Herring Gulls Decadal Nest Count Survey and Contaminants Study
Herring gulls are piscivorous and occupy a high trophic level, thus they can accumulate contaminant concentrations attoxic effect levels. Data provided here is part of a larger Great Lakes-wide study that has taken place over four decades. Nest counts and contaminants data for Fighting Island (Detroit River) and Middle Island (Lake Erie) are available. Species include: herring gulls, ring-billed gulls, common tern, black-crowned night-herons. Surveys are on-going, but the gulls have not returned to the Detroit River system since the year 2007.
Basic view
Metadata Record Information
- File Identifier
- b052e5ff-2b0a-4618-8021-9b6a5671c8c5 XML
- Date Stamp
- 2022-01-06T14:46:46
- Metadata language
-
eng; CAN
- Character set
- UTF8
- Hierarchy Level
- Dataset
http://ec.gc.ca
Data identification
- Date (Creation)
- 1987-01-01
- Date (Publication)
- 2015-12-30
- Status
- On going
- Metadata language
-
eng; CAN
- Character set
- UTF8
- Topic category
-
- Biota
- Maintenance and Update Frequency
- As needed
- Spatial representation type
- Vector
Keywords
- Theme
-
-
Great Lakes, Area of Concern, populations, Huron-Erie Corridor, gulls, decadal, bioaccumulation, mercury, Hughes, Martin, Weseloh, Moore, Herbert, de Solla, Braune, McGoldrick
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-
Government of Canada Core Subject Thesaurus
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-
Population
-
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ECCC Information Category EN
-
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Nature and Biodiversity - Contaminants
-
-
Business Functions
-
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Designate and Manage Areas of Interest or Concern
-
Oversee and Manage Site Conditions
-
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Geography
-
-
Water - Drainage regions - Great Lakes
-
-
external.theme.EC_Branch
-
-
Strategic Policy Branch
-
Regional Directors General Offices
-
-
external.theme.EC_Directorate
-
-
Ontario Region
-
Wildlife and Landscape Science
-
-
external.theme.GC_Security_Level
-
-
Unclassified
-
- Use Limitation
-
Open Government Licence - Canada ( http://open.canada.ca/en/open-government-licence-canada )
- Access Constraints
- License
- Use Constraints
- License
- Begin Date
- 1974-01-01
- End Date
- 2016-01-01
Extent
))
Ref. system Reference Systems
- Reference system identifier
- EPSG / EPSG:4326 /
Distribution
Distribution Formats
- Distribution format
-
-
XLS
(
2015
)
-
XLS
(
2015
)
http://ec.gc.ca
Overviews

))
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