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A GIS dataset of bird nests mapped in the Windmill Islands during the 2002-2003 season
Citation
Eric Woehler, Fredrique Olivier and Drew Lee, [date accessed] A GIS dataset of bird nests mapped in the Windmill Islands during the 2002-2003 season. World wide web publication, accessed through SCAR-MarBIN.

Description
This dataset contains locations of bird nests, mostly snow petrels, mapped in the Windmill Islands during the 2002-2003 season. more

Very little information is known about the distribution and abundance of snow petrels at the regional scale. Location of nests were recorded with handheld GPS receivers connected to a pocket PC and stored as a shapefile using Arcpad (ESRI software). Descriptive information relating to each bird nest was recorded and a detailed description of data fields is provided in the detailed description of the shapefiles. Two observers conducted the surveys using distinct methodologies, Frederique Olivier (FO) and Drew Lee (DL). Three separate nest location files (ArcView point shapefiles) were produced and correspond to each of the survey methodologies used. Methodology 1 was the use of 200*200 m grid squares in which exhaustive searches were conducted (FO). Methodology 2 was the use of 2 transects within each the 200*200 m grid squares; methodology 3 was the use of 4 small quadrats (ca 25 m) located within the 200*200m grid squares (DL). Nests mapped in a non-systematic manner (not following a specific methodology) are clearly identified within each dataset. Datasets were kept separate due to the incertainties caused by GPS errors (the same nest may have different locations due to GPS error). Three separate shapefiles describe survey methodologies: - one polygon shapefile locates the 200*200 grid sites searched systematically (FO) - one polygon shapefile locates the small quadrats (DL) - one line shapefile locates line transects (DL) Spatial characteristics, date of survey, search effort, number of nests found and other parameters are recorded for the grid sites, transect and quadrats. See the word document in the file download for more information. This work has been completed as part of ASAC project 1219 (ASAC_1219). The fields in this dataset are: Species Activity Type Entrances Slope Remnants Latitude Longitude Date Snow Eggchick Cavitysize Cavitydepth Distnn Substrate Comments SitedotID Aspect Firstfred Systematic/Edge/Incidental RecordCode

Scope
Keywords:
Marine, PSE, Antarctica, Wilkes Land, Budd Coast, Vincennes Bay, Windmill Islands, Aves

Geographical coverage
PSE, Antarctica, Wilkes Land, Budd Coast, Vincennes Bay, Windmill Islands

Temporal coverage
11 December 2002 - 16 February 2003
Unknown

Taxonomic coverage
Aves [WoRMS]

Parameters
Count, Presence of biota

Contributors
University of Tasmania (UTAS), moredata creatordata manager

Related datasets
Published in:
AntOBIS: Antarctic Ocean Biogeographic Information System, more

Dataset status: Completed
Data type: Data
Data origin: Research: field survey
Metadatarecord created: 2009-03-03
Information last updated: 2009-03-03
All data in IMIS is subject to the VLIZ privacy policy