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NarrativeADW · Wikipediaarticle
Occurrence & distributionGBIF1 078 records
DNA & barcodingBOLD178 specimens
01Narrative
Balsam woolly adelgids (Adelges piceae) are small wingless insects that infest and kill firs, especially balsam fir and Fraser fir. They are an invasive species from Europe introduced to the United States around 1900. Because this species is not native to the United States, the Fraser fir has not evolved any type of defense against it.
No narrative description available for this taxon yet.
A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Adelges piceae has left across the world's sequence archives.
At a glance
DNA specimens178
BINs1
Marker genes1
Countries5
The DNA barcodethe species' typical barcode, built from every sequenced specimen
COI-5P658 bp consensus167 specimens
ACGT
▸ drag or hover over the strip to read any position — letter and how much it varies
Violet ticks below the strip = positions where individuals differ; flat = the species' unchanging signature. 100% of positions are identical in every specimen.
Where individuals differ — all 2 variable positions, in barcode order
Each circle is a barcode variant; bigger = more specimens, colour = region. Lines join the most similar variants and the tick marks count the mutations between them — a tight cluster is one “dialect”, a long line a more divergent lineage. Click a circle to list its actual specimens.
Diversity (π)0.12%
Haplotypes7
BIN1
Most divergent pair0.46%
N.AmericaEurope
Closest relatives by DNA barcode
The species whose COI barcode is most similar to this one — a quick “who is this most like”. The percentage is how much the barcode differs; it approximates, but is not, the full evolutionary tree.
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
★COI-5P
animal barcode
08Occurrence & distribution
Record type1 078 records
Wild obs. + sensor177
Museum / vouchered901
Range
Area of Occupancy AOO1 120 km²
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy9% within 1 km
≤100 m 13≤1 km 2≤10 km 136>10 km 16
167 georeferenced · 10 without coordinates
Open the mapobservation + sensor177
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Coordinate accuracy71% within 1 km
≤100 m 592≤1 km 18≤10 km 218>10 km 34
862 georeferenced · 39 without coordinates
Open the institutions mapphysical evidence901
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
10Collections & institutions
Holding institutions1 of 5 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
New Haven, US
860
WIlocation not on record
8
University of Guelph, Centre for Biodiversity Genomicslocation not on record
4
Catholic University of Pekinglocation not on record
2
Canadian National Collection of Insects, Arachnids and Nematodeslocation not on record
1
5 institutions · 875 of 901 vouchered records shown · 26 without an institution code
WikipediaWikimedia Foundation2 languages↗
Animal Diversity WebUniv. of Michigan MZspecies account↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility1 078 records↗
BOLD SystemsCentre for Biodiversity Genomics178 specimens↗
Open Tree of LifeOpenTreephylogeny backbone↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗