Cochemiea tetrancistra

(Engelm.) P.B.Breslin & Majure · species

image placeholder — illustration coming later

Plantae/Tracheophyta/Magnoliopsida/Caryophyllales/Cactaceae/Cochemiea

At a glance

Occurrence records2 613

Data sources7

Biological traits7

DNA specimens0

eDNA detections2

Sources7 archives

Databases and archives Cochemiea tetrancistra's data was compiled from.

WikipediaWikimedia Foundation6 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility2 613 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗

CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗

PloiDBPloidy Databasegenome & karyotype

Tree of SexTree of Sex Consortiumgenome & karyotype↗

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 sources7 traits

Occurrence & distributionGBIF2 613 records

Environmental DNA1 datasets · 2 countries2 detections

Genome at a glanceCCDB · TreeOfSex2n = 22

01Narrative

Mammillaria tetrancistra is a species of fishhook cactus known by the common name common fishhook cactus. It is native to the Mojave and Sonoran Deserts of northern Mexico and the southwestern United States, where it grows in a variety of desert habitat types.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesGIFTTRY

Life cycle & reproduction1

Life spanperennial

Diet & foraging1

Parasiteindependent

Habitat & environment5

Aquaticterrestrial

Climberself-supporting

Epiphyteterrestrial

Growth formshrub

Woodinesswoody

05DNA & barcoding2 eDNA hits

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 Cochemiea tetrancistra has left across the world's sequence archives.

At a glance

eDNA detections2

Countries2

06Genome at a glanceCCDB · TreeOfSex

The complete instruction manual Cochemiea tetrancistra 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.

Chromosomes & ploidyhow the DNA is packaged

2n is the full chromosome count in a normal body cell; n is a gamete (egg or sperm), which carries half. Ploidy is how many complete chromosome sets each cell holds — 2× (diploid) is typical for animals, while higher levels (polyploidy) are common in plants. Click any value below to see the underlying records and sources.

Chromosomes2n = 22 n = 11

Ploidydiploid inferred

Chromosome records22–222n range22median22mode4records

Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references

2n 224×CCDB · eflora · CCDB · book-fedorov · CCDB · book-atlas-flowering-plants +1

CCDB · eflora

CCDB · book-fedorov — Remski 1954

CCDB · book-atlas-flowering-plants — Remski 1954

TreeOfSex · plant — eflorasNorthAmerica ↗

Ploidy records — measured levels and diploid/polyploid inferences · click for sources

diploid inferred1×PloiDB · genus-scale

PloiDB · genus-scale — chromEvol; reliability=1.000 ↗

08Occurrence & distribution

Record type2 613 records

Wild obs. + sensor2 613

Range

Area of Occupancy AOO6 116 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 accuracy62% within 1 km

≤100 m 1 150≤1 km 144≤10 km 75>10 km 705

2 074 georeferenced · 539 without coordinates

Open the mapobservation + sensor2 613

Wildobservation + sensor

Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.

09Environmental DNA2 detections

Where the DNA of Cochemiea tetrancistra 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 found2

Studies independent surveys1

Countries2

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

Where its DNA was found

0 of 2 detections have coordinates

Open the map2 countries0

Desert scrub with Larrea tridentata, Chilops…

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 median15.6 °C 15.6–15.7

Seasonal swing summer↔winter13.2 °C

Max temp (day)22.6 °C 22.1–23.1

Min temp (night)8.90 °C 8.80–9.00

Precipitation31.2 mm/mo 28.5–34.0

Air humidity51.3 % 51.0–51.6

Moisture balance-111 mm/mo -125–-96.7

Vapour deficit873 Pa 863–882

Wind speed4.30 m/s 4.10–4.40

Cloud cover28.8 % 26.2–31.4

CHELSA 1981–2010, ~9 km grid, at location & month of 2 detection points · 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.

←→tabs

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

Cochemiea tetrancistra

At a glance

Sources7 archives

Life cycle & reproduction1

Diet & foraging1

Habitat & environment5

At a glance

Chromosomes & ploidyhow the DNA is packaged

Record type2 613 records

Range

Wildobservation + sensor

Wildobservation + sensor

Signal

Where its DNA was found

How strong is each trace?

Modelled climatemodelled

Record type2 613 records