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Data resource: Waterway Survey

Numbers of Daubenton's bat passes counted with the aid of a bat detector along a 1km stretch of waterway in August. Species presence records from this survey are included in this dataset. GB data are from BCT's National Bat Monitoring Programme core-funded by the Joint Nature Conservation Committee. Northern Ireland records are from the All-Ireland Waterway Survey run by Bat Conservation Ireland and funded in NI by the Northern Ireland Environment Agency.

Data resource: Waxcap based on cofnod list 2

Data resource: WDC Lewis survey data

Data collected off NE Lewis during on-effort, vessel-based WDC surveys in 2018-2020

Data resource: WDC Shorewatch Sightings

The WDC Shorewatch Programme supports volunteer citizen scientists to monitor the presence and absence of coastal cetaceans over time by conducting effort-based watches from shore at specified local sites around Scotland. Volunteers have been carrying out Shorewatches from the Scottish Dolphin Centre in Spey Bay since 2005, and consistently from sites around the wider Moray Firth since 2010. *Note that effort-based Shorewatch was not conducted between mid-March 2020 and late April 2021 due to the Covid-19 pandemic.

Data resource: Wear

Data resource: Wear_invasives

Data resource: Wear_invasives

Data resource: Weevil and Bark Beetle records via iRecord

This dataset contains all weevil and bark beetle records available via iRecord - these records may originate from direct addition of records to iRecord, or via other datasets that have been made available via iRecord for verification purposes. Some of the records are unverified and this needs to be taken into account in any use of this data.

Data resource: Welsh BSBI data (ex-VPDB dataset) at hectad resolution

Data resource: Welsh Invertebrate Database (WID)

The purpose of this data capture was to understand the distribution of species in Wales in order to inform conservation decisions. Collation of around 500,000 invertebrate occurrence records, most of which relate to Wales. This is the primary database used by Natural Resources Wales; incorporates other major invertebrate datasets. Includes terrestrial, freshwater and coastal airbreathing invertebrates but not marine species. The database also contains records of associated taxa and incidental records of other species, including alga, vascular plants, amphibians, mammals, birds, fungi, reptiles and bryophytes. Records have been derived from a wide variety of sources, including publications, records provided by schemes and societies, records created by Countryside Council for Wales and Natural Resources Wales staff as part of their normal work, records provided by amateur recorders, other inventories, results from structured surveys or monitoring projects etc. There are over 5,000 different recorders listed in the database. This dataset superseded the UK Invertebrate Site Register (UK ISR) in 1991/2, however, UK ISR data for Wales was incorporated into, and used as a basis for the WID. Other significant surveys which have been incorporated into the WID include Welsh Peatland Invertebrate Survey (WPIS) and the Welsh Parkland Invertebrate Survey amongst others. Significant subsets have been derived from WID for specific purposes e.g. Welsh Marsh Fritillaries, UK Biodiversity Action Plan (BAP) invertebrate data for Wales, Invertebrates on National Nature Reserves. Data accuracy is reliant on original sources. However, data has been transcribed by experienced invertebrate biologists in order to research incomplete records and minimise errors. Any uncertainties about a particular record, are noted in the database, and removed from the published records on the NBN Atlas. The database is constantly updated, and updated biannually on the NBN Atlas. Any records where there is not enough information to be fully verified are identified and these are not disseminated to external sources.

Data resource: West Coast Scotland IPA - Crit A Bryophytes

List of Criterion A bryophyte species for which sites are included within the WCS IPA.

Data resource: West Lothian Council - Consultancy Data

Data generated by assorted consultants working for WLC

Data resource: West Lothian Council - Phase 1 survey

Records of species recorded in target notes from Phase 1 survey.

Data resource: West Lothian Council - Ranger recording

Records collated by the WLC Rangers.

Data resource: West Wales Online Records

All species records submitted to West Wales Biodiversity Information Centre on their online recording system for Carmarthenshire, Ceredigion and Pembrokeshire, excluding records that have already been uploaded by WWBIC to the NBN Atlas in other datasets. Please contact the dataset administrator if more information is required

Data resource: Wetland (Experimental)

Data resource: WFD UKTAG 2015 Alien Species Alarm list

Data resource: WFD UKTAG 2015 Aquatic Alien Species for Ireland

Data resource: WFD UKTAG Alarm species

Data resource: WFD UKTAG aquatic alien species impact

Species listed in the 2015 UKTAG Classification of Alien Species working paper. The United Kingdom Technical Advisory Group (UKTAG) was established to provide coordinated advice on technical aspects of the implementation of the Water Framework Directive (WFD) in the UK. Part of the role of the UKTAG is to help assess the risk of water bodies failing to achieve the WFD's environmental objectives. The UKTAG consider that non-native species are one of the significant pressures that could result in a water body failing to meet environmental objectives (such as failing to achieve good ecological status). The UK TAG Alien Species Group (ASG) is a technical sub-group that provides scientific advice to the Water Framework Directive UK Technical Advisory Group. The ASG uses scientific evidence to decide how an invasive non-native species should be categorised in relation to the potential level of adverse impact and risk it poses to the water environment; economic considerations or other issues are not taken into account at this stage. Species are assessed to be of high, low, or unknown impact and this listing is then incorporated into guidance for the implementation of the Water Framework Directive (WFD).