Arolwg o ffawna infertebrat Chwarel Marford yn 2018, gan ganolbwyntio'n benodol ar golynogion (gwenyn, gwenyn meirch a morgrug).
Following management work at Marford Quarry to increase the extent of bare sand habitat for psammophilic insects, a survey undertaken in 2018 recorded 118 species of aculeate bees, wasps and ants, including 35 species new to the site.
The cumulative aculeate species list now stands at 171 species, comprising 81 bees, 80 wasps and 10 ants, making Marford Quarry one of the most important sites in Wales for this taxonomic group. The survey also recorded four new psammophilic aculeates (Anoplius infuscatus, Arachnospila wesmaeli, Coelioxys conoidea and Coelioxys inermis) and the psammophilic ground beetle Harpalus tardus at its only known inland locality in Wales. The overall site total now stands at 31 psammophilic species, including 26 aculeates, two beetles and three flies.
Six new deadwood-nesting aculeates were recorded: Ancistrocerus gazella, Ancistrocerus scoticus, Megachile ligniseca, Psenulus pallipes, Stigmus solskyi and the Hornet (Vespa crabro). This brings the cumulative deadwood assemblage total to 43 species, comprising 42 aculeates and one beetle.
Both the psammophilic assemblage and the deadwood assemblage are considered to be in favourable condition. However, there is an urgent need to provide additional deadwood habitat, which is currently limited. It is also important to maintain early-successional sandy habitats through a programme of regular excavation and habitat management.
The discovery of the solitary wasp Gorytes laticinctus at Marford Quarry is arguably the most significant finding of the 2018 survey, given its UK distribution and the substantial range extension it represents. Other notable records include the tachinid flies Freraea gagatea (new to Wales), Gymnosoma rotundatum and Wagneria gagatea (both recorded at only their second Welsh localities), and Leucostoma simplex (new to north Wales); the Alder Leaf Beetle (Agelastica alni), otherwise known in Wales only from Fagl Lane Quarry; and the parasitic wasps Sphecophaga vesparum and Haltichella rufipes, both of which were recorded in Wales for the first time.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS122469
- Laith Metadata
- English
- Datganiad
-
Survey techniques included visual searches, sweep netting and pitfall trapping.
- Gwybodaeth ychwanegol
-
Formstone, J.B. 2019. A survey of the invertebrate fauna of Marford Quarry in 2018, with a particular focus on aculeates (bees, wasps and ants). NRW Evidence Report No: 328, 46pp. Natural Resources Wales, Bangor.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2019-10-01
Ystod amser
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- 2018-03-01
- Dyddiad gorffen
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Species records: Recorder 6
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Report as pdf format
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This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
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Survey techniques included visual searches, sweep netting and pitfall trapping.
Allweddeiriau
Allweddair
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Allweddair
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NRW Thesaurus
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- Aculeate bees, wasps & ants
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- Sand Quarry invertebrates
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IPSV Subjects List
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System Cyfeirio Gofodol
Cynnwys
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Cyfarwyddeb Cyfyngiadau Mynediad
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Testun cyfyngiadau mynediad
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This data is jointly owned by NRW and North Wales Wildlife Trust. There are no access restrictions on this data. NRW may release, publish or disseminate it freely
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
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© CNC/NRW and North Wales Wildlife Trust. Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
Datganiad Priodoli
- Cyfyngiadau eraill
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© CNC/NRW and North Wales Wildlife Trust.
Math o Drwydded
- Cyfyngiadau eraill
- Open Government Licence
Metadata
Metadata
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- 2026-09-29T15:25:36.904Z
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