Portsdown Explained

Portsdown
Aos:	Hampshire
Interest:	Biological
Area:	69.1ha
Notifydate:	1984
Map:	Magic Map

Portsdown is a 69.1abbr=offNaNabbr=off biological Site of Special Scientific Interest on Portsdown Hill, on the northern outskirts of Portsmouth in Hampshire.^{[1] [2]}

This is a linear south-facing escarpment with a rich chalk grassland flora. The diverse insect fauna includes all the chalk downland butterflies and a population of the largest British bush cricket, Tettigonia viridissima. On the lower slopes, raised beaches indicate former sea levels.^[3]

References

50.854°N -1.092°W

Notes and References

1. Web site: Designated Sites View: Portsdown . Sites of Special Scientific Interest. Natural England. 17 May 2020.
2. Web site: Map of Portsdown. Sites of Special Scientific Interest. Natural England. 17 May 2020.
3. Web site: Portsdown citation. Sites of Special Scientific Interest. Natural England. 17 May 2020.