COLONY
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The survey was completed as part of ASAC project 1219 (ASAC_1219) during 2001/02 summer at Casey. GPS data were collected for all snow petrel nests and wilson's storm petrel nests located during intensive searches of ice-free areas in the Windmill Islands. Approximately 20% of the ice-free areas were surveyed in this manner. Public summary for project 1219: This project provides population data on Antarctic and Subantarctic seabirds that permit assessments to be made of natural population trends at local to regional scales, so that changes in populations due to to human disturbance, such as station activities and helicopter operations can be identified. The data file includes two shapefiles, one with snow petrel nest sites and the other with wilson storm petrel nest sites. The metadata records linked at the provided URLs describe the collection of locations of snow petrel nests at Casey in 1998/99 and 1999/2000.
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This GIS dataset contains bird data from 1998/99 field work in the Windmill Islands by Jonny Stark and Jeroen Creuwels. The locations are Frazier Islands, Ardery Island and Casey station. Polygon data represents the extents of flying bird nesting areas and adelie penguin colonies. Point data represents flying bird nest locations.
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This GIS dataset contains flying bird data from field work in the Windmill Islands by Jan van Franeker at Ardery Island and Odbert Island. Polygon data represents nesting areas. Point data represents nest locations on Ardery Island.
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This GIS dataset is the result of field work in the Windmill Islands by Eric Woehler. The locations are Frazier Islands, Shirley Island, Ford Island and Casey station. Polygon data represents the extents of flying bird nesting areas and adelie penguin colonies. Point data represents nest locations.
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The survey was completed as part of ASAC project 1219 (ASAC_1219) during February 2000 at Casey. Differentially corrected GPS data were collected for all snow petrel nests located during intensive searches of ice-free areas in the Casey station extended recreation area. Public summary for project 1219: This project provides population data on Antarctic and Subantarctic seabirds that permit assessments to be made of natural population trends at local to regional scales, so that changes in populations due to to human disturbance, such as station activities and helicopter operations can be identified.
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This dataset contains the results from surveys of Royal Penguins (Eudyptes schegeli) on Macquarie Island. The surveys were conducted between May 1984 and January 1985. The total number of Royal penguins breeding on Macquarie Island is estimated at 848,719 pairs (+/-10.5%). The sizes and locations of all 57 colonies are given. The results are listed in the documentation. All Royal penguins breeding at Macquarie Island were allocated to one of 57 colonies identified by locations and varying in size from 75 breeding pairs to over 160,000 breeding pairs. The mean number of nests in the Lower Sandy Bay plots was 2.43/m2 (range at 95% confidence limits 2.32-2.54). The occupied area given for Hurd Point colony has been reduced by 5% from that surveyed to allow for two areas included in the survey which were subsequently found not to be used by breeding birds in the 1984-85 season. The variation in the difference between the lower and upper estimates of individual colonies given in Table 2 ranges from 17% to 50%. This was mainly due to the extreme variability of the terrain and/or the degree of association with Rockhopper penguins. The number of breeding pairs calculated for the colonies surveyed through the winter was 487,932 (range 465,838 - 510,014). The total estimated for the unsurveyed colonies was 360,787 (range 294,100 - 427,475) breeding pairs. The total estimated number of breeding pairs of Royal penguins on Macquarie Island is 848,719 +/- 10.5% (range 759,938 - 937,489). The dataset includes two text files (csv format) detailing the number of breeding pairs at each colony, and an sketch map of Macquarie Island detailing the locations of the colonies. The fields in this dataset are: Colony Area Range Breeding Pairs
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The approximate extent of seabird colonies on Scullin Monolith, Mac.Robertson Land, Antarctica in 1986/87. The species include Adelie Penguin, Antarctic Petrel, Cape Petrel, Southern Fulmar and South Polar Skua.
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The exact location of an Emperor Penguin Colony on Peterson Bank continually changes due to the changing ice conditions of where the colony is situated. The location confirmed on the 3rd of November 1994 on fast ice at Peterson Bank was 65.9333 S, 110.2 E, 41km NNW of Australia's Casey Station. The location was recorded by Ward Bremmers during a helicopter flight involved in the resupply operations from an ice-bound ship to Casey Station. The presence of chicks was confirmed on landing and an approximate count estimated chick numbers at 2000 with at least 1000 adults present. Many foraging animals were also observed in transit in the surrounding area. Approximately 100 dead chicks, ranging in age from a few weeks to 3 months old, were observed during a casual check in the immediate vicinity. The colony lies on fast ice amid grounded bergs in Peterson Bank. The surrounding icebergs are widely spaced (1-2km), so the colony site is relatively unsheltered from the prevailing easterly gales. The sea-ice thickness at the colony sites was 7-8m, suggesting the ice had been stable for the previous three or our seasons. However, during a second visit to the site on 24 December 1994, the ice at the colony site was breaking up, and 200 chicks in the process of moulting were observed drifting on a large ice floe. On the 24 of April in 1995, a large group of Adults on new ice amid grounded bergs in the Peterson Bank was sighted, suggesting that the colony was reforming. The fields in this dataset are: Date Latitude Longitude Number of Adults Number of Chicks Dead Chicks Comments
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Long term data sets are useful for identifying temporal changes in the abundance of breeding populations of Antarctic seabirds. This data set is one of only two long term data sets existing for Snow Petrels. The data set comprises records of snow petrel activity for up to 109 nests clearly marked on the colony of Reeve Hill (near Casey station)between 1984 and 2003. A map of the exact nests locations is available as Arcview shapefile. In the database, the following information was recorded in an Excel worksheet: - For each colony check: observer(s) name(s), date and time of the nests check, weather before and during observations - For each nest: 1/nests condition (whether filled with ice/snow or (partially) accessible) 2/activity level in the nests: presence/absence of birds, what sex if known, other signs of activity (footprints, guano, stomach oil) 3/presence of an egg or chick, live or failed 4/presence of old remnants in the nest(egg, chicks) 5/Any specific comments No data are available for years 1987-1988 and 1988-1989. Data are only available for the early part of the breeding season for 1991-1992, 1992-1993 and 1999-2000. The fields in this dataset are: Field Season Date Type of Observation Time start Nest Number Nest condition Old Remnants Activity Egg/Chick Comments
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This project empirically measures the effects of human activity on the behaviour and reproductive success of Gentoo penguins on Macquarie Island. This was achieved by 1) collecting behavioural responses of individual penguins exposed to pedestrian approaches across the breeding stages of guard, creche and moult, and 2) collecting reproductive success data (chicks raised to creche age per nesting pair) for gentoo penguins colonies in areas of high and low human activity. Information produced includes minimum approach guidelines. As of April 2003 all data are stored on Hi-8 digital tape, due to be transformed during 2003 - 2004 into a timecoded tab-delimited text format for analysis using the Observer (Noldus Information Technology 2002). This work was carried out as part of ASAC project 1148 (ASAC_1148). The fields in this dataset are: Sample Date Breeding Phase Stimulus Type Colony Focal birds tape number Wide angle tape number Location within colony Weather Time Windspeed Temperature Precipitation Cloud Pre-approach control Approach Post-approach control Maximum approach distance