Martinez Rendon, Ana Cristina; Braun, Christina; Kappelsberger, Maria; Boy, Jens; Casanova-Katny, Angelica; Glaser, Karin; Dumack, Kenneth: Algivorous Cercozoa shape the community composition of cryptogamic covers, the dominant vegetation in Polar Regions [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.972738 (dataset in review)
Abstract:
Soil algae are the most important primary producers where vascular plants are absent, as in the Arctic and Antarctica. They give rise to species-rich microbial food webs in biological soil crusts (biocrusts). The terrestrial snow- and ice-free areas are in permanent expansion as glaciers retreat, leaving behind extensive areas of uncovered rock and new soil. Biocrusts stabilize the soil surface and have an important role in soil development. However, the microbial food webs and the nutrient and energy flow to higher trophic levels remain largely unexplored. Here, we characterized the microbial predator-prey dynamics of polar soils by combining molecular and traditional culturing techniques. Using high-throughput sequencing of environmental samples, we assessed the biodiversity and function of soil protists, applying a trait-based approach for acquiring and describing functional traits, i.e., the feeding behavior of heterotrophic protists in relation to microalgae. The study encompasses the analysis of biocrust samples of three polar regions. In the Arctic, one region was sampled - Svalbard in the Arctic Ocean (78°N) in July 2021. In Antarctica, two regions were studied, i.e. King George Island (62°S) in the South Shetland archipelago of Maritime Antarctica and the Thala Hills oasis in Enderby Land, East Antarctica (67°S), between January and March 2022.
Keyword(s):
Supplement to:
Martinez Rendon, Ana Cristina; Braun, Christina; Kappelsberger, Maria; Boy, Jens; Casanova-Katny, Angelica; Glaser, Karin; Dumack, Kenneth (in review): Enhancing Microbial Predator-Prey Detection with Network and Trait-Based Analyses. Microbiome
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 5472008: Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Coverage:
Median Latitude: -8.204864 * Median Longitude: -11.524638 * South-bound Latitude: -67.668710 * West-bound Longitude: -58.956521 * North-bound Latitude: 78.236404 * East-bound Longitude: 45.919483
Date/Time Start: 2021-07-24T00:00:00 * Date/Time End: 2022-03-07T00:00:00
Event(s):
Continental_Antarctica_Blisnetzow * Latitude: -67.662867 * Longitude: 45.919483 * Date/Time: 2022-02-10T00:00:00 * Location: Antarctica * Method/Device: Soil outcrop
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Martinez Rendon, Ana Cristina | |||
| 2 | Latitude of event | Latitude | Martinez Rendon, Ana Cristina | |||
| 3 | Longitude of event | Longitude | Martinez Rendon, Ana Cristina | |||
| 4 | Date/Time of event | Date/Time | Martinez Rendon, Ana Cristina | |||
| 5 | Number | No | Martinez Rendon, Ana Cristina | |||
| 6 | Sample ID | Sample ID | Martinez Rendon, Ana Cristina | |||
| 7 | Location | Location | Martinez Rendon, Ana Cristina | |||
| 8 | Site | Site | Martinez Rendon, Ana Cristina | |||
| 9 | pH | pH | Martinez Rendon, Ana Cristina | pH measurement in Calcium Chloride Solution | Solution = 1:2.5 ratio. Measured at the University of Rostock. | |
| 10 | Nitrogen, total | TN | % | Martinez Rendon, Ana Cristina | CHSN Elemental Analyser, Elementar Analysen systeme GmbH, Germany, vario EL III | CNS analysis after treatment with HCl. Measured at the University of Rostock. |
| 11 | Carbon, organic, total | TOC | % | Martinez Rendon, Ana Cristina | CHSN Elemental Analyser, Elementar Analysen systeme GmbH, Germany, vario EL III | CNS analysis after treatment with HCl. Measured at the University of Rostock. |
| 12 | Carbon/Nitrogen ratio | C/N | Martinez Rendon, Ana Cristina | Calculated | ||
| 13 | Phosphorus | P | mg/kg | Martinez Rendon, Ana Cristina | Spectral photometry, molybdenum blue | Measured at the University of Rostock. |
| 14 | Sample comment | Sample comment | Martinez Rendon, Ana Cristina |
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:
1160 data points