The Biodiversity Wetland map layers can’t be relied on to determine wetland presence/absence or extent with certainty given they are an incomplete data set, wetlands have been mapped with varying accuracy and reflect a snapshot in time and wetland extent can vary over time. We strongly recommend getting qualified advice on the presence and extent of wetlands if there is any uncertainty.Layers in this Wetland Dataset:Top 150 - Details the locations of the 'Top 150' (although there are more polygons, due to multipart polygons and additions) most important wetlands in Northland as at August 2018. (Wildlands)Heathlands - Dataset of known pakihi and gumlands in Northland. This dataset is not complete, but features all known locations as at August 2018. This was an original NRC dataset that was added to during the Wildlands Heathland project. (NRC and Wildlands)Saltmarsh and Mangrove Area - Saltmarsh and Mangrove cover in Northland.Known Wetlands - Master dataset of the known, mapped wetlands in Northland as at August 2018. This dataset is not complete, but features all known wetlands mapped at varying levels of accuracy. The dataset was put together from a variety of sources including the top 150 wetlands from wildlands, ground truthing and analysis of soil type and aerial imagery. (DOC and NRC)
