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Nataal bu ñu rëdd ci Common backswimmer
No 1069 ci 1 402

Common backswimmer

Notonecta glauca
Ci turam: Its common names come from the way it swims on its back, using its hind legs like oars in a boat.1
Amul lorAmul lor ci nit. Amul lu la war a jaaxal.
Chenille ak gunóor Dafay màttDafay lekk: Yàpp
Musiba ci nit: WoyofNi jamu yamb walla lu ko yées. Lu jege, amul lor ci nit.

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

Dafay dund ci
Large parts of Europe, North Africa, and east through Asia to Siberia and China1
Tugal
Kër
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
Guddaay
1,3 cm ba 1,6 cm (0,5 in ba 0,6 in)1
Gaawaay bu gën a kawe
lu tollu ci 0,45 km/h (0,28 mph)
Féey, xalaat
Lan lay lekk?
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
Dëgg-dëgg!Fotoy Common backswimmer
Common backswimmer. Foto: ingridaltmann. CC BY 4.0, iNaturalist.

Ni ngay ko xàmmee

  • 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

Kàttanu daŋar

Dafay màtt

Daŋar bi dafay génn ci bëñam yi su màttee.

Ni mu lore nit ñi?

Musiba ci nit: WoyofNi jamu yamb walla lu ko yées. Lu jege, amul lor ci nit.

Su màttee

  • Ci kawaru chenille yuy jam: dindi leen ak scotch, ginnaaw gi raxas der bi. Bul ko moos.
  • Ci màtt yi: raxas ko te sedal ko. Wutal ndimbal doktoor su yaramu nit ki baaxul walla deret di génn ci yomb.

Saa su nekk, woo jëkk sa nimerob urgence (112, 000, 911). Lii ay ndigal yu yaatu ci ndimbal yu jëkk la, du ndigalu doktoor. Li war a xam ci ndimbal yu jëkk

Sàmmal sa bopp

  • Bul laal mukk, bul jàpp, bul sonal ab rab bu àll, doonte bu ndaw la, te doonte dafa mel ni dafa nelaw walla dafa dee.
  • May ko bérab. Su nga ko gisee, dalal, dellu ginnaaw ndànk-ndànk te bàyyi ko mu dem yoonam.
  • Su benn màttee la: dalal, bul yëngu, woo sa nimerob urgence (112, 000, 911) walla dem lopitaan ci gaaw. Bul fàtte ni mu meloon, ab nataal dina dimbali.

Du la wut. Dafay jëfandikoo daŋaram ngir jàpp lu muy lekk walla ngir aar boppam, te nëbbu moo ko gën a neex. Yeneen ci ni ngay sàmme sa bopp

Fan ci àddina?

AfrigAsiTugalAmerig gu Bëj-gànnaarAmerig gu Bëj-saalumOstarali ak Oseyani

Ni mu réye?

Ni mu guddoo?

Common backswimmer guddaayam lu tollu ci 1,6 cm (0,6 in)Ab peppu ceeb lu tollu ci 7 mm (0,3 in)Ab pees bu 1 euro lu tollu ci 2,3 cm (0,9 in)
gën a gàtt sa baaraam bu ndaw

Common backswimmer ni mu réye ci wetu YOW?

Ay waññ rekk ci sa navigateur. Dara du denc te dara du yónnee fenn.

Ni mu gaawe?

baax na xam

Xibaar

1

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

2

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

3

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

4

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

Ngir boroom xam-xam ci daŋar

Turu xam-xam
Notonecta glauca
Mbooloo
Chenille ak gunóor
Njaboot
Notonectidae2
Toftal
Hemiptera
Kontinaa yi
Tugal
Liir yi
It reproduces in the spring, and young backswimmers, called larvae, live in the water.1
Musiba ci nit
1 / 5: Woyof3

Fa xibaar yi jóge

  1. Notonecta glauca (Wikipedia (CC BY-SA 4.0))
  2. Notonecta glauca (iNaturalist): tur ak ni ñu leen séddale.
  3. Venom Wiki: tolluwaayu musiba bi, réyaay bu yem bi ak xalaatu gaawaay bi, nun ñoo leen defar. Seetal ni nu leen waññe: Ni nuy natte musiba.

Xibaar bu nekk ci xët wii am na ab nimero buy won fa mu jóge. Su nu juumee, baal nu, nun ay nit ñu bëgg rab lanu, du ab jurnaalu xam-xam. Wax nu ko ci [email protected] te dinanu ko jubbanti.

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