Ecological restoration of Wairio Wetland, Lake Wairarapa The response of native wetland vegetation to eutrophication and re-vegitation management strategies. Abstract: Aprille Gillon. Wetlands are highly productive ecosystems that support abundant native fauna and flora and provide many essential functions and services, for example, water purification, erosion stabilisation, floodwater storage, groundwater recharge, peat accumulation and biogeochemical cycling. …