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Sydney funnel-web spider

Atrax robustus

Oor die naam: The species name robustus comes from the Latin word for strong, sturdy or mature.1

DodelikEen van die dodelikste diere op aarde. As dit jou byt, roep dadelik hulp.Maak binne minute dood. Hulp moet reeds op pad wees.

Tarantulas & tregterwebspinnekoppe

ByteEet: Vleis

Gevaar vir mense: DodelikEen van die gevaarlikste diere in die wêreld.

The Sydney funnel-web spider is a venomous spider from eastern Australia. It is found mostly within about 100 km of Sydney. Its bite can cause serious illness or death if it is not treated, so it is one of the most important spiders to know about in the region.1

Leef in

Eastern Australia, mostly within a 100 km radius of Sydney, New South Wales1

Australië & Oseanië

Tuis

It lives in moist places, such as under logs, rocks and foliage, and in moist sand and clay. Males often wander into backyards and houses, and can fall into swimming pools.1

Lengte

5 cm (2 in)1

Topspoed

omtrent 1,4 km/h (0,87 mph)

Op land, rowwe skatting

Wat eet dit?

It eats insects such as beetles and cockroaches, land snails, millipedes, lizards and frogs. It waits in a silk-lined burrow and rushes out when prey walks across the trip-lines around the entrance, then injects venom to subdue it.1

Foto van Sydney funnel-web spider — Sydney funnel-web spider. Foto: Sputniktilt. CC BY-SA 3.0, Wikimedia Commons.

Hoe om dit te herken

Body length is 1 to 5 cm.1
Both sexes are glossy and darkly coloured, from blue-black or black to brown or dark plum.1
The top of the body is almost hairless and looks smooth and shiny.1
It has finger-like spinnerets at the end of the abdomen.1
Males are smaller than females but have longer legs.1

Gifkrag

Byte

Gif kom deur sy giftande of tande uit wanneer dit byt.

Wat doen sy gif as dit byt of steek?

The venom contains delta-atracotoxin, which affects the ion channels of nerves and makes it highly toxic to humans and other primates. Symptoms can include intense nausea, vomiting, excessive saliva, muscle twitching, breathing difficulty, confusion and unconsciousness. In severe cases, symptoms begin in under one hour, with a median time of 28 minutes in one study.1

Hoe gevaarlik is dit vir mense?

Gevaar vir mense: DodelikEen van die gevaarlikste diere in die wêreld.

A bite can cause serious illness or death if untreated. Children are at particular risk: in one study, 42% of severe cases were children. There is at least one recorded case of a small child dying within 15 minutes of a bite. Only the Sydney funnel-web and the northern tree-dwelling funnel-web have been known to cause fatal bites in humans. There have been no recorded deaths since antivenom became available in 1981.1

Goeie nuus: dokters het 'n medisyne (teengif) of 'n behandeling hiervoor.1

Wat doen dit as dit bang is?

When threatened or provoked, it rears up on its hind legs, shows its fangs and may bite repeatedly while holding on tightly.1

As dit byt

A Sydney funnel-web bite is a medical emergency that needs immediate hospital treatment. Guidelines recommend two vials of antivenom, or four if symptoms are severe, with patients assessed every 15 minutes and more vials given if symptoms do not resolve.1
Was die byt en koel dit af. Kry mediese hulp as die pyn erg is of die persoon sleg voel.
In Australië, behandel enige byt van 'n groot swart spinnekop as 'n tregterwebspinnekop-byt: Drukimmobilisasie: draai 'n stewige elastiese verband oor die byt en dan op oor die hele arm of been, spalk dit en hou die persoon heeltemal stil totdat hulp opdaag.

Bel altyd eers jou noodnommer (112, 000, 911). Dit is algemene noodhulpraad, nie mediese advies nie. Noodhulp-basiese beginsels

Bly veilig

Moet nooit aan 'n wilde dier raak, dit vang of terg nie, selfs nie 'n kleintjie nie, en selfs nie as dit lyk of dit slaap of dood is nie.
Gee dit spasie. As jy een raakloop, bly kalm, stap stadig terug en laat dit sy eie pad gaan.
As een jou byt: bly kalm, bly stil, bel jou noodnommer (112, 000, 911) of kom vinnig by 'n hospitaal uit. Onthou hoe dit gelyk het, 'n foto help.

Dit is nie uit om jou te kry nie. Dit gebruik sy gif om kos te vang of om homself te beskerm, en kruip baie eerder weg. Meer oor veilig bly

Waar in die wêreld?

Afrika Asië Europa Noord-Amerika Suid-Amerika Australië & Oseanië

Hoe groot is dit?

Hoe lank is dit?

korter as jou pinkiekan 100 meter in 260 sekondes aflê (die vinnigste mens het 9,6 nodig)

Hoe groot is Sydney funnel-web spider in vergelyking met JOU?

Net wiskunde in jou blaaier. Niks word gestoor of enige plek heen gestuur nie.

Hoe vinnig is dit?

'n Skilpad omtrent 0,3 km/h (0,19 mph)

Sydney funnel-web spider omtrent 1,4 km/h (0,87 mph)

'n Mens wat loop omtrent 5 km/h (3,1 mph)

die moeite werd om te weet

Feite

Males can survive submersion in water for up to twenty-four hours by trapping air bubbles on the hairs of their abdomen.1

One dose of antivenom needs around 70 milkings from a Sydney funnel-web spider.1

The most antivenom vials used to treat one bite is twelve, for a 10-year-old boy bitten in February 2017 by a male hiding in a shoe.1

Female spiders are long-lived and spend most of their time in their burrows. No severe envenoming by a female has been reported.1

Activity increases after heavy rain, because burrows can become flooded.1

Mite-breker

Mite: The male and female funnel-web spiders were thought to be different species.

Waarheid: In 1927, Anthony Musgrave showed from anatomical similarities that the male Euctimena tibialis was the male of Atrax robustus, the same species as the female.1

Vir gifkenners

Wetenskaplike naam: Atrax robustus
Groep: Tarantulas & tregterwebspinnekoppe
Familie: Atracidae2
Orde: Araneae
Kontinente: Australië & Oseanië
Gevaar vir mense: 5 / 5: Dodelik3

Waar die feite vandaan kom

Sydney funnel-web spider (Wikipedia (CC BY-SA 4.0))
Atrax robustus (iNaturalist): name en klassifikasie.
Venom Wiki: die gevaarvlak, die tipiese grootte en die spoedskatting is ons eie. Kyk hoe ons dit uitwerk: Hoe ons gevaar gradeer.

Elke feit op hierdie bladsy het 'n nommer wat na sy bron wys. As ons iets verkeerd het, jammer, ons is dierfanatici, nie 'n wetenskaplike joernaal nie. Laat weet ons by [email protected] en ons maak dit reg.

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