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Yellow garden spider

Argiope aurantia

Par nosaukumu: The genus name Argiope means "silver-face" and the species name aurantia means "gilded", giving a Latin name that translates to "gilded silver-face".1

NekaitīgsCilvēkiem nekaitīgs. Nav par ko uztraukties.

Zirnekļi

KodumiĒd: Gaļa

Bīstamība cilvēkiem: VieglsKā bites dzēliens vai mazāk. Cilvēkiem praktiski nekaitīgs.

The yellow garden spider is a large, colourful spider with yellow and black markings on its abdomen. It builds big round webs in sunny fields, gardens and along the eaves of houses in North America, Mexico and Central America. It bites only if disturbed or handled, and its bite is comparable to a bee sting.1

Dzīvo

Contiguous United States, Hawaii, southern Canada, Mexico and Central America; found from Canada to Colombia, but less often in the basin and mountain areas of the Rockies.1

Ziemeļamerika

Sākums

Yellow garden spiders build webs in open, sunny fields, where they stay concealed and sheltered from the wind. They are also found along the eaves of houses and outbuildings, and in any tall vegetation where a web can be stretched securely.1

Garums

2,8 cm (1,1 in)1

Maksimālais ātrums

apmēram 1,3 km/h (0,81 jūdzes/h)

Uz sauszemes, aptuvens minējums

Ko tas ēd?

The spider waits in the centre of its web for prey to become trapped. It may shake the web back and forth to trap the insect further, then kills the prey with venom and wraps it in a silk cocoon to eat later, typically 1–4 hours afterwards. Prey includes insects and small vertebrates such as geckos and green anoles.1

Yellow garden spider foto — Yellow garden spider. Foto: Judy Gallagher. CC BY 2.0, Wikimedia Commons.

Kā to atpazīt

Yellow and black markings on the abdomen (the rear part of the body).1
A mostly white front body section (cephalothorax).1
A large, circular web up to 60 cm across, with a dense zigzag of silk in the centre.1
The female sits in the centre of the web, usually facing straight down.1
Females measure 19–28 mm in body length, while males are much smaller at 5–9 mm.1

Indes spēks

Kodumi

Inde iznāk caur ilkņiem vai zobiem, kad tas iekož.

Ko nodara tā inde?

The venom contains polyamine toxins, including one called argiotoxin ArgTX-636, which are being studied for possible medical uses. For most people the venom is harmless, and a bite causes redness and swelling, similar to a bee sting. It is harmless to people who are not allergic.1

Cik bīstams tas ir cilvēkiem?

Bīstamība cilvēkiem: VieglsKā bites dzēliens vai mazāk. Cilvēkiem praktiski nekaitīgs.

These spiders are not aggressive and only bite if grabbed or disturbed. For a healthy adult, a bite is not considered an issue. People who are very young, elderly, or have weakened immune systems should take the same care they would around a beehive or hornet nest.1

Ko tas dara, kad ir nobijies?

If disturbed by a possible predator, the female may drop from her web and hide on the ground nearby, and she can shake the web vigorously while staying attached in the centre.1

Ja tas iekož

Nomazgā kodumu un pret sāpēm uzliec ledus maisiņu. Meklē medicīnisko palīdzību, ja sāpes ir stipras, izplatās vai cilvēks jūtas slikti.

Vienmēr vispirms zvani uz savu ārkārtas numuru (112, 000, 911). Tie ir vispārīgi pirmās palīdzības padomi, nevis medicīniska konsultācija. Pirmās palīdzības pamati

Esi drošībā

Nekad neaiztiec, neķer un neķircini savvaļas dzīvnieku, pat mazu, un pat ja tas izskatās aizmidzis vai miris.
Dod tam vietu. Ja tādu satiec, saglabā mieru, lēnām atkāpies un ļauj tam iet savu ceļu.
Ja tāds tev iekož: saglabā mieru, nekusties, zvani uz savu ārkārtas numuru (112, 000, 911) vai ātri dodies uz slimnīcu. Atceries, kā tas izskatījās, foto palīdz.

Tas nav nolēmis tevi medīt. Tas izmanto indi, lai noķertu barību vai aizsargātos, un daudz labprātāk paslēptos. Vairāk par drošību

Kur pasaulē?

Āfrika Āzija Eiropa Ziemeļamerika Dienvidamerika Austrālija un Okeānija

Cik tas ir liels?

Cik tas ir garš?

apmēram tikpat garš kā saspraudevarētu noskriet 100 metrus 280 sekundēs (ātrākajam cilvēkam vajag 9,6)

Cik liels ir Yellow garden spider salīdzinājumā ar TEVI?

Tikai matemātika tavā pārlūkā. Nekas netiek saglabāts vai kaut kur nosūtīts.

Cik tas ir ātrs?

Bruņurupucis apmēram 0,3 km/h (0,19 mph)

Yellow garden spider apmēram 1,3 km/h (0,81 mph)

Ejošs cilvēks apmēram 5 km/h (3,1 mph)

vērts zināt

Fakti

The female can shake her web vigorously to make it harder for wasps and birds to target her, and to fully tangle an insect before it cuts itself free.1

After mating, the male often dies and is sometimes eaten by the female, as he inserts his second palpal bulb.1

The zigzag silk in the web, called a stabilimentum, may camouflage the spider, attract prey, or warn birds away, but its purpose is still disputed.1

In a case observed in Georgia, a European hornet cut free prey caught in a yellow garden spider's web, and the spider did not fight it, probably because it dropped from the web and hid.1

Mītu grāvējs

Mīts: Yellow garden spiders are dangerous and their bite can seriously harm a healthy adult.

Patiesība: The venom is harmless to people who are not allergic. A bite is comparable to a bumblebee sting and is not considered an issue for healthy adults.1

Indes ekspertiem

Zinātniskais nosaukums: Argiope aurantia
Grupa: Zirnekļi
Ģimene: Araneidae2
Secība: Araneae
Kontinenti: Ziemeļamerika
Mazuļi: Each female produces one to four egg sacs, each holding perhaps over a thousand eggs, and in spring the tiny spiderlings emerge and some are carried away on silk strands by the breeze.1
Bīstamība cilvēkiem: 1 / 5: Viegls3

No kurienes nāk fakti

Argiope aurantia (Wikipedia (CC BY-SA 4.0))
Argiope aurantia (iNaturalist): nosaukumi un klasifikācija.
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