© OpenStreetMap contributors
- Add External Layer
- Upload Shapefile
- Layer Tutorial
- Close
Use the checkbox () to show or hide a layer.
Use the radio buttons () to select a layer to use with the identify function.
- Layers
- Opacity
Available layers
(ctrl+c)
Search for marine data across UK organisations
- API
- How-To
- About
- Contact MEDIN
- Share
Metadata: 2007, COWRIE, Further use of aerial surveys to detect bird displacement by offshore wind farms
Abstract:
This report follows a previous report commissioned by COWRIE (Maclean et al. 2006), in which the extent to which BERR (formally DTI) aerial survey protocol allows changes in bird number to be detected, was examined using power analysis. Changes in bird numbers can be hard to detect due to natural fluctuations in bird numbers. Power analysis allows a statistical assessment to be made of the probability that such changes could be distinguished from background fluctuations. Similar conclusions are drawn in this report compared with the previous displacement report. The statistical power of being able to detect changes in bird numbers is lower than desirable. This is primarily because there are large inter-annual fluctuations in numbers.
Data holder:
The Crown Estate
| Other details | ||
| Internal code | Internally assigned metadata identifier | 4626 |
| Title | The title is used to provide a brief and precise description of the dataset such as 'Date', 'Originating organisation/programme', 'Location' and 'Type of survey'. All acronyms and abbreviations should be reproduced in full. | 2007, COWRIE, Further use of aerial surveys to detect bird displacement by offshore wind farms |
| File Identifier | The File Identifier is a code, preferably a GUID, that is globally unique and remains with the same metadata record even if the record is edited or transferred between portals or tools. | 40ca3a923c77565c8969129c397a5209 |
| Resource Identifier | This is the code assigned by the data owner. | 3225 |
| Resource type | The resource type will likely be a dataset but could also be a series (collection of datasets with a common specification) or a service. | series |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 2026-04-19 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2026-04-19 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | inapplicable |
| Frequency of updates | This describes the frequency with which the resource is modified or updated i.e. a monitoring programme that samples once per year has a frequency that is described as 'annually'. | notPlanned |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | This report follows a previous report commissioned by COWRIE (Maclean et al. 2006), in which the extent to which BERR (formally DTI) aerial survey protocol allows changes in bird number to be detected, was examined using power analysis. Changes in bird numbers can be hard to detect due to natural fluctuations in bird numbers. Power analysis allows a statistical assessment to be made of the probability that such changes could be distinguished from background fluctuations. Similar conclusions are drawn in this report compared with the previous displacement report. The statistical power of being able to detect changes in bird numbers is lower than desirable. This is primarily because there are large inter-annual fluctuations in numbers. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | We selected four taxa for analysis: red-throated diver, common scoter, black-backed gulls and sandwich tern. As the majority of the divers are unidentifeid to species level during aerial surveys we added a proportion of positively identified red-throated diver relative to the other identified diver species. The vast majority of scoter species were recorded as common scoter, presumably because although this spcies can be difficult to distinguish from other scoter species from the air, the areas surveyed are known to contain only small numbers of velvet scoter (Melanitta fusca). Thus addition unidentified scoters were not added to common scoter count, although in relality the numbers of these are such that doing so would not have made any appreciable difference. |
| Additional information | This describes relevant references to the data e.g. reports, articles, websites plus other useful information not captured elsewhere. | Origin: BTO and DHI |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Research | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Research and Development Activity | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bird counts | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bird taxonomy-related abundance per unit area of surface | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bird behaviour | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 60.767202863875 |
| East | The eastern-most limit of the data resource in decimal degrees | 2.68743327034 |
| South | The southern-most limit of the data resource in decimal degrees | 49.039998103786 |
| West | The western-most limit of the data resource in decimal degrees | -9.3331285579078 |
| Responsible organisations | ||
| Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
| Organisation name | BTO | |
| Position name | Ilya M.D Maclean and Mark M. Rehfisch | |
| Delivery point | The Nunnery, Thetford, Norfolk, IP24 2PU | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | British Trust for Ornithology | |
| Individual name | Ilya M.D Maclean and Mark M. Rehfisch | |
| Phone | +44 (0)1842 750050 | |
| Fax | +44 (0)1842 750030 | |
| Delivery point | The Nunnery, Thetford, | |
| ilya.maclean@bto.org | ||
| URL | bto.org | |
| Role | The custodian is the person or organisation that accepts responsibility for the resource and ensures appropriate care and maintenance. If a dataset has been lodged with a Data Archive Centre for maintenance then this organisation is be entered here. | custodian |
| Organisation name | The Crown Estate | |
| Phone | +44 020 7851 5000 | |
| Delivery point | 16 New Burlington Place | |
| Postal code | W1S 2HX | |
| City | London | |
| Country | United Kingdom | |
| enquiries@thecrownestate.co.uk | ||
| URL | http://www.thecrownestate.co.uk | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | DHI Water Environment Health | |
| Individual name | Henrik Skov | |
| Delivery point | Agern Alle 11 | |
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk/details/260/summary |
| Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk | |
| Dataset constraints | ||
| 21 Conditions for Access and Use - Use limitation | This states any constraints on use of the data. Multiple conditions can be recorded for different parts of the data resource. If no conditions apply, then `No condtions apply` is recorded. This uses free text. | no conditions apply |
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | |
| Version info | ||
| Date of publication | The publication date of the resource or if previously unpublished the date that the resource was made publicly available via the MEDIN network. | 2007-10-01 |
| Date of creation | The date that the resource was created. | 2007-01-01 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-19 |
| Metadata date | The date when the content of this metadata record was last updated. | 2009-05-07 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery Metadata Standard |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | Version 2.3.5 |