Data Zone
The site was identified as internationally important for bird conservation in 2016 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Velvet Scoter Melanitta fusca | VU | non-breeding (2011–2015) | 152–450 birds | A1, C1 |
| Northern Pintail Anas acuta | LC | non-breeding (2011–2015) | 826–1,271 birds | B1i, C3 |
| Horned Grebe Podiceps auritus | VU | non-breeding (2011–2015) | 77–103 birds | A1, C1, C6 |
| Horned Grebe Podiceps auritus | VU | winter (2011–2015) | 22 birds | B2 |
| Common Loon Gavia immer | LC | non-breeding (2011–2015) | 3–5 birds | C6 |
| Eurasian Oystercatcher Haematopus ostralegus | NT | winter (2011–2015) | 2,475 birds | B2 |
| Common Ringed Plover Charadrius hiaticula | LC | breeding (2011–2015) | 16–19 pairs | B3 |
| Common Ringed Plover Charadrius hiaticula | LC | winter (2011–2015) | 37 birds | B3 |
| Kentish Plover Charadrius alexandrinus | LC | non-breeding (2011–2015) | 12–31 birds | C6 |
| Little Tern Sternula albifrons | LC | breeding (2011–2015) | 98–178 pairs | B1i, C6 |
| A4iii Species group - waterbirds | n/a | winter (1993–1995) | min 20,000 birds | A4iii, C4 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2016. The most recent assessment (2018) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2018 | not assessed | very high | medium |
| Whole site assessed? | State assessed by | Accuracy of information | |
| no | unset | medium | |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Human intrusions and disturbance | happening now | whole of population/area (>90%) | moderate decline (10–30% over 3 generations) | very high |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Whole area (>90%) covered by appropriate conservation designation | A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species | Some limited conservation initiatives are in place | medium |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 2008 | Voordelta | Natuurbeschermingswet (IV) | 100 |
| 2009 | Voordelta | Marine Protected Area (OSPAR) (UA) | 95 |
| 2009 | Vlakte van de Raan | Marine Protected Area (OSPAR) (UA) | 4 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Marine Neritic | 96 |
| Land use | % of IBA |
|---|---|
| fisheries/aquaculture | 96 |
| military | 30 |
| tourism/recreation | 22 |
| urban/industrial/transport | 5 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Delta Coast (Netherlands). Downloaded from
https://datazone.birdlife.org/site/factsheet/delta-coast-iba-netherlands on 23/12/2024.