I-Blue whales itshintshe i-tune yabo

Kumashumi eminyaka embalwa edlulileyo imithombo ye-Blue Whale ihla iphantsi kwi-pitch-kunye nokuphindaphinda kwakhona kumanani abo kunokuba sisizathu. I-Christopher Intwalas.

Iminenga eluhlaza okwesibhakabhaka zezona zilwanyana zinkulu zibekho emhlabeni. Kodwa bahlala nzima ukulandela umkhondo. Kuba bahlala phantsi kwamanzi esinokuzibona ngokulula - kwaye bahlala kwiindawo ezikude, njengolwandle olusezantsi. Kodwa iingoma zeminenga zinokuhamba amakhulu eekhilomitha zaphantsi kwamanzi- ke izazinzulu zihlala zimamela endaweni yoko.

Kodwa ezi bhayolo ze-biologing ziqaphele imeko yam eyimfihlakalo: ukuba i-biele ethile ye-BLOLE ithotywe ngokuthe ngcembe kwisandi, ngokuhamba kwexesha. Umzekelo, nantsi ukuba ubize ngo-2002, walandelwa ngo-2017. <2002-2017 tsiza>

"Iqatshelwe kwiminenga eluhlaza okwesibhakabhaka emhlabeni jikelele. Ke le nto kufuneka ibe nenkcazo kwihlabathi liphela." U-Emmauwelle Leroy yi-bioacoustican kwiDyunivesithi yaseNew South Wales e-Australia, owenza umsebenzi kwiYunivesithi yaseFrance eFransi.

Iqela lakhe liqinisekisile le nto ibamba i-popul lalts yeminenga eluhlaza okwesibhakabhaka kumazantsi e-India, nayo. Kwaye bacebisa ukuba sibe sisizathu sokuba amanani omnenga ahlaziyekile kwiintsuku zomKapteni uAhabhi. Imonga ngakumbi kuthetha ukuba abantu abayi kudanduluka ngokuvakalayo ukuze baviwe ngamanye amaqula. Kwaye ngenxa ye-anatomication pacial kwindlela yeminenga evumayo, inene, inene, iphantsi.

Izazinzulu zinenye ithiyori, nayo, enokubambisa ikhonsathi kunye nowokuqala: yiyo loo nto imisonga icula ngokuthobekileyo - kwaye amanzi olwandle aqhubela phambili. Ukubhalwa ngokupheleleyo kukwiphepha lejenali yophando lwe-geophysical: iilwandlekazi. [Emmanuelle c. leroy et al., Ixesha elide kunye notshintsho lwamaxesha onyaka we-Wiele Bigh Social kwi-Eason yoLwandlekazi lwaseIndiya

I-leroy kunye neqela lakhe zaphawula enye enye indlela yethutyana: I-Ezantsi ye-Earner Hoby Hoby Honey iphakame kwi-pitch ngexesha lehlobo lase-Arestraliyo. Mhlawumbi kumzamo wokuva malunga nokuqhekeka i-icebergs.

"Njengaxa ubeka ityhubhu yomkhenkce kwisiselo sakho, ungayiva i-rack. Ke ngokufanayo kumkhenkce-kuya kuba kukhulu kwaye ungayiva isitya solwandle."

Ukusombulula ezi fihlakalo ngokuqinisekileyo, izazinzulu zithi, kufuneka siqhubeke nokumamela, kwaye sibe neliso ekutshintsheni iikhemikhali zekhemikhali kunye ne-acoustic zelwandle. Ukubona ukuba yeyiphi kwezi mbono aphuma ngaphandle. Asukuba ubambe amanzi.

Yintoni engakumbi, ukuba unayo nayiphi na into enomdla kwi- Eva ye-Eva ye-Eva ye-Eva okanye i - Eva Sud Pad & I - EVA PROCCON PAD , nceda ukhululeke ukunxibelelana nathi.

Iqela le-melors

2018.12.21

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