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Common backswimmer

Notonecta glauca

Nomi haqida: Its common names come from the way it swims on its back, using its hind legs like oars in a boat.1

ZararsizOdamlar uchun zararsiz. Xavotirga oʻrin yoʻq.

Qurtlar va hasharotlar

ChaqadiOvqati: Goʻsht

Odamlar uchun xavf: YengilAri nishidek yoki undan ham kam. Odamlar uchun deyarli zararsiz.

The common backswimmer is a small water insect that swims upside down, under the surface of ponds. It hunts other small water creatures and can fly between ponds when the weather is warm. It is the most common backswimmer in much of its range.1

Yashash joyi

Large parts of Europe, North Africa, and east through Asia to Siberia and China1

Yevropa

Bosh sahifa

It lives under the water surface in ponds, and it is also the most widespread of the four British water-boatmen. In warm late summer and autumn it flies between ponds.1

Uzunlik

1,3 cm dan 1,6 cm gacha (0,5 in dan 0,6 in gacha)1

Eng yuqori tezlik

taxminan 0,45 km/soat (0,28 mil/soat)

Suzish, taxminiy

Nima yeydi?

It is a predator. It either waits for prey to pass by or swims and actively hunts it. It often feeds on mosquito (Culex) larvae at the surface, and mature females also dive to the bottom of shallow ponds to catch isopods (Asellus).1

Common backswimmer surati — Common backswimmer. Surat: ingridaltmann. CC BY 4.0, iNaturalist.

Uni qanday tanish mumkin

Swims and rests on its back1
Body length is about 13 to 16 mm1
Females are larger than males1
Hind legs are fringed with hair and held out to the sides like oars when resting1
Body is covered in hairs, except on the head and legs1

Zahar quvvati

Chaqadi

Chaqqanda zahar zaharli tishlari yoki tishlari orqali chiqadi.

Odamlar uchun qanchalik xavfli?

Odamlar uchun xavf: YengilAri nishidek yoki undan ham kam. Odamlar uchun deyarli zararsiz.

Agar chaqsa

Nish uradigan qurt tuklari uchun: ularni yopishqoq lenta bilan olib tashla, keyin terini yuv. Ishqalama.
Chaqishda: yuv va sovut. Agar odam oʻzini yomon his qilsa yoki qoni oson oqsa, 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

Common backswimmer SEN bilan solishtirganda qanchalik katta?

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

U qanchalik tez?

Bogʻ shilliqqurti taxminan 0,05 km/soat (0,03 mph)

Common backswimmer taxminan 0,45 km/soat (0,28 mph)

Suzayotgan odam taxminan 3 km/soat (1,9 mph)

bilish foydali

Faktlar

It breathes air but has no gills. It keeps a thin film of air around its body, which can last up to 120 days.1

It can tell prey from other backswimmers by the surface waves they make. Prey waves are between 70 and 140 Hz, while other backswimmers make waves below 40 Hz.1

Its air film reduces drag when it dives. Scientists use it as a model for reducing drag, with possible uses such as on ships.1

It can see in both day and night. Its pupil takes about 40 minutes to adjust to daylight and about 50 minutes to adjust to night light.1

Zahar mutaxassislari uchun

Ilmiy nomi: Notonecta glauca
Guruh: Qurtlar va hasharotlar
Oila: Notonectidae2
Tartib: Hemiptera
Qitʼalar: Yevropa
Chaqaloqlar: It reproduces in the spring, and young backswimmers, called larvae, live in the water.1
Odamlar uchun xavf: 1 / 5: Yengil3

Faktlar qayerdan olingan

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

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