Tsire-tsire domin su sake kunna caterpillars cannibals

Mu sau da yawa zaton cewa tsire-tsire ne sosai lumana, kuma sun jira passively a lokacin da suka ci wani caterpillars. Duk da haka, wasu tsire-tsire sun ɓullo da wani sosai m da kuma diabolical hanyar tafiyad da abokan gābansa daga herbivores.

tsaron gida abubuwa

Wani sabon nazari ya nuna yadda wasu shuke-shuke kare kansu daga herbivores: su sanya su juya zuwa cannibals. A binciken, aka buga a mujallar Nature: Lafiyar Qasa da Evolution, ya nuna cewa tumatir shuke-shuke (Lycopersicon lycopersicum) nuna tsaron gida sinadarai sanya su kawo hadari ga larvae (tsutsotsi gwoza) da juna.

Da zarar caterpillars fara ci da ganyen wadannan shuke-shuke, da karshen samar da wani kwayoyin fili kira methyl dzhasmonatom. Wannan abu da ke sa da shuka ne sosai cutarwa ga kwari, haddasa shi ya koma ga cin naman mutane.

"Mutane da yawa kwari an san don zama cannibalistic idan wannan shi ne zama dole, domin rayuwa, - da sanarwa ya ce binciken marubucin Farfesa John Orroka. - A cikin sharuddan shuke-shuke, shi ne haƙĩƙa ake so sakamakon - tilasta wa herbivores ci juna. Kwari cannibals ba kawai amfana da shuka, da ya kashe nasu irin herbivores, amma kuma ba nuna sha'awa da ganye, kamar yadda riga gamsu da suka ji yunwa sauran waƙoƙi. "

Duk da haka, methyl-dzhasmonat yana da wani sakamako. Lokacin da ya fara, don samar da fili, shi abubuwa kamar gaggawa alamar ban tsoro ga makwabta shuke-shuke, gargaɗi game gabatowa makiya. Wannan karfafa wasu shuke-shuke yi amfani da duk wajen don kare kansu da kuma fara samar da kansa hannun jari na methyl dzhasmonata.

Features cin naman mutane

Yana iya ze m cewa caterpillars haka da sauri manta game da shuka-tushen abinci da kuma fara farautar juna, duk da haka, masu bincike bayyana cewa cin naman mutane - wani takobi mai kaifi biyu, wanda na iya zama duka m zuwa rayuwa jinsin da kuma cutar da shi.

"Nyamnyam, a gaskiya, ya sami ta source" m abinci ", - ya ce a cikin wata sanarwa Mataimakiyar farfesan Bret Elderd. - nyamnyam aka azabtar yana da dukan rabbai sunadaran da kuma ma'adanai da cewa tana bukatar, domin shi ne guda kamar yadda ya. A hasara, duk da haka, shi ne cewa aka azabtar ne ma mai cikakken rundunar ga wani pathogens ko parasites cewa kuma iya rayuwa a cikin jiki na nyamnyam. Saboda haka, cin naman mutane - yana da quite m sabon abu, saboda daukawa a high yiwuwar ƙulla wasu cututtuka, idan da mutum zai ci membobin nasu jinsunan. "

idialno makamai

Da wannan a zuciyarsa, da masu bincike son karatu da halaye na cin naman mutane daga kwari don gane yana taimaka ko hana yaduwar pathogens. Idan shi na taimaka wa wannan, sa'an nan amfanin gona kariya inji zai kasance ma fi tasiri fiye, masana kimiyya sun zaci.