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36 results for “lawns”
Potential Methane Production and Oxidation Rates and Porewater Chemistry Across Peatland Hummocks and Lawns
<p>This dataset contains potential methane (CH<sub>4</sub>) production and oxidation rates and porewater chemistry (dissolved oxygen, pH, redox potential, dissolved CH<sub>4</sub>, and CH<sub>4</sub> stable isotopes) measurements collected from hummocks and lawns in a poor fen in New Hampshire, USA. Potential CH<sub>4</sub> production and oxidation rates determined via incubations and dissolved oxygen measurements were collected in July 2018. Porewater CH<sub>4</sub> concentration, δ<sup>13</sup>C-CH<sub>4</sub> and δD-CH<sub>3</sub>D, and Eh/pH were collected in July/August 2020. The data file contains a "README" tab with a guide for variable units and descriptions. </p>
Grazing lawns and overgrazing in frequently grazed grass communities
<p>Frequent grazing can establish high forage value grazing lawns supporting high grazer densities, but can also produce overgrazed grass communities with unpalatable or low grass basal cover, supporting few grazers. Attempts to create grazing lawns via concentrated grazing, with a goal to increase grazer numbers, are thus risky without knowing how environmental conditions influence the likelihood of each outcome.</p> <p>We collected grass species and trait data from 33 frequently grazed grass communities across eastern South Africa (28 sites) and the Serengeti National Park, Tanzania (5 sites), covering wide rainfall (336–987 mm.yr-1) and soil (e.g. 44–93% sand) gradients. We identified four grass growth forms using hierarchical clustering on principal components analyses of trait data, and assessed trait-environment and growth form-environment relationships using fourth corner and principal components analyses.</p> <p>We distinguished two palatable grass growth forms that both attract yet resist grazers, and comprise grazing lawns: 1) 'lateral attractors' that spread vegetatively via stolons and rhizomes, and 2) 'tufted attractors' that form isolated tufts, and may have alternate tall growth forms. By contrast, 3) tough, upright, tufted 'resisters', and 4) 'avoiders' with sparse architectures or that grow appressed to the soil surface, are of little forage value and avoided by grazers.</p> <p>Grazing lawns occurred across a wide range of conditions, typically comprising lateral attractor grasses in drier, sandy environments, and tufted attractor grasses in wetter, low-sand environments. Resisters occurred on clay-rich soils in mesic areas, while avoiders were widespread but scarce.</p> <p>While grazing lawns can be established under most conditions, monitoring their composition and cover is important, as the potential for overgrazing seems as widely relevant. Tufted attractor-dominated lawns appear somewhat more vulnerable to degradation than lateral attractor-dominated lawns. Increased avoider or resister abundance both reduce forage value, although resisters may provide better soil protection.</p>
Fig. 1 in New record of five ciliate species from temporary ponds on a grass lawn
Fig. 1. Sampling site. Temporary ponds on a lawn.
Measured and modeled data of the thermo-radiative and hydrological exhanges of a lawn in a residential area (FluxSAP 2012 campaign)
<p>The dataset includes wind, soil water content and soil temperature data measured in a private home garden collected during the FluxSAP campaign in Nantes in 2012. It also includes equivalent data modeled by the surface model for natural soils and vegetation called ISBA for four sensitivity experiments corresponding to different model configurations.</p>
Grasshoppers, other arthropods, plant, and soil data from Konza Prairie bison grazing lawns
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Grazing lawns and overgrazing in frequently grazed grass communities
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Small-scale fires interact with herbivore feedbacks to create persistent grazing lawn environments
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American Residential Macrosystems - Lawn plant data within residential yards in seven major metropolitan areas, 2012-2015
"In seven major U.S. metropolitan cities (Boston, Baltimore, Los Angeles, Miami, Minneapolis/St. Paul, Salt Lake City, and Phoenix), 1m2 plots were sampled in residential front and backyards, as well as nearby natural areas, in order to evaluate the plant community composition, diversity, and percent cover of plant species. In addition, in Los Angeles and Salt Lake City, full yard plant communities were also sampled for a plant community of the entire yard. "
Survey results. attitudes on choices for lawn care and fertilization.
We designed our methods to estimate carbon, nitrogen, and phosphorus fluxes through individual households, and to address two primary questions: 1. How are these fluxes distributed across households? 2. What biophysical and socioeconomic factors contribute to differences in these fluxes across households? Our hybrid approach combines: 1. A mailed survey 2. Energy provider records 3. On-the-ground landscape measurements 4. A computational tool (the Household Flux Calculator) 4. Parcel data (interpreted using GIS) The resulting dataset includes information on biophysical and socioeconomic variables that potentially influence household-level fluxes of elements. Using this method to study element fluxes at the household level allows us to explicitly link consumption choices and element fluxes.
Lawn Survey: Twin Cities Household Ecosystem Project
We designed our methods to estimate carbon, nitrogen, and phosphorus fluxes through individual households, and to address two primary questions: 1. How are these fluxes distributed across households? 2. What biophysical and socioeconomic factors contribute to differences in these fluxes across households? Our hybrid approach combines: 1. A mailed survey 2. Energy provider records 3. On-the-ground landscape measurements 4. A computational tool (the Household Flux Calculator) 4. Parcel data (interpreted using GIS) The resulting dataset includes information on biophysical and socioeconomic variables that potentially influence household-level fluxes of elements. Using this method to study element fluxes at the household level allows us to explicitly link consumption choices and element fluxes.
Figure 2 in The behaviour of Cotinis nitida Linnaeusı the green June beetle (Coleoptera: Scarabaeidae)ı on mowed lawns makes them especially vulnerable to bird predators
Figure 2. An American crow searching for prey while walking on the lawn in the manner of all avian predators of the green June beetle except the blue jays that scan for prey while perching in trees in and around the lawn in northern Virginia.
Distribution. Endemic to N Australia, with two main populations, one in the Kimberley region of Western Australia that extends into W Northern Territory and a second from NC Northern Territory to Boodjamulla (= Lawn Hill) National Park in NW Queensland; also present on Groote Eylandt I. in Pseudocheiridae
Distribution. Endemic to N Australia, with two main populations, one in the Kimberley region of Western Australia that extends into W Northern Territory and a second from NC Northern Territory to Boodjamulla (= Lawn Hill) National Park in NW Queensland; also present on Groote Eylandt I.
Data from: A novel mechanism for grazing lawn formation: large herbivore-induced modification of the plant-soil water balance
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Data from: The role of browsers in maintaining the openness of savanna grazing lawns
<p>1. In savannas, ruminant herbivores can have divergent impacts on tree recruitment and resulting woody cover. Heavy grazing by cattle results in woody thickening, whereas intensive grazing by wildlife instead tends to be associated with lower woody cover.</p> <p>2. To disentangle why woody cover is low in areas heavily grazed by wildlife, we tested (I) whether short-grass environments attract indigenous mammalian browsers; (II) whether preference for short grass decreases with browser body mass because of differences in predator susceptibility; and (III) whether these translate into suppression of seedlings and saplings on grazing lawns, thus maintaining their openness.</p> <p> 3. This work was conducted in Kruger National Park (KNP) and Hluhluwe iMfolozi Park (HiP), South Africa. In KNP, the effect of grass height on browser abundance (estimated using dung counts), and on the utilisation of woody plants by browsers (using a bite-score approach) was tested. An exclosure experiment tested the effect of grass height and browser removal on seedling survival and sapling growth of a dominant woody plant species in a short- and tall-grass mosaic. Finally, in HiP, the effect of grass height and browser removal were tested on the growth rates of a range of woody species, monitored over ten years, across ten sites.</p> <p>4. Steenbok and impala selected short- over tall-grass as preferred browsing sites, while elephant preferred tall grass. Browser abundance on short grass decreased with browser body mass, indicating that predator avoidance might be a key factor driving small-bodied browsers to utilize grazing lawns. Grass height did not explain variation in the utilisation of woody plants by browsers.</p> <p>5. Seedling survival was lowest in short grass and when browsers were present, with mortality occurring in two out of every three seedlings. Also, sapling growth was lowest in short grass, although browser removal had no effect. Evidence for increased browser impact on grazing lawns was clearest from our long-term exclosure experiment in HiP, which demonstrated that the effect of browsers on sapling growth rates was strongly modified by the presence of short grass.</p> <p>6. <i>Synthesis</i>. These results provide support for the hypothesis that browsers, particularly small-bodied browsers and mixed feeders, are attracted to short-grass habitats, and that, they help maintain grazing lawn openness by suppressing woody seedling survival and sapling growth where grass is kept short by grazers.</p>
Data from: The role of browsers in maintaining the openness of savanna grazing lawns
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Figure 1. A in The behaviour of Cotinis nitida Linnaeusı the green June beetle (Coleoptera: Scarabaeidae)ı on mowed lawns makes them especially vulnerable to bird predators
Figure 1. A blue jay perched in a pin oak (Quercus palustris) growing on the farm lawn searching for male beetles about to land on the grass after the insects had detected a pheromone-releasing female near the spot. Jays will fly up to 35 meters from their perches in trees to capture beetles that have slowed their flight and dropped close to or onto the lawn near a calling female.
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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.