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Easier access to scientific data |
Brought to you by NOAA NMFS SWFSC ERD |
| Dataset Title: | Structural size measurements and isotopic signatures of foraging among adult male and female gentoo penguins (Pygoscelis papua) nesting along the Palmer Archipelago near Palmer Station, 2007-2009 
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| Institution: | National Science Foundation (Dataset ID: StructuralSizeMeasurementsAndIsotopicSignaturesGentooPenguins) |
| Information: | Summary
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Attributes {
s {
study_name {
String column_name "studyName";
String comment "Cruise name";
String ioos_category "Unknown";
String long_name "Study";
}
sample_number {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 124;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
Float64 column_id 4419;
String column_name "col_4419";
String ioos_category "Statistics";
String long_name "Sample Number";
String lter_column_description "continuous numberng sequence for each sample";
String lter_column_name "Sample Number";
String lter_mscale "interval";
String lter_num_type "integer";
String lter_units_string "number";
String units_conventions "EML-2.0.1,EML-2.1.0,EML-LTER";
}
species {
Float64 column_id 4420;
String column_name "col_4420";
String ioos_category "Taxonomy";
String long_name "Species";
String lter_column_description "a string representing the species of an organism";
String lter_column_name "Species";
String lter_mscale "nominal";
}
region {
Float64 column_id 4421;
String column_name "col_4421";
String ioos_category "Location";
String long_name "Region";
String lter_column_description "Nominal region of Palmer LTER sampling grid";
String lter_column_name "Region";
String lter_mscale "nominal";
}
island_name {
Float64 column_id 4422;
String column_name "col_4422";
String ioos_category "Unknown";
String long_name "Island Name";
String lter_column_description "Island near Palmer Station where samples were collected";
String lter_column_name "Island";
String lter_mscale "nominal";
}
reproductive_stage {
Float64 column_id 4423;
String column_name "col_4423";
String ioos_category "Biology";
String long_name "Reproductive Stage";
String lter_column_description "Reproductive stage at sampling";
String lter_column_name "Stage";
String lter_mscale "nominal";
}
individual_id {
Float64 column_id 4424;
String column_name "col_4424";
String ioos_category "Identifier";
String long_name "Individual Id";
String lter_column_description "A unique ID for each individual in dataset";
String lter_column_name "Individual ID";
String lter_mscale "nominal";
}
full_clutch {
Float64 column_id 4425;
String column_name "col_4425";
String ioos_category "Unknown";
String long_name "Full Clutch";
String lter_column_description "Was the study nest observed with a full clutch, i.e., 2 eggs";
String lter_column_name "Clutch Completion";
String lter_mscale "nominal";
}
time {
String _CoordinateAxisType "Time";
Float64 actual_range 1.195344e+9, 1.2596256e+9;
String axis "T";
String calendar "proleptic_gregorian";
Float64 column_id 4426;
String column_name "col_4426";
String ioos_category "Time";
String long_name "Time";
String lter_column_description "Date study nest observed with 1 egg (sampled)";
String lter_column_name "Date Egg";
String lter_mscale "dateTime";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
}
culmen_length {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 40.9, 59.6;
Float64 column_id 4427;
String column_name "col_4427";
String ioos_category "Unknown";
String long_name "Culmen Length";
String lter_column_description "length of the dorsal ridge of a bird's bill";
String lter_column_name "Culmen Length";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "mm";
String lter_units_string "millimeter";
String units "mm";
String units_conventions "AND-LTER,BNZ-LTER,CDR-LTER,EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,MCR-LTER,SGS-LTER";
}
culmen_depth {
Float64 _FillValue NaN;
Float64 actual_range 13.1, 17.3;
Float64 column_id 4434;
String column_name "col_4434";
String ioos_category "Location";
String long_name "Culmen Depth";
String lter_column_description "depth of the dorsal ridge of a bird's bill";
String lter_column_name "Culmen Depth";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "mm";
String lter_units_string "millimeter";
Float64 missing_value NaN;
String units "mm";
String units_conventions "AND-LTER,BNZ-LTER,CDR-LTER,EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,MCR-LTER,SGS-LTER";
}
flipper_length {
Int16 _FillValue 32767;
Int16 actual_range 203, 231;
Float64 column_id 4428;
String column_name "col_4428";
String ioos_category "Unknown";
String long_name "Flipper Length";
String lter_column_description "Length of flipper";
String lter_column_name "Flipper Length";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "mm";
String lter_units_string "millimeter";
String units "mm";
String units_conventions "AND-LTER,BNZ-LTER,CDR-LTER,EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,MCR-LTER,SGS-LTER";
}
body_mass {
Int16 _FillValue 32767;
Int16 actual_range 3950, 6300;
Float64 column_id 4429;
String column_name "col_4429";
String ioos_category "Unknown";
String long_name "Body Mass";
String lter_column_description "Mass of body";
String lter_column_name "Body Mass";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "g";
String lter_units_string "gram";
String units "grams";
String units_conventions "AND-LTER,BNZ-LTER,CDR-LTER,EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,SGS-LTER";
}
sex {
Float64 column_id 4430;
String column_name "col_4430";
String ioos_category "Biology";
String long_name "Sex";
String lter_column_description "code for the sex of an animal";
String lter_column_name "Sex";
String lter_mscale "nominal";
}
ratio_of_15n_to_14n {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 7.6322, 8.83352;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
Float64 column_id 4431;
String column_name "col_4431";
String ioos_category "Unknown";
String long_name "Ratio Of 15n To 14n";
String lter_column_description "a measure of the ratio of stable isotopes 15N:14N";
String lter_column_name "Delta 15 N";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "o/oo";
String lter_units_string "permil";
String units "percent";
String units_conventions "SBC-LTER";
}
ratio_of_13c_to_12c {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -27.01854, -25.00169;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
Float64 column_id 4432;
String column_name "col_4432";
String ioos_category "Unknown";
String long_name "Ratio Of 13c To 12c";
String lter_column_description "a measure of the ratio of stable isotopes 13C:12C";
String lter_column_name "Delta 13 C";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "o/oo";
String lter_units_string "permil";
String units "percent";
String units_conventions "SBC-LTER";
}
comments {
Float64 column_id 4433;
String column_name "col_4433";
String ioos_category "Unknown";
String long_name "Comments";
String lter_column_description "Text field to provide additional relevant information for data";
String lter_column_name "Comments";
String lter_mscale "nominal";
}
}
NC_GLOBAL {
String _NCProperties "version=1|netcdflibversion=4.6.1|hdf5libversion=1.10.6";
String acknowledgement "Funding and support provided by the National Science Foundation";
String cdm_data_type "Other";
String comment "The Palmer, Antarctica, Long-Term Ecological Research project is a member site of the Long-Term Ecological Research program, a network of sites investigating diverse biomes. A team of researchers seeks to understand the structure and function of the Western Antarctic Peninsula's marine and terrestrial ecosystems in the context of seasonal-to-interannual atmospheric and sea ice dynamics, as well as long-term climate change. The PAL measurement system (or grid) is designed to study marine and terrestrial food webs consisting principally of diatom primary producers, the dominant herbivore Antarctic krill, and the apex predator Adelie penguin. An attenuated microbial food web is also a focus. PAL studies these ecosystems annually over a regional scale grid of oceanographic stations and seasonally at Palmer Station. \\n\\nPalmer Station is located on Anvers Island west of the Antarctic Peninula. The peninsula runs perpendicular to a strong climatic gradient between the cold, dry continental regime to the south, characteristic of the Antarctic interior, and the warm, moist, maritime regime to the north. North-south shifts in the gradient give rise to large environmental variability to climate change. Sea ice extent and variability affects ecosystem changes at all trophic levels. In addition to the long-term field and research activities, information management, graduate student training, education and outreach are an integral part of the program.";
String contributor_email "kgorman@sfu.ca";
String contributor_name "Kristen Gorman";
String contributor_role "PrincipalInvestigator";
String contributor_role_vocabulary "https://vocab.nerc.ac.uk/collection/G04/current/";
String Conventions "CF-1.8, ACDD-1.3, COARDS";
String creator_country "USA";
String creator_email "kerfoot@marine.rutgers.edu";
String creator_institution "Rutgers University";
String creator_name "John Kerfoot";
String creator_sector "academic";
String creator_type "person";
String creator_url "https://rucool.marine.rutgers.edu";
String datazoo_dataset_id "220";
String datazoo_datatable_id "220";
String datazoo_datatable_label "Structural size measurements and isotopic signatures - Gentoo Penguins";
String datazoo_datatable_name "StructuralsizemeasurementsandisotopicsignaturesGentooPenguins";
String date_created "2021-09-09T20:49:24Z";
String date_issued "2021-09-09T20:49:24Z";
String defaultDataQuery "null";
String defaultGraphQuery "time,body_mass&.draw=markers&.marker=6%7C5&.color=0x000000&.colorBar=%7C%7C%7C%7C%7C&.bgColor=0xffccccff";
String doi "https://doi.org/10.6073/pasta/9fc8f9b5a2fa28bdca96516649b6599b";
String geospatial_bounds_crs "EPSG:4326";
String geospatial_bounds_vertical_crs "EPSG:5831";
String geospatial_lat_resolution "0.00001 degree";
String geospatial_lat_units "degree_north";
String geospatial_lon_resolution "0.00001 degree";
String geospatial_lon_units "degree_east";
String geospatial_vertical_positive "down";
String geospatial_vertical_units "EPSG:5831";
String history
"/Users/kerfoot/data/lter/data/tsv/dat_220/dat_220_PAL0910.tsv
2025-05-04T12:23:40Z (local files)
2025-05-04T12:23:40Z http://pallter-data.marine.rutgers.edu/erddap/tabledap/StructuralSizeMeasurementsAndIsotopicSignaturesGentooPenguins.html";
String infoUrl "https://pal.lternet.edu/";
String institution "National Science Foundation";
String keywords "biology, birds, egg production, isotopes";
String keywords_vocabulary "LTER Controlled Vocabulary,CCE LTER Keywords";
String license "All data contained herein is licensed under the LTER Network Data Access Policy (https://lternet.edu/data-access-policy/). In accordance with scientific publishing conventions and professional etiquette, the consumer of these data (the \"Data User\") is expected to appropriately cite these data in any publication that results from their use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur and should realize that misinterpretation of data may occur if used out of context of the original study. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the data authors. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available \"as is.\" The Data User should be aware that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data.";
String license_link "https://lternet.edu/data-access-policy/";
String methods "General Methods: Each season, study nests, where pairs of adults were present, were individually marked and chosen before the onset of egg-laying, and consistently monitored. When study nests were found at the one-egg stage, both adults were captured to obtain blood samples used for molecular sexing and stable isotope analyses, and measurements of structural size and body mass. At the time of capture, each adult penguin was quickly blood sampled (~1 ml) from the brachial vein using a sterile 3 ml syringe and heparinized infusion needle. Collected blood was stored in 1.5 ml micro-centrifuge tubes that were kept cool. In the field, a small amount of whole blood was smeared on clean filter paper stored in a 1.5 ml micro-centrifuge tube for molecular sexing. Measurements of culmen length and depth (using dial calipers ± 0.1 mm), right flipper (using a ruler ± 1 mm), and body mass (using 5 kg ± 25 g or 10 kg ± 50 g Pesola spring scales and a weigh bag) were obtained to quantify body size variation. After handling, individuals at study nests were further monitored to ensure the pair reached clutch completion, i.e., two eggs.\\n\\nMolecular analyses were conducted at Simon Fraser University following standard PCR protocols, and stable isotope analyses were conducted at the Stable Isotope Facility at the University of California, Davis using an elemental analyzer interfaced with an isotope ratio mass spectrometer";
String naming_authority "edu.rutgers.rucool";
String product_version "1.0";
String program "LTER";
String project "Palmer LTER";
String publisher_country "USA";
String publisher_email "kerfoot@marine.rutgers.edu";
String publisher_institution "Rutgers University";
String publisher_name "John Kerfoot";
String publisher_type "person";
String publisher_url "https://rucool.marine.rutgers.edu";
String references "https://pal.lternet.edu/";
String sea_name "Southern Ocean";
String source "/Users/kerfoot/data/lter/data/tsv/dat_220/dat_220_PAL0708.tsv";
String sourceUrl "(local files)";
String standard_name_vocabulary "CF Standard Name Table v77";
String subsetVariables "study_name, species, region, island_name, reproductive_stage";
String summary "Sexual segregation in vertebrate foraging niche is often associated with sexual size dimorphism (SSD), i.e., ecological sexual dimorphism. We examined ecological sexual dimorphism among sympatric nesting Pygoscelis penguins near Palmer Station, Antarctica, asking whether environmental variability in the form of winter sea ice is associated with differences in male and female pre-breeding foraging niche. Each season, study nests, where pairs of adults were present, were individually marked and chosen before the onset of egg-laying, and consistently monitored. When study nests were found at the one-egg stage, both adults were captured to obtain blood samples used for molecular sexing and stable isotope analyses, and measurements of structural size and body mass. At the time of capture, each adult penguin was quickly blood sampled (~1 ml) from the brachial vein. After handling, individuals at study nests were further monitored to ensure the pair reached clutch completion, i.e., two eggs. Molecular analyses were conducted at Simon Fraser University following standard PCR protocols, and stable isotope analyses were conducted at the Stable Isotope Facility at the University of California, Davis using an elemental analyzer interfaced with an isotope ratio mass spectrometer";
String time_coverage_end "2009-12-01T00:00:00Z";
String time_coverage_start "2007-11-18T00:00:00Z";
String title "Structural size measurements and isotopic signatures of foraging among adult male and female gentoo penguins (Pygoscelis papua) nesting along the Palmer Archipelago near Palmer Station, 2007-2009";
}
}
Data Access Protocol (DAP) and its
selection constraints.
The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.
Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names,
followed by a collection of
constraints (e.g., variable<value),
each preceded by '&' (which is interpreted as "AND").
For details, see the tabledap Documentation.