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Targets -
Dolomedes plantarius (Fen Raft Spider)
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These are the revised targets for the plan published in 2006.
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T1
Increase the overall range of the fen raft spider at Redgrave & Lopham Fen to 13 Ha of habitat occupied 3 years in 5 by 2010 and to 65 Ha by 2020.
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Target type |
Range |
Units |
Hectares |
Target values (2005 values represent the baselines)
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Country |
2005 |
2010 |
2015 |
2020 |
2030 |
UK |
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13 |
30 |
65 |
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E |
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13 |
40 |
65 |
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NI |
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S |
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W |
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Additional information |
This target will be implemented through regular liaison over site management. |
Monitoring information |
Monitoring to be achieved through annual population estimates. |
T2
There should be no overall decrease in occupied range of fen raft spider at Pevensey Levels from that recorded in 1990 at any time.
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Target type |
Range |
Units |
Occupied 1 km squares |
Target values (2005 values represent the baselines)
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Country |
2005 |
2010 |
2015 |
2020 |
2030 |
UK |
9 |
9 |
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E |
9 |
9 |
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NI |
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S |
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W |
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Additional information |
This target will be implemented through regular liaison over site management. |
Monitoring information |
Monitored by assessing all populations every 3 years. |
T3
The number of sites with sustainable populations of fen raft spider should be increased by six by 2010. By 2020 the total number of sites with sustainable populations should be increased to 12.
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Target type |
Range |
Units |
Site(s) / population(s) |
Target values (2005 values represent the baselines)
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Country |
2005 |
2010 |
2015 |
2020 |
2030 |
UK |
4 |
6 |
8 |
12 |
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E |
2 |
4 |
5 |
8 |
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NI |
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S |
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W |
2 |
2 |
3 |
4 |
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Additional information |
Target areas to be identified (include Norfolk Broads, Pevensey levels) |
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