Parent Layer: BCR12 Biodiversity Atlas

Name: BCR12 HVWetland

Display Field: Site

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This layer aggregates potential high conservation value wetland per 5 ha hexagon in the Boreal Hardwood Transition Ecozone, also known as BCR 12. It is one of three high value habitat datasets derived from the CWS-ON Landscape Conservation Atlas and Plan (COLCAP). COLCAP is a comprehensive landscape assessment in BCR 12 and 13 that describes and assesses the CWS landscape biodiversity portfolio.In the COLCAP, wetland includes bog, fen, marsh, swamp and open water. Data was extracted from the Southern Ontario Land Resource Information System v 2.0 (OMNRF, 2015), Wetland Unit (OMNRF, 2014), Great Lakes Coastal Wetland Inventory (ECCC and OMNRF, 2004) and the Provincial Land Cover 28 (OMNRF, 1998).Using the How Much Habitat is Enough? guidelines, each study unit (5 ha hexagon) containing wetland was assessed and scored by the following criteria: percent of wetland cover in the quaternary watershed, location of coastal features, adjacent natural cover, size, and proximity. These criteria were added together to calculate overall wetland score within each study unit; this overall wetland score was divided into quartiles and the top 25% of scores were categorized as having potential high conservation value (PHCV).Species at risk (SAR) were assessed and scored by the following criteria: diversity, SAR richness, SAR irreplaceability, global rarity, candidate SAR, and probability of critical habitat. These criteria were added together to calculate an overall SAR score within each study unit; this overall SAR score was divided into quartiles and the top 25% of SAR scores within wetlands were categorized as having PHCV.Migratory bird criteria relevant to wetland (waterfowl stopover + waterfowl density) were added together to calculate an overall migratory bird score within each study unit; this overall migratory bird score was divided into quartiles and the top 25% of scores were categorized as having PHCV.Using these three criteria (overall wetland score, SAR score and migratory bird score), each study unit was assigned a final PHCV score (0-3). A final PHCV score of 0 indicated that while the study unit may contain wetland, it was not within the top 25% of overall wetland scores. Study units with a final PHCV score greater than 0 were aggregated together at 750 m to derive High Value Habitat: Wetland.Secondary Site - Wetland = less than 20 ha in size; Biodiversity Site - Wetland = greater than 20 ha in size.

Copyright Text: Environment and Climate Change Canada - Canadian Wildlife Service, Ontario, in partnership with the Nature Conservancy of Canada, 2016.

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Spatial Reference: 102100  (3857)  LatestVCSWkid(0)

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Label: High Value Forest
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