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Sydney funnel-web spider

Atrax robustus

Izenari buruz: The species name robustus comes from the Latin word for strong, sturdy or mature.1

HilgarriaLurreko animaliarik hilgarrienetako bat. Kosk egiten badizu, eskatu laguntza berehala.Minutu gutxitan hiltzen du. Laguntzak jada bidean egon behar du.

Tarantulak eta inbutu-sareko armiarmak

KoskaJaten du: Haragia

Arriskua pertsonentzat: HilgarriaMunduko animaliarik arriskutsuenetako bat.

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

Non bizi den

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

Australia eta Ozeania

Hasiera

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

Luzera

5 cm (2 in)1

Abiadura handiena

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

Lehorrean, kalkulu gutxi gorabeherakoa

Zer jaten du?

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

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

Nola ezagutu

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

Pozoi-ahalmena

Koska

Pozoia letaginetatik edo hortzetatik ateratzen da kosk egiten duenean.

Zer egiten du bere pozoiak?

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

Zein arriskutsua da pertsonentzat?

Arriskua pertsonentzat: HilgarriaMunduko animaliarik arriskutsuenetako bat.

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

Albiste ona: medikuek badute sendagai bat (antipozoia) edo tratamendu bat honetarako.1

Zer egiten du beldurtzen denean?

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

Kosk egiten badu

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
Garbitu koska eta hoztu. Lortu mediku-laguntza mina handia bada edo pertsona gaizki sentitzen bada.
Australian, armiarma beltz handi baten edozein koska inbutu-sareko armiarmaren koska balitz bezala tratatu: Presio-immobilizazioa: bildu benda elastiko sendo bat koskaren gainean eta gero gorputz-adar osoan gora, immobilizatu ferula batekin, eta eutsi pertsona guztiz geldi laguntza iritsi arte.

Deitu beti lehenik zure larrialdi-zenbakira (112, 000, 911). Lehen sorospenei buruzko orientabide orokorra da hau, ez mediku-aholkua. Lehen sorospenen oinarriak

Egon seguru

Ez ukitu, ez harrapatu eta ez zirikatu inoiz animalia basati bat, txikia izan arren, eta lo edo hilda dagoela badirudi ere.
Utzi tartea. Bat aurkitzen baduzu, egon lasai, egin atzera poliki eta utzi bere bidetik joaten.
Batek kosk egiten badizu: egon lasai, egon geldi, deitu zure larrialdi-zenbakira (112, 000, 911) edo joan ospitalera azkar. Gogoratu nolakoa zen, argazki batek laguntzen du.

Ez dabil zure atzetik. Pozoia janaria harrapatzeko edo bere burua babesteko erabiltzen du, eta askoz nahiago du ezkutatu. Seguru egoteari buruz gehiago

Munduko zein tokitan?

Afrika Asia Europa Ipar Amerika Hego Amerika Australia eta Ozeania

Zein handia da?

Zein luzea da?

zure hatz txikia baino laburragoa100 metro 260 segundotan egin litzake (gizakirik azkarrenak 9,6 behar ditu)

Zein handia da Sydney funnel-web spider ZUREKIN alderatuta?

Matematika hutsa zure nabigatzailean. Ez da ezer gordetzen, ezta inora bidaltzen ere.

Zein azkarra da?

Dortoka bat 0,3 km/h inguru (0,19 mph)

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

Oinez doan pertsona bat 5 km/h inguru (3,1 mph)

jakin beharrekoa

Datuak

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

Mito-hauslea

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

Egia: 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

Pozoi-adituentzat

Izen zientifikoa: Atrax robustus
Taldea: Tarantulak eta inbutu-sareko armiarmak
Familia: Atracidae2
Ordena: Araneae
Kontinenteak: Australia eta Ozeania
Arriskua pertsonentzat: 5 / 5: Hilgarria3

Datuak nondik datozen

Sydney funnel-web spider (Wikipedia (CC BY-SA 4.0))
Atrax robustus (iNaturalist): izenak eta sailkapena.
Venom Wiki: arrisku-maila, ohiko tamaina eta abiadura-kalkulua geureak dira. Ikusi nola kalkulatzen ditugun: Nola baloratzen dugun arriskua.

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