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Brown tree snake

Boiga irregularis
O imenu: Its genus, Boiga, is a group of about twenty-five snakes called 'cat-eyed' snakes because they have vertical pupils.1
Samo boliBoli, ali ti neće ozbiljno naštetiti.
Zmije sa stražnjim otrovnim zubima UgriziJede: Meso
Opasnost za ljude: BolnoMože jako boljeti, ali gotovo nikad nije ozbiljno.

The brown tree snake is a slender, night-active snake that climbs well and hunts in trees and on the ground. It lives in coastal northern and eastern Australia, eastern Indonesia, Papua New Guinea and nearby islands. It is famous for harming wildlife on the island of Guam, where it was introduced by accident.1

Živi u
Coastal eastern and northern Australia, eastern Indonesia, Papua New Guinea and islands of northwestern Melanesia. Introduced to Guam.1
Azija, Australija i Oceanija
Početna
It lives in forests, grasslands and sparsely forested areas, and is common in places disturbed by people. It hides during the day in palm crowns, hollow logs, rock crevices, caves and the dark corners of thatched houses near the roof. In Darwin, Australia, it is most often met in suburban areas during the wet season from January to March.1
Duljina
od 1 m do 2 m (od 3,3 ft do 6,6 ft)1
Najveća brzina
oko 6 km/h (3,7 mph)
Na kopnu, gruba procjena
Što jede?
It eats birds, lizards, bats, mice, other small rodents and frogs, as well as many invertebrates and their eggs. It hunts using both sight and chemical cues. Often it wraps its body around its prey like a constrictor to hold it still while it eats.1
Stvarno!Fotografija: Brown tree snake
Brown tree snake. Fotografija: Pavel Kirillov from St.Petersburg, Russia. CC BY-SA 2.0, Wikimedia Commons.

Kako ga prepoznati

  • Slender body, with a large head compared to its body1
  • Usually brown, but can be yellowish, green or beige1
  • Some individuals have red, saddle-shaped blotches1
  • Vertical pupils, like a cat's eyes1
  • Active at night, and usually found in trees1

Otrovna snaga

Ugrizi

Otrov izlazi kroz očnjake ili zube kad ugrize.

Što radi njegov otrov kad ugrize ili ubode?

It has two small, grooved fangs at the back of the mouth, so venom flows into the bite slowly rather than being injected in one go. The venom is weakly neurotoxic, meaning it affects the nerves, and may also damage cells locally. Its effects are trivial for adults, and it is mainly used to subdue lizards.1

Koliko je opasno za ljude?

Opasnost za ljude: BolnoMože jako boljeti, ali gotovo nikad nije ozbiljno.

The snake is considered aggressive when threatened but not dangerous to adult humans. Serious medical consequences have been limited to children, who are more affected because of their low body mass. On Guam, it has caused widespread power outages, pet losses and emotional distress to residents.1

Što radi kad se uplaši?

When threatened it is highly aggressive, lunging and striking at the attacker repeatedly.1

Ako ugrize

  • Operi ugriz, smiri osobu i potraži liječničku pomoć. Neke vrste (poput bumslanga) mogu biti smrtonosne satima kasnije.

Uvijek prvo nazovi broj za hitne slučajeve (112, 000, 911). Ovo su opće upute za prvu pomoć, a ne liječnički savjet. Osnove prve pomoći

Ostani na sigurnom

  • Nikad ne diraj, ne hvataj i ne zadirkuj divlju životinju, čak ni malu, i čak ni ako izgleda kao da spava ili je mrtva.
  • Ostavi joj prostora. Ako je sretneš, ne paniči, polako se odmakni i pusti je da ode svojim putem.
  • Ako te neka ugrize: ne paniči, miruj, nazovi broj za hitne slučajeve (112, 000, 911) ili brzo idi u bolnicu. Zapamti kako je izgledala, fotografija pomaže.

Ne želi ti ništa loše. Otrov koristi za lov hrane ili za obranu i mnogo bi se radije sakrilo. Više o sigurnosti

Gdje u svijetu?

AfrikaAzijaEuropaSjeverna AmerikaJužna AmerikaAustralija i Oceanija

Koliko je veliko?

Koliko je dugo?

Brown tree snake dugo oko 2 m (6,6 ft)Bicikl odrasle osobe oko 1,8 m (5,9 ft)Auto oko 4,5 m (15 ft)
dugo kao 4 kućnih mačaka od nosa do repadugo kao 11 banana poredanih u nizumoglo bi pretrčati 100 metara za 60 sekundi (najbržem čovjeku treba 9,6)

Koliko je Brown tree snake velika životinja u usporedbi s TOBOM?

Samo matematika u tvom pregledniku. Ništa se ne sprema niti šalje nikamo.

Koliko je brzo?

vrijedi znati

Činjenice

1

Snakes on Guam have been seen moving up large smooth cylinders using a method called 'lasso locomotion', which had not been recorded in snakes before. It is tiring, so they move slowly and stop often.1

2

On Guam, where prey is plentiful and there are few predators, the snakes have grown to 3 m, much longer than their typical 1 to 2 m in their native range.1

3

Shortly after World War II, the snake reached Guam by accident, probably as a stowaway in ship cargo or in aircraft landing gear. Its numbers then grew to unprecedented levels.1

4

Trained dogs are used on Guam to find and remove snakes before cargo and transport vessels leave the island.1

5

Female brown tree snakes have been seen performing courtship behaviours normally used by males, such as tongue-flicking and head-jerking.1

6

Brown tree snakes can survive for long periods without food.1

Razbijač mitova

Mit: The brown tree snake is a deadly snake that is dangerous to adults.

Istina: It is not considered dangerous to adult humans. Its venom is weak and serious effects have mainly been seen in young children.1

Za stručnjake za otrove

Znanstveni naziv
Boiga irregularis
Skupina
Zmije sa stražnjim otrovnim zubima
Obitelj
Colubridae2
Redoslijed
Squamata
Kontinenti
Azija, Australija i Oceanija
Mladunci
The female lays 4 to 12 oblong eggs with leathery shells and may lay up to two clutches a year. The eggs hatch about 90 days later.1
Opasnost za ljude
2 / 5: Bolno3

Odakle su činjenice

  1. Brown tree snake (Wikipedia (CC BY-SA 4.0))
  2. Boiga irregularis (iNaturalist): imena i klasifikacija.
  3. Venom Wiki: razina opasnosti, tipična veličina i procijenjena brzina naše su. Pogledaj kako ih izračunavamo: Kako ocjenjujemo opasnost.

Svaka činjenica na ovoj stranici ima broj koji upućuje na njezin izvor. Ako smo nešto pogriješili, oprosti, mi smo ljubitelji životinja, a ne znanstveni časopis. Javi nam na [email protected] i ispravit ćemo to.

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