identity and the number of GCFs acting on the community. These results have important implications for the maintenance of ecosystem functions and services under rapid and complex ongoing global changes.</p>
A biorefinery model for the production of oil and biomethane using castor plants
<p>This study investigated the effects of two nitrogen fertilization levels on seed and oil yield, and the biomethane production from castor husks residue. A biological pretreatment using two white rot fungi was adopted to reduce the lignin content of capsule husks and enhance biomethane production. The study aimed to highlight the potential of castor plants as energy crops using a biorefinery approach to produce biodiesel from the oil and biomethane from the residual biomass in order to reduce agricultural waste.</p>
Herbivory and elevated levels of CO2 and nutrients separately, rather than synergistically, impacted biomass production and allocation in invasive and native plant species
<p><span>Large parts of the Earth are experiencing environmental change caused by alien plant invasions, rising atmospheric concentration of carbon dioxide (CO<sub>2</sub>), and nutrient enrichments. Elevated CO<sub>2</sub> and nutrient concentrations can separately favour growth of invasive plants over that of natives but how herbivory may modulate the magnitude and direction of net responses by the two groups of plants to simultaneous CO<sub>2</sub> and nutrient enrichments remains unknown. In line with the enemy release hypothesis, invasive plant species should reallocate metabolites from costly anti-herbivore defences into greater growth following escape from intense herbivory in the native range</span><span>. Therefore, invasive plants should have</span><span> greater growth than natives </span><span>under simultaneous CO<sub>2</sub> and nutrient enrichments in the absence of herbivory. To test this prediction, we grew nine congeneric pairs of invasive and native plant species that naturally co-occurred in grasslands in China under two levels each of nutrient enrichment (low-nutrient vs. high-nutrient), herbivory (with herbivory vs. without herbivory) and under ambient (412 ± 0.6 ppm) and elevated (790.1 ± 6.2 ppm) levels of CO<sub>2</sub> concentrations in open-top chambers in a common garden. Elevated CO<sub>2</sub> and nutrient enrichment separately increased total plant biomass, while herbivory reduced it regardless of the plant invasive status. High-nutrient treatment caused the plants to allocate a significantly lower proportion of total biomass to roots, while herbivory induced an opposite pattern. Herbivory suppressed total biomass production more strongly in native plants than invasive plants. The plants exhibited significant interspecific and intergeneric variation in their responses to the various treatment combinations. Overall, these results suggest that elevated CO2 and nutrients and herbivory may separately, rather than synergistically, impact productivity of the invasive and co-occurring native plant species in our study system. Moreover, interspecific variation in </span>resource-use strategies was more important than invasive status in determining plant responses to the various treatment combinations.</p>
A dataset of nectar sugar production for flowering plants found in urban greenspaces
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Plant productivity response to inter- and intra-symbiont diversity: mechanisms, manifestations, and meta-analyses
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Variation in the production of plant tissues bearing extrafloral nectaries explains temporal patterns of ant attendance in Amazonian understory plants
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Data from: Multiple facets of diversity effects on plant productivity: species richness, functional diversity, species identity and intraspecific competition
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Spillover effects from invasive Acacia alter the plant-pollinator networks and seed production of native plants
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Global meta-analysis of individual and combined nitrogen inhibitors: Enhancing plant productivity and reducing environmental losses
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Data from: The functional diversity–productivity relationship of woody plants is climatically sensitive
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Plant production decreases more than litter decomposition with rising aridity in drylands
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Drought intensity alters productivity, carbon allocation, and plant nitrogen uptake in fast versus slow grassland communities
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Mycorrhizal fungi compromise production of endophytic alkaloids, increasing plant susceptibility to an aphid herbivore
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Does a history of population co-occurrence predict plant performance, community productivity, or invasion resistance?
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Data from: Soil nutrient heterogeneity alters productivity and diversity of experimental plant communities under multiple global change factors
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Towards rainy high Arctic winters: how experimental icing and summer warming affect tundra plant phenology, productivity and reproduction
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Data from: Food webs obscure the strength of plant diversity effects on primary productivity
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Mangrove diversity enhances plant biomass production and carbon storage in Hainan Island, China
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Data from: Functional traits, not productivity, predict openness to seedling recruitment in alpine plant communities under climatic warming
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Historical context modifies plant diversity–community productivity relationships in alpine grassland
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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)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
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.