Critical component There is a diversity The areal extent of Based on aerial Low: and process: and range of Ramsar wetland photograph Limited confidence Ramsar wetland types does not interpretation and Geomorphology in estimates of types which are change by ±20%, geomorphological and hydrology areal extent. defined by their i.e. mapping by Critical service: Limited data on geomorphology Mowling (2007). estuarine changes to Natural or and hydrology. waters (F) ± geomorphology, wetland There is an 20% from 200 hydrology and ecosystem absence of hectares vegetation types information since time of intertidal relating to the listing (refer to marshes (H) ± variability in Chapter 7 of ECD). 20% from 44 extent and types hectares of wetland around coastal the time of listing brackish/saline lagoons (J and K) ± 20% from 375 hectares intertidal mud sand or salt flats (G) ± 20% from 55 hectares. Critical component Hydrology as a As above, this LAC As above As above and process: critical component is linked to the and service is geomorphology of Hydrology linked to the the wetland. Critical service: geomorphology of Natural or the wetland. wetland ecosystem
Critical component and process: Geomorphology and hydrology Critical service: Natural or wetland ecosystem There is a diversity and range of Ramsar wetland types which are defined by their geomorphology and hydrology. There is an absence of information relating to the variability in extent and types of wetland around the time of listing The areal extent of Ramsar wetland types does not change by ±20%, i.e. estuarine waters (F) ± 20% from 200 hectares intertidal marshes (H) ± 20% from 44 hectares coastal brackish/saline lagoons (J and K) ± 20% from 375 hectares intertidal mud sand or salt flats (G) ± 20% from 55 hectares. Based on aerial photograph interpretation and geomorphological mapping by Mowling (2007). Low: Limited confidence in estimates of areal extent. Limited data on changes to geomorphology, hydrology and vegetation types since time of listing (refer to Chapter 7 of ECD). Critical component and process: Hydrology Critical service: Natural or wetland ecosystem Hydrology as a critical component and service is linked to the geomorphology of the wetland. As above, this LAC is linked to the geomorphology of the wetland. As above As above