ERDDAP > info > zd_705

Grid DAP Data	Sub- set	Table DAP Data	Make A Graph	W M S	Source Data Files	Title	Sum- mary	FGDC, ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
	set	data	graph		files	Tracking of Arctic tern migrations 2007-2008		F   I   M	background			GINR	zd_705

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	AccConID	String	24
attribute	NC_GLOBAL	AccConstrDescription	String	This license lets others remix, tweak, and build upon your work non-commercially, and although their new works must also acknowledge you and be non-commercial, they don’t have to license their derivative works on the same terms
attribute	NC_GLOBAL	AccConstrDisplay	String	This dataset is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
attribute	NC_GLOBAL	AccConstrEN	String	Attribution-NonCommercial (CC BY-NC)
attribute	NC_GLOBAL	AccessConstraint	String	Attribution-NonCommercial (CC BY-NC)
attribute	NC_GLOBAL	AccessConstraints	String	None
attribute	NC_GLOBAL	Acronym	String	None
attribute	NC_GLOBAL	added_date	String	2012-06-13 15:53:41.127000
attribute	NC_GLOBAL	BrackishFlag	String	0
attribute	NC_GLOBAL	CDate	String	2012-05-14
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	CheckedFlag	String	0
attribute	NC_GLOBAL	Citation	String	Egevang, C. 2012. Tracking of Arctic tern migrations 2007-2008. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/705) on yyyy-mm-dd.
attribute	NC_GLOBAL	Comments	String	None
attribute	NC_GLOBAL	ContactEmail	String	None
attribute	NC_GLOBAL	Conventions	String	COARDS, CF-1.6, ACDD-1.3
attribute	NC_GLOBAL	creator_name	String	Egevang
attribute	NC_GLOBAL	CurrencyDate	String	None
attribute	NC_GLOBAL	DasID	String	3074
attribute	NC_GLOBAL	DasOrigin	String	Research: field survey
attribute	NC_GLOBAL	DasType	String	Data
attribute	NC_GLOBAL	DasTypeID	String	1
attribute	NC_GLOBAL	DateLastModified	String	{'date': '2025-02-18 01:34:01.301036', 'timezone_type': 1, 'timezone': '+01:00'}
attribute	NC_GLOBAL	DescrCompFlag	String	0
attribute	NC_GLOBAL	DescrTransFlag	String	0
attribute	NC_GLOBAL	Easternmost_Easting	double	107.5
attribute	NC_GLOBAL	EmbargoDate	String	None
attribute	NC_GLOBAL	EngAbstract	String	The study of long-distance migration provides insights into the habits and performance of organisms at the limit of their physical abilities. The Arctic tern Sterna paradisaea is the epitome of such behavior; despite its small size (<125 g), banding recoveries and at-sea surveys suggest that its annual migration from boreal and high Arctic breeding grounds to the Southern Ocean may be the longest seasonal movement of any animal. Our tracking of 11 Arctic terns fitted with miniature (1.4 g) geolocators revealed that these birds do indeed travel huge distances (more than 80,000 km annually for some individuals). As well as confirming the location of the main wintering region, we also identified a previously unknown oceanic stopover area in the North Atlantic used by birds from at least two breeding populations (from Greenland and Iceland). Although birds from the same colony took one of two alternative southbound migration routes following the African or South American coast, all returned on a broadly similar, sigmoidal trajectory, crossing from east to west in the Atlantic in the region of the equatorial Intertropical Convergence Zone. Arctic terns clearly target regions of high marine productivity both as stopover and wintering areas, and exploit prevailing global wind systems to reduce flight costs on long-distance commutes. 
attribute	NC_GLOBAL	EngDescr	String	Purpose: The Arctic tern is known to make the longest annual migration in the animal kingdom. During its breeding season, it is found far to the north where summer days are long, and it winters far south in the southern hemisphere, where the days are longest during November to February. This means that the Arctic tern probably experiences more sun light during a calendar year than any other creature on Earth. The long-distance travel of the Arctic tern is well-known both amongst researchers and in the broader public. Now, for the first time, technological advances allow us to follow the Arctic tern on its immense journey, practically from pole to pole. Supplemental information: Four erroneous points were removed from the original dataset: ARTE_410, 9/17/2007 noon; ARTE_370, 9/13/2007 noon; ARTE_373, 9/15/2007 noon and 9/16/2007 noon. Sand Island (74.263 degrees N, 20.160 degrees W), northeast Greenland, is the breeding colony for these Arctic terns and was placed on the map (red-orange square). Sand Island can be used as the beginning and end of all tracks, but since exact dates of the starting and ending of the migration were not available (high-Arctic zone = continuous day light during summer = poor positions when using geolocators), the tracklines for each animal were not mapped to and from the breeding colony. Original provider: Greenland Institute of Natural Resources Dataset credits: Greenland Institute of Natural Resources
attribute	NC_GLOBAL	FreshFlag	String	0
attribute	NC_GLOBAL	GBIF_UUID	String	767f57dd-bdb8-44cb-bf20-f9aafafa4137
attribute	NC_GLOBAL	geospatial_lat_max	double	71.5
attribute	NC_GLOBAL	geospatial_lat_min	double	-76.5
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	107.5
attribute	NC_GLOBAL	geospatial_lon_min	double	-62.5
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	None
attribute	NC_GLOBAL	InputNotes	String	None
attribute	NC_GLOBAL	institution	String	GINR
attribute	NC_GLOBAL	keywords	String	aphia_id, BasisOfRecord, DayCollected, InstitutionCode, latitude, longitude, MonthCollected, Notes, ObservedIndividualCount, ScientificName, time, YearCollected
attribute	NC_GLOBAL	License	String	https://creativecommons.org/licenses/by-nc/4.0
attribute	NC_GLOBAL	license	String	The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information.
attribute	NC_GLOBAL	Lineage	String	None
attribute	NC_GLOBAL	MarineFlag	String	1
attribute	NC_GLOBAL	modified_sync	String	2021-02-04 00:00:00
attribute	NC_GLOBAL	Northernmost_Northing	double	71.5
attribute	NC_GLOBAL	OrigAbstract	String	None
attribute	NC_GLOBAL	OrigDescr	String	None
attribute	NC_GLOBAL	OrigDescrLang	String	English
attribute	NC_GLOBAL	OrigDescrLangNL	String	Engels
attribute	NC_GLOBAL	OrigLangCode	String	en
attribute	NC_GLOBAL	OrigLangCodeExtended	String	eng
attribute	NC_GLOBAL	OrigLangID	String	15
attribute	NC_GLOBAL	OrigTitle	String	None
attribute	NC_GLOBAL	OrigTitleLang	String	English
attribute	NC_GLOBAL	OrigTitleLangCode	String	en
attribute	NC_GLOBAL	OrigTitleLangID	String	15
attribute	NC_GLOBAL	OrigTitleLangNL	String	Engels
attribute	NC_GLOBAL	Progress	String	Completed
attribute	NC_GLOBAL	PublicFlag	String	1
attribute	NC_GLOBAL	ReleaseDate	String	None
attribute	NC_GLOBAL	ReleaseDate0	String	None
attribute	NC_GLOBAL	RevisionDate	String	None
attribute	NC_GLOBAL	SizeReference	String	3468 tracking records
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	Southernmost_Northing	double	-76.5
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v70
attribute	NC_GLOBAL	StandardTitle	String	Tracking of Arctic tern migrations 2007-2008
attribute	NC_GLOBAL	StatusID	String	1
attribute	NC_GLOBAL	subsetVariables	String	ScientificName,BasisOfRecord,YearCollected,MonthCollected,DayCollected,aphia_id
attribute	NC_GLOBAL	summary	String	The study of long-distance migration provides insights into the habits and performance of organisms at the limit of their physical abilities. The Arctic tern Sterna paradisaea is the epitome of such behavior; despite its small size (<125 g), banding recoveries and at-sea surveys suggest that its annual migration from boreal and high Arctic breeding grounds to the Southern Ocean may be the longest seasonal movement of any animal. Our tracking of 11 Arctic terns fitted with miniature (1.4 g) geolocators revealed that these birds do indeed travel huge distances (more than 80,000 km annually for some individuals). As well as confirming the location of the main wintering region, we also identified a previously unknown oceanic stopover area in the North Atlantic used by birds from at least two breeding populations (from Greenland and Iceland). Although birds from the same colony took one of two alternative southbound migration routes following the African or South American coast, all returned on a broadly similar, sigmoidal trajectory, crossing from east to west in the Atlantic in the region of the equatorial Intertropical Convergence Zone. Arctic terns clearly target regions of high marine productivity both as stopover and wintering areas, and exploit prevailing global wind systems to reduce flight costs on long-distance commutes. 
attribute	NC_GLOBAL	TerrestrialFlag	String	0
attribute	NC_GLOBAL	time_coverage_end	String	2008-05-31T01:00:00Z
attribute	NC_GLOBAL	time_coverage_start	String	2007-01-01T01:00:00Z
attribute	NC_GLOBAL	title	String	Tracking of Arctic tern migrations 2007-2008
attribute	NC_GLOBAL	UDate	String	2024-08-08
attribute	NC_GLOBAL	VersionDate	String	None
attribute	NC_GLOBAL	VersionDay	String	14
attribute	NC_GLOBAL	VersionMonth	String	5
attribute	NC_GLOBAL	VersionName	String	1
attribute	NC_GLOBAL	VersionYear	String	2012
attribute	NC_GLOBAL	VlizCoreFlag	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-62.5
variable	ScientificName		String
attribute	ScientificName	long_name	String	ScientificName
attribute	ScientificName	sdn_P02_name	String	SeaDataNet biological format biotic parameters
attribute	ScientificName	sdn_P02_uri	String	https://vocab.nerc.ac.uk/collection/P02/current/BPRP/
attribute	ScientificName	sdn_P02_urn	String	SDN:P02::BPRP
attribute	ScientificName	sdn_parameter_name	String	Taxon of biological entity specified elsewhere
attribute	ScientificName	sdn_parameter_uri	String	https://vocab.nerc.ac.uk/collection/P01/current/SCNAME01/
attribute	ScientificName	sdn_parameter_urn	String	SDN:P01::SCNAME01
attribute	ScientificName	sdn_uom_name	String	Not applicable
attribute	ScientificName	sdn_uom_uri	String	https://vocab.nerc.ac.uk/collection/P06/current/XXXX/
attribute	ScientificName	sdn_uom_urn	String	SDN:P06::XXXX
attribute	ScientificName	standard_name	String	scientificname
attribute	ScientificName	units	String	Not applicable
attribute	ScientificName	units_uri	String	https://vocab.nerc.ac.uk/collection/P01/current/SCNAME01/
variable	BasisOfRecord		String
attribute	BasisOfRecord	long_name	String	BasisOfRecord
attribute	BasisOfRecord	units	String	None
attribute	BasisOfRecord	units_uri	String	None
variable	InstitutionCode		String
attribute	InstitutionCode	long_name	String	InstitutionCode
attribute	InstitutionCode	units	String	None
attribute	InstitutionCode	units_uri	String	None
variable	YearCollected		float
attribute	YearCollected	actual_range	float	2007.0, 2008.0
attribute	YearCollected	long_name	String	YearCollected
attribute	YearCollected	units	String	None
attribute	YearCollected	units_uri	String	None
variable	MonthCollected		float
attribute	MonthCollected	actual_range	float	1.0, 12.0
attribute	MonthCollected	long_name	String	MonthCollected
attribute	MonthCollected	units	String	None
attribute	MonthCollected	units_uri	String	None
variable	DayCollected		float
attribute	DayCollected	actual_range	float	1.0, 31.0
attribute	DayCollected	long_name	String	DayCollected
attribute	DayCollected	units	String	None
attribute	DayCollected	units_uri	String	None
variable	time		double
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.1676132E9, 1.2121956E9
attribute	time	axis	String	T
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	Time
attribute	time	standard_name	String	time
attribute	time	time_origin	String	01-JAN-1970 00:00:00
attribute	time	time_precision	String	1970-01-01T00:00:00Z
attribute	time	units	String	seconds since 1970-01-01T00:00:00Z
attribute	time	units_uri	String	https://vocab.nerc.ac.uk/collection/P01/current/CJDY1101
variable	ObservedIndividualCount		float
attribute	ObservedIndividualCount	actual_range	float	1.0, 6.0
attribute	ObservedIndividualCount	long_name	String	ObservedIndividualCount
attribute	ObservedIndividualCount	units	String	http://rs.tdwg.org/dwc/terms/individualCount
attribute	ObservedIndividualCount	units_uri	String	http://rs.tdwg.org/dwc/terms/individualCount
variable	Notes		String
attribute	Notes	long_name	String	Notes
attribute	Notes	units	String	None
attribute	Notes	units_uri	String	None
variable	longitude		float
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	actual_range	float	-62.5, 107.5
attribute	longitude	axis	String	X
attribute	longitude	ioos_category	String	Location
attribute	longitude	long_name	String	Longitude
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
attribute	longitude	units_uri	String	https://vocab.nerc.ac.uk/collection/P01/current/ALONZZ01
variable	latitude		float
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	actual_range	float	-76.5, 71.5
attribute	latitude	axis	String	Y
attribute	latitude	ioos_category	String	Location
attribute	latitude	long_name	String	Latitude
attribute	latitude	standard_name	String	latitude
attribute	latitude	units	String	degrees_north
attribute	latitude	units_uri	String	https://vocab.nerc.ac.uk/collection/P01/current/ALATZZ01
variable	aphia_id		float
attribute	aphia_id	long_name	String	aphia_id
attribute	aphia_id	sdn_P02_name	String	SeaDataNet biological format biotic parameters
attribute	aphia_id	sdn_P02_uri	String	https://vocab.nerc.ac.uk/collection/P02/current/BPRP/
attribute	aphia_id	sdn_P02_urn	String	SDN:P02::BPRP
attribute	aphia_id	sdn_parameter_name	String	Identifier (LSID) of biological entity specified elsewhere
attribute	aphia_id	sdn_parameter_uri	String	https://vocab.nerc.ac.uk/collection/P01/current/SNANID01/
attribute	aphia_id	sdn_parameter_urn	String	SDN:P01::SNANID01
attribute	aphia_id	sdn_uom_name	String	Not applicable
attribute	aphia_id	sdn_uom_uri	String	https://vocab.nerc.ac.uk/collection/P06/current/XXXX/
attribute	aphia_id	sdn_uom_urn	String	SDN:P06::XXXX
attribute	aphia_id	standard_name	String	aphia_id
attribute	aphia_id	units	String	Not applicable
attribute	aphia_id	units_uri	String	https://vocab.nerc.ac.uk/collection/P01/current/SNANID01/

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.