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24 results for “nantucket”
Comparing harvestmen species composition between habitats on Nantucket Island, Massachusetts
<p>Dataset submitted in fulfillment of a 2010 Nantucket Biodiversity Initiative grant.</p> <p>From 2006 through 2008, we collected surface invertebrate specimens using pitfall traps from a variety of habitats on Nantucket Island and Tuckernuck Island, Massachusetts. In this project, we sorted 413 harvestmen from these samples, identified all specimens to species, and compared species distributions within four general habitat types. We identified all four species that appear on a historic species list from the late 1920’s and we added the non-native species Phalangium opilio. We found that H. maculosus prefers open heathland habitat over dense heathland and tupelo forest. Other species showed no significant preference for a specific habitat. We continue to sort specimens.</p> <p>allHarvestmentData.csv<br> anovaData.csv - data used for anova<br> dataDictionary.csv<br> mckenna-foster-paradis-nbi-report-2011.pdf<br> mckenna-foster-paradis-nbi-poster-2011.pdf - slides for a poster presentation at the 2011 NBIconference</p>
Data for Mooring Impacts on Zostera marina Meadows and Associated Epifauna in Nantucket Harbor, Massachusetts, USA
<p>Submitted in fulfillment of a 2015 Nantucket Biodiversity Initiative grant.<br> <br> Excerpt from thesis abstract: "To explore the connections between mooring scarring, the surrounding seagrass meadow condition and epifaunal community, in the second part of this thesis I measured 30 mooring scars to determine average scar size. To explore any potential "halo" effect around mooring scars for seagrass or epifauna and to seek any difference in epifaunal community between mooring and reference sites I also sampled paired sites at eight locations in Nantucket Harbor, Massachusetts three times each in the summer of 2015. Each location consisted of a meadow site actively experiencing mooring scarring and a reference site without moorings. My conservative sampling methods of the 30 sampled mooring scars found scars to average 21.1m2. Across my paired sites, seagrass was found to have lower cover and lower canopy height in mooring versus reference sites. Seagrass cover and canopy height were lower in the first few meters (typically 2-3m) surrounding each scar in comparison to paired reference quadrats indicating a "halo" effect of each scar. I did not detect a difference in epifaunal community composition or density per blade between mooring and reference sites; however, the relatively constant per blade concentration of epifauna combined with the differences in seagrass biomass between the mooring versus reference sites indicate an overall increase in the total amount of epifauna in areas with less disturbance. Epifaunal community composition was different and between locations and sampling dates indicating these factors are more important than proximity to mooring scarring in determining epifaunal abundance and richness."</p>
Continuation of the Earthworm Survey on Nantucket, Tuckernuck, and Muskeget Islands, Massachusetts
<p>This dataset was submitted in fulfillment of a 2008 Nantucket Biodiversity grant.</p> <p>We collected earthworms on Nantucket, Tuckernuck, and Muskeget Islands, MA using a modified liquid mustard extraction method. We found earthworms on all three islands and added 54 specimens to the collection. We identified a new island record (Lumbricus rubellus) and the species list now contains six species. Dendrodrilus rubidus and Dendrobaena octaedra are the most common species numerically. Some areas of Nantucket appear to have no earthworms, but we predict they will be eventually colonized by litter dwelling species.</p> <p>allEarthwormData.csv<br> dataDictionary.csv<br> litterMeasurements.csv - Not used in report, collection method in data dictionary<br> mckenna-foster-arntzen-nbi-report-2010.pdf</p>
Testing the Rapid Assessment Protocol for Spiders and Millipedes in Nantucket Sandplain Grassland and Coastal Heathland
<p>Submitted in fulfillment of a 2009 Nantucket Biodiversity Initiative grant.<br> <br> We tested a Rapid Assessment Protocol for Spiders and Millipedes (RAPSM) in sandplain grassland and coastal heathland on Nantucket Island, Massachusetts. The objective of this protocol is to efficiently capture most of the available species within a defined area and provide species diversity datasets that are comparable between habitats. The RAPSM requires a combination of two person-hours of litter sorting and one person-hour of hand collecting (sweep-netting) in individual 100 m2 circular plots. We collected 538 spiders representing 36 species (188 were identifiable) from seven plots. The average number of spiders collected (adult and juvenile) per plot was 77 and the average number of species per plot was 12. On average, there are 0.77 spiders per square meter of sandplain grassland and coastal heathland within our study area. Litter sorting produced the most complete collection as indicated by accumulation curves. The RAPSM species list contains 71 percent of the species in a season adjusted species list for the study area and they are 58 percent similar. Our data suggest there is high beta diversity in the sandplain grassland and coastal heathland habitat. Millipedes will be sent to the Chicago Field Museum for identification.</p>
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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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.