ቁ. 0714 ካብ 1 402

Darwin's bark spider

Caerostris darwini

ብዛዕባ እቲ ስም፦ It was named in honour of the naturalist Charles Darwin, on 24 November 2009, exactly 150 years after The Origin of Species was published.1

ዘይጎድእንሰባት ኣይጎድእን። ዘሻቕል ነገር የለን።

ሳሬታት

ንኽሳታትዝበልዖ፦ ሓሰኻታት

ሓደጋ ንሰባት: ቀሊልከም ምንዳፍ ንህቢ ወይ ካብኡ ዝውሕድ። ንሰባት ዳርጋ ዘይጎድእ።

Darwin's bark spider is an orb-weaver that builds the largest orb webs ever seen. It lives in the forests of Madagascar, where it hangs its web over rivers and lakes. Scientists found it in 2009, and it has unusually tough silk.1

ዝነብረሉ

Madagascar, found in Andasibe-Mantadia National Park1

ኣፍሪቃ

መበገሲ

Builds its web directly above rivers or the water of lakes, a habitat no other spider is known to use. Its webs are large enough to be noticed from a distance.1

ንውሓት

2,2 cm (0,9 in)1

ዝለዓለ ቅልጣፈ

ኣስታት 1,1 ኪ.ሜ/ሰዓት (0,68 ማይል/ሰዓት)

ኣብ መሬት, ግምት

እንታይ ይበልዕ?

Catches insects, including mayflies, that fly over the water and become caught in its web. One web has been seen holding up to 32 mayflies at a time.1

ስእሊ Darwin's bark spider — Darwin's bark spider። ስእሊ፦ Matjazgregoric። CC BY-SA 4.0, iNaturalist.

ብኸመይ ትፈልጦ

Females are largely black, with white hairs on the body and legs.1
The top of the front body section has two pairs of raised humps, one at the sides and one towards the back.1
Females are about 1.8 to 2.2 cm long, while males are around 0.6 cm.1
Males are redder and lighter brown, with white hairs and red, hairless leg segments (femora).1
Webs are very large, up to 2.8 square metres, and are strung over water.1

ብዙሕ ግዜ ዝደናገረሉ፦ Other Caerostris species live in the same region of Madagascar. Darwin's bark spider has clearly separated epigynal chambers (parts of the female's genital plate) with a pair of hooks at the back, which the other species from the region do not have.1

ሓይሊ መርዚ

ንኽሳታት

ክነኽስ ከሎ መርዚ ብኣስናን መርዙ ወይ ብኣስናኑ ይወጽእ።

ንሰባት ክንደይ ሓደገኛ እዩ?

ሓደጋ ንሰባት: ቀሊልከም ምንዳፍ ንህቢ ወይ ካብኡ ዝውሕድ። ንሰባት ዳርጋ ዘይጎድእ።

እንተ ነኺሱ

ነቲ ንኽሳ ሕጸቦ፣ ንቓንዛ ድማ ናይ በረድ ከረጺት ኣንብረሉ። ቃንዛ እንተ በርቲዑ፣ እንተ ተዘርጊሑ ወይ እቲ ሰብ ጥዕና እንተ ዘይተሰምዖ ሕክምናዊ ሓገዝ ርኸብ።

ኩሉ ግዜ ቀዳምነት ናብ ቁጽሪ ህጹጽ ረድኤት ደውል (112፣ 000፣ 911)። እዚ ሓፈሻዊ መምርሒ ቀዳማይ ረድኤት እዩ፣ ሕክምናዊ ምኽሪ ኣይኮነን። መሰረታት ቀዳማይ ረድኤት

ብድሕንነት ጽናሕ

ንዘገዳም እንስሳ ፈጺምካ ኣይትተንክፎ፣ ኣይትሓዞ ወይ ኣይተሕርቖ፣ ንእሽቶ እንተ ኾነ እውን፣ ደቂሱ ወይ ሞይቱ እንተ መሰለ እውን።
ቦታ ሃቦ። እንተ ረኺብካዮ፣ ህዱእ ኹን፣ ቀስ ኢልካ ንድሕሪት ተመለስ፣ ናብ መገዱ ድማ ይኺድ ሕደጎ።
ሓደ እንተ ነኺሱካ፦ ህዱእ ኹን፣ ከይተንቀሳቐስካ ጽናሕ፣ ናብ ቁጽሪ ህጹጽ ረድኤት (112፣ 000፣ 911) ደውል ወይ ብቕልጡፍ ናብ ሆስፒታል ኪድ። ከመይ ከም ዝመስል ዘክር፣ ስእሊ ይሕግዝ።

ንዓኻ ከጥቅዕ ኣይደልን እዩ። መርዙ ዝጥቀመሉ መግቢ ንምሓዝ ወይ ንርእሱ ንምክልኻል እዩ፣ ምሕባእ ድማ ኣዝዩ ይመርጽ። ብዛዕባ ድሕንነት ተወሳኺ

ኣበይ ኣብ ዓለም?

ኣፍሪቃ እስያ ኤውሮጳ ሰሜን ኣመሪካ ደቡብ ኣመሪካ ኣውስትራልያን ኦሽያንያን

ክንደይ ዓቢ እዩ?

ክንደይ ይነውሕ?

ኣስታት ከም መሓዝ ወረቐት ይነውሕ100 ሜትሮ ብ330 ካልኢት ክሽፍን ይኽእል (እቲ ዝቐልጠፈ ሰብ 9.6 የድልዮ)

Darwin's bark spider ምሳኻ ክወዳደር ከሎ ክንደይ ዓቢ እዩ?

ኣብ ብራውዘርካ ዝስራሕ ሕሳብ ጥራይ። ዋላ ሓደ ነገር ኣይዕቀብን ናብ ዝኾነ ቦታ ድማ ኣይለኣኽን።

ክንደይ ቅልጡፍ እዩ?

ጎብየ ኣስታት 0,3 ኪ.ሜ/ሰዓት (0,19 mph)

Darwin's bark spider ኣስታት 1,1 ኪ.ሜ/ሰዓት (0,68 mph)

ዝኸይድ ሰብ ኣስታት 5 ኪ.ሜ/ሰዓት (3,1 mph)

ክፍለጥ ዘለዎ

ሓቅታት

Its silk is the toughest biological material ever studied. It is over ten times tougher than a similar amount of Kevlar.1

Its web is the largest orb web ever observed, covering up to 2.8 square metres. Its bridge lines can span up to 25 metres.1

The spider uses a set of web-building behaviours that are unknown in other spiders. It releases bridge silk into the air so the wind carries it across the water.1

Females are much larger than males, sometimes many times heavier. This is one of the most extreme size differences between the sexes in spiders.1

Flies that feed on its catches have been found living alongside it, and the spider sometimes chases them away.1

ንክኢላታት መርዚ

ሳይንሳዊ ስም: Caerostris darwini
ጉጅለ: ሳሬታት
ስድራ ቤት: Araneidae2
ቅደም ሰዓብ: Araneae
ክፍለ ዓለማት: ኣፍሪቃ
ሓደጋ ንሰባት: 1 / 5: ቀሊል3

ሓቅታት ካበይ ይመጹ

Darwin's bark spider (Wikipedia (CC BY-SA 4.0))
Caerostris darwini (iNaturalist): ኣስማትን ምምዳብን።
Venom Wiki: ደረጃ ሓደጋ፣ ልሙድ ዓቐንን ግምት ቅልጣፈን ናትና እዮም። ብኸመይ ከም እነውጽኦም ርአ፦ ሓደጋ ብኸመይ ንግምግም.

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