Celaenia excavata

(L.Koch, 1867) · species

image placeholder — illustration coming later

Animalia/Arthropoda/Arachnida/Araneae/Araneidae/Celaenia

At a glance

Occurrence records1 175

Data sources7

Biological traits2

DNA specimens3

eDNA detections3

Sources7 archives

Databases and archives Celaenia excavata's data was compiled from.

WikipediaWikimedia Foundation5 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility1 175 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI3 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics3 specimens↗

World Spider Trait DBMasaryk University2 traits · 2 refs↗

World Spider CatalogNaturhist. Museum Bernworld catalog↗

On this page5 sections

Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.

NarrativeWikipediaarticle

Traits & measurements2 literature sources2 traits

Occurrence & distributionGBIF1 175 records

Environmental DNA1 datasets · 1 countries3 detections

DNA & barcodingBOLD3 specimens

01Narrative

Celaenia excavata, the bird dropping spider of Australia and New Zealand, derives its name from mimicking bird droppings to avoid predators, mainly birds. However, there are other species of spider that resemble bird droppings, for example species of Mastophora (a bolas spider).

No narrative description available for this taxon yet.

02Traits & measurements

SourcesPekár 2014aPekár et al. 2012a

Predation1

Prey diversity1.06 mm

Defence1

Primary defenceCamouflage

05DNA & barcoding3 specimens

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 Celaenia excavata has left across the world's sequence archives.

At a glance

DNA specimens3

BINs1

Marker genes2

eDNA detections3

Countries1

Marker genes sequenced

★ 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-5P18S-5P

animal barcoderibosomal

08Occurrence & distribution

Record type1 175 records

Wild obs. + sensor946

Museum / vouchered229

Range

Area of Occupancy AOO3 396 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 accuracy75% within 1 km

≤100 m 447≤1 km 106≤10 km 57>10 km 123

733 georeferenced · 213 without coordinates

Open the mapobservation + sensor946

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 accuracy22% within 1 km

≤100 m 5≤1 km 16≤10 km 69>10 km 4

94 georeferenced · 135 without coordinates

Open the institutions mapphysical evidence229

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 institutions2 of 9 geolocated

Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.

Institution	Specimens
Natick, US	64
Sydney, AU	52
DOI/NPS, Salem Maritime National Historic Sitelocation not on record	43
QVMAGlocation not on record	29
Tasmanian Museum & Art Gallerylocation not on record	23
Western Australian Museumlocation not on record	14
Museums Victorialocation not on record	2
MWLRlocation not on record	1
New Zealand Arthropod Collectionlocation not on record	1

9 institutions · 229 of 229 vouchered records shown

09Environmental DNA3 detections

Where the DNA of Celaenia excavata was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.

Signal

Detections DNA found3

Studies independent surveys1

Countries1

Signal confidence: weakweighed across independent studies, places & mapped detections

Where its DNA was found

0 of 3 detections have coordinates

Open the map1 country0

Open forest

How strong is each trace?

DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.

Modelled climatemodelled

−15°Ctemperature across detection sites+40°C

Temperature median19.1 °C 19.1–19.1

Seasonal swing summer↔winter8.60 °C

Max temp (day)24.4 °C

Min temp (night)14.2 °C

Precipitation24.6 mm/mo

Air humidity59.4 %

Moisture balance-65.6 mm/mo

Vapour deficit891 Pa

Wind speed1.50 m/s

Cloud cover29.1 %

CHELSA 1981–2010, ~9 km grid, at location & month of 1 detection point · median with p10–p90 · reflects where sampling happened, not only the true niche

How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.

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The Life Data · species page · narrative wired to read_model image placeholder · 3D tilt requires an http server (WebGL)

Celaenia excavata

At a glance

Sources7 archives

Predation1

Defence1

At a glance

Record type1 175 records

Range

Wildobservation + sensor

Museum / Voucheredphysical evidence

Wildobservation + sensor

Holding institutions2 of 9 geolocated

Signal

Where its DNA was found

How strong is each trace?

Modelled climatemodelled

Record type1 175 records