Date (Creation)

2025-05-03

Date (Revision)

2025-05-03

Date (Publication)

2025-05-03

Date (released)

2025-05-03

Edition

1.0

Unique resource identifier

https://doi.org/10.5285/3f71209a-33d5-4d48-8899-d8a6d8d295e6

Codespace

doi

Unique resource identifier

GB/NERC/BAS/PDC/02056

Codespace

https://data.bas.ac.uk/

Other citation details

Please cite this item as: Mackley, E., Manthorpe, S.J., & Phillips, R.A. (2025). Oblique photography surveys and counts of black-browed and grey-headed albatrosses in a subset of colonies across South Georgia during the 2023/2024 season (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/3f71209a-33d5-4d48-8899-d8a6d8d295e6

Credit

No credit.

Status

Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Antarctic Survey	Mackley, Elizabeth		Author
British Antarctic Survey	Manthorpe, Sarah J		Author
British Antarctic Survey	Phillips, Richard A		Author
NERC EDS UK Polar Data Centre		PDCServiceDesk@bas.ac.uk	Point of contact

Maintenance and update frequency

As needed

Maintenance note

Completed

Global Change Master Directory (GCMD) Science Keywords

• EARTH SCIENCE > Biosphere > Ecological Dynamics > Endangered Species
• EARTH SCIENCE > Biosphere > Ecological Dynamics > Indicator Species
• EARTH SCIENCE > Biosphere > Ecological Dynamics > Population Dynamics
• EARTH SCIENCE > Biosphere > Ecological Dynamics > Survival
• EARTH SCIENCE > Biosphere > Zoology

Theme

• South Georgia

• black-browed albatross

• grey-headed albatross

• monitoring

• oblique photography

Place

• Bird Island, South Georgia Antarctica

• Sorn & Bernt, South Georgia Antarctica

• Cape North, South Georgia Antarctica

• Jomfruene, South Georgia Antarctica

• Welcome Islet, South Georgia Antarctica

• Sheathbill Bay, South Georgia Antarctica

• Sitka Bay, South Georgia Antarctica

• Cape Buller, South Georgia Antarctica

• Cape Wilson, South Georgia Antarctica

• Cape Crewe, South Georgia Antarctica

• Paryadin peninsula (north), South Georgia Antarctica

• Paryadin peninsula (south), South Georgia Antarctica

• Cooper Island, South Georgia Antarctica

GEMET - INSPIRE themes, version 1.0

• Habitats and biotopes

Access constraints

Other restrictions

Other constraints

no limitations to public access

Access constraints

Other restrictions

Other constraints

no limitations

Use constraints

License

Other constraints

Open Government Licence v3.0

Use constraints

Other restrictions

Other constraints

Data supplied under Open Government Licence v3.0

Use constraints

Other restrictions

Other constraints

No restrictions apply

Unique resource identifier

doi

Codespace

doi

Association Type

Cross reference

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Spatial representation type

Text, table

Language

English

Character set

UTF8

Topic category

• Biota
• Imagery base maps earth cover

Begin date

2023-11-21

End date

2023-11-30

Supplemental Information

It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk.

Title

European Petroleum Survey Group (EPSG) Geodetic Parameter Registry

Date (Publication)

2008-11-12

Cited responsible party

Organisation name	Individual name	Electronic mail address	Role
European Petroleum Survey Group		EPSGadministrator@iogp.org	Publisher

Unique resource identifier

urn:ogc:def:crs:EPSG::3031

Version

6.18.3

Hierarchy level

Dataset

Statement

Methodology:

Surveys:

Oblique photographic surveys were carried out using a Nikon D610 camera with a Nikon 28-400mm f3.5-5.6 lens or a Sony A7II camera with Sony 24-105mm f4 and Sigma 100-400mm f5-6.3 lenses, between the hours of 6:00 and 20:00 local time, from 2023-11-21 to 2023-11-30. Photos were taken in RAW and jpeg formats at a minimum shutter speed of 1/2000 of a second and underexposed to retain highlight detail needed to separate species.

Surveys were carried out on either the MV SG Pharos or a rigid inflatable boat (RIB) at a mean distance of 350m from the shore. Photo patterns were conducted in patterns of horizontally across and vertically from top to bottom/bottom to top.

Stitching:

Jpeg images were stitched using Microsoft Image Composite Editor and counted manually using DotDotGoose. Unstitched photographs were occasionally used to check for errors.

Annotation:

Albatrosses were recorded to species level or labelled unidentified when there was insufficient detail to categorise. Birds were counted twice, and for total counts the unidentified birds were assigned to a species based on the ratio of those identified in the colony. Birds were abbreviated like so: black-browed albatross = BBA and grey-headed albatross = GHA.

Data collection:

The following software was used in this dataset:

Microsoft Image Composite Editor software (v 2.0.3; softonic 2024)

DotDotGoose (v. 1.7.9; Ersts 2023)

Data quality:

Diurnal correction factor:

Counts were corrected for diurnal variation in attendance of non-breeding birds and failed breeders as in Poncet et al (2006, 2017), where 2-hour interval counts from selected colonies at Bird Island were used to standardise counts to 12:00h UTC.

Metadata

File identifier

3f71209a-33d5-4d48-8899-d8a6d8d295e6 XML

Metadata language

English

Character set

UTF8

Hierarchy level

Dataset

Hierarchy level name

dataset

Date stamp

2025-05-03

Metadata standard name

ISO 19115 Geographic Information - Metadata

Metadata standard version

ISO 19115:2003(E)

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS UK Polar Data Centre		polardatacentre@bas.ac.uk	Point of contact