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Fen raft spider

Dolomedes plantarius

Tidak berbahayaTidak berbahaya kepada manusia. Tiada apa yang perlu dirisaukan.

Labah-labah

GigitanMakan: Daging

Bahaya kepada manusia: RinganSeperti sengatan lebah atau kurang. Boleh dikatakan tidak berbahaya kepada manusia.

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

Hidup di

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

Eropah

Laman utama

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

Panjang

7 cm (2.8 in)1

Kelajuan maksimum

kira-kira 1.3 km/j (0.81 mph)

Di darat, anggaran kasar

Apa yang ia makan?

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

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

Cara mengenalinya

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

Sering dikelirukan dengan: 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

Kuasa bisa

Gigitan

Bisa keluar melalui taring atau giginya apabila ia menggigit.

Berapa bahaya ia kepada manusia?

Bahaya kepada manusia: RinganSeperti sengatan lebah atau kurang. Boleh dikatakan tidak berbahaya kepada manusia.

Jika ia menggigit

Basuh tempat gigitan dan letakkan pek ais untuk menghilangkan sakit. Dapatkan bantuan perubatan jika sakitnya kuat, merebak atau orang itu berasa tidak sihat.

Sentiasa hubungi nombor kecemasan dahulu (112, 000, 911). Ini panduan pertolongan cemas umum, bukan nasihat perubatan. Asas pertolongan cemas

Kekal selamat

Jangan sesekali sentuh, tangkap atau usik haiwan liar, walaupun yang kecil, dan walaupun ia nampak tidur atau mati.
Beri ia ruang. Jika kamu terjumpa, bertenang, undur perlahan-lahan dan biarkan ia pergi.
Jika ia menggigit kamu: bertenang, jangan bergerak, hubungi nombor kecemasan (112, 000, 911) atau pergi ke hospital dengan segera. Ingat rupanya, gambar boleh membantu.

Ia bukan mahu memburu kamu. Ia guna bisanya untuk menangkap makanan atau melindungi diri, dan ia lebih suka bersembunyi. Lagi tentang keselamatan

Di mana di dunia?

Afrika Asia Eropah Amerika Utara Amerika Selatan Australia & Oceania

Berapa besar ia?

Berapa panjang ia?

sepanjang 2 blok binaan mainan disusun sebarisboleh melepasi 100 meter dalam 280 saat (manusia paling laju perlukan 9.6)

Berapa besar Fen raft spider berbanding KAMU?

Hanya matematik dalam pelayar kamu. Tiada apa yang disimpan atau dihantar ke mana-mana.

Berapa laju ia?

Kura-kura darat kira-kira 0.3 km/j (0.19 mph)

Fen raft spider kira-kira 1.3 km/j (0.81 mph)

Orang berjalan kira-kira 5 km/j (3.1 mph)

berguna untuk diketahui

Fakta

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

Untuk pakar bisa

Nama saintifik: Dolomedes plantarius
Kumpulan: Labah-labah
Keluarga: Dolomedidae2
Susunan: Araneae
Benua-benua: Eropah
Anak: 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
Jangka hayat: kira-kira 2.5 tahun1
Keadaannya di alam liar: Vulnerable (IUCN Red List). In the UK it is Nationally Rare and protected by law.1
Bahaya kepada manusia: 1 / 5: Ringan3

Dari mana fakta datang

Great raft spider (Wikipedia (CC BY-SA 4.0))
Dolomedes plantarius (iNaturalist): nama dan pengelasan.
Venom Wiki: tahap bahaya, saiz biasa dan anggaran kelajuan adalah penilaian kami sendiri. Lihat cara kami mengiranya: Cara kami menilai bahaya.

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