Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
NarrativeWikipediaarticle
Traits & measurements4 literature sources34 traits
Occurrence & distributionGBIF · OBIS · PBDB3 279 325 records
DNA & barcodingBOLD12 specimens
Genome at a glanceGoaT · NCBI≈1.2 Gbp
Deep timePBDB18 fossils
01Narrative
The ring-necked duck (Aythya collaris) is a diving duck from North America commonly found in freshwater ponds and lakes. The scientific name is derived from Greek , an unidentified seabird mentioned by authors including Hesychius and Aristotle, and Latin collaris, "of the neck" from collum, "neck".
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 Aythya collaris has left across the world's sequence archives.
At a glance
DNA specimens12
BINs1
Marker genes1
Countries2
The DNA barcodethe species' typical barcode, built from every sequenced specimen
COI-5P694 bp consensus11 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. 99% of positions are identical in every specimen.
Diversity (π)0.14%
Haplotypes2
BIN1
Most divergent pair0.14%
Where individuals differ — all 4 variable positions, in barcode order
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
06Genome at a glanceGoaT · NCBI
The complete instruction manualAythya collaris carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.
Genome sizehow big the whole instruction manual is
Genome size≈1 155 884 869 bp assembly estimate
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
BACTERIUM Carsonella ruddii0.00016 Gb
FUNGUS0.04 Gb
INSECT0.25 Gb
THIS GENOME Aythya collaris1.16 Gb
HUMAN3.2 Gb
WHEAT17 Gb
FERN Tmesipteris160.45 Gb
Sequencing statusassembly quality — how far to trust these numbers
Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.
Assembly levelScaffold
07Deep time4.7–0 Ma
How far back this lineage goes — and how we know. Everything here is measured in Ma, short for “mega-annum”: millions of years ago. The chart reads left to right like a calendar of the Earth, from the deep past on the left to today at the right edgetop to bottom like a core drilled through the Earth, from the deep past at the top down to today at the bottom.
At a glance
Fossil range4.7–0 Ma Pliocene, Pleistocene, Holocene
Dated fossil finds18
StatusStill living record runs to the present
When this lineage existed
How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard epochs (Pliocene, Pleistocene…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. This lineage is a young one, so the strip is zoomed in to epochs — the finer subdivisions inside a period. The solid bar is the fossil range: the span between the oldest and the youngest fossil that palaeontologists have assigned to Aythya collaris. Above itBeside it, each dot is one dated fossil find — few enough to count, so they are drawn individually rather than as a graph.
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy77% within 1 km
≤100 m 30 000≤1 km 23 074≤10 km 13 465>10 km 2 092
68 631 georeferenced · 3 208 979 without coordinates
Open the mapobservation + sensor3 277 610
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 accuracy29% within 1 km
≤100 m 104≤1 km 168≤10 km 468>10 km 211
951 georeferenced · 521 without coordinates
Open the institutions mapphysical evidence1 472
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 institutions36 of 58 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Toronto, CA
169
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
122
Ann Arbor, US
99
Chicago, US
88
Cambridge, US
79
Philadelphia, US
66
Seattle, US
61
US
46
Mongolian Museum of Natural Historylocation not on record
46
München, DE
44
CASlocation not on record
44
Iowa City, US
42
Berkeley, US
41
New Haven, US
39
Saint John, CA
37
Ohio State University - Bird Division, Columbus, OH (OSUM)location not on record
35
Tacoma, US
30
Washington, US
28
Washington State University, Charles R. Conner Museumlocation not on record
25
Los Angeles, US
24
Denver, US
21
Vancouver, CA
20
Sam Noble Oklahoma Museum of Natural Historylocation not on record
19
University of Nebraska State Museumlocation not on record
17
San Diego, US
17
Ithaca, US
16
Delaware Museum of Nature and Sciencelocation not on record
16
Texas Cooperative Wildlife Collectionlocation not on record
15
Wuzhou, CN
14
Edmonton, CA
12
Central Michigan University Museum of Cultural and Natural Historylocation not on record
12
Zacatecas, MX
9
Royal Saskatchewan Museumlocation not on record
8
Morelia, MX
8
Chicago, US
7
Tall Timbers Research Stationlocation not on record
7
Mexico City, MX
6
Louisiana State University, Museum of Zoologylocation not on record
5
Albany, US
5
ASNHClocation not on record
3
EL PASO, US
3
Brussels, BE
3
Philip L. Wright Zoological Museumlocation not on record
3
South Kensington, GB
3
University of Wyoming Museum of Vertebrateslocation not on record
2
Natural History Museum Rotterdamlocation not on record
2
Santa Cruz, US
2
Helsinki, FI
2
Mexico City, MX
2
RBINS-Scientific Heritagelocation not on record
2
Science Museum of Minnesotalocation not on record
2
University of Victorialocation not on record
1
Geneva, CH
1
ASUlocation not on record
1
Ensenada, MX
1
Universidad de Caldas (UCaldas)location not on record
1
Honolulu, US
1
Copenhagen, DK
1
58 institutions · 1 435 of 1 472 vouchered records shown · 22 without an institution code
WikipediaWikimedia Foundation16 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility3 279 207 records↗
OBISOcean Biodiversity Information System100 records↗
BOLD SystemsCentre for Biodiversity Genomics12 specimens↗
Open Tree of LifeOpenTreephylogeny backbone↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
NCBIUS National Library of Medicinegenome & karyotype↗
Paleobiology DatabasePBDB consortiumfossil record↗
WikidataWikimedia Foundationstructured facts↗
IOC World Bird ListIOCbird checklist↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗