Antarctic_shags

This repository is for the list of surveys from Antarctic shag breeding locations originally compiled in Schrimpf, Naveen, and Lynch. Population status of the Antarctic shag (Phalacrocorax [atriceps] bransfieldensis). In review at Antarctic Science.

Note: While the paper is in review, the database file is a placeholder, with only the first few lines from the database.

Instructions

Surveys can be added by adding rows to the database.csv file. Please check the list first to ensure that any entries from colonies already in the database have matching names.

When entering a new data source, please add the full citation to the bottom of this README, following the same format convention.

Any data used for publication should cite the original data source

Note: since this is a csv file, please refrain from using commas in the comments field.

Column Headers

1. Name: location name
2. Lat: latitude (decimal degrees; WGS1984)
3. Lon: longitude (decimal degrees; WGS1984)
4. Region
   • 1=Antarctic Peninsula/South Shetland Islands
   • 0=South Orkney Islands
5. Trend_code
   • 0=most recent count, used in population total
   • 1=historical (<1995/96 when current count is >=2005/06), used in dacadal analysis
   • 2=trend (when >10 counts were available), displayed in Figure 2B-K
6. Count_Date: date of count
7. Count_Season: season of count (the year that season started, i.e. 1995 represents 1995/96)
8. Count_Type:
   • N=active nests or breeding pairs present
   • A=adults present
   • C=chicks present
9. Count: reported count
10. Accuracy:
    • 1: <5%
    • 2: 5-10%
    • 3: 10-25%
    • 4: 25-50%
    • 5: order of magnitude
    • UNK: not reported (conservatively assumed 4)
11. Data_Source: citation (see full list below)
12. Pop_Estimate: population estimate derived from the count. Chick counts were divided by 1.7; adult counts were divided by 1.5. Any calculations rounded to the nearest integer.
13. Comments: Relevant comments

Citations

BAS unpublished data
British Antarctic Survey. Contact: Michael Dunn mdunn@bas.ac.uk

Bruce and Furse 1973; cited in Harris et al. 2011
BRUCE, G. & FURSE, C. 1973. Elephant Island Joint Services Expedition 1970 – 71. Ornithological Report. BAS Archives Doc. 1999/33/45.

Casanovas et al. 2015
CASANOVAS, P., NAVEEN, R., FORREST, S., PONCET, J. & LYNCH, H. 2015. A comprehensive coastal seabird survey maps out the front lines of ecological change on the western Antarctic Peninsula. Polar Biology, 1-14, 10.1007/s00300-015-1651-x.

Casaux and Barrera-Oro 2016
CASAUX, R. & BARRERA-ORO, E. 2016. Linking population trends of Antarctic shag (Phalacrocorax bransfieldensis) and fish at Nelson Island, South Shetland Islands (Antarctica). Polar Biology, 39, 1491-1497, 10.1007/s00300-015-1850-5.

Coria et al. 2011
CORIA, N.R., MONTALTI, D., ROMBOLA, E., SANTOS, M.M., GARCIA BETOÑO, M.I. & JUARES, M.A. 2011. Birds at Laurie Island, South Orkney Islands, Antarctica: breeding species and theur distribution. Marine Ornithology, 39, 207-213.

W. Fraser unpublished data
Contact: bfraser@3rivers.net

Harris 2006
HARRIS, C.M. 2006. Wildlife Awareness Manual: Antarctic Peninsula, South Shetland Islands, South Orkney Islands. Cambridge: Environmental Research & Assessment, 136 pp.

Harris et al. 2011
HARRIS, C., CARR, R., LORENZ, K. & JONES, S. 2011. Important Bird Areas in Antarctica: Antarctic Peninsula, South Shetland Islands, South Orkney Islands–final report. Prepared for BirdLife International and the Polar Regions Unit of the UK Foreign & Commonwealth Office. Environmental Research & Assessment Ltd., Cambridge: 225 pp.

Heimark and Heimark 1988
HEIMARK, G. & HEIMARK, R. 1988. Observations of birds and marine mammals at Palmer Station November 1985 to November 1986. Antarctic Journal of the United States, 23, 14-17.

Lynch et al. 2013
LYNCH, H.J., NAVEEN, R. & CASANOVAS, P. 2013. Antarctic Site Inventory breeding bird survey data, 1994–2013. Ecology, 94, 2653-2653, 10.1890/13-1108.1.

H. Lynch unpublished data
Antarctic Site Inventory data not yet available from published sources. Contact: heather.lynch@stonybrook.edu

Petry et al. 2016
PETRY, M.V., VALLS, F.C.L., PETERSEN, D.S.E., KRÜGER, L., PIUCO, D.C.R. & DOS SANTOS, C.R. 2016. Breeding sites and population of seabirds on Admiralty Bay, King George Island, Antarctica. Polar Biology, 39, 1343-1349, 10.1007/s00300-015-1846-1.

Poncet archival data
S. PONCET & J. PONCET archival data, referenced in Harris 2006 and Harris et al. 2011. Contact: sallyponcet@horizon.co.fk Several references in the Poncet's database contain personal communications from others, which are identified as such in the citation. There were also several records with numbered references for which the associated key no longer exists - these may be published or unpublished and are identified in the citation as "unknown source cited in Poncet data"

Shuford and Spear 1988
SHUFORD, W.D. & SPEAR, L.B. 1988. Surveys of breeding penguins and other seabirds in the South Shetland Islands, Antarctica, January-February 1987. Technical Memorandum NMFS-F/NEC-59. U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Northeast Fisheries Center, Woods Hole, Massachusetts: 27 pp.