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The gathering and application of invertebrate data PowerPoint PPT Presentation


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The gathering and application of invertebrate data. Brian Nelson, National Museums Northern Ireland. Gathering. Most recorders work in their spare time Majority of records gathered by a few recorders Increasing (?) number of naturalists, more inclined to record challenging groups

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The gathering and application of invertebrate data

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The gathering and application of invertebrate data

The gathering and application of invertebrate data

Brian Nelson, National Museums Northern Ireland


Gathering

Gathering

  • Most recorders work in their spare time

  • Majority of records gathered by a few recorders

  • Increasing (?) number of naturalists, more inclined to record challenging groups

  • Increased availability of keys and field guides, web-based resources

  • Large datasets more easily stored and analysed on home computers


Gathering often a solitary activity

Gathering: often a solitary activity….


But can be communal

….. but can be communal.


What to do with records

What to do with records?

  • You could do nothing – but what is the point?

  • Get them verified, become trusted

  • Publish records yourself or contribute them to a recording scheme

  • Today’s option - send to a records centre

  • Leave critical vouchers in a museum – very important!!


Application

Application

  • Production of atlases

  • Site protection

  • Species protection

  • Red data lists

  • Monitoring

  • Enthusing

  • Analysis of trends e.g. response to climate and habitat change


Dragonflyireland the mapping of ireland in four years

DragonflyIreland - the mapping of Ireland in four years


The gathering and application of invertebrate data

Aims

  • Map the distribution of all Irish species

  • Compare with previous surveys

  • Document habitat, species assemblages and important sites

  • Encourage recording

  • End product - atlas and handbook


Coverage

1970-1999

Pre 1970

2000-2003

Coverage


The gathering and application of invertebrate data

Recording effort


The gathering and application of invertebrate data

2000-2003

1980-1999


The gathering and application of invertebrate data

Recording effort


Publishing and dissemination of records

Publishing and dissemination of records

  • Long tradition of atlases of Britain and Ireland

  • Ireland often poorly covered in maps and text

  • Trend for Ireland-only atlases being produced

  • Online access with full data – NBN and NBDC


Distribution map of irish bluet coenagrion lunulatum on nbdc site

Distribution map of Irish BluetCoenagrionlunulatum on NBDC site


Training

Training


Water beetles of ireland

Water beetles of Ireland


The gathering and application of invertebrate data

Progress: number of water beetle records per decade


Water beetle threat categories

Water beetle threat categories


The gathering and application of invertebrate data

Dragonfly species richness


Nationally l and regionally r important dragonfly sites

Nationally (l) and regionally (r) important dragonfly sites


The gathering and application of invertebrate data

Emergence pattern


Ireland only insects

Ireland-only Insects

  • 1 Odonata - damselfly

  • 2 Hymenoptera - bee/ant/wasp

  • 3 Trichoptera - caddisfly

  • 5 Hemiptera - bugs/aphids/froghoppers

  • 5 Lepidoptera - butterflies/moths

  • 11 Coleoptera - beetles

  • 21 Diptera - two-winged flies


Irish bluet coenagrion lunulatum

Irish Bluet Coenagrion lunulatum

  • Main distribution Ireland, Netherlands, Finland, probably Russia, Mongolia

  • Northern temperate species mesotrophic ponds


Sigara fallenoidea

Sigara fallenoidea

  • Awater boatman. Large Irish lakes.

  • Relict species in Northern Hemisphere


The gathering and application of invertebrate data

Sigara fallenoidea


Sigara fallenoidea pohjanpikkumalluainen

Sigara fallenoideaPohjanpikkumalluainen


Limnoporus rufoscutellatus

Limnoporus rufoscutellatus

  • A large pondskater. Widespread in central and northern Europe

  • Occurs at very low densites, 1000 other gerrids to 1 of this species.


Gyrinus natator the shady whirligig

Gyrinus natatorThe Shady Whirligig

  • the commonest whirligig?

  • last record in GB 1921

  • shady peat cuttings and lake edges

  • presumably at threat from sites becoming overgrown as in Cumbria


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