Keyhaven Marshes
- Created by: Jenny Jones
- Created on: 16-04-14 18:30
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- Keyhaven Marshes, Hampshire
- salt marsh protected from erosion by Hurst Castle Spit
- salt marsh = accumulation of mud and silt. as grows bigger, colonised by salt-tolerant plants
- Species
- Plants
- cordgrass
- pioneer plant, tolerant of salt water
- sea lavender
- found when soil fertility and salinity improves
- cordgrass
- Birds
- oystercatcher
- feeds and nests in salt marshes
- ringed plover
- feeds and nests on saltmarsh
- oystercatcher
- Butterfly
- common blue
- found on higher marshes
- common blue
- Spider
- wold spider
- clings to sumberged stems of cordgrass waiting for low tide and food
- wold spider
- Plants
- Reasons for being under threat
- saltmarsh retreating up to 6m per year
- storms have breached Hurstcastle Spit which protects marsh
- increased number of leisure users: parking, trampling, pollution
- Sustainable approaches to salt marsh management
- rock armour and beach nourishment
- known as a national nature reserve. area carefully monitored and managed
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