Abstract:
The dataset contains measurements of mean atmospheric ammonia concentrations taken at seven locations in and around Cape Hallett, northern Victoria Land. The data were obtained using ALPHA passive diffusion samplers mounted at a height of 1.5 m above ground. Samplers were exposed in triplicate at each site for three periods: 26th December 2005 to 10th January 2006, 11th to 17th and 17th to 23rd January 2006, which coincided with the penguin breeding season.
Various chemical and physiological analyses of ecological materials were also conducted during the period December 2004 to January 2006, to study the effects of nitrogen enrichment on lichens. Analyses were performed on whole thalli of Umbilicaria decussata and Xanthomendosa borealis and the terminal 10-20 mm of Usnea sphacelata with Nitrogen (N), Phosphorus (P) and delta 15N values determined. Other samples analysed for N and P values include guano-rich surface soil collected from Seabee Hook to a depth of 5 mm, and an Adelie chick leg muscle, dissected from recent skua kills.
Replicate values for phosphomonoesterase activity in the lichen species Usnea sphacelata, Umbilicaria decussata and Xanthomendosa borealis are listed. Lichen samples were collected from various Cape Hallett sites and analysed using the p-nitropenol phosphate method at a range of pH values.
Keywords:
lichens, nitrogen, penguins
doi://10.5285/eba81a75-2e49-4063-92c8-97c26f300ce5
| Use Constraints: | Data released under Open Government Licence V3.0: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ |
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| Creation Date: | 2014-08-01 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | Prof Peter D Crittenden |
| Role(s) | Investigator |
| Organisation | University of Nottingham |
| Name | Prof Mark A Sutton |
| Role(s) | Investigator |
| Organisation | Centre for Ecology and Hydrology |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Y. Sim Tang |
| Role(s) | Investigator |
| Organisation | Centre for Ecology and Hydrology |
| Name | Mark R Theobald |
| Role(s) | Investigator |
| Organisation | Technical University of Madrid |
| Name | G. Minnullina |
| Role(s) | Investigator |
| Organisation | University of Nottingham |
| Name | C. M Scrimgeour |
| Role(s) | Investigator |
| Organisation | Scottish Crop Research Institute |
| Parent Dataset: | N/A |
| Reference: | Theobald et al, 2013. The application of inverse-dispersion and gradient methods to estimate ammonia emissions from a penguin colony. Atmospheric Environment, 81, pp. 320-29. DOI: 10.1016/j.atmosenv.2013.09.009 NERC grant reference: NE/C514874/1, see http://gotw.nerc.ac.uk |
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| Temporal Coverage: | |
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| Start Date | 2004-12-08 |
| End Date | 2006-01-23 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -72.44333 |
| Northernmost | -72.31861 |
| Longitude | |
| Westernmost | 169.92694 |
| Easternmost | 170.22833 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Antarctica |
| Detailed Location | Hallett, Cape |
| Data Collection: | Mean atmospheric ammonia concentrations were measured at seven locations using ALPHA passive diffusion samplers mounted at a height of 1.5 m above ground. Samplers were exposed in triplicate at each site for three periods: 26 December 2005 to 10 January 2006, 11 to 17 and 17 to 23 January 2006. |
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| Distribution: | |
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| Distribution Media | |
| Distribution Size | 42kb |
| Distribution Format | EXCEL |
| Fees | N/A |