Variation in the density and body size of a threatened foundation species across multiple spatial scales
- Publisher:
- Wiley
- Publication Type:
- Journal Article
- Citation:
- Restoration Ecology, 2022, 30, (8)
- Issue Date:
- 2022-11-01
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Population characteristics e g density and body sizes of foundation species can affect their own persistence and provisioning of ecosystem functions Understanding the drivers of population characteristics of foundation species at multiple spatial scales is therefore critical for maximizing ecosystem functions of restored habitats We analyzed variation in population characteristics densities 95th percentile and median lengths of live oysters of the Sydney rock oyster Saccostrea glomerata on remnant oyster reefs at regional scales among three estuaries along an approximately 250 km of coastline in New South Wales Australia We then analyzed how population characteristics were further related to spatial attributes at smaller spatial scales including within patches rugosity distance to patch edge and elevation whole patches size and shape and among patch connectivity within each estuary The densities and body sizes of S glomerata were related to spatial attributes occurring within patch e g elevation whole patch e g shape and landscape i e connectivity scales but these relationships varied among estuaries The greatest variation in oyster density and size occurred at regional scales suggesting that processes acting at larger spatial scales e g water quality and or climate set the context for smaller scale influences on oyster characteristics Our results highlight the potential importance of incorporating site specific spatial attributes in the design of restored oyster reefs to maximize ecosystem services and functions provided by restoration efforts 2022 The Authors Restoration Ecology published by Wiley Periodicals LLC on behalf of Society for Ecological Restoration
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