The Isle of May long-term study (IMLOTS) seabird annual return rate 1988-2021

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Environmental Information Data Centre
Last updated:
29 June 2024
Topic:
Not added
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Summary

This dataset contains calculated return rates for five seabird species from representative colonies on the Isle of May, off the East coast of Scotland. Annual return rates are measured as the number of individually colour marked individuals seen in any one year that were also observed in the previous year for the Atlantic puffin (Fratercula arctica), common guillemot (Uria aalge), razorbill (Alca torda), European shag (Phalacrocorax aristotelis) and black-legged kittiwake (Rissa tridactyla). Not every individual is seen in any one year and the data set does not take into account those missed in any previous years hence these data are not to be treated as survival estimates. In the dataset, each year is represented by a single row of data, there are five columns showing the calculated return rates for each species (indicated by its common name and suffixed 'RR'). The figure quoted in any row is the proportion of marked birds which are observed by the end of the stated breeding season. Each row also contains the number of individuals seen in that year and the number seen in the previous year, taking into account new individuals which are marked. Full details about this dataset can be found at https://doi.org/10.5285/1624fe45-0deb-4bcd-9f13-75578693aaae

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Supporting information ZIP 29 June 2024 Not available
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Added to data.gov.uk
2024-02-27
Access contraints
If you reuse this data, you should cite: Newell, M.A., Harris, M.P., Wanless, S., Burthe, S., Bogdanova, M., Gunn, C.M., Daunt, F. (2022). The Isle of May long-term study (IMLOTS) seabird annual return rate 1988-2021. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/1624fe45-0deb-4bcd-9f13-75578693aaae
Harvest GUID
1624fe45-0deb-4bcd-9f13-75578693aaae
Extent
Latitude: 56.206° to °
Longitude: -2.597° to -2.517°
Spatial reference system
Dataset reference date
2022-09-21 (publication)
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(author, pointOfContact, custodian, publisher, owner)
ISO 19139 resource type
dataset
Metadata language
eng
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