Summary for Oxyopes heterophthalmus (Araneae)

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National Distribution

 
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Oxyopes heterophthalmus with eggsac Copyright: Peter Harvey
Identification difficulty rating: 3
Name: Oxyopes heterophthalmus
Authority: Latreille, 1804
Order: Arachnida: Araneae
Family: Oxyopidae
National Rarity status: NR
IUCN status: VU, criteria: D2

Records: 134
First Record: 1855
Latest Record: 2014

1992-on hectads: 5
Pre-1992 hectads: 9
Total hectads: 9

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About this species

Recorded altitude range
42m to 120m

Species text

Distribution
The species is found on a number of heathland sites in Surrey. There are old records (1858 1909 and 1910) from the New Forest near Lyndhurst and Brockenhurst, South Hampshire. It is widespread in central and southern Europe.

Habitat and ecology
Oxyopes is found on mature dry heathland, usually near the top of heather and seemingly with a preference for south-facing slopes. Adults occur in late May and June.

Status
The spider is abundant on a few small heathland areas in west Surrey. Denton (1999d) comments on its local abundance on north Surrey Tertiary heaths, but its rarity on the Lower Greensand heaths to the south. The species has not been found in the New Forest for over ninety years.

Threats
Fire and loss of heathland habitat. Because of the increased fire risk that mature heather presents, heaths are often managed to avoid this phase, even on nature reserves. However, at Chobham Common, lack of management has resulted in birch and pine invasion. Accidental fires are also too frequent an occurrence on parts of this common, causing replacement of heath by Molinia caerulea. In parts of the New Forest, grazing by livestock prevents the heather developing into tall mature plants, but there are still areas of apparently suitable structure.

Management and conservation
Management: needs to be geared to ensuring good representation of heather in the mature phase. Thus, if burning is to be used, small portions of the site should be treated in rotation on a cycle of about twenty years. If grazing is the favoured option, it should be at a low intensity and rotational.

Text based on Dawson, I.K., Harvey, P.R., Merrett, P. & Russell-Smith, A.R. (in prep.).  References

Adult Season

Adult Season Data (based on 13 records with adult season information)


Habitats

background methodology

Broad Habitat Data (based on 14 records with habitat information)

no subhabitat data available

Structural Habitat Data (based on 6 records with structural habitat information)

Habitat Detail and Method (based on 20 records with habitat detail and method information)

Recorded management for locations with Oxyopes heterophthalmus

Recorded substrate and hydrology for locations with Oxyopes heterophthalmus

Images

Lynx spider female with scale
Lynx spider female with scale
Oxyopes heterophthalmus adult male
Oxyopes heterophthalmus adult male
Oxyopes heterophthalmus adult female
Oxyopes heterophthalmus adult female
Oxyopes heterophthalmus with eggsac
Oxyopes heterophthalmus with eggsac
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