Species Details
- Species name
- Jacksonella falconeri (Jackson, 1908)
- Taxonomy
- Animalia :: Araneae :: Linyphiidae
- short sward & bare ground
Distribution
The species has a patchy and scattered distribution in Britain, but is absent from large areas. It has been recorded from most of the countries in north-western and central Europe.Habitat and ecology
In southern England J. falconeri is found in open, stony areas on heathland and in the top layers of soil. It has also been found on calcareous grassland, in pine needles and under stones. Adults occur in spring and autumn.Status
The species appears to be uncommon and to have shown a steep decline in the past 20 years. However it is so small that it is unlikely to be caught except in pitfall traps, and even then it is hard to spot.Threats
Loss of heathland and calacreous grassland to agricultural and urban development. Scrubbing over of heathland and calcareous grassland.Management and conservation
Prevent loss of heathland and calcareous grassland. Ensure that scrub invasion in these habitats is controlled. Text based on Dawson, I.K., Harvey, P.R., Merrett, P. & Russell-Smith, A.R. (in prep.).Stats
- First recorded
- 1900
- Last recorded
- 2020
- Total records
- 202
- Total visits
- 199
Conservation status
Jacksonella falconeri
| Source | Reporting category | Designation | Date designated | Comments |
|---|---|---|---|---|
| A Review of the scarce and threatened spiders (Araneae) of Great Britain: Species Status No. 22 (Sep 2017) | Red data categories - spiders (not based on IUCN criteria) | Spider Amber List | 01/09/2017 | |
| A Review of the scarce and threatened spiders (Araneae) of Great Britain: Species Status No. 22 (Sep 2017) | Red listing based on 2001 IUCN guidelines | Least concern | 01/09/2017 | Appears to have shown a steep decline but it is so small that it is unlikely to be caught except in pitfall traps, and even then it is hard to spot. It is presumably under-recorded as a result, and there are no direct threats to the wide range of habitats it occupies, such that it is not currenty regarded as threatened. Threats: Loss of heathland and calacreous grassland to agricultural and urban development. Scrubbing over of heathland and calcareous grassland. |
| A Review of the scarce and threatened spiders (Araneae) of Great Britain: Species Status No. 22 (Sep 2017) | Rare and scarce species | Nationally Scarce. Includes Red Listed taxa | 01/09/2017 | Threats: Loss of heathland and calacreous grassland to agricultural and urban development. Scrubbing over of heathland and calcareous grassland. |
Photos and media
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Spatial distribution - hectad map
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Thresholds:
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Rejected records are excluded from this map. Unverified records are included.
Temporal distribution - records by year
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Temporal distribution - records by week
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