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Eserese katuun nke Common backswimmer
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Common backswimmer

Notonecta glauca
Gbasara aha ya: Its common names come from the way it swims on its back, using its hind legs like oars in a boat.1
Adịghị njọỌ dịghị njọ nye mmadụ. Ọ dịghị ihe ị ga-echegbu onwe gị.
Ihe ize ndụ nye mmadụ: ObereDị ka ịgba aṅụ ma ọ bụ nke na-erughị ya. Ọ fọrọ nke nta ka ọ ghara ịdị njọ nye mmadụ.

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

Ebe obibi
Large parts of Europe, North Africa, and east through Asia to Siberia and China1
Yurop
Ụlọ
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
Ogologo
1.3 cm ruo 1.6 cm (0.5 in ruo 0.6 in)1
Ọsọ kacha elu
ihe dị ka 0.45 km/h (0.28 mph)
Igwu mmiri, nchepụta
Gịnị ka ọ na-eri?
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
N'ezie!Foto Common backswimmer
Common backswimmer. Foto: ingridaltmann. CC BY 4.0, iNaturalist.

Otú ị ga-esi mata ya

  • 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

Ike nsị

Ịta

Nsị na-esi n'eze nsị ya ma ọ bụ eze ya apụta mgbe ọ na-ata.

Kedu otú o si dị egwu nye mmadụ?

Ihe ize ndụ nye mmadụ: ObereDị ka ịgba aṅụ ma ọ bụ nke na-erughị ya. Ọ fọrọ nke nta ka ọ ghara ịdị njọ nye mmadụ.

Ọ bụrụ na ọ tara

  • Maka ajị ikpuru na-agba agba: jiri teepu na-arapara arapara wepụ ha, wee saa akpụkpọ ahụ. Ehichala ya.
  • Maka ịta: saa ya, mee ka ọ jụọ oyi. Chọọ enyemaka ọgwụ ma ọ bụrụ na ahụ adịghị onye ahụ mma ma ọ bụ na ọbara na-agba ya ngwa ngwa.

Na-ebu ụzọ kpọọ nọmba mberede gị mgbe niile (112, 000, 911). Nke a bụ ndụmọdụ enyemaka mbụ n'ozuzu, ọ bụghị ndụmọdụ ọgwụ. Isi ihe enyemaka mbụ

Nọrọ na nchekwa

  • Emetụla anụ ọhịa aka, ejidela ya, emekwala ya ihe ọjọọ, ọbụna obere, ọbụna ma ọ dị ka ọ na-ehi ụra ma ọ bụ nwụọ anwụ.
  • Nye ya ohere. Ọ bụrụ na ị zutere otu, dị jụụ, laghachi azụ nwayọ, hapụ ya ka ọ gaa ụzọ ya.
  • Ọ bụrụ na otu tara gị: dị jụụ, emegharịla ahụ, kpọọ nọmba mberede gị (112, 000, 911) ma ọ bụ gaa ụlọ ọgwụ ngwa ngwa. Cheta ka o si dị, foto na-enye aka.

Ọ naghị achụ gị. Ọ na-eji nsị ya ejide nri ma ọ bụ chebe onwe ya, ọ ga-akakwa mma n'anya ya ịzo onwe ya. Ihe ndị ọzọ gbasara ịnọ na nchekwa

Ọ hà aṅaa?

Kedu otú o si dị ogologo?

Common backswimmer ogologo ya dị ihe dị ka 1.6 cm (0.6 in)Otu mkpụrụ osikapa ihe dị ka 7 mm (0.3 in)Mkpụrụ ego otu euro ihe dị ka 2.3 cm (0.9 in)
dị mkpụmkpụ karịa obere mkpịsị aka gị

Kedu otú Common backswimmer si hà ma e jiri ya tụnyere GỊ?

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ọ dị mma ịmara

Eziokwu

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

Maka ndị ọkachamara nsị

Aha sayensị
Notonecta glauca
Otu
Ikpuru ajị na ụmụ ahụhụ
Ezinụlọ
Notonectidae2
Usoro
Hemiptera
Kọntinent dị iche iche
Yurop
Ụmụ ọhụrụ
It reproduces in the spring, and young backswimmers, called larvae, live in the water.1
Ihe ize ndụ nye mmadụ
1 / 5: Obere3

Ebe eziokwu ndị a si

  1. Notonecta glauca (Wikipedia (CC BY-SA 4.0))
  2. Notonecta glauca (iNaturalist): aha na nhazi ọkwa.
  3. Venom Wiki: ọkwa ihe ize ndụ, nha nkịtị na nchepụta ọsọ bụ nke anyị. Lee otú anyị si achọpụta ha: Otú anyị si atụ ihe ize ndụ.

Eziokwu ọ bụla dị na peeji a nwere nọmba na-egosi ebe o si. Ọ bụrụ na anyị mehiere ihe, ndo, anyị bụ ndị hụrụ anụmanụ n'anya, ọ bụghị akwụkwọ akụkọ sayensị. Gwa anyị na [email protected], anyị ga-edozi ya.

Akpị agụụ na-agụ! Venom Wiki bụ ọrụ otu onye: n'efu, na-enweghị mgbasa ozi na ndị na-esochi gị. Obere onyinye na-enyere aka idebe ya n'ịntanetị.Nye akpị nri

Ndị ọzọ si n'otu ahụ: Ikpuru ajị na ụmụ ahụhụ

Ọ na-ebikwa na: Yurop

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