{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Pigati, Jeffrey S.", "hasEmail": "mailto:jpigati@usgs.gov"}, "description": "The present study investigates the environmental significance of the oxygen isotopic composition of several modern land snail species collected along two north-to-south transects in Alaska and Scandinavia at latitudes between 60 and 70 \u00b0N. We tested the hypothesis that land snail shell \u03b418O values primarily track precipitation \u03b418O. The results show that shell \u03b418O values from Scandinavia were ~5.1\u2030 enriched in 18O with respect to snails from Alaska, equivalent to differences in precipitation \u03b418O values between the two regions. Within the Alaskan transect, shell \u03b418O values increased with observed increasing air temperature and precipitation \u03b418O, whereas shell \u03b418O values from Scandinavia did not correlate to instrumental climate data because of a reduced climatic gradient across the locations sampled. In addition, shell \u03b418O values differed significantly among sympatric species, with larger species consistently exhibiting higher \u03b418O values, which implies that species-level isotopic variations should be considered at the local and microhabitat scale. However, when snail shell \u03b418O values from this study are combined with previously published data from North America and Europe, we see evidence that shell \u03b418O track precipitation \u03b418O across latitudes, even when different species are combined because climate gradients are greater than variations between taxa.", "distribution": [{"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.61cb3677d34e0fd3e7b3f440.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_61cb3677d34e0fd3e7b3f440", "keyword": ["Alaska", "Scandinavia", "USGS:61cb3677d34e0fd3e7b3f440", "calibration", "high latitudes", "land snail", "oxygen isotopes", "paleoclimate"], "modified": "2022-01-27T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-150.7000, 60.5000, 12.2000, 69.7000", "theme": ["geospatial"], "title": "Data release for Oxygen  isotopes of land snail shells in high latitude regions"}