USAP-DC

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

[{"awards": "1341742 Eppley, Sarah; 1932844 Eppley, Sarah", "bounds_geometry": ["POLYGON((-63.83 -60.9,-62.93 -60.9,-62.03 -60.9,-61.129999999999995 -60.9,-60.23 -60.9,-59.33 -60.9,-58.43 -60.9,-57.53 -60.9,-56.629999999999995 -60.9,-55.73 -60.9,-54.83 -60.9,-54.83 -61.16,-54.83 -61.42,-54.83 -61.68,-54.83 -61.94,-54.83 -62.2,-54.83 -62.46,-54.83 -62.72,-54.83 -62.98,-54.83 -63.24,-54.83 -63.5,-55.73 -63.5,-56.629999999999995 -63.5,-57.53 -63.5,-58.43 -63.5,-59.33 -63.5,-60.23 -63.5,-61.129999999999995 -63.5,-62.03 -63.5,-62.93 -63.5,-63.83 -63.5,-63.83 -63.24,-63.83 -62.98,-63.83 -62.72,-63.83 -62.46,-63.83 -62.2,-63.83 -61.94,-63.83 -61.68,-63.83 -61.42,-63.83 -61.16,-63.83 -60.9))"], "date_created": "Wed, 01 Apr 2026 00:00:00 GMT", "description": "This study was conducted on King George Island (KGI), the largest island of the South Shetland archipelago, characterized by maritime Antarctic conditions and extensive coastal ice-free areas. In 2016, three moss species were sampled to evaluate several morphological traits.", "east": -54.83, "geometry": ["POINT(-59.33 -62.2)"], "keywords": "Antarctica; Biota; Cryosphere; Plants; South Shetland Islands", "locations": "Antarctica; South Shetland Islands; South Shetland Islands", "north": -60.9, "nsf_funding_programs": "Antarctic Organisms and Ecosystems; Antarctic Organisms and Ecosystems", "persons": "Eppley, Sarah", "project_titles": "Collaborative Research: Exploring the Functional Role of Antarctic Plants during Terrestrial Succession; The Functional role of Moss in structuring Biotic interactions, and Terrestrialization of Antarctica", "projects": [{"proj_uid": "p0010518", "repository": "USAP-DC", "title": "The Functional role of Moss in structuring Biotic interactions, and Terrestrialization of Antarctica"}, {"proj_uid": "p0010315", "repository": "USAP-DC", "title": "Collaborative Research: Exploring the Functional Role of Antarctic Plants during Terrestrial Succession"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -63.5, "title": "Morphological Traits of Antarctic Moses", "uid": "602037", "west": -63.83}, {"awards": "1341742 Eppley, Sarah; 1932844 Eppley, Sarah", "bounds_geometry": ["POLYGON((-63.5 -60.9,-62.633 -60.9,-61.766 -60.9,-60.899 -60.9,-60.032 -60.9,-59.165 -60.9,-58.298 -60.9,-57.431 -60.9,-56.564 -60.9,-55.696999999999996 -60.9,-54.83 -60.9,-54.83 -61.16,-54.83 -61.42,-54.83 -61.68,-54.83 -61.94,-54.83 -62.2,-54.83 -62.46,-54.83 -62.72,-54.83 -62.98,-54.83 -63.24,-54.83 -63.5,-55.696999999999996 -63.5,-56.564 -63.5,-57.431 -63.5,-58.298 -63.5,-59.165 -63.5,-60.032 -63.5,-60.899 -63.5,-61.766 -63.5,-62.633 -63.5,-63.5 -63.5,-63.5 -63.24,-63.5 -62.98,-63.5 -62.72,-63.5 -62.46,-63.5 -62.2,-63.5 -61.94,-63.5 -61.68,-63.5 -61.42,-63.5 -61.16,-63.5 -60.9))"], "date_created": "Wed, 01 Apr 2026 00:00:00 GMT", "description": "This study was conducted on King George Island (KGI), the largest island of the South Shetland archipelago, characterized by maritime Antarctic conditions and extensive coastal ice-free areas. In 2016, five moss species (Andreaea gainii, Chorisodontium aciphyllum, Polytrichastrum alpinum, Sanionia georgiouncinata, and Syntrichia saxicola) were sampled to evaluate interspecific variation in thermal traits.", "east": -54.83, "geometry": ["POINT(-59.165 -62.2)"], "keywords": "Antarctica; Biota; Cryosphere; Plants; South Shetland Islands", "locations": "Antarctica; South Shetland Islands", "north": -60.9, "nsf_funding_programs": "Antarctic Organisms and Ecosystems; Antarctic Organisms and Ecosystems", "persons": "Eppley, Sarah", "project_titles": "Collaborative Research: Exploring the Functional Role of Antarctic Plants during Terrestrial Succession; The Functional role of Moss in structuring Biotic interactions, and Terrestrialization of Antarctica", "projects": [{"proj_uid": "p0010315", "repository": "USAP-DC", "title": "Collaborative Research: Exploring the Functional Role of Antarctic Plants during Terrestrial Succession"}, {"proj_uid": "p0010518", "repository": "USAP-DC", "title": "The Functional role of Moss in structuring Biotic interactions, and Terrestrialization of Antarctica"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -63.5, "title": "Plant Thermal Traits", "uid": "602038", "west": -63.5}, {"awards": "1341742 Eppley, Sarah; 1932844 Eppley, Sarah", "bounds_geometry": ["POLYGON((-63.83 -60.9,-62.93 -60.9,-62.03 -60.9,-61.129999999999995 -60.9,-60.23 -60.9,-59.33 -60.9,-58.43 -60.9,-57.53 -60.9,-56.629999999999995 -60.9,-55.73 -60.9,-54.83 -60.9,-54.83 -61.16,-54.83 -61.42,-54.83 -61.68,-54.83 -61.94,-54.83 -62.2,-54.83 -62.46,-54.83 -62.72,-54.83 -62.98,-54.83 -63.24,-54.83 -63.5,-55.73 -63.5,-56.629999999999995 -63.5,-57.53 -63.5,-58.43 -63.5,-59.33 -63.5,-60.23 -63.5,-61.129999999999995 -63.5,-62.03 -63.5,-62.93 -63.5,-63.83 -63.5,-63.83 -63.24,-63.83 -62.98,-63.83 -62.72,-63.83 -62.46,-63.83 -62.2,-63.83 -61.94,-63.83 -61.68,-63.83 -61.42,-63.83 -61.16,-63.83 -60.9))"], "date_created": "Wed, 01 Apr 2026 00:00:00 GMT", "description": "This study was conducted on King George Island (KGI). In 2016, three moss species (Chorisodontium aciphyllum, Polytrichastrum alpinum, and Sanionia georgiouncinata) were sampled to evaluate nitrogen concentration in plant tissue across a gradient on Ardley Island. Nitrogen concentrations were found to differ in plant tissues across the island.", "east": -54.83, "geometry": ["POINT(-59.33 -62.2)"], "keywords": "Antarctica; Biota; Cryosphere; Plants; South Shetland Islands", "locations": "South Shetland Islands; Antarctica", "north": -60.9, "nsf_funding_programs": "Antarctic Organisms and Ecosystems; Antarctic Organisms and Ecosystems", "persons": "Eppley, Sarah", "project_titles": "Collaborative Research: Exploring the Functional Role of Antarctic Plants during Terrestrial Succession; The Functional role of Moss in structuring Biotic interactions, and Terrestrialization of Antarctica", "projects": [{"proj_uid": "p0010518", "repository": "USAP-DC", "title": "The Functional role of Moss in structuring Biotic interactions, and Terrestrialization of Antarctica"}, {"proj_uid": "p0010315", "repository": "USAP-DC", "title": "Collaborative Research: Exploring the Functional Role of Antarctic Plants during Terrestrial Succession"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -63.5, "title": "Plant Nitrogen", "uid": "602039", "west": -63.83}, {"awards": "1745082 Beilman, David", "bounds_geometry": null, "date_created": "Tue, 31 Mar 2026 00:00:00 GMT", "description": "Elemental concentrations of carbon and nitrogen from moss bank profiles collected during summer 2020.", "east": null, "geometry": null, "keywords": "Antarctica; Cryosphere", "locations": "Antarctica", "north": null, "nsf_funding_programs": "Antarctic Earth Sciences", "persons": "Beilman, David", "project_titles": "Collaborative Research: Reconstructing Late Holocene Ecosystem and Climate Shifts from Peat Records in the Western Antarctic Peninsula", "projects": [{"proj_uid": "p0010337", "repository": "USAP-DC", "title": "Collaborative Research: Reconstructing Late Holocene Ecosystem and Climate Shifts from Peat Records in the Western Antarctic Peninsula"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": null, "title": "Moss bank elemental carbon and nitrogen data", "uid": "602042", "west": null}, {"awards": "1745082 Beilman, David", "bounds_geometry": null, "date_created": "Mon, 30 Mar 2026 00:00:00 GMT", "description": "Radiocarbon and stable carbon isotope measurements of black moss samples collected from the Antarctic Peninsula region during summer 2020.", "east": null, "geometry": null, "keywords": "Antarctica; Antarctic Peninsula; Cryosphere", "locations": "Antarctic Peninsula; Antarctica", "north": null, "nsf_funding_programs": "Antarctic Earth Sciences", "persons": "Beilman, David; Groff, Dulcinea", "project_titles": "Collaborative Research: Reconstructing Late Holocene Ecosystem and Climate Shifts from Peat Records in the Western Antarctic Peninsula", "projects": [{"proj_uid": "p0010337", "repository": "USAP-DC", "title": "Collaborative Research: Reconstructing Late Holocene Ecosystem and Climate Shifts from Peat Records in the Western Antarctic Peninsula"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": null, "title": "Antarctic Peninsula moss kill dates", "uid": "602040", "west": null}, {"awards": "1932876 Ball, Becky", "bounds_geometry": ["POLYGON((-58.999374 -62.18186,-58.965558 -62.18186,-58.931742 -62.18186,-58.897926000000005 -62.18186,-58.864110000000004 -62.18186,-58.830294 -62.18186,-58.796478 -62.18186,-58.762662 -62.18186,-58.728846000000004 -62.18186,-58.69503 -62.18186,-58.661214 -62.18186,-58.661214 -62.1881765,-58.661214 -62.194493,-58.661214 -62.2008095,-58.661214 -62.207126,-58.661214 -62.2134425,-58.661214 -62.219758999999996,-58.661214 -62.2260755,-58.661214 -62.232392,-58.661214 -62.2387085,-58.661214 -62.245025,-58.69503 -62.245025,-58.728846000000004 -62.245025,-58.762662 -62.245025,-58.796478 -62.245025,-58.830294 -62.245025,-58.864110000000004 -62.245025,-58.897926000000005 -62.245025,-58.931742 -62.245025,-58.965558 -62.245025,-58.999374 -62.245025,-58.999374 -62.2387085,-58.999374 -62.232392,-58.999374 -62.2260755,-58.999374 -62.219758999999996,-58.999374 -62.2134425,-58.999374 -62.207126,-58.999374 -62.2008095,-58.999374 -62.194493,-58.999374 -62.1881765,-58.999374 -62.18186))"], "date_created": "Tue, 20 Jan 2026 00:00:00 GMT", "description": "A consequence of rapid warming on the Antarctic Peninsula is the melting and subsequent retreat of glaciers, leading to an increase in newly-exposed land on the Peninsula that was previously covered with ice. The process of ecological succession on this new terrain begins, but the mechanisms by which they occur on the Antarctic continent is not well understood. Once early colonizing plants have established on the newly-exposed soil, they can change many important properties, such as water dynamics, nutrient recycling, soil development, and habitat for microscopic organisms, which will ultimately determine the structure and functioning of the future ecosystem as it develops. This project makes a comprehensive study of how the type of colonizing plant, and the expansion of those plants from climate change, will influence terrestrial ecosystems in Antarctica. This project uses surveys across succession sites on King George Island to test how species-specific plant functional traits impact soil properties and associated microbial and invertebrate communities in a greening Antarctica. We measured the relative effects of fundamental plant functional traits on soil physicochemical and biological (both microbial and invertebrate) properties across glacial succession gradients in Antarctica. In doing so, we explore how early-colonizing plants, especially mosses and lichens, alter soil physical, biogeochemical, and biological components.", "east": -58.661214, "geometry": ["POINT(-58.830294 -62.2134425)"], "keywords": "25 De Mayo/King George Island; Antarctica; Biota; Cryosphere; Ecological Succession; Microarthropods; Soil Biogeochemistry; Soil Invertebrates; Soil Microbiome", "locations": "Antarctica; 25 De Mayo/King George Island", "north": -62.18186, "nsf_funding_programs": "Antarctic Organisms and Ecosystems", "persons": "Ball, Becky", "project_titles": "Collaborative Research: Exploring the Functional Role of Antarctic Plants during Terrestrial Succession", "projects": [{"proj_uid": "p0010315", "repository": "USAP-DC", "title": "Collaborative Research: Exploring the Functional Role of Antarctic Plants during Terrestrial Succession"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -62.245025, "title": "Exploring the Functional Role of Antarctic Plants during Terrestrial Succession: Fine-Scale Survey", "uid": "602015", "west": -58.999374}, {"awards": "1850988 Teets, Nicholas", "bounds_geometry": ["POLYGON((-64.366767 -62.681,-63.991703599999994 -62.681,-63.6166402 -62.681,-63.2415768 -62.681,-62.866513399999995 -62.681,-62.49145 -62.681,-62.1163866 -62.681,-61.7413232 -62.681,-61.366259799999995 -62.681,-60.9911964 -62.681,-60.616133 -62.681,-60.616133 -62.9536677,-60.616133 -63.226335399999996,-60.616133 -63.4990031,-60.616133 -63.7716708,-60.616133 -64.04433850000001,-60.616133 -64.31700620000001,-60.616133 -64.58967390000001,-60.616133 -64.86234160000001,-60.616133 -65.13500930000001,-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 -65.13500930000001,-64.366767 -64.86234160000001,-64.366767 -64.58967390000001,-64.366767 -64.31700620000001,-64.366767 -64.04433850000001,-64.366767 -63.7716708,-64.366767 -63.4990031,-64.366767 -63.226335399999996,-64.366767 -62.9536677,-64.366767 -62.681))"], "date_created": "Sun, 11 Jun 2023 00:00:00 GMT", "description": "Antarctic winters are challenging for terrestrial invertebrates, and species that\r\nlive there have specialised adaptations to conserve energy and protect against\r\ncold injury in the winter. However, rapidly occurring climate change in these\r\nregions will increase the unpredictability of winter conditions, and there is\r\ncurrently a dearth of knowledge on how the highly adapted invertebrates of\r\nAntarctica will respond to changes in winter temperatures.\r\n2. We evaluated the response of larvae of the Antarctic midge, Belgica antarctica,\r\nto simulated winters at three ecologically relevant mean temperature scenarios:\r\nwarm (\u22121\u00b0C), normal (\u22123\u00b0C) and cold (\u22125\u00b0C). Within each scenario, larvae were\r\nplaced into three distinct habitat types in which they are commonly observed\r\n(decaying organic matter, living moss, and Prasiola crispa algae). Following the\r\nsimulated overwintering period, a range of physiological outcomes were measured,\r\nnamely survival, locomotor activity, tissue damage, energy store levels and\r\nmolecular stress responses.\r\n3. Survival, energy stores and locomotor activity were significantly lower following\r\nthe Warm overwintering environment than at lower temperatures, but tissue\r\ndamage and heat shock protein expression (a proxy for protein damage) did not\r\nsignificantly differ between the three temperatures. Survival was also significantly\r\nlower in larvae overwintered in Prasiola crispa algae, although the underlying\r\nmechanism is unclear. Heat shock proteins were expressed least in larvae\r\noverwintering in living moss, suggesting it is less stressful to overwinter in this\r\nsubstrate, perhaps due to a more defined structure affording less direct contact\r\nwith ice.\r\n4. Our results demonstrate that a realistic 2\u00b0C increase in winter microhabitat temperature\r\nreduces survival and causes energy deficits that have implications for subsequent\r\ndevelopment and reproduction. While our Warm winter scenario was close tothe range of observed overwintering temperatures for this species, warmer winters\r\nare expected to become more common in response to climate change. Conversely,\r\nif climate change reduces the length of winter, some of the negative consequences\r\nof winter warming may be attenuated, so it will be important to consider this factor\r\nin future studies. Nonetheless, our results indicate that winter warming could\r\nnegatively impact cold-adapted insects such as the Antarctic midge.", "east": -60.616133, "geometry": ["POINT(-62.49145 -64.04433850000001)"], "keywords": "Antarctica", "locations": "Antarctica", "north": -62.681, "nsf_funding_programs": "Antarctic Organisms and Ecosystems", "persons": "Devlin, Jack; Unfried, Laura; McCabe, Eleanor; Gantz, Josiah D.; Kawarasaki, Yuta; Elnitsky, Michael; Hotaling, Scott; Michel, Andrew; Convey, Peter; Hayward, Scott; Teets, Nicholas", "project_titles": null, "projects": null, "repositories": null, "science_programs": null, "south": -65.407677, "title": "Simulated winter warming negatively impacts survival of Antarctica\u0027s only endemic insect", "uid": "601694", "west": -64.366767}, {"awards": "1246190 Yu, Zicheng", "bounds_geometry": ["POLYGON((-68.5 -64,-67.73 -64,-66.96 -64,-66.19 -64,-65.42 -64,-64.65 -64,-63.88 -64,-63.11 -64,-62.34 -64,-61.57 -64,-60.8 -64,-60.8 -64.36,-60.8 -64.72,-60.8 -65.08,-60.8 -65.44,-60.8 -65.8,-60.8 -66.16,-60.8 -66.52,-60.8 -66.88,-60.8 -67.24,-60.8 -67.6,-61.57 -67.6,-62.34 -67.6,-63.11 -67.6,-63.88 -67.6,-64.65 -67.6,-65.42 -67.6,-66.19 -67.6,-66.96 -67.6,-67.73 -67.6,-68.5 -67.6,-68.5 -67.24,-68.5 -66.88,-68.5 -66.52,-68.5 -66.16,-68.5 -65.8,-68.5 -65.44,-68.5 -65.08,-68.5 -64.72,-68.5 -64.36,-68.5 -64))"], "date_created": "Mon, 24 Jul 2017 00:00:00 GMT", "description": "We used subfossil mosses and peats to document changes in regional climate, cryosphere, and terrestrial ecosystems in the western Antarctic Peninsula at ~65S latitude. We find that most peat-forming ecosystems have initiated since 2800 cal BP, in response to warmer summers and increasing summer insolation. The period at 900-600 cal BP was coldest as indicated by ice advance, abundance of kill ages from ice-entombed mosses exposed recently from retreating glacial ice, and apparent gap in peatbank initiation. Furthermore, the discovery of a novel Antarctic hairgrass (Deschampsia antarctica) peatland at 2300-1200 cal BP from the mainland Antarctic Peninsula suggests a much warmer climate than the present. A warming and wetting climate in the 1980s caused very high carbon accumulation in a Polytrichum strictum moss peatbank. Our results document dramatic transformations of landscape and ecosystems in response to past warmer climate, providing a telltale sign for what may come in the future.", "east": -60.8, "geometry": ["POINT(-64.65 -65.8)"], "keywords": "Antarctica; Antarctic Peninsula; Biota; Moss; Paleoclimate; Sample/collection Description; Sample/Collection Description", "locations": "Antarctica; Antarctic Peninsula", "north": -64.0, "nsf_funding_programs": null, "persons": "Yu, Zicheng", "project_titles": "Collaborative Research: Response of Carbon Accumulation in Moss Peatbanks to Past Warm Climates in the Antarctic Peninsula", "projects": [{"proj_uid": "p0000341", "repository": "USAP-DC", "title": "Collaborative Research: Response of Carbon Accumulation in Moss Peatbanks to Past Warm Climates in the Antarctic Peninsula"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -67.6, "title": "Late Holocene paleoecological and paleoclimatic data from moss peatbanks in the western Antarctic Peninsula", "uid": "601037", "west": -68.5}, {"awards": "0739693 Ashworth, Allan", "bounds_geometry": ["POLYGON((160 -77,160.2 -77,160.4 -77,160.6 -77,160.8 -77,161 -77,161.2 -77,161.4 -77,161.6 -77,161.8 -77,162 -77,162 -77.1,162 -77.2,162 -77.3,162 -77.4,162 -77.5,162 -77.6,162 -77.7,162 -77.8,162 -77.9,162 -78,161.8 -78,161.6 -78,161.4 -78,161.2 -78,161 -78,160.8 -78,160.6 -78,160.4 -78,160.2 -78,160 -78,160 -77.9,160 -77.8,160 -77.7,160 -77.6,160 -77.5,160 -77.4,160 -77.3,160 -77.2,160 -77.1,160 -77))"], "date_created": "Thu, 01 Jan 2009 00:00:00 GMT", "description": "This project studies the last vestiges of life in Antarctica from exceptionally well-preserved fossils of tundra life--mosses, diatoms, ostracods, Nothofagus leaves, wood, and insect remains recently discovered in ancient lake sediments from the McMurdo Dry Valleys. The area will be studied by an interdisciplinary team to elucidate information about climate and biogeography. These deposits offer unique and direct information about the characteristics of Antarctica during a key period in its history, the time when it was freezing. This information is critical for correlation with indirect proxies, such as though obtained from drill cores, for climate and state of the ice sheet. The results will also help understand the origin and migration of similar organisms found in South America, India and Australia. In terms of broader impacts, this project supports an early career researcher, undergraduate and graduate student research, various forms of outreach to K12 students, and extensive international collaboration. The work also has societal relevance in that the outcomes will offer direct constraints on Antarctica\u0027s ice sheet during a time with atmospheric CO2 contents similar to those of the earth in the coming centuries, and thus may help predictive models of sea level rise.", "east": 162.0, "geometry": ["POINT(161 -77.5)"], "keywords": "Antarctica; Geochronology; Geology/Geophysics - Other; GPS; Solid Earth", "locations": "Antarctica", "north": -77.0, "nsf_funding_programs": null, "persons": "Ashworth, Allan; Lewis, Adam", "project_titles": "Collaborative Research: Integrating Geomorphological and Paleoecological Studies to Reconstruct Neogene Environments of the Transantarctic Mountains", "projects": [{"proj_uid": "p0000188", "repository": "USAP-DC", "title": "Collaborative Research: Integrating Geomorphological and Paleoecological Studies to Reconstruct Neogene Environments of the Transantarctic Mountains"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -78.0, "title": "Integrating Geomorphological and Paleoecological Studies to Reconstruct Neogene Environments of the Transantarctic Mountains", "uid": "600081", "west": 160.0}]

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