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3,105 results for “Vegetation =”
Supplementary files for "Data-driven estimation of nitric oxide emissions from global soils based on dominant vegetation covers"
<p>In-situ observations collected from publications, data-driven model codes, DNDC simulation files, and the supporting data for all figures of this study are uploaded. In-situ observations included 1,356 observations of soil nitric oxide (NO) emissions from 192 sites, including 1,032 for cropland soils from 70 sites, 114 for grassland soils from 36 sites, and 208 for forest soils from 86 sites. Data-driven models provided three machine learning methods, including random forest (RF), generalized boosted regression model (GBM), and radial basis function (RBF). The DNDC simulation files included simulation files of 51 selected sites.</p>
Large mammalian herbivores affect arthropod food webs via changes in vegetation characteristics and microclimate
<ol> <li>Large mammalian herbivores are vital components of terrestrial ecosystems, influencing the plants they feed on, but also serving as ecosystem engineers that impact the occurrence and survival of many other organisms. Arthropods are the most abundant and diverse animal group on earth, filling all trophic levels in food webs and facilitating essential ecosystem services. However, the impacts of large herbivores on arthropod communities and the mechanisms via which these impacts are mediated are not fully understood. </li> <li>Here, we experimentally separated the mechanistic pathways whereby large herbivores affect arthropod food webs using a 24-year manipulative multi-site field experiment in the Netherlands. We analyzed the abundance, biomass, and community composition of arthropods in the plant canopy and on the soil surface, both in grazed sites or sites where large herbivores were excluded.</li> <li>We found that the presence of large herbivores resulted in considerable differences in vegetation properties and microclimate which influenced the abundance and biomass of arthropods to varying trophic levels. Large herbivore grazing enhanced the overall abundance and biomass of arthropod herbivores, pollinators, omnivores, and soil-dwelling predators, but reduced that of detritivores, scavengers, parasitoids, and canopy predators. Structural equation models revealed that different trophic groups are affected by grazing via different pathways. Specially, large herbivores facilitated herbivores via increasing plant quality and enhanced ground-dwelling predators via increasing plant diversity. In contrast, plant-dwelling predators were suppressed via decreased plant quantity, and parasitoids were mainly affected by changes in microclimate conditions. </li> <li> <em>Synthesis</em>. Our results show that large mammalian herbivores play a significant role in shaping grassland arthropod food webs and that these impacts were independently mediated by multiple aspects of vegetation properties, i.e., physical structure, plant diversity, standing crop biomass, and leaf nutrient content. Arthropods of different trophic groups responded differently to the large herbivores, and these functional group-specific responses in turn may have strong cascading effects on numerous ecosystem services.</li> </ol>
Data from: Human activities modulate reciprocal effects of a subterranean ecological engineer rodent, Tachyoryctes macrocephalus, on Afroalpine vegetation cover
<p class="MsoNormalCxSpFirst"><span>Human activities, directly and indirectly, impact ecological engineering activities of subterranean rodents. As engineering activities of burrowing rodents are affected by, and reciprocally affect vegetation cover via feeding, burrowing and mound building, human influence such as settlements and livestock grazing, could have cascading effects on biodiversity and ecosystem processes such as bioturbation. However, there is limited understanding of the relationship between human activities and burrowing rodents. The aim of this study was therefore to understand how human activities influence the ecological engineering activity of the giant root-rat (<em>Tachyoryctes macrocephalus</em>), a subterranean rodent species endemic to the Afroalpine ecosystem of the Bale Mountains of Ethiopia. We collected data on human impact, burrowing activity and vegetation during February and March of 2021. Using path analysis, we tested (1) direct effects of human settlement on the patterns of livestock grazing intensity, (2) direct and indirect impacts of humans and livestock grazing intensity on the root-rat burrow density, and (3) whether human settlement and livestock grazing influence the effects of giant root-rat burrow density on vegetation and <em>vice versa</em>. We found lower levels of livestock grazing intensity further from human settlement than in its proximity. We also found a significantly increased giant root-rat burrow density with increasing livestock grazing intensity. Seasonal settlement and livestock grazing intensity had an indirect negative and positive effect on giant root-rat burrow density, respectively, both via vegetation cover. Analysing the reciprocal effects of giant root-rat on vegetation, we found a significantly decreased vegetation cover with increasing density of giant root-rat burrows, and indirectly with increasing livestock grazing intensity via giant root-rat burrow density. Our results demonstrate that giant root-rats play a synanthropic engineering role that affects vegetation structure and ecosystem processes. </span></p>
High-Resolution Vegetation Height Maps for Switzerland in 2017-2020
<p>This dataset comprises 10m-resolution vegetation height maps for Switzerland spanning from 2017 to 2020. It encompasses both mean and maximum vegetation height data, generated through the integration of Sentinel-2 and airborne laser scanning information.</p>
Neuromorphic sequence learning with an event camera on routes through vegetation
<p>code and dataset for paper 'Neuromorphic sequence learning with an event camera on routes through vegetation'.</p>
Data for "False trends in Landsat-based vegetation greenness due to increased image availability over time"
<p>Raster data used in this following paper : "False trends in Landsat-based vegetation greenness due to increased image availability over time". The dataset includes observed greening trends for the European Alps, and sum of observations in the european alps and the arctic.</p>
Data from: Herbivory limits success of vegetation restoration globally
<p>Herbivory limits success of vegetation restoration globally. Restoring vegetation in degraded ecosystems is an increasingly common practice for promoting biodiversity and ecological function, but successful implementation is hampered by an incomplete understanding of the processes limiting restoration success. By assembling terrestrial and aquatic studies globally (2594 experimental tests from 610 articles), we reveal substantial herbivore control of vegetation under restoration. Herbivores at restoration sites reduced vegetation abundance more strongly (by 89%, on average) than at relatively undegraded sites, and suppressed, rather than fostered, plant diversity. These effects were particularly pronounced in regions with higher temperatures and lower precipitation. Temporally excluding targeted herbivores or introducing their predators improved restoration by magnitudes similar to or greater than managing plant competition or facilitation. Thus, managing herbivory is a promising strategy for enhancing vegetation restoration efforts.</p> <p>This ZIP file contains the following datasets and code for the above paper:</p> <p>1) Xu_ConsumerEffects.xlsx This file contains the Global Consumer Effects dataset (and several subsets)<br> 2) Xu_PlantInteractions.xlsx This file contains the Global Plant Interactions and Restoration dataset<br> 3) Code_Xu_Restoration_Ms.R This file contains examples of main R code used. </p> <p>See the Supplementary Materials of the paper for methods used to collect and analyze these data.</p>
QMT Pollen and Charcoal Data for "Anthropogenic impact on mountain vegetation of Southeast China lagged coastal plains by 2000–4000 years"
<p>This data is the percentage&concentration of pollen and charcoal in Qianmutian peatland located in Southeast China for the article“Anthropogenic impact on mountain vegetation of Southeast China lagged coastal plains by 2000–4000 years”.</p>
Germplasm diversity of sunflower volatile terpenoid profiles across vegetative and reproductive organs
<p>Cultivated sunflower (<em>Helianthus</em> <em>annuus</em>) is the fourth most important oilseed crop globally and is known to have experienced multiple genetic bottlenecks during domestication and improvement. Homogenization of crop germplasm may limit breeding efforts to improve pest and pathogen resistance or optimize other biotic interactions like pollinator attraction. Such interactions are often strongly influenced by plant phytochemistry, especially volatile compounds like terpenoids. Here we use solid-phase microextraction gas chromatography mass spectrometry (SPME GC-MS) to evaluate volatile phytochemistry across leaves, involucral bracts, disc florets, and ray floret petals in a collection of twelve inbred lines selected to represent a cross-section of sunflower germplasm diversity. Results indicate considerable compositional diversity of volatiles among lines, though substantial reduction in total volatile abundance relative to wild <em>H. annuus</em>. From leaves and bracts to disc florets and petals, we observe a strong increase in the proportion of monoterpenoids relative to sesquiterpenoids accompanying the transition to reproductive structures, with consistently over 85% monoterpenoids in disc florets and petals. This pattern is driven by substantially higher production of monoterpenoids (especially alpha-pinene and sabinene) in reproductive structures. Sesquiterpenoid production is roughly similar across organs, and in leaves varies among lines from 21–55% of volatiles, dominated by cadinene-type sesquiterpenoids. This work suggests that the compositional diversity of volatile terpenoids within cultivated germplasm may be sufficient for many breeding applications, though for breeding increased volatile production the use of wild <em>H. annuus</em> and other wild <em>Helianthus</em> germplasm may be necessary.</p>
Effects of forest roads on vegetation biodiversity and soil characteristics in Hyrcanian forests
<p>As one of the main components of forest operations and sustainable management, forest roads affect the vegetation communities around the road. In this study, the effects of the edge of forest roads were investigated to understand the changes caused by the network of forest roads on the Hyrcanian forest ecosystem in northern Iran. In order to investigate the impact of forest roads on the biodiversity of herbaceous species, tree regeneration and lichen. Sampling was used at different distances from the road in two control and harvested areas. The effects of roads on vegetation diversity in relation to soil characteristics were also investigated. The results showed that harvesting caused the destruction and reduction of tree regeneration, herbaceous and lichen, but the physical and chemical properties of the soil were not affected. The distance from the road has affected the diversity and richness of herbaceous and lichen, tree regenaration and all physical and chemical characteristics of the soil (except C). There was a significant correlation between most of the physical and chemical properties of the soil with the regeneration of trees and herbaceous species. Also, most of the physical and chemical properties of soil have increased with increasing distance from the road. Results showed that the buffering effect of the roadside in these forests up to a distance of 45 meters had an effect on biodiversity and richness. Also, the results of this study are consistent with the fact that the road affects the biodiversity and properties of the forest soil. </p>
Vegetation dataset Kalahari 2021
<p>Woody and herbaceous vegetation survey data were collected on three wildlife and three cattle farms in areas that were either selectively bush controlled or bush encroached. Surveys were conducted along transects at four distances from waterpoints. Herbaceous plants were divided into four plant functional types (PFT): annual and perennial, forbs and grasses. Data were collected in April 2021 in the Kalahari Molopo region, South Africa.</p>
Mountain with vegetation
Mountain I made for this project ---> https://www.artstation.com/artwork/B1YkgD . Dont hesitate to decimate in your program of choice as the mesh itself is a little over 2 million tris. The terrain was generated and textured in Gaea and exported in Blender. Source: Objaverse 1.0 / Sketchfab
Online WIC Nutrition Education to Promote Farmers' Market Fruit and Vegetable Purchases and Consumption
ClinicalTrials.gov study NCT02565706. IPD Sharing: YES. Countries: 1. Publications: 5.
Fruit and Vegetable Juice Concentrate Effects on RBP4 and Antioxidant Capacity in Lean and Overweight 6-10 Year Old Boys
ClinicalTrials.gov study NCT00842543. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Assessment of a Fruit and Vegetable Prescription Program for Children
ClinicalTrials.gov study NCT04767282. IPD Sharing: YES. Countries: 1. Publications: 8.
Variations in Palatability and Portion Size of Vegetables on Meal Intake of Preschool Children
ClinicalTrials.gov study NCT03926065. IPD Sharing: NO. Countries: 1. Publications: 1.
Effect of Increased Fruit and Vegetable Intake on Chronic Obstructive Pulmonary Disease (COPD)
ClinicalTrials.gov study NCT00435708. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Fruit and Vegetable Biomarker Discovery
ClinicalTrials.gov study NCT05621863. IPD Sharing: YES. Countries: 1. Publications: 1.
Eating Fruits and Vegetables With Pleasure!
ClinicalTrials.gov study NCT07387289. IPD Sharing: NO. Countries: 1. Publications: 24.
Effects of Fermented Vegetables on Gut Microflora and Inflammation in Women
ClinicalTrials.gov study NCT03407794. IPD Sharing: NO. Countries: 1. Publications: 2.
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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.