Byron J. AdamsDiana H. WallNoah FiererW. Berry LyonsIan D. HoggMelisa A. DiazNicholas B. DragoneNathan P. LemoineAndré L. C. FrancoMarci Shaver-AdamsGeoffrey Schellens 2021-10-07 tabular digitial data McMurdo Dry Valleys LTER McMurdo Dry Valleys LTER 10.6073/pasta/644b1247645a0d9f334e949a19d597df https://mcm.lternet.edu/content/soil-invertebrate-surveys-shackleton-glacier-region-antarctica-during-2017-2018-austral During the 2017-2018 austral summer, a survey of soil invertebrate diversity and abundance was conducted throughout the Shackleton Glacier region of Antarctica to investigate whether habitat suitability, taxonomic diversity, and community composition follow predictable temporal patterns after the Last Glacial Maximum (LGM). Soil samples were collected along elevation transects from twelve ice-free areas to capture maximum variation in soil properties, geochemistry, and surface exposure age. This data package includes invertebrate abundances (nematodes, tardigrades, rotifers) for each sample categorized by species, sex, and maturity (juvenile, adult). Funding for this work was provided by the National Science Foundation via grants #OPP-1341736 to BJA, #OPP-1341648 to DHW, #OPP-1341631 to WBL, #OPP-1341629 to NF, and #GRFP-60041697 to MAD. Data management support was provided by the National Science Foundation for Long Term Ecological Research via grant #OPP-1637708. 2017-12-26 2018-02-06 ground condition As needed The Shackleton Glacier (~84.5 to 86.4°S; ~130 km long and ~10 km wide) is a major outlet glacier of the East Antarctic Ice Sheet (EAIS) which drains north into the Ross Embayment. Center point approximated from bounding box coordinates provided by André L. C. Franco in October 2021. -170.360481000000 -170.360481000000 -85.615938000000 -85.615938000000 LTER Core Areas disturbance population dynamics None <cntperp> <cntper>McMurdo Dry Valleys LTER Information Manager</cntper> </cntperp> <cntemail>im@mcmlter.org</cntemail> Name: Renée F. Brown Role: data manager Not Applicable Not Applicable Field and/or Lab Methods A total of 232 soils (0-5 cm depth) were collected from twelve ice-free areas along the Shackleton Glacier from December 2017 to January 2018. The locations include Roberts Massif, Schroeder Hill, Bennett Platform, Kitching Ridge, Mt. Augustana, Mt. Heekin, Thanksgiving Valley, Taylor Nunatak, Mt. Franke, Mt. Wasko, Nilsen Peak, and Mt. Speed, and range from 150 to 2221 m.a.s.l. in elevation. Between 14 and 26 soil samples were collected along elevation transects (up to 2000 m in length) from each location to capture maximum variation in soil properties, geochemistry, and surface exposure age.Nematodes, tardigrades and rotifers were extracted using a sugar centrifugation technique developed for Antarctic soils (Freckman &amp; Virginia, 1993), and identified and enumerated via light microscopy. Mites and springtails were picked individually from each sample using a dissection microscope by mixing 50 g soil with 500 ml sugar solution (454 g L-1) and removing individual animals as they floated to the surface. However, microarthropods were depauperate such that they were not assessed in this study. Tardigrades and rotifers were identified to the phylum level, nematodes were identified to genus (Scottnema, Eudorylaimus, and Plectus) and as living or dead, life stage (juveniles or adults), and sex. Soil gravimetric moisture was measured by weighing 50 g subsamples before and after oven drying at 105°C for 24 h. Invertebrate abundances were assessed as the number of individual animals per kilogram of dry soil.Reference Cited: Freckman, D. W., &amp; Virginia, R. A. (1993). Extraction of nematodes from Dry Valley Antarctic soils. Polar Biology, 13(7), 483–487. https://doi.org/10.1007/BF00233139 A total of 232 soils (0-5 cm depth) were collected from twelve ice-free areas along the Shackleton Glacier from December 2017 to January 2018. The locations include Roberts Massif, Schroeder Hill, Bennett Platform, Kitching Ridge, Mt. Augustana, Mt. Heekin, Thanksgiving Valley, Taylor Nunatak, Mt. Franke, Mt. Wasko, Nilsen Peak, and Mt. Speed, and range from 150 to 2221 m.a.s.l. in elevation. Between 14 and 26 soil samples were collected along elevation transects (up to 2000 m in length) from each location to capture maximum variation in soil properties, geochemistry, and surface exposure age.Nematodes, tardigrades and rotifers were extracted using a sugar centrifugation technique developed for Antarctic soils (Freckman & Virginia, 1993), and identified and enumerated via light microscopy. Mites and springtails were picked individually from each sample using a dissection microscope by mixing 50 g soil with 500 ml sugar solution (454 g L-1) and removing individual animals as they floated to the surface. However, microarthropods were depauperate such that they were not assessed in this study. Tardigrades and rotifers were identified to the phylum level, nematodes were identified to genus (Scottnema, Eudorylaimus, and Plectus) and as living or dead, life stage (juveniles or adults), and sex. Soil gravimetric moisture was measured by weighing 50 g subsamples before and after oven drying at 105°C for 24 h. Invertebrate abundances were assessed as the number of individual animals per kilogram of dry soil.Reference Cited: Freckman, D. W., & Virginia, R. A. (1993). Extraction of nematodes from Dry Valley Antarctic soils. Polar Biology, 13(7), 483–487. https://doi.org/10.1007/BF00233139 unknown SHACKLETON_INVERTS Soil invertebrate survey data. Dataset code Internal dataset code. The data provider Internal dataset code. Sampling site Sampling site code. The data provider AV Mount Augustana The data provider BP Bennett Platform The data provider HV Mount Heekin The data provider KR Kitching Ridge The data provider MF Mount Franke The data provider MSP Mount Speed The data provider MW Mount Wasko The data provider NP Nilsen Peak The data provider RM Roberts Massif The data provider SH Schroeder Hill The data provider TGV Thanksgiving Valley The data provider TN Taylor Nunatak The data provider Transect ID Elevation transect id at the sampling site where the sample was collected. The data provider Elevation transect id at the sampling site where the sample was collected. Replicate ID Sample replicate id. The data provider Sample replicate id. Latitude Latitude of sampling location. The data provider decimalDegrees Longitude Longitude of sampling location. The data provider decimalDegrees Elevation Elevation of sampling location. The data provider meter Total soil mass Total soil mass collected. The data provider grams Wet soil mass Wet soil mass used for extractions. The data provider grams Dry soil mass Dry soil mass used for extractions. The data provider grams Soil moisture Soil moisture content of sample. The data provider gramsPerGram SN_M_LIVING Abundance of living adult male Scottnema represented as individuals per kg of dry soil. The data provider Abundance of living adult male Scottnema represented as individuals per kg of dry soil. SN_M_DEAD Abundance of dead adult male Scottnema represented as individuals per kg of dry soil. The data provider Abundance of dead adult male Scottnema represented as individuals per kg of dry soil. SN_F_LIVING Abundance of living adult female Scottnema represented as individuals per kg of dry soil. The data provider Abundance of living adult female Scottnema represented as individuals per kg of dry soil. SN_F_DEAD Abundance of dead adult female Scottnema represented as individuals per kg of dry soil. The data provider Abundance of dead adult female Scottnema represented as individuals per kg of dry soil. SN_J_LIVING Abundance of living juvenile Scottnema represented as individuals per kg of dry soil. The data provider Abundance of living juvenile Scottnema represented as individuals per kg of dry soil. SN_J_DEAD Abundance of dead juvenile Scottnema represented as individuals per kg of dry soil. The data provider Abundance of dead juvenile Scottnema represented as individuals per kg of dry soil. EU_M_LIVING Abundance of living adult male Eudorylaimus represented as individuals per kg of dry soil. The data provider Abundance of living adult male Eudorylaimus represented as individuals per kg of dry soil. EU_M_DEAD Abundance of dead adult male Eudorylaimus represented as individuals per kg of dry soil. The data provider Abundance of dead adult male Eudorylaimus represented as individuals per kg of dry soil. EU_F_LIVING Abundance of living adult female Eudorylaimus represented as individuals per kg of dry soil. The data provider Abundance of living adult female Eudorylaimus represented as individuals per kg of dry soil. EU_F_DEAD Abundance of dead adult female Eudorylaimus represented as individuals per kg of dry soil. The data provider Abundance of dead adult female Eudorylaimus represented as individuals per kg of dry soil. EU_J_LIVING Abundance of living juvenile Eudorylaimus represented as individuals per kg of dry soil. The data provider Abundance of living juvenile Eudorylaimus represented as individuals per kg of dry soil. EU_J_DEAD Abundance of dead juvenile Eudorylaimus represented as individuals per kg of dry soil. The data provider Abundance of dead juvenile Eudorylaimus represented as individuals per kg of dry soil. PL_F_LIVING Abundance of living adult female Plectus represented as individuals per kg of dry soil. The data provider Abundance of living adult female Plectus represented as individuals per kg of dry soil. PL_F_DEAD Abundance of dead adult female Plectus represented as individuals per kg of dry soil. The data provider Abundance of dead adult female Plectus represented as individuals per kg of dry soil. PL_J_LIVING Abundance of living juvenile Plectus represented as individuals per kg of dry soil. The data provider Abundance of living juvenile Plectus represented as individuals per kg of dry soil. PL_J_DEAD Abundance of dead juvenile Plectus represented as individuals per kg of dry soil. The data provider Abundance of dead juvenile Plectus represented as individuals per kg of dry soil. ROTIFERS Abundance of rotifers represented as individuals per kg of dry soil. The data provider Abundance of rotifers represented as individuals per kg of dry soil. TARDIGRADES Abundance of tardigrades represented as individuals per kg of dry soil. The data provider Abundance of tardigrades represented as individuals per kg of dry soil. COMMENTS Comments about the sample. The data provider Comments about the sample. McMurdo Dry Valleys LTER The data distributor shall not be liable for innacuracies in the content http 1 0 1 column , https://mcm.lternet.edu/sites/default/files/data/shackleton-adams-inverts-20211008.csv None 2021-10-07 2021-10-07 McMurdo Dry Valleys LTER http://mcmlter.org/ Biological Data Profile of the Content Standards for Digital Geospatial Metadata devised by the Federal Geographic Data Committee. Drupal Ecological information Management Systems, version D7, Biological Data Profile module