Mackay, Helen; Whelton, Helen; Reuther, Joshua; Potter, Ben; Edwards, Mary; Henderson, Andrew; Bull, Ian; Baldwin, Elinor; Clarke, Charlotte; Mayfield, Roseanna; Davies, Kimberley L; Van Hardenbroek, Maarten; Bigelow, Nancy H: Fecal biomarkers from Chisholm Lake, Alaska [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993064 (dataset in review)
Abstract:
This dataset includes faecal lipid biomarker data from a lake sediment core from central Alaska and modern faecal biomarker reference data from Alaskan herbivores and omnivores/carnivores. The purpose of this study was to assess the sensitivity and validity of lacustrine faecal steroid reconstructions of human and animal presence within the landscape by combining analyses of modern faecal samples and a sediment archive from Chisholm Lake, Alaska, where historical and archaeological population changes are well documented. To achieve this, we analysed faecal steroids (stanols and bile acids), which are biomolecules that are deposited in the landscape from faeces of higher vertebrates. The lake sediment core was recovered from Chisholm Lake in the Tanana Valley of interior Alaska (64.302267 N, 146.687331 W) in September 2019 using a Bolivia corer. Lead-210 (210Pb) measurements were completed by Flett Research and radiocarbon (14C) measurements were completed by the Center for Applied Isotope Studies at the University of Georgia. We extracted lipid biomarkers from 15 core subsamples and 50 modern faecal reference samples and, following saponification and column chromatography, faecal biomarkers were identified and quantified by GC-MS at the University of Bristol.
Supplement to:
Mackay, Helen; Whelton, Helen; Reuther, Joshua; Potter, Ben; Edwards, Mary; Henderson, Andrew; Bull, Ian; Baldwin, Elinor; Clarke, Charlotte; Mayfield, Roseanna; Davies, Kimberley L; Van Hardenbroek, Maarten; Bigelow, Nancy H (in review): Testing the limits of lacustrine faecal lipid biomarkers as tools to document human and herbivore presence in Alaskan and Eastern Beringian landscapes. Quaternary Science Reviews
Funding:
European Research Council (ERC), grant/award no. FP/2007-2013: National Environmental Isotope Facility
Natural Environment Research Council (NERC), grant/award no. NEIF #2341.0321: Faecal steroid analysis of Chisholm Lake Alaska
Coverage:
Median Latitude: 65.079962 * Median Longitude: -146.864194 * South-bound Latitude: 64.033861 * West-bound Longitude: -153.858840 * North-bound Latitude: 70.713560 * East-bound Longitude: -145.160556
Date/Time Start: 2017-06-26T00:00:00 * Date/Time End: 2024-08-22T00:00:00
Event(s):
APP-24-01 * Latitude: 64.841651 * Longitude: -147.777664 * Date/Time: 2024-08-22T00:00:00 * Location: Alaska * Campaign: EAGER * Method/Device: Surface sample (SURF_S) * Comment: Mallard (Anas platyrhynchos)
APP-24-02 * Latitude: 64.841522 * Longitude: -147.778048 * Date/Time: 2024-08-22T00:00:00 * Location: Alaska * Campaign: EAGER * Method/Device: Surface sample (SURF_S) * Comment: Mallard (Anas platyrhynchos)
APP-24-03 * Latitude: 64.841367 * Longitude: -147.777577 * Date/Time: 2024-08-22T00:00:00 * Location: Alaska * Campaign: EAGER * Method/Device: Surface sample (SURF_S) * Comment: Mallard (Anas platyrhynchos)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Mackay, Helen | |||
| 2 | Latitude of event | Latitude | Mackay, Helen | |||
| 3 | Longitude of event | Longitude | Mackay, Helen | |||
| 4 | Date/Time of event | Date/Time | Mackay, Helen | |||
| 5 | Species | Species | Mackay, Helen | |||
| 6 | Cholesterol, per unit faeces dry mass | Cholesterol/faecal dm | µg/g | Mackay, Helen | ||
| 7 | 24-Ethylcholest-5-en-3beta-ol, per unit faeces dry mass | b-Sitosterol/faecal dm | µg/g | Mackay, Helen | ||
| 8 | Stigmasterol, per unit faeces dry mass | Stigmasterol/faecal dm | µg/g | Mackay, Helen | ||
| 9 | 24-methylcholest-5-en-3beta-ol, per unit faeces dry mass | Campesterol/faecal dm | µg/g | Mackay, Helen | ||
| 10 | 5alpha-Cholestan-3beta-ol, per unit faeces dry mass | Cholestanol/faecal dm | µg/g | Mackay, Helen | ||
| 11 | 5alpha-Stigmastan-3beta-ol, per unit faeces dry mass | 5a-Stigmastanol/faecal dm | µg/g | Mackay, Helen | ||
| 12 | 5alpha-Campestan-3-one, per unit faeces dry mass | 5a-Campestanol/faecal dm | µg/g | Mackay, Helen | ||
| 13 | 5beta-Cholestan-3beta-ol, per unit faeces dry mass | Coprostanol/faecal dm | µg/g | Mackay, Helen | ||
| 14 | Epicoprostanol, per unit faeces dry mass | Epicoprostanol/faecal dm | µg/g | Mackay, Helen | ||
| 15 | 5beta-Stigmastanol, per unit faeces dry mass | 5b-Stigmastanol/faecal dm | µg/g | Mackay, Helen | ||
| 16 | Epi-5beta-Stigmastanol, per unit faeces dry mass | Epi-5b-Stigmastanol/faecal dm | µg/g | Mackay, Helen | ||
| 17 | 5beta-Campestanol, per unit faeces dry mass | 5b-Campestanol/faecal dm | µg/g | Mackay, Helen | ||
| 18 | Epi-5beta-Campestanol, per unit faeces dry mass | Epi-5b-Campestanol/faecal dm | µg/g | Mackay, Helen | ||
| 19 | Cholic acid, per unit faeces dry mass | CA/faecal dm | µg/g | Mackay, Helen | ||
| 20 | Chenodeoxycholic acid, per unit faeces dry mass | CDCA/faecal dm | µg/g | Mackay, Helen | ||
| 21 | Lithocholic acid, per unit faeces dry mass | LCA/faecal dm | µg/g | Mackay, Helen | ||
| 22 | Deoxycholic acid, per unit faeces dry mass | DCA/faecal dm | µg/g | Mackay, Helen | ||
| 23 | Ursodeoxycholic acid, per unit faeces dry mass | UDCA/faecal dm | µg/g | Mackay, Helen |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
950 data points