USAP-DC

{"dp_type": "Dataset", "free_text": "Genomics"}

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Many animals rely on acclimation to enhance their stress tolerance to face unfavorable conditions. Some animals can also rely on their phenotypic plasticity to respond to these unfavorable conditions without the need to slowly experience increasing levels of stress to enhance their stress tolerance (i.e., acclimate). \r\n\u003cbr/\u003eBelgica antarctica can rely on both types of strategies, but since they evolved to live in a habitat with such dramatic environmental changes as Antarctica, they are very sensitive to any type of stress (e.g., a sudden drop in temperature, or a bout of high-speed wind). Studying the extent to which B. antarctica rely on each of these strategies to survive and how environmental variation can shape this species\u2019 biology across distinct populations (i.e., that might experience distinct selective pressures) is important to help us better understand how polyextremophiles adapt and evolve while inhabiting extreme environments. This project focused on studying stress tolerance in B. antarctica populations of three distinct islands, Torgersen, Cormorant, and Outcast. In addition, we investigated how these responses to stress change between early- and late-summer (i.e., between larvae that recently finished overwintering - here referred as summer larvae, and larvae that are preparing to overwinter - here referred as winter larvae).", "east": -63.964, "geometry": ["POINT(-64.0155 -64.78)"], "keywords": "Antarctica; Belgica Antarctica; Cryosphere; Population Genetics", "locations": "Antarctica", "north": -64.766, "nsf_funding_programs": "Antarctic Organisms and Ecosystems", "persons": "Sousa Lima, Cleverson; Michel, Andrew; Hayward, Scott; Teets, Nicholas", "project_titles": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects", "projects": [{"proj_uid": "p0010203", "repository": "USAP-DC", "title": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -64.794, "title": "Temporal and spatial variation in stress tolerance in Belgica antarctica populations from distinct islands", "uid": "601873", "west": -64.067}, {"awards": "1850988 Teets, Nicholas", "bounds_geometry": ["POLYGON((-64.067 -64.766,-64.05669999999999 -64.766,-64.04639999999999 -64.766,-64.03609999999999 -64.766,-64.02579999999999 -64.766,-64.0155 -64.766,-64.0052 -64.766,-63.994899999999994 -64.766,-63.9846 -64.766,-63.9743 -64.766,-63.964 -64.766,-63.964 -64.7688,-63.964 -64.7716,-63.964 -64.7744,-63.964 -64.77720000000001,-63.964 -64.78,-63.964 -64.7828,-63.964 -64.7856,-63.964 -64.7884,-63.964 -64.7912,-63.964 -64.794,-63.9743 -64.794,-63.9846 -64.794,-63.994899999999994 -64.794,-64.0052 -64.794,-64.0155 -64.794,-64.02579999999999 -64.794,-64.03609999999999 -64.794,-64.04639999999999 -64.794,-64.05669999999999 -64.794,-64.067 -64.794,-64.067 -64.7912,-64.067 -64.7884,-64.067 -64.7856,-64.067 -64.7828,-64.067 -64.78,-64.067 -64.77720000000001,-64.067 -64.7744,-64.067 -64.7716,-64.067 -64.7688,-64.067 -64.766))"], "date_created": "Wed, 12 Mar 2025 00:00:00 GMT", "description": "Insects are known for occurring in any biome due to their outstanding phenotypic plasticity, reproductive ability, and environmental resilience, but only a few species can survive Antarctica\u2019s environmental conditions. The chironomid midge Belgica antarctica is the only insect species endemic to Antarctica, and it has evolved throughout Antarctica\u2019s history and remains active until this day. Recent work has shown that B. antarctica has been isolated from its closest relatives for over 30 million years, which has allowed it to evolve specialized adaptations to thrive in Antarctica\u2019s harsh terrestrial ecosystems. A closely related midge, Eretmoptera murphyi, which is endemic to South Georgia (a sub-Antarctic Island), has invaded Signy Island (a Maritime Antarctica island), and the invasion was facilitated in part by its surprising ability to cope with abiotic stress. Also, the extent of the threat that E. murphyi, as an invasive species, can pose to B. antarctica has been not directly addressed.", "east": -63.964, "geometry": ["POINT(-64.0155 -64.78)"], "keywords": "Antarctica; Belgica Antarctica; Cryosphere", "locations": "Antarctica", "north": -64.766, "nsf_funding_programs": "Antarctic Organisms and Ecosystems", "persons": "Sousa Lima, Cleverson; Aquilino, Monica; Kawarasaki, Yuta; Pavinato, Vitor; Gantz, Josiah D.; Devlin, Jack; Michel, Andrew; Hayward, Scott; Teets, Nicholas", "project_titles": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects", "projects": [{"proj_uid": "p0010203", "repository": "USAP-DC", "title": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -64.794, "title": "Stress tolerance in Belgica antarctica and Eretmoptera murphyi", "uid": "601871", "west": -64.067}, {"awards": "1850988 Teets, Nicholas", "bounds_geometry": ["POINT(-64.0162 -64.7992)"], "date_created": "Sat, 04 Jan 2025 00:00:00 GMT", "description": "This dataset contains survival data for larvae of Belgica antarctica exposed to varying levels of cold, heat, desiccation, and salinity for 24 h. The goal of the experiment was to determine the lethal level for each of these distinct, ecologically relevant stressors.", "east": -64.0162, "geometry": ["POINT(-64.0162 -64.7992)"], "keywords": "Antarctica; Antarctic Peninsula; Cryosphere", "locations": "Antarctica; Antarctic Peninsula; Antarctica", "north": -64.7992, "nsf_funding_programs": "Antarctic Organisms and Ecosystems", "persons": "Teets, Nicholas", "project_titles": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects", "projects": [{"proj_uid": "p0010203", "repository": "USAP-DC", "title": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -64.7992, "title": "Multiple stress tolerance in the Antarctic midge", "uid": "601867", "west": -64.0162}, {"awards": "1850988 Teets, Nicholas", "bounds_geometry": ["POLYGON((-64.074764 -64.771683,-64.06381760000001 -64.771683,-64.0528712 -64.771683,-64.0419248 -64.771683,-64.0309784 -64.771683,-64.020032 -64.771683,-64.0090856 -64.771683,-63.9981392 -64.771683,-63.9871928 -64.771683,-63.9762464 -64.771683,-63.9653 -64.771683,-63.9653 -64.7739047,-63.9653 -64.7761264,-63.9653 -64.77834809999999,-63.9653 -64.7805698,-63.9653 -64.7827915,-63.9653 -64.7850132,-63.9653 -64.78723489999999,-63.9653 -64.7894566,-63.9653 -64.7916783,-63.9653 -64.7939,-63.9762464 -64.7939,-63.9871928 -64.7939,-63.9981392 -64.7939,-64.0090856 -64.7939,-64.020032 -64.7939,-64.0309784 -64.7939,-64.0419248 -64.7939,-64.0528712 -64.7939,-64.06381760000001 -64.7939,-64.074764 -64.7939,-64.074764 -64.7916783,-64.074764 -64.7894566,-64.074764 -64.78723489999999,-64.074764 -64.7850132,-64.074764 -64.7827915,-64.074764 -64.7805698,-64.074764 -64.77834809999999,-64.074764 -64.7761264,-64.074764 -64.7739047,-64.074764 -64.771683))"], "date_created": "Fri, 03 Jan 2025 00:00:00 GMT", "description": "For this study, larvae of Belgica antarctica were exposed to varying concentrations of microplastics in lab conditions. After exposing larvae for 10 days, we measured a variety of physiological outcomes, including survival, metabolic rate, and energy store levels (carbohydrates, lipids, and proteins).", "east": -63.9653, "geometry": ["POINT(-64.020032 -64.7827915)"], "keywords": "Antarctica; Antarctic Peninsula; Cryosphere", "locations": "Antarctic Peninsula; Antarctica", "north": -64.771683, "nsf_funding_programs": "Antarctic Organisms and Ecosystems", "persons": "Teets, Nicholas; Devlin, Jack", "project_titles": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects", "projects": [{"proj_uid": "p0010203", "repository": "USAP-DC", "title": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -64.7939, "title": "Data from microplastics exposure in Belgica antarctica", "uid": "601866", "west": -64.074764}, {"awards": "1850988 Teets, Nicholas", "bounds_geometry": ["POLYGON((-64.067 -64.766,-64.05669999999999 -64.766,-64.04639999999999 -64.766,-64.03609999999999 -64.766,-64.02579999999999 -64.766,-64.0155 -64.766,-64.0052 -64.766,-63.994899999999994 -64.766,-63.9846 -64.766,-63.9743 -64.766,-63.964 -64.766,-63.964 -64.7688,-63.964 -64.7716,-63.964 -64.7744,-63.964 -64.77720000000001,-63.964 -64.78,-63.964 -64.7828,-63.964 -64.7856,-63.964 -64.7884,-63.964 -64.7912,-63.964 -64.794,-63.9743 -64.794,-63.9846 -64.794,-63.994899999999994 -64.794,-64.0052 -64.794,-64.0155 -64.794,-64.02579999999999 -64.794,-64.03609999999999 -64.794,-64.04639999999999 -64.794,-64.05669999999999 -64.794,-64.067 -64.794,-64.067 -64.7912,-64.067 -64.7884,-64.067 -64.7856,-64.067 -64.7828,-64.067 -64.78,-64.067 -64.77720000000001,-64.067 -64.7744,-64.067 -64.7716,-64.067 -64.7688,-64.067 -64.766))"], "date_created": "Fri, 03 Jan 2025 00:00:00 GMT", "description": "B. Antarctica collection site coordinates for NSFGEO-NERC #1850988 - Summer 2023/2024 field season", "east": -63.964, "geometry": ["POINT(-64.0155 -64.78)"], "keywords": "Antarctica; Cryosphere", "locations": "Antarctica", "north": -64.766, "nsf_funding_programs": "Antarctic Organisms and Ecosystems", "persons": "Sousa Lima, Cleverson; Michel, Andrew; Hayward, Scott; Teets, Nicholas", "project_titles": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects", "projects": [{"proj_uid": "p0010203", "repository": "USAP-DC", "title": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -64.794, "title": "Belgica antarctica collection sites - Summer 2023/2024 field season", "uid": "601875", "west": -64.067}, {"awards": "1850988 Teets, Nicholas", "bounds_geometry": ["POLYGON((-64.067 -64.766,-64.05669999999999 -64.766,-64.04639999999999 -64.766,-64.03609999999999 -64.766,-64.02579999999999 -64.766,-64.0155 -64.766,-64.0052 -64.766,-63.994899999999994 -64.766,-63.9846 -64.766,-63.9743 -64.766,-63.964 -64.766,-63.964 -64.7688,-63.964 -64.7716,-63.964 -64.7744,-63.964 -64.77720000000001,-63.964 -64.78,-63.964 -64.7828,-63.964 -64.7856,-63.964 -64.7884,-63.964 -64.7912,-63.964 -64.794,-63.9743 -64.794,-63.9846 -64.794,-63.994899999999994 -64.794,-64.0052 -64.794,-64.0155 -64.794,-64.02579999999999 -64.794,-64.03609999999999 -64.794,-64.04639999999999 -64.794,-64.05669999999999 -64.794,-64.067 -64.794,-64.067 -64.7912,-64.067 -64.7884,-64.067 -64.7856,-64.067 -64.7828,-64.067 -64.78,-64.067 -64.77720000000001,-64.067 -64.7744,-64.067 -64.7716,-64.067 -64.7688,-64.067 -64.766))"], "date_created": "Fri, 03 Jan 2025 00:00:00 GMT", "description": "Protective mechanisms that confer protection to one type of environmental stressor can sometimes confer protection to stressors of different natures, which is a physiological response to stress called Cross-tolerance. Cross-tolerance has been shown in organisms of multiple orders, including Dipterans. Belgica antarctica is an extremely resilient animal and is able to withstand many types of stress that can occur both isolated and at the same time. Recently, it has been demonstrated that brief exposure to a modest level of a stressor can improve their tolerance to severe levels of multiple other stressors. This study had the objective of building on these results and investigate how their response to severe stress changes (either improve or reduce tolerance) to a long-term acclimation to modest level of stressors.", "east": -63.964, "geometry": ["POINT(-64.0155 -64.78)"], "keywords": "Antarctica; Belgica Antarctica; Cryosphere", "locations": "Antarctica", "north": -64.766, "nsf_funding_programs": "Antarctic Organisms and Ecosystems", "persons": "Sousa Lima, Cleverson; Michel, Andrew; Hayward, Scott; Colinet, Herve; Teets, Nicholas", "project_titles": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects", "projects": [{"proj_uid": "p0010203", "repository": "USAP-DC", "title": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -64.794, "title": "Cross-tolerance in Belgica antarctica near Palmer Peninsula", "uid": "601872", "west": -64.067}, {"awards": "1850988 Teets, Nicholas", "bounds_geometry": ["POLYGON((-64.0844 -64.7651,-64.07249 -64.7651,-64.06058 -64.7651,-64.04867 -64.7651,-64.03676 -64.7651,-64.02485 -64.7651,-64.01294 -64.7651,-64.00103 -64.7651,-63.98912 -64.7651,-63.97721 -64.7651,-63.9653 -64.7651,-63.9653 -64.76798000000001,-63.9653 -64.77086,-63.9653 -64.77374,-63.9653 -64.77662,-63.9653 -64.7795,-63.9653 -64.78238,-63.9653 -64.78526,-63.9653 -64.78814,-63.9653 -64.79101999999999,-63.9653 -64.7939,-63.97721 -64.7939,-63.98912 -64.7939,-64.00103 -64.7939,-64.01294 -64.7939,-64.02485 -64.7939,-64.03676 -64.7939,-64.04867 -64.7939,-64.06058 -64.7939,-64.07249 -64.7939,-64.0844 -64.7939,-64.0844 -64.79101999999999,-64.0844 -64.78814,-64.0844 -64.78526,-64.0844 -64.78238,-64.0844 -64.7795,-64.0844 -64.77662,-64.0844 -64.77374,-64.0844 -64.77086,-64.0844 -64.76798000000001,-64.0844 -64.7651))"], "date_created": "Fri, 03 Jan 2025 00:00:00 GMT", "description": "For this study, larvae were collected every week for the entire summer field season from five sites, four located on Cormorant Island and a fifth site on Humble Island. The dataset contains microhabitat data for each site, as well as the metabolic rate, carbohydrate content, lipid content, and protein content of the larvae collected at those sites for each time point.", "east": -63.9653, "geometry": ["POINT(-64.02485 -64.7795)"], "keywords": "Antarctica; Antarctic Peninsula; Cryosphere; Seasonality", "locations": "Antarctica; Antarctic Peninsula", "north": -64.7651, "nsf_funding_programs": "Antarctic Organisms and Ecosystems", "persons": "Teets, Nicholas; Spacht, Drew; Gantz, Josiah D.; Devlin, Jack; McCabe, Eleanor; Lee, Richard; Denlinger, David", "project_titles": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects", "projects": [{"proj_uid": "p0010203", "repository": "USAP-DC", "title": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -64.7939, "title": "Fine\u2011scale variation in microhabitat conditions influences physiology and metabolism in an Antarctic insect", "uid": "601865", "west": -64.0844}, {"awards": "1850988 Teets, Nicholas", "bounds_geometry": ["POLYGON((-65.6867 -64.7256,-65.52717 -64.7256,-65.36764 -64.7256,-65.20811 -64.7256,-65.04858 -64.7256,-64.88905 -64.7256,-64.72952 -64.7256,-64.56998999999999 -64.7256,-64.41046 -64.7256,-64.25093 -64.7256,-64.0914 -64.7256,-64.0914 -64.86576,-64.0914 -65.00592,-64.0914 -65.14608,-64.0914 -65.28624,-64.0914 -65.4264,-64.0914 -65.56656,-64.0914 -65.70672,-64.0914 -65.84688,-64.0914 -65.98704000000001,-64.0914 -66.1272,-64.25093 -66.1272,-64.41046 -66.1272,-64.56998999999999 -66.1272,-64.72952 -66.1272,-64.88905 -66.1272,-65.04858 -66.1272,-65.20811 -66.1272,-65.36764 -66.1272,-65.52717 -66.1272,-65.6867 -66.1272,-65.6867 -65.98704000000001,-65.6867 -65.84688,-65.6867 -65.70672,-65.6867 -65.56656,-65.6867 -65.4264,-65.6867 -65.28624,-65.6867 -65.14608,-65.6867 -65.00592,-65.6867 -64.86576,-65.6867 -64.7256))"], "date_created": "Mon, 16 Dec 2024 00:00:00 GMT", "description": "In this study, we measured cold and dehydration tolerance of larvae of Belgica antarctica from three distinct geographic locations along the Antarctic Peninsula. Larvae were collected from Cape Rasmussen, Cape Evensen, and Dream Island, after which they were returned to the US for experiments. For cold tolerance, larvae were exposed to -14 or -15\u00b0C for 24 h, and survival was assessed 24 later. For dehydration tolerance, larvae were exposed to 75% RH for 72 h, and survival was checked after 24 h of rehydration. The dataset reports the numbers of live and dead larvae from each island and experimental conditions. Larvae were tested in groups of 10.", "east": -64.0914, "geometry": ["POINT(-64.88905 -65.4264)"], "keywords": "Antarctica; Antarctic Peninsula; Cryosphere", "locations": "Antarctic Peninsula; Antarctica", "north": -64.7256, "nsf_funding_programs": "Antarctic Organisms and Ecosystems", "persons": "Teets, Nicholas; Kawarasaki, Yuta", "project_titles": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects", "projects": [{"proj_uid": "p0010203", "repository": "USAP-DC", "title": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -66.1272, "title": "Cold and dehydration tolerance of Belgica antarctica from three distinct geographic locations", "uid": "601864", "west": -65.6867}, {"awards": "1850988 Teets, Nicholas", "bounds_geometry": ["POLYGON((-64.366767 -62.68104,-63.9917003 -62.68104,-63.6166336 -62.68104,-63.241566899999995 -62.68104,-62.8665002 -62.68104,-62.4914335 -62.68104,-62.1163668 -62.68104,-61.741300100000004 -62.68104,-61.3662334 -62.68104,-60.9911667 -62.68104,-60.6161 -62.68104,-60.6161 -62.953703700000005,-60.6161 -63.2263674,-60.6161 -63.4990311,-60.6161 -63.771694800000006,-60.6161 -64.0443585,-60.6161 -64.31702220000001,-60.6161 -64.5896859,-60.6161 -64.8623496,-60.6161 -65.13501330000001,-60.6161 -65.407677,-60.9911667 -65.407677,-61.3662334 -65.407677,-61.741300100000004 -65.407677,-62.1163668 -65.407677,-62.4914335 -65.407677,-62.8665002 -65.407677,-63.241566899999995 -65.407677,-63.6166336 -65.407677,-63.9917003 -65.407677,-64.366767 -65.407677,-64.366767 -65.13501330000001,-64.366767 -64.8623496,-64.366767 -64.5896859,-64.366767 -64.31702220000001,-64.366767 -64.0443585,-64.366767 -63.771694800000006,-64.366767 -63.4990311,-64.366767 -63.2263674,-64.366767 -62.953703700000005,-64.366767 -62.68104))"], "date_created": "Thu, 22 Jun 2023 00:00:00 GMT", "description": "This study examines how energy reserves and gene expression change between Belgica antarctica larvae that did and did not go through a freezing and recovery event (frozen and control). The midges were exposed to -5C for 24h and recovered for 15 days. Samples were taken immediately after thaw, 1, 3, 7, and 15 days of recovery for biochemical assays and RNA-sequencing, \r\n\r\nDataset \"survival\" shows survival rate between frozen and control\r\nDatasets \"carb results\", \"lipid results\", and \"protein results\" show changes in energy reserves between frozen and control\r\nDataset \"KEGG results\" show pathways elicited by differential gene expression between frozen and control", "east": -60.6161, "geometry": ["POINT(-62.4914335 -64.0443585)"], "keywords": "Antarctica; Belgica Antarctica; Palmer Station", "locations": "Palmer Station; Antarctica", "north": -62.68104, "nsf_funding_programs": "Antarctic Organisms and Ecosystems", "persons": "Lecheta, Melise; Devlin, Jack; Teets, Nicholas; Sousa Lima, Cleverson", "project_titles": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects", "projects": [{"proj_uid": "p0010203", "repository": "USAP-DC", "title": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -65.407677, "title": "Long-term recovery from freezing in Belgica antarctica", "uid": "601698", "west": -64.366767}, {"awards": "1850988 Teets, Nicholas", "bounds_geometry": ["POLYGON((-64.366767 -62.68104,-63.991703599999994 -62.68104,-63.6166402 -62.68104,-63.2415768 -62.68104,-62.866513399999995 -62.68104,-62.49145 -62.68104,-62.1163866 -62.68104,-61.7413232 -62.68104,-61.366259799999995 -62.68104,-60.9911964 -62.68104,-60.616133 -62.68104,-60.616133 -62.953703700000005,-60.616133 -63.2263674,-60.616133 -63.4990311,-60.616133 -63.771694800000006,-60.616133 -64.0443585,-60.616133 -64.31702220000001,-60.616133 -64.5896859,-60.616133 -64.8623496,-60.616133 -65.13501330000001,-60.616133 -65.407677,-60.9911964 -65.407677,-61.366259799999995 -65.407677,-61.7413232 -65.407677,-62.1163866 -65.407677,-62.49145 -65.407677,-62.866513399999995 -65.407677,-63.2415768 -65.407677,-63.6166402 -65.407677,-63.991703599999994 -65.407677,-64.366767 -65.407677,-64.366767 -65.13501330000001,-64.366767 -64.8623496,-64.366767 -64.5896859,-64.366767 -64.31702220000001,-64.366767 -64.0443585,-64.366767 -63.771694800000006,-64.366767 -63.4990311,-64.366767 -63.2263674,-64.366767 -62.953703700000005,-64.366767 -62.68104))"], "date_created": "Tue, 09 May 2023 00:00:00 GMT", "description": "The file associated with this submission contains information about the collection of Belgica antarctica individuals realized during the 2022/2023 Antarctica summer season. Each entry on the table describes the collection locations, how many sites are within each location, how many individuals were collected in each site, the collection dates, the life stage, and the species.", "east": -60.616133, "geometry": ["POINT(-62.49145 -64.0443585)"], "keywords": "Antarctica; Antarctic Peninsula; Belgica Antarctica; Biota; Sample Location", "locations": "Antarctic Peninsula; Antarctica", "north": -62.68104, "nsf_funding_programs": "Antarctic Organisms and Ecosystems", "persons": "Pavinato, Vitor; Gantz, Joseph; Kawarasaki, Yuta; Devlin, Jack; Teets, Nicholas; Michel, Andrew; Peter, Convey; Sousa Lima, Cleverson", "project_titles": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects", "projects": [{"proj_uid": "p0010203", "repository": "USAP-DC", "title": "NSFGEO-NERC: Mechanisms of Adaptation to Terrestrial Antarctica through Comparative Physiology and Genomics of Antarctic and sub-Antarctic Insects"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -65.407677, "title": "Information on 2023 collection sites for Belgica antarctica", "uid": "601687", "west": -64.366767}, {"awards": "0732917 McCormick, Michael", "bounds_geometry": ["POLYGON((299.4 -63.1,299.92 -63.1,300.44 -63.1,300.96 -63.1,301.48 -63.1,302 -63.1,302.52 -63.1,303.04 -63.1,303.56 -63.1,304.08 -63.1,304.6 -63.1,304.6 -63.29,304.6 -63.48,304.6 -63.67,304.6 -63.86,304.6 -64.05,304.6 -64.24,304.6 -64.43,304.6 -64.62,304.6 -64.81,304.6 -65,304.08 -65,303.56 -65,303.04 -65,302.52 -65,302 -65,301.48 -65,300.96 -65,300.44 -65,299.92 -65,299.4 -65,299.4 -64.81,299.4 -64.62,299.4 -64.43,299.4 -64.24,299.4 -64.05,299.4 -63.86,299.4 -63.67,299.4 -63.48,299.4 -63.29,299.4 -63.1))"], "date_created": "Sun, 17 Dec 2017 00:00:00 GMT", "description": "Ice-shelf loss along the east coast of the Antarctic Peninsula over recent decades has brought new sources of carbon and energy to the marine benthos likely affecting sediment geochemistry and microbial community composition. To better understand the long-term effects of ice-shelf loss on benthic microbial communities, we conducted a five-station survey along a 160 km transect following the historic path of retreat of the Larsen A ice shelf. All microbial community sequence data is publicly available through the Metagenomics Analysis Server at Argonne National Laboratory (MG-RAST). The project title is \"Impact of ice-shelf loss on geochemical profiles and microbial community composition in marine sediments of the Larsen A embayment, Antarctic Peninsula\". A key word search using terms from this title at the MG-RAST portal (http://metagenomics.anl.gov/) will return the complete sample list. This submitted dataset summarizes the measured environmental parameters for these same samples (lat., long., water depth, sediment depth, pH, alkalinity, dissolved oxygen, silicate, phosphate, nitrate, nitrite, and ammonium).", "east": 304.6, "geometry": ["POINT(-58 -64.05)"], "keywords": "Antarctica; Antarctic Peninsula; Chemistry:ice; Chemistry:Ice; Geochemistry; Glaciers/ice Sheet; Glaciers/Ice Sheet; Glaciology; Ice Core Records; LARISSA; Microbiology", "locations": "Antarctic Peninsula; Antarctica", "north": -63.1, "nsf_funding_programs": "Antarctic Integrated System Science", "persons": "McCormick, Michael", "project_titles": "Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach - Marine Ecosystems.", "projects": [{"proj_uid": "p0010135", "repository": "USAP-DC", "title": "Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach - Marine Ecosystems."}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -65.0, "title": "LARISSA: Impact of ice-shelf loss on geochemical profiles and microbial community composition in marine sediments of the Larsen A embayment, Antarctic Peninsula", "uid": "601073", "west": 299.4}, {"awards": "0739783 Junge, Karen", "bounds_geometry": ["POLYGON((-180 -60,-144 -60,-108 -60,-72 -60,-36 -60,0 -60,36 -60,72 -60,108 -60,144 -60,180 -60,180 -63,180 -66,180 -69,180 -72,180 -75,180 -78,180 -81,180 -84,180 -87,180 -90,144 -90,108 -90,72 -90,36 -90,0 -90,-36 -90,-72 -90,-108 -90,-144 -90,-180 -90,-180 -87,-180 -84,-180 -81,-180 -78,-180 -75,-180 -72,-180 -69,-180 -66,-180 -63,-180 -60))"], "date_created": "Tue, 01 Jan 2013 00:00:00 GMT", "description": "The mechanisms enabling bacteria to be metabolically active at very low temperatures are of considerable importance to polar microbial ecology, astrobiology, climate and cryopreservation. This research program has two main objectives. The first is to investigate metabolic activities and gene expression of polar marine psychrophilic bacteria when confronted with freezing conditions at temperatures above the eutectic of seawater (\u003c54C) to unveil cold adaptation mechanisms with relevance to wintertime sea-ice ecology. The second objective is to discern if psychrophilic processes of leucine incorporation into proteins, shown to occur to -196C, amount to metabolic activity providing for the survival of cells or are merely biochemical reactions still possible in flash-frozen samples without any effect on survival. We will examine extracellular and intracellular processes of psychrophilic activity above and below the eutectic by (i) determining the temperature range of metabolic activities such as DNA synthesis, carbon utilization, respiration and ATP generation using radioactive tracer technology, including a control at liquid helium temperature (-268.9C), (ii) analyzing gene expression in ice using whole genome and microarray analyses and iii) examining the role of exopolymeric substances (EPS) and ice micro-physics for the observed activity using an in-situ microscopy technique. Results of the proposed research can be expected to aid in the determination of cellular and genetic strategies that allow cells to maintain activity at extremely low temperatures within an icy matrix and/or to resume activity again when more growth-permissive conditions are encountered. The research is an interdisciplinary collaboration involving three different institutions with participants in Oceanography, Genomics, and Geophysical Sciences. The proposed activity will support the beginning professional career of a female researcher and will serve as the basis for several undergraduate student laboratory projects.", "east": 180.0, "geometry": ["POINT(0 -89.999)"], "keywords": "Antarctica; Biota; Microbiology; Oceans; Sea Ice; Southern Ocean", "locations": "Southern Ocean; Antarctica", "north": -60.0, "nsf_funding_programs": null, "persons": "Junge, Karen", "project_titles": "Metabolic Activities and Gene Expression of Marine Psychrophiles in Cold Ice", "projects": [{"proj_uid": "p0000673", "repository": "USAP-DC", "title": "Metabolic Activities and Gene Expression of Marine Psychrophiles in Cold Ice"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -90.0, "title": "Metabolic Activities and Gene Expression of Marine Psychrophiles in Cold Ice", "uid": "600083", "west": -180.0}, {"awards": "0632389 Murray, Alison", "bounds_geometry": ["POLYGON((-65.3827 -64.4213,-65.13333 -64.4213,-64.88396 -64.4213,-64.63459 -64.4213,-64.38522 -64.4213,-64.13585 -64.4213,-63.88648 -64.4213,-63.63711 -64.4213,-63.38774 -64.4213,-63.13837 -64.4213,-62.889 -64.4213,-62.889 -64.47176,-62.889 -64.52222,-62.889 -64.57268,-62.889 -64.62314,-62.889 -64.6736,-62.889 -64.72406,-62.889 -64.77452,-62.889 -64.82498,-62.889 -64.87544,-62.889 -64.9259,-63.13837 -64.9259,-63.38774 -64.9259,-63.63711 -64.9259,-63.88648 -64.9259,-64.13585 -64.9259,-64.38522 -64.9259,-64.63459 -64.9259,-64.88396 -64.9259,-65.13333 -64.9259,-65.3827 -64.9259,-65.3827 -64.87544,-65.3827 -64.82498,-65.3827 -64.77452,-65.3827 -64.72406,-65.3827 -64.6736,-65.3827 -64.62314,-65.3827 -64.57268,-65.3827 -64.52222,-65.3827 -64.47176,-65.3827 -64.4213))"], "date_created": "Sat, 01 Jan 2011 00:00:00 GMT", "description": "The Western Antarctic Peninsula is experiencing one of the most rapid rates of climate warming on Earth, with an increase of 5degrees C in the mean winter temperature in 50 years. Impacts on upper trophic levels are evident, though there have been few, if any studies that have considered the impacts on bacterioplankton in the Southern Ocean. This proposal will characterize the winter bacterioplankton genome, transcriptome, and proteome and discover those features (community composition, genes up-regulated, and proteins expressed) that are essential to winter bacterioplankton survival and livelihood. We have assembled a polar ocean ecology and genomics network including strategic partnerships with Palmer LTER, the British Antarctic Survey\u0027s ocean metagenome program, US and Canadian scientists studying the Arctic Ocean genome, an Australian colleague who specialized in archaeal proteomics, and French colleagues studying Sub-Antarctic and Coastal Adelie Land marine bacterioplankton. The primary objectives of this program are: 1 Describe the differences in diversity and genomic content between austral winter and summer bacterioplankton communities. 2. Investigate the winter-time bacterioplankton growth and cellular signals (mRNA and proteins expressed) in order to understand the specific adaptations key to survival. Our results will extend from the Antarctic to the Arctic - as the cold, dark, carbon-limited deep seas linking these two systems have many common features. Education and outreach activities target (i) undergraduate and graduate students, hopefully including minority students recruited through the Diversity in Research in Environmental and Marine Sciences (DREAMS) Program at VIMS; (ii) a broad audience with our education and outreach partnerships with The Cousteau Society and with the Census for Antarctic Marine Life program. Data and links to external databases will be listed on the http://genex2.dri.edu website. Sequence data will be publicly accessible in GenBank and IMG-M databases.", "east": -62.889, "geometry": ["POINT(-64.13585 -64.6736)"], "keywords": "Antarctica; Antarctic Peninsula; Biota; Chemistry:fluid; Chemistry:Fluid; Oceans; Southern Ocean", "locations": "Antarctica; Southern Ocean; Antarctic Peninsula", "north": -64.4213, "nsf_funding_programs": null, "persons": "Grzymski, Joseph; Murray, Alison", "project_titles": "IPY: Bacterioplankton Genomic Adaptations to Antarctic Winter", "projects": [{"proj_uid": "p0000091", "repository": "USAP-DC", "title": "IPY: Bacterioplankton Genomic Adaptations to Antarctic Winter"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -64.9259, "title": "IPY: Bacterioplankton Genomic Adaptations to Antarctic Winter", "uid": "600061", "west": -65.3827}, {"awards": "0808947 Hofmann, Gretchen", "bounds_geometry": ["POLYGON((-160 -70,-159 -70,-158 -70,-157 -70,-156 -70,-155 -70,-154 -70,-153 -70,-152 -70,-151 -70,-150 -70,-150 -70.7,-150 -71.4,-150 -72.1,-150 -72.8,-150 -73.5,-150 -74.2,-150 -74.9,-150 -75.6,-150 -76.3,-150 -77,-151 -77,-152 -77,-153 -77,-154 -77,-155 -77,-156 -77,-157 -77,-158 -77,-159 -77,-160 -77,-160 -76.3,-160 -75.6,-160 -74.9,-160 -74.2,-160 -73.5,-160 -72.8,-160 -72.1,-160 -71.4,-160 -70.7,-160 -70))"], "date_created": "Fri, 01 Jan 2010 00:00:00 GMT", "description": "This Small Grant for Exploratory Research (SGER) will support the rapid acquisition of DNA sequence for the Antarctic pteropod Limacina helicina, a resource that would allow the development of a cDNA microarray to profile gene expression in this critical marine invertebrate in response to ocean acidification. This request would facilitate the collaboration of the PI (Hofmann), a marine molecular ecologist, with co-PI, Prof. Victoria Fabry, an expert in pteropod calcification biology, and a leader in the ocean acidification research community. Finally, the resources developed here would be shared with the polar research community and all DNA sequence data and protocols would be available via web databases. Notably, the genomic tool developed here would most likely be useful for pteropods from Antarctic and Arctic waters. The broader impacts of this project would be the development of genomic tools for a critical Antarctic marine invertebrate that is threatened by ocean acidification. In addition, these resources would be shared with the polar biology research community.", "east": -150.0, "geometry": ["POINT(-155 -73.5)"], "keywords": "Biota; Genomics; Oceans; Southern Ocean", "locations": "Southern Ocean", "north": -70.0, "nsf_funding_programs": null, "persons": "Fabry, Victoria; Hofmann, Gretchen", "project_titles": "Science of Opportunity: A SGER proposal to support the development of genomic resources for Antarctic pteropods", "projects": [{"proj_uid": "p0000213", "repository": "USAP-DC", "title": "Science of Opportunity: A SGER proposal to support the development of genomic resources for Antarctic pteropods"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -77.0, "title": "Science of Opportunity: A SGER proposal to support the development of genomic resources for Antarctic pteropods", "uid": "600088", "west": -160.0}]

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