Venom Wiki / Barcha maxluqlar / Oʻrgimchaklar

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Western black widow

Latrodectus hesperus

Shifokor kerakKamdan-kam halokatli, lekin chaqqanda shifokor kerak.

Oʻrgimchaklar

ChaqadiOvqati: Goʻsht

Odamlar uchun xavf: JiddiyChaqqanda shifokor kerak. Oʻlim holatlari juda kam.

The western black widow is a venomous spider that lives in western North America. The female is black, often with a red hourglass mark on her belly, and her webs are tangled and irregular. Her venom is strong, so it is worth knowing what she looks like.1

Yashash joyi

Western North America: south-western Canada (British Columbia to Manitoba), the Pacific Coast, Texas, Oklahoma, Kansas, and Mexico1

Shimoliy Amerika

Bosh sahifa

It builds tangled webs low above the ground. It is commonly found near the Canada-US border and less commonly across the grasslands of the Canadian Prairies.1

Uzunlik

1,4 cm dan 1,6 cm gacha (0,6 in dan 0,6 in gacha)1

Eng yuqori tezlik

taxminan 0,98 km/soat (0,61 mil/soat)

Quruqlikda, taxminiy

Nima yeydi?

It hangs upside down near the centre of its web and waits for insects to land in it. It bites the prey, injects venom, and wraps it in silk. Beetles and ants, wasps and bumblebees make up most of its prey.1

Western black widow surati — Western black widow. Surat: Luke Padon. CC BY 4.0, iNaturalist.

Uni qanday tanish mumkin

The female is about 14–16 mm long and black, often with an hourglass-shaped mark on the lower abdomen.1
The hourglass mark is usually red, but it can be yellow and, very rarely, white.1
The male is about half the female's length and is generally beige, with lighter striping on the abdomen.1
Its webs are irregular or tangled, with no obvious overall pattern.1

Koʻpincha adashtiriladi: It was once described as a subspecies of Latrodectus mactans and is closely related to the northern species Latrodectus variolus.1

Zahar quvvati

Chaqadi

Chaqqanda zahar zaharli tishlari yoki tishlari orqali chiqadi.

Uning zahari (chaqsa yoki nish ursa) nima qiladi?

The female's venom contains a neurotoxin called α-latrotoxin, which attacks the nerves. In humans, its symptoms include pain, nausea, vomiting, goosebumps and localised sweating.1

Odamlar uchun qanchalik xavfli?

Odamlar uchun xavf: JiddiyChaqqanda shifokor kerak. Oʻlim holatlari juda kam.

Historical reports gave fatality rates between 0.5% and 12%. However, recent studies have not been able to confirm any deaths from the U.S. species of Latrodectus, including zero deaths among 23,409 documented bites from 2000 through 2008.1

Qoʻrqqanda nima qiladi?

Juveniles and females can fling a sticky ball of silk at predators, which can stop most of them.1

Agar chaqsa

Chaqilgan joyni yuv va ogʻriq uchun ustiga muz xaltasi qoʻy. Agar ogʻriq kuchli boʻlsa, tarqalsa yoki odam oʻzini yomon his qilsa, tibbiy yordam ol.

Har doim avval favqulodda yordam raqamiga qoʻngʻiroq qil (112, 000, 911). Bu birinchi yordam boʻyicha umumiy maslahat, tibbiy maslahat emas. Birinchi yordam asoslari

Xavfsiz boʻl

Hech qachon yovvoyi hayvonga tegma, uni tutma yoki jigʻiga tegma, hatto kichkina boʻlsa ham va hatto uxlayotgan yoki oʻlik koʻrinsa ham.
Unga joy ber. Agar duch kelsang, xotirjam boʻl, sekin orqaga chekin va uni oʻz yoʻliga ketishiga qoʻy.
Agar biri seni chaqsa: xotirjam boʻl, qimirlamay tur, favqulodda yordam raqamiga qoʻngʻiroq qil (112, 000, 911) yoki tezda kasalxonaga yet. U qanday koʻrinishda ekanini eslab qol, surat yordam beradi.

U seni ovlamoqchi emas. Zaharini ovqat tutish yoki oʻzini himoya qilish uchun ishlatadi va yashirinishni ancha afzal koʻradi. Xavfsiz qolish haqida batafsil

Dunyoning qayerida?

Afrika Osiyo Yevropa Shimoliy Amerika Janubiy Amerika Avstraliya va Okeaniya

U qanchalik katta?

U qanchalik uzun?

kichik barmogʻingdan qisqa

Western black widow SEN bilan solishtirganda qanchalik katta?

Faqat brauzeringdagi hisob-kitob. Hech narsa saqlanmaydi va hech qayerga yuborilmaydi.

U qanchalik tez?

Toshbaqa taxminan 0,3 km/soat (0,19 mph)

Western black widow taxminan 0,98 km/soat (0,61 mph)

Piyoda ketayotgan odam taxminan 5 km/soat (3,1 mph)

bilish foydali

Faktlar

When prey hits a gumfoot thread, the thread breaks and creates tension that pulls the line and prey up to the spider.1

This spider is an opportunistic cannibal, and it may eat other members of its own kind when prey is scarce, when it is very hungry, or in self-defence.1

The silk is strongly sticky, and its strength is similar to that of silk from orb-weaving spiders.1

Males can be preferred by females based on the webs, with well-fed females chosen over starved ones.1

Males may mate several times during their relatively short lives.1

Afsonalarni fosh qiluvchi

Afsona: A black widow bite is usually deadly.

Haqiqat: Recent studies have not confirmed any deaths from the U.S. species of Latrodectus, including zero deaths among 23,409 documented bites from 2000 through 2008.1

Zahar mutaxassislari uchun

Ilmiy nomi: Latrodectus hesperus
Guruh: Oʻrgimchaklar
Oila: Theridiidae2
Tartib: Araneae
Qitʼalar: Shimoliy Amerika
Chaqaloqlar: Females produce egg sacs, and the young are born in the months from May to October.1
Odamlar uchun xavf: 3 / 5: Jiddiy3

Faktlar qayerdan olingan

Latrodectus hesperus (Wikipedia (CC BY-SA 4.0))
Latrodectus hesperus (iNaturalist): nomlar va tasnif.
Venom Wiki: xavf darajasi, odatiy oʻlcham va taxminiy tezlik bizning oʻz baholarimiz. Ularni qanday hisoblashimizni koʻr: Xavfni qanday baholaymiz.

Bu sahifadagi har bir faktning manbasiga ishora qiluvchi raqami bor. Agar biror narsani xato yozgan boʻlsak, kechir, biz hayvon ixlosmandlarimiz, ilmiy jurnal emas. [email protected] manziliga yoz, tuzatamiz.

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