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Fen raft spider

Dolomedes plantarius

OnskadelikOnskadelik vir mense. Niks om oor bekommerd te wees nie.

ByteEet: Vleis

Gevaar vir mense: LigSoos 'n bysteek of minder. Basies onskadelik vir mense.

The fen raft spider is a large spider that lives on the edges of still, slow-moving water in Europe. It hunts from plants at the water's edge and can even run across the surface of a pond. It is rare, and it is protected in many places.1

Leef in

Throughout Europe and Russia, including the UK, Scandinavia, France and Germany1

Europa

Tuis

It lives in lowland fens and grazing marshes, usually on the edges of pools or ditches. It needs standing or slow-moving water that is neutral to alkaline, and it avoids places where the water is shaded. Tall plants that stick out of the water are important for perching, basking and building nursery webs.1

Lengte

7 cm (2,8 in)1

Topspoed

omtrent 1,3 km/h (0,81 mph)

Op land, rowwe skatting

Wat eet dit?

It hunts from perches at the water's edge. It feeds mainly on water insects such as pond skaters and dragonfly larvae, smaller water spiders and small fish. It also takes drowning land insects and small animals such as sticklebacks and tadpoles.1

Foto van Fen raft spider — Fen raft spider. Foto: Thomas Gyselinck. CC BY 4.0, iNaturalist.

Hoe om dit te herken

It is a large spider within its range. Adult females have bodies slightly over 2 cm long and a leg span of about 7 cm.1
It is usually black or brown, with white or cream stripes along the sides of the body.1
It is often found sitting on plant stems at the water's edge, with its back legs on a stem and its front legs on the water.1

Word dikwels verwar met: It is very similar in appearance to the closely related raft spider, Dolomedes fimbriatus, and the two are often misidentified. Identification can be difficult.1

Gifkrag

Byte

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

Hoe gevaarlik is dit vir mense?

Gevaar vir mense: LigSoos 'n bysteek of minder. Basies onskadelik vir mense.

As dit byt

Was die byt en sit 'n yspak daarop vir die pyn. Kry mediese hulp as die pyn erg is, versprei of die persoon sleg voel.

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?

so lank soos 2 speelgoed-boublokke in 'n rykan 100 meter in 280 sekondes aflê (die vinnigste mens het 9,6 nodig)

Hoe groot is Fen raft 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)

Fen raft spider omtrent 1,3 km/h (0,81 mph)

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

die moeite werd om te weet

Feite

It can run across the surface of water by using surface tension, the force that keeps the water's skin intact.1

It can also hunt underwater by running down plant stems, and it can use this route to escape predators.1

It detects prey using sensory hairs on its legs, which pick up the vibrations made when prey hits the water.1

Before hatching, the female builds a tent-like nursery web on plants above the water, where she guards the young.1

In 2010, around 1,600 hand-reared spiderlings were released at a new UK site, which were fed on fruit flies.1

Males mate early in the season and most die by late July. Females survive until the end of summer.1

Vir gifkenners

Wetenskaplike naam: Dolomedes plantarius
Groep: Spinnekoppe
Familie: Dolomedidae2
Orde: Araneae
Kontinente: Europa
Babas: The female lays several hundred eggs in a silk sac about 10 mm across, which she carries under her body for around three weeks.1
Lewensduur: omtrent 2,5 jaar1
Hoe dit in die natuur gaan: Vulnerable (IUCN Red List). In the UK it is Nationally Rare and protected by law.1
Gevaar vir mense: 1 / 5: Lig3

Waar die feite vandaan kom

Great raft spider (Wikipedia (CC BY-SA 4.0))
Dolomedes plantarius (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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