53251b3c-6c79-4aeb-a0de-fc63b9350cc1 English ISO/IEC 8859-1 (also known as Latin 1) dataset dataset NERC EDS Environmental Information Data Centre Lancaster Environment Centre, Library Avenue, Bailrigg Lancaster LA1 4AP UK info@eidc.ac.uk https://eidc.ac.uk/ EIDC website The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences. information pointOfContact 2026-01-09T12:56:53 UK GEMINI 2.3 OSGB 1936 / British National Grid The Isle of May long-term study (IMLOTS) seabird annual return rate 1988-2016 2016-11-01 publication 1988-08-01 creation https://catalogue.ceh.ac.uk/id/53251b3c-6c79-4aeb-a0de-fc63b9350cc1 10.5285/53251b3c-6c79-4aeb-a0de-fc63b9350cc1 doi: Newell, M., Harris, M.P., Wanless, S., Burthe, S., Bogdanova, M., Gunn, C.M., Daunt, F. (2016). The Isle of May long-term study (IMLOTS) seabird annual return rate 1988-2016. NERC Environmental Information Data Centre 10.5285/53251b3c-6c79-4aeb-a0de-fc63b9350cc1 [THIS DATASET HAS BEEN WITHDRAWN]. 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. The Isle of May long-term study (IMLOTS) aims to identify the impact of environmental change on seabirds and their associated ecosystems. Understanding the mechanisms underlying variation in seabird population size requires a thorough knowledge of demographic parameters, namely birth rates, death rates, immigration and emigration. The effects of environmental change are likely to be different according to which demographic parameter or life history stage is being considered. This complexity means that only long-term monitoring, such as that carried out on the Isle of May, will allow us to understand the functioning of bird populations and their responses to environmental change. Full details about this dataset can be found at https://doi.org/10.5285/53251b3c-6c79-4aeb-a0de-fc63b9350cc1 Newell, M. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Harris, M.P. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Wanless, S. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Burthe, S. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Bogdanova, M. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Gunn, C.M. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Daunt, F. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Daunt, F. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk pointOfContact NERC Environmental Information Data Centre info@eidc.ac.uk publisher NERC EDS Environmental Information Data Centre enquiries@ceh.ac.uk custodian UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk owner asNeeded Environmental Monitoring Facilities theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Isle of May GeoNames 2006-01-01 creation Biodiversity Isle of May long-term study (IMLOTS) Atlantic puffin Common guillemot Razorbill European shag Black-legged kittiwake otherRestrictions Superseded otherRestrictions This resource is made available under the terms of the Open Government Licence otherRestrictions © UK Centre for Ecology & Hydrology otherRestrictions If you reuse this data, you should cite: Newell, M., Harris, M.P., Wanless, S., Burthe, S., Bogdanova, M., Gunn, C.M., Daunt, F. (2016). The Isle of May long-term study (IMLOTS) seabird annual return rate 1988-2016. NERC Environmental Information Data Centre https://doi.org/10.5285/53251b3c-6c79-4aeb-a0de-fc63b9350cc1 textTable 1 English utf8 biota 1988-01-01 2016-09-30 -2.569 -2.544 56.179 56.194 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://data-package.ceh.ac.uk/sd/53251b3c-6c79-4aeb-a0de-fc63b9350cc1.zip Supporting information Supporting information available to assist in re-use of this dataset information dataset dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 Data collected by CEH staff. All fieldwork, sampling and data handling was carried out by experienced and trained staff to defined protocols agreed to meet the objectives of the work. All data was collected in the field in notebooks and field data sheets. These were transcribed to spreadsheets after each check was made and files backed up to CEH directories. All notebooks and fieldsheets are archived at CEH Edinburgh. The Isle of May is one of four key UK seabird monitoring sites supported by the JNCC (Joint Nature Conservation Committee). CEH has an on-going contract with JNCC to collect data on seabird demography and diet. The data, including that on annual breeding success, feed into the national Seabird Monitoring Programme network.