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Brown recluse
ByteThe brown recluse is a small spider with a violin-shaped mark on its back. It lives mainly in the central and southern United States, where it hides in dark, quiet places such as woodpiles and sheds. It is one of only two North American spiders with dangerous venom, the other being the black widow.1
Hoe om dit te herken
- A dark violin-shaped marking on the top of the front body, with the neck of the violin pointing towards the rear of the spider1
- Typically light to medium brown, though colours range from whitish to dark brown or blackish grey1
- Six eyes arranged in three pairs, while most spiders have eight1
- No obvious patterns on the abdomen or legs, and no spines on the legs1
- Usually 6 to 20 millimetres in body length, but may grow larger1
Word dikwels verwar met: The violin marking is not a reliable identifier, because cellar spiders and pirate spiders can have similar markings. The Mediterranean recluse, an introduced species, is almost indistinguishable from the brown recluse, so many reports of recluses are misidentifications. A spider in the genus Titiotus is the most common spider mistaken for a brown recluse in California, and its bite is considered harmless.1
Gifkrag
Gif kom deur sy giftande of tande uit wanneer dit byt.
Wat doen sy gif as dit byt of steek?
The venom is necrotic, meaning it destroys tissue. It contains a dermonecrotic agent called sphingomyelinase D, which kills the skin around the bite. In some cases the venom spreads through the body within minutes, causing nausea, vomiting, fever, rashes and muscle and joint pain. Rarely, it can burst red blood cells (hemolysis).1
Hoe gevaarlik is dit vir mense?
Gevaar vir mense: Ernstig'n Byt moet deur 'n dokter gesien word. Sterftes is baie skaars.Most bites cause no skin damage, and the spider is rarely aggressive. In one clinical study, skin necrosis occurred in 37% of diagnosed bites and systemic illness in 14%. Rarely, bites can cause organ damage or death. Most fatalities have been in children under seven or in people with weak immune systems. Children, the elderly and seriously ill people may be more susceptible to systemic effects.1
Wat doen dit as dit bang is?
When alarmed, it lowers its body, raises its pedipalps and stands still in a defensive pose. It usually flees, and if caught it may play dead.1
As dit byt
- Was die byt en sit 'n yspak daarop vir die pyn. Kry mediese hulp as die pyn erg is, versprei of die persoon sleg voel.
Bel altyd eers jou noodnommer (112, 000, 911). Dit is algemene noodhulpraad, nie mediese advies nie. Noodhulp-basiese beginsels
Bly veilig
- Moet nooit aan 'n wilde dier raak, dit vang of terg nie, selfs nie 'n kleintjie nie, en selfs nie as dit lyk of dit slaap of dood is nie.
- Gee dit spasie. As jy een raakloop, bly kalm, stap stadig terug en laat dit sy eie pad gaan.
- As een jou byt: bly kalm, bly stil, bel jou noodnommer (112, 000, 911) of kom vinnig by 'n hospitaal uit. Onthou hoe dit gelyk het, 'n foto help.
Dit is nie uit om jou te kry nie. Dit gebruik sy gif om kos te vang of om homself te beskerm, en kruip baie eerder weg. Meer oor veilig bly
Waar in die wêreld?
Hoe groot is dit?
Hoe lank is dit?
omtrent so lank soos 'n skuifspeldHoe groot is Brown recluse in vergelyking met JOU?
Net wiskunde in jou blaaier. Niks word gestoor of enige plek heen gestuur nie.
Hoe vinnig is dit?
Feite
One brown recluse survived for over five seasons in captivity without any food at all.1
In 2001, more than 2,000 brown recluses were removed from a heavily infested home in Kansas, yet the four residents who had lived there for years were never harmed.1
When a leg is lost, the brown recluse does not grow a new one in later moults, unlike the huntsman spider.1
Brown recluses do not balloon, which limits how far they can spread across the landscape.1
Males move around more when hunting than females, which tend to stay near their webs.1
Mite-breker
Mite: Brown recluses are common in California and the western United States, where they cause many bites.
Waarheid: The brown recluse has not established itself in California or anywhere outside its native range. Many reported bites there are misdiagnosed, and other spiders are often wrongly identified as brown recluses.1
Vir gifkenners
- Wetenskaplike naam
- Loxosceles reclusa
- Groep
- Spinnekoppe
- Familie
- Sicariidae2
- Orde
- Araneae
- Kontinente
- Noord-Amerika
- Babas
- Each female produces several egg sacs between May and July, with about 50 eggs in each sac. The eggs hatch in about one month, and the young take about a year to reach adulthood.1
- Gevaar vir mense
- 3 / 5: Ernstig3
Waar die feite vandaan kom
- Brown recluse spider (Wikipedia (CC BY-SA 4.0))
- Loxosceles reclusa (iNaturalist): name en klassifikasie.
- Venom Wiki: die gevaarvlak, die tipiese grootte en die spoedskatting is ons eie. Kyk hoe ons dit uitwerk: Hoe ons gevaar gradeer.
Elke feit op hierdie bladsy het 'n nommer wat na sy bron wys. As ons iets verkeerd het, jammer, ons is dierfanatici, nie 'n wetenskaplike joernaal nie. Laat weet ons by [email protected] en ons maak dit reg.
Die skerpioen is honger! Venom Wiki is 'n eenmanprojek: gratis, sonder advertensies en sonder spoorsnyers. 'n Klein fooitjie help om dit aanlyn te hou.Voer die skerpioen
Southern black widow
Northern black widow
Western black widow
Bold jumping spider
Golden silk orb-weaver
Central American wandering spider
Terciopelo
Eastern coral snake
Eastern diamondback rattlesnake
Eyelash viper
Timber rattlesnake
Western diamondback rattlesnake