Abundance and distribution of Striated Caracara in the Falkland Islands 2013-2015

The dataseries comprises of two years of survey of striated caracara across the Falkland Islands. Surveys were carried out by boat and on foot in order to count breeding pair of caracara (826 pairs in total). The surveys were conducted within the Darwin Initiative project 19-030 .

Data and Resources

Additional Info

Field Value
Last Updated December 21, 2020, 10:04 (PST)
Created January 30, 2020, 05:21 (PST)
Region Falkland Islands
Language eng
Topic Category Biota; flora and/or fauna in natural environment
Temporal Extent Start 2013-01-01
Temporal Extent End 2013-12-31
Dataset Reference Date 2015
Lineage A total of 79 islands surveyed out of a possible 145 were selected based on previous survey and anecdotal information (Strange 1996; Woods and Smith 1999; Woods 2007; FIG Island Database) that supported direct evidence of breeding pairs, either on specific islands or within island groups. Surveys of breeding pairs and potential breeding territories were carried out over the two austral summers of 2013 and 2014 and 2014 and 2015. To coincide with the peak breeding period during incubation and small chick rearing periods, work was carried out through November to January. Survey effort was conducted during 6 campaigns, two were undertaken from a yacht and landing on islands, and 4 were dedicated island visits to Steeple Jason (Jan 2013); Sea Lion Island (Jan 2013); Carcass Island (Jan 2013) and Grand Jason (Dec 2014). On land surveys each surveyor was assigned an area of coastline which was walked and a handheld GPS unit used to record waypoints for breeding territories and/or behaviour of adult breeding Striated Caracara. A total of six categories were selected based on previous survey methods (Woods and Smith 1999; Woods 2007) and count of pair was carried out for each category: 1. Adult sitting or chicks/eggs seen in nest; 2. Adults displaying or aggressive; 3. At least one adult in a possible breeding territory; 4. Empty nest with an adult or adults in area; 5. Empty nest with no adults; 6. Adult and nest seen but contents not confirmed. Comparison with breeding population count was made as well as assessment of population trend. More details are available on the report entitled: "A review of the abundance and distribution of Striated Caracaras Phalcoboenus australis on the Falkland Islands" Micky Reeves and Sarah Crofts. Falklands Conservation, May 2015 available on request to the authors.
West Longitude -61.4548
South Latitude -52.9257
East Longitude -57.6865
North Latitude -50.9992
Spatial Reference System WGS84
Responsible Organisation Name Hidden (personal data protection)
Contact Mail Address Hidden (personal data protection)
Responsible Party Role Hidden (personal data protection)
Access Limitations Restricted, send data request to data custodian
Use Constraints Open, but copyright and/or Intellectual Property Rights apply
Resource Reference Cite data source as: Reeves M., Crofts S., Bildstein K.L., 2018,Distribution and abundance of breeding striated caracaras in the Falkland Islands (Malvinas), Journal Raptors Res, 52(3), 309-315
Data Format shape, pdf
Update Frequency not planned
Accuracy 5 metres
Resource Type Dataseries
Original Title Hidden (internal use only)
Metadata Date 2015-12-02
Metadata Point of Contact datamanager@saeri.ac.fk
Contact Consent Contact details hidden
Unique Resource ID FK-FC-245

Dataset extent

Map Data by OpenStreetMap