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Fen raft spider

Dolomedes plantarius

Hana madharaHana madhara kwa watu. Hakuna cha kuhofia.

KuumwaHula: Nyama

Hatari kwa watu: HafifuKama kudungwa na nyuki au chini ya hapo. Kimsingi hana madhara kwa watu.

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

Anaishi

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

Ulaya

Nyumbani

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

Urefu

7 cm (2.8 in)1

Kasi ya juu

takriban km 1.3 kwa saa (maili 0.81 kwa saa)

Nchi kavu, makadirio

Hula nini?

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

Picha ya Fen raft spider — Fen raft spider. Picha: Thomas Gyselinck. CC BY 4.0, iNaturalist.

Jinsi ya kumtambua

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

Mara nyingi huchanganywa na: 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

Nguvu ya sumu

Kuumwa

Sumu hutoka kupitia meno yake ya sumu au meno anapouma.

Ana hatari gani kwa watu?

Hatari kwa watu: HafifuKama kudungwa na nyuki au chini ya hapo. Kimsingi hana madhara kwa watu.

Akiuma

Osha jeraha na uweke barafu kupunguza maumivu. Tafuta msaada wa kitabibu kama maumivu ni makali, yanasambaa au mtu anajisikia vibaya.

Daima piga namba ya dharura kwanza (112, 000, 911). Huu ni mwongozo wa jumla wa huduma ya kwanza, si ushauri wa kitabibu. Misingi ya huduma ya kwanza

Kaa salama

Kamwe usimguse, kumkamata wala kumchokoza mnyama wa porini, hata akiwa mdogo, na hata akionekana amelala au amekufa.
Mpe nafasi. Ukikutana naye, tulia, rudi nyuma polepole na umwache aende zake.
Akikuuma: tulia, usitikisike, piga namba yako ya dharura (112, 000, 911) au nenda hospitali haraka. Kumbuka alivyoonekana, picha husaidia.

Hakuwindi wewe. Hutumia sumu yake kukamata chakula au kujilinda, na hupendelea zaidi kujificha. Zaidi kuhusu kukaa salama

Wapi duniani?

Afrika Asia Ulaya Amerika Kaskazini Amerika Kusini Australia na Oceania

Ana ukubwa gani?

Ana urefu gani?

urefu sawa na matofali 2 ya kuchezea yaliyopangwa mstariangeweza kukimbia mita 100 kwa sekunde 280 (binadamu mwenye kasi zaidi anahitaji 9.6)

Fen raft spider ana ukubwa gani ukilinganisha na WEWE?

Ni hesabu tu kwenye kivinjari chako. Hakuna kinachohifadhiwa wala kutumwa popote.

Ana kasi gani?

Kobe takriban km 0.3 kwa saa (0.19 mph)

Fen raft spider takriban km 1.3 kwa saa (0.81 mph)

Mtu anayetembea takriban km 5 kwa saa (3.1 mph)

inafaa kujua

Ukweli

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

Kwa wataalamu wa sumu

Jina la kisayansi: Dolomedes plantarius
Kundi: Buibui
Familia: Dolomedidae2
Mpangilio: Araneae
Mabara: Ulaya
Watoto: 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
Muda wa maisha: takriban miaka 2.51
Hali yake porini: Vulnerable (IUCN Red List). In the UK it is Nationally Rare and protected by law.1
Hatari kwa watu: 1 / 5: Hafifu3

Ukweli unatoka wapi

Great raft spider (Wikipedia (CC BY-SA 4.0))
Dolomedes plantarius (iNaturalist): majina na uainishaji.
Venom Wiki: kiwango cha hatari, ukubwa wa kawaida na makadirio ya kasi ni yetu wenyewe. Ona jinsi tunavyovipata: Jinsi tunavyopima hatari.

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