Izazinzulu ezifunda ulwimi olurhabaxa lwe-Northern elephant seal zinethemba lokuqonda indlela izilwanyana ezanyisayo ezinkulu ezisebenzisa ngayo amazwi ukunqanda imilo ebiza imali eninzi kunye nokwakha iindawo zazo - kunye nokuba singabagcina njani abantu abakhulayo bekhuselekile.



Bexhobe ngemibhobho ye-microphone, abaphandi abavela kwi-UC Santa Cruz’s Institute of Marine Sciences baye bachitha amakhulu eeyure kwiindunduma ezizaliswe yibhrashi, ezinomoya kunye nonxweme lwaseAño Nuevo State Park, belandela umkhondo weendlovu ezingaphezu kwe-160 zetywina kwaye berekhoda ezinye zezikhalazo kunye nokugquma kwazo.

Ezi zizilwanyana ezinomdla, kwaye zisebenzisa izandi kwiindawo ezibaluleke ngokwenene zobomi babo, utshilo uBrandon Southall, isazi saselwandle kunye ne-UC Santa Cruz esebenza naye ephanda ngonxibelelwano lwendlovu.





Njengokubonisa ukuba ngubani umphathi. Izazinzulu zicinga ukuba amadoda asebenzisa iminxeba ekhalayo ukunqanda umlo-kufana nokubetha-thethana phakathi kwabafana ababini ebharini - kuba amatywina avakalisa amazwi ngaphambi kokuba abethe. Amaxesha amaninzi, imingeni isonjululwa ngokufowuna kuphela.

Iyamangalisa indlela enqabile ngayo imilo yomzimba, utshilo uColleen Reichmuth, umlawuli wophando kwi-UCSC's Pinniped Cognition kunye neLebhu yeeNkqubo zeSensory.



Kodwa xa amadoda amabini alingana nomlo weFord Explorer, inegazi kwaye inobundlobongela.

Emva kokuba zizingelwe de zitshabalale, i-Northern elephant seal iye yaphinda yaphinda yada yaphinda yaphela. Ngoku, izazinzulu zixhalabile malunga neempembelelo ezinokuthi zibekho ebantwini kuluntu olukhulayo, kwaye banethemba lokuba ukuqonda unxibelelwano lwamatywina kunye nombutho kuya kunceda ukukhusela i-bulbous-nosed cutie-pies.



Okukhona sinokufunda ngakumbi, ngakumbi sinokuqikelela ukuba baya kusabela njani kwezi ntlobo zongenelelo kwaye sizikhusele ngcono, utshilo uCaroline Casey, umququzeleli wophando lweprojekthi.

Yaye xa kuphela ubusika, kusenokubonakala kuthe cwaka xa utyelele eAño Nuevo kuba uninzi lweentini zaselwandle luwushiyile lo mhlaba uthandwayo wokuzalela. Noko ke, ungaphazami, aphakathi kwezona zilwanyana zinengxokozelayo emhlabeni. Iminxeba yabo inokufikelela kwi-130 decibels, ekhwaza njengehammer, kunye nezandi ezisezantsi ngokwaneleyo ukungcangcazela isanti ebangqongileyo. Ukuqonda ukuba yintoni yonke ingxabano, i-Southall iye yarekhoda ii-rumblings zabo ukusuka kwii-3 iinyawo kude.



Kuyinto ephambeneyo ukucinga ukuba usondele kakhulu kwi-4,000-pondo yamadoda ngelixa bezama ukulwa, wathi. Ungayiva ibetha isifuba sakho kunye ne-sinus cavities.

Iqela lifumanise ukuba indoda nganye inomnxeba owahlukileyo. UCaroline ubazi kakuhle aba bantu kangangokuba angakwazi ukubabona kwelinye icala leendunduma, utshilo uReichmuth ngoCasey.



U-Año Nuevo docent uRodger Alsobrook ufanisa ingxolo nokuqalisa isithuthuthu sase-Harley-Davidson ngaphakathi kwendawo yokwenza umthambo. Undwendwe lwasePaki uDianne France, waseSan Jose, uthe kufana nomntu owele ihagu nenja. Luhlobo lokufutha ngokukrokrayo.

Enyanisweni, iirekhodi zenzululwazi ziqulethe zonke ezi mpawu. Indoda enye, i-3C, ivelisa uthotho olulinganisiweyo lwe-clanging pulses. Omnye umnxeba unesingqi sehashe eligabadulayo. Ezinye iinkunzi zivakala njengeesarha zetsheyini, abadanisi beflamenco okanye bashixiza amakhadi. Abanye, njenge-3C, baqala kwaye baphelise iifowuni zabo ngokuchukumisa okukhethekileyo - i-snorty ikhula, ngokutsho kweReichmuth. Ngexesha lokuzala, izazinzulu zinika izilwanyana uphawu lwazo lokuzazisa ngokutsiba ngasemva ngedayi yeenwele ezimnyama ezingagungqiyo.

Ngeli xesha lonyaka, izazinzulu zisebenzise isithethi ukusasaza iminxeba erekhodiweyo yeendlovu kumadoda athile elunxwemeni. Elinye itywina, xa lisiva irekhodi, lajika laza labaleka. Omnye watyhola isithethi. Sibe nezithethi ezimbalwa ezigityisiweyo, utshilo uReichmuth.

Iimpendulo ezahlukeneyo zibonisa ukuba iminxeba ibalulekile, kwaye inyathelo elilandelayo kukufumana oko kufakwe kwikhowudi kwii-orations zegrunty. Akukho nto malunga nesandi esikuvumela ukuba wazi ukuba yindoda enkulu, okanye yindoda ebalaseleyo, utshilo uReichmuth.

Xa amatywina ebuya ebusika obuzayo, izazinzulu ziya kube zilapho kwakhona. Luhlobo lokulutha, utshilo uReichmuth. Ngamanye amaxesha abantu babuyela emva.

Northern Elephant seal facts

Abemi: 160,000-180,000 ehlabathini lonke; 2,500-4,000 kuNyaka oMtsha
Wabonwa okokuqala ngoNyaka oMtsha: ngowe-1955
Amadoda: ubunzima ukuya kwiitoni ezi-2.5, ubude be-14-16 ubude
Iimazi: ubunzima ukuya kwi-1 ton, i-10-12 ubude beenyawo
Ngexesha lokuzala: Bazila ukutya. Amadoda anokulahlekelwa ngaphezu kweekhilogram ezili-1,000; amabhinqa alahlekelwa sisiqingatha sobunzima bomzimba wawo.
Iintsana: 75 pounds ekuzalweni, 4 iinyawo ubude
Umongikazi: Iintsuku ezingama-28, kubisi olunamafutha angama-55 ekhulwini
Abalunyulayo: 250-350 pounds, 6 iinyawo ubude
Ubomi obulindelekileyo: Amadoda, iminyaka eyi-12-14; abafazi, 18-22 iminyaka
Ngowe-1892: Ayengaphantsi kwe-100 amatywina eendlovu aseMntla.
IiHarems: 50 amabhinqa kwindoda nganye

Umthombo: California State Parks




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