Dub-throated loon: piav qhia, kev saib xyuas nta, chaw nyob thiab qhov tseeb nthuav

Cov txheej txheem:

Dub-throated loon: piav qhia, kev saib xyuas nta, chaw nyob thiab qhov tseeb nthuav
Dub-throated loon: piav qhia, kev saib xyuas nta, chaw nyob thiab qhov tseeb nthuav

Video: Dub-throated loon: piav qhia, kev saib xyuas nta, chaw nyob thiab qhov tseeb nthuav

Video: Dub-throated loon: piav qhia, kev saib xyuas nta, chaw nyob thiab qhov tseeb nthuav
Video: VA - Heavy Dub | Full Compilation 2024, Kaum ib hlis
Anonim

Loons yog waterfowl, uas yog me ntsis me me dua li cov goose. Lub peculiarity nyob rau hauv qhov tseeb hais tias lawv paws yog kiag li unadapted mus rau hauv av. Tau txais ashore, tus noog raug yuam kom xyaum nkag mus rau saum npoo nrog nws lub plab, tab sis yuav luag tsis muaj ib qho ntawm txoj kev txav no. Yog li ntawd, tag nrho lub neej ntawm loons tshwm sim nyob rau hauv dej - mating games, zaub mov, pw tsaug zog thiab so. Muaj ob peb hom loons - liab-caj, dawb-caj dab, dawb-billed, tab sis feem ntau ntawm cov no yog dub-throated.

Ntxhais hmoob dub

Cov txiv neej thiab poj niam yuav luag zoo ib yam - lub plab yog npog nrog plaub dawb, thiab saum - greyish-xim av lossis dub plumage nrog dawb glimpses. Koj tuaj yeem paub qhov txawv ntawm tib neeg los ntawm lub caj dab qauv - txhua tus muaj ib tus neeg.

looj tsom iav dub
looj tsom iav dub

Tus qauv tsis pom tsuas yog thaum lub caij ntuj no, thaum tag nrho cov xim ntawm cov noog hloov mus ua ib qho monotonous dua. Loons txawv ntawm geese thiab ducks nyob rau hauv lawv lub davhlau style - lawv stoop me ntsis thiab khoov lawv lub caj dab. Cov tis ntawm cov noog yog me me, tawm tsam qhov ntev ntawm tib lub ducks, thaum ob txhais ceg protrude rov qab - lawv feem ntau tsis meej pem nrog tus Tsov tus tw. Peb ntiv tes pem hauv ntej ntawm tus noog yog txuas nrog ib daim nyias nyias. Lub ntsej muag dub muaj lub suab nrov - hauv nws qhov kev ua si koj tuaj yeem hnov cov suab qw thiab quaj. Nyob rau hauv ib tug dub-throated tus neeg, lub quaj zoo li lub creaking ntawm ib tug crow. Hmoov tsis zoo, lub loon yog nyob rau theem ntawm kev ploj tuag, yog li tsuas yog lub sijhawm los cawm cov tsiaj yog Phau Ntawv Liab. Lub suab ntawm lub suab dub-caj dab nyob rau hauv lub caij mating suab zoo li "ga-ga-ga-rrah", uas muab nws lub npe.

Habitat

Nws yuav tsum tau muab sau tseg tam sim ntawd tias nws tsis tsim nyog yuav ua rau lub ntsej muag nrog tus eider. Txawm tias muaj tseeb hais tias cov npe ntawm cov noog yog heev zoo sib xws, lawv nyob rau txawv kev txiav txim. Yog lawm, thiab noog tau raug tua rau qhov kev xav tau sib txawv - eiders tau muaj nuj nqis rau lawv cov fluff, thiab loons yog qhov tseem ceeb "loon necks" rau cov poj niam lub kaus mom.

looj tsom iav dub
looj tsom iav dub

Tus noog hnyav txog peb kilograms, thiab qhov ntev ntawm nws cov paws kuj tawm tsam - tsawg kawg yog 10.5 centimeters. Cov neeg European dub-throated diver nyob rau ntawm cov pas dej loj, thiab txuas nrog rau qhov chaw nyob tau ntau xyoo. Ib tug noog lub zes feem ntau zoo li qhov no - lub platform trodden ntawm ntug dej. Qee lub sij hawm lub loon nteg nws cov qe nyob rau hauv ib pawg ntawm cov nroj tsuag tuag, uas nws thawj zaug nteg tawm ntawm thaj tsam li ib nrab ib 'meter' dav. Tab sis yog tias lub zes nyob ze rau ntawm dej - yog li ntawd koj tsis tas yuav mus rau nws los ntawm av.

Tsis muaj qe ntau dhau ntawm tus noog lub clutch - feem ntau yog ib lossis ob. Cov xim ntawm cov qe camouflages lawv zoo los ntawm cov tsiaj txhu - txiv ntseej-xim avqe xyaum ua ke nrog cov nroj tsuag ntug hiav txwv. Lawv ncav cuag yuav luag kaum centimeters nyob rau hauv ntev, thiab txhua tus ntawm lawv ncav cuag li 105 grams ntawm qhov hnyav.

European dub-throated loon
European dub-throated loon

Nws yog los ntawm kev tso koj tuaj yeem txiav txim siab seb nws lub zes yog - lub caj dab liab lossis lub caj dab dub. Thawj lub qe me dua. Ob tus neeg koom tes incubate lub masonry - lawv hloov ib leeg, cia lawv tus ntsuj plig mate so nyob rau hauv dej, tsaug zog thiab noj. Lub sij hawm hatching yuav kav txog ib hlis - tus me nyuam qaib tuaj yeem loj hlob ob qho tib si tom qab 25 hnub thiab tom qab 30. Cov menyuam mos nyob hauv lub zes rau lub sijhawm luv luv - tsis pub ntau tshaj ob hnub. Tom qab ntawd cov neeg laus pib accustom cov me nyuam qaib mus rau hauv dej. Thawj qhov kev tawm zoo li no - cov menyuam qaib nce mus rau sab nraum qab ntawm ib tug neeg laus noog thiab nqis los rau hauv dej zoo li ntawd. Tsis ntev koj tuaj yeem saib cov menyuam yaus ua luam dej ntawm nws tus kheej li cas ntawm ob niam txiv. Ua tib zoo tiv thaiv lawv kom tsis txhob muaj xwm txheej.

dub-throated loon liab phau ntawv
dub-throated loon liab phau ntawv

Kev ua neej

Loons yog tus ua luam dej zoo heev. Nws tsis raug nqi dab tsi rau tus noog dhia mus rau qhov tob ntawm 21 meters, thaum nyob hauv dej li ob feeb. Nyob rau tib lub sijhawm, tus noog folds nws tis rau ntawm nws nraub qaum, thiab npog feathers tiv thaiv lawv los ntawm ntub dej. Lub voj voog dub-ntsuab nrawm nrawm tawm tsam cua rau lub sijhawm ntev ua ntej tawg tawm ntawm cov dej. Lub neej expectancy ntawm ib tug noog yog txog 20 xyoo. Lub hauv paus ntsiab lus ntawm swan fidelity kuj tseem siv tau ntawm no - tau tuaj ua ke ib zaug hauv lub neej, cov khub niam txiv tsis tawg mus txog thaum tuag. Cov noog mus rau hiav txwv sov rau lub caij ntuj no. Cov tib neeg ntawm thawj xyoo ntawm lub neej kuj tseem nyob ntawd. Thaum lub caij nplooj ntoos hlav, loons ya rov qab, tab sis lig heev,thaum dej ntshiab lawm.

black-throated loon luv piav qhia
black-throated loon luv piav qhia

Cov kev hloov pauv txaus nyiam tshwm sim rau cov noog thaum lub caij ntuj no. Nyob nruab nrab ntawm cov hnub frosty, cov loons pib poob lawv cov plaub ya, uas ua rau lawv tsis muaj peev xwm ya tau tsawg kawg 1.5 lub hlis.

Loon yos hav zoov

Lub looj tsom iav dub yog qhov tseem ceeb rau tib neeg. Cov neeg ntawm Far North siv nqaij qaib rau zaub mov, tsis tas li ntawd, nws tsis yooj yim rau ntes ib loon. Feem ntau cov noog lawv tus kheej yog entangled nyob rau hauv nuv ntses nets, los ntawm qhov uas nws tsis yooj yim sua kom tau lawv. Ib zaug dhau los, cov kws txiav plaub hau hauv zos tau xaws cov poj niam lub kaus mom tshwj xeeb los ntawm cov tawv nqaij loon (dawb plab thiab lub mis), tab sis hnub no cov khoom siv tes ua no tsis cuam tshuam. Lub voj voog dub tsis nyiam qhov chaw ze ntawm tib neeg - tus noog tuag los ntawm cov av sab laug tom qab tib neeg, feem ntau yos hav zoov rau nws pib lom zem. Yog li ntawd, nyob rau hauv tej lub teb chaws muaj txawm ib tug loon festival. Thaum cov noog tuaj txog ntawm lub hiav txwv sov, tib neeg ntsib lawv, muab khoom noj txom ncauj rau lawv thiab npaj ib qho chaw so. Peb kawm tau dab tsi ib tug dub-throated loon zoo li. Cov lus piav qhia luv luv yuav ua kom pom tseeb tias koj tuaj yeem paub qhov txawv nws nyob hauv av, piv txwv li, los ntawm cov os.

Thaum tus noog ua luam dej, tsuas yog lub taub hau qis, ib qho me me ntawm sab nraub qaum thiab lub caj dab me ntsis pom ntawm qhov chaw - qhov tsaws ntawm tus noog no qis heev. Yog tias tus noog ntxhov siab, nws txawm nkag mus tob rau hauv dej, thaum kawg tsuas yog lub taub hau thiab ib feem me me ntawm caj dab saum npoo dej.

phau ntawv liab suab ntawm cov dub-throated loon
phau ntawv liab suab ntawm cov dub-throated loon

Thaum ntshai, nws tsuas dhia hauv qab dej, tos ntev heev kom txog thaum muaj xwm txheej dhau mus. Lub ntsej muag dub tau yooj yim txav hauv qab dej - zoo li lub cork tso rau hauv ib feeb, nws tuaj yeem npog qhov deb ntawm 500 meters. Qhov no cawm nws dim ntawm ntau tus neeg yos hav zoov uas yuam cov noog nrog ib tug os thiab tos kom nws tshwm sim nyob rau tib qhov chaw.

Nyob me ntsis txog lub hli dub

Hmoov tsis zoo, muaj tsawg thiab tsawg tus neeg ntawm hom no. Cov pas dej qhuav qhuav, qhov xwm txheej yog littered los ntawm tib neeg txhais tes - tag nrho cov no ua rau lub fact tias cov noog yuav tsum tau nrhiav chaw nyob tshiab, thiab qhov no yog ib qho kev pheej hmoo tsis tu ncua uas cov dub-throated loon raug nthuav tawm. Phau Ntawv Liab txwv tsis pub tua cov [noog], tab sis qhov no tsis txwv tib neeg. Raws li cov ntaub ntawv tshiab tshaj plaws, cov noog tau txo qis ntau zaus, hauv qee thaj chaw lawv tau ploj mus tas li. Niaj hnub no, dub-throated loons tuaj yeem pom tsis tshua muaj - cov noog sim nyob hauv thaj chaw deb, deb ntawm tib neeg pom, feem ntau ntawm cov pas dej hav zoov loj. Piv txwv li, nyob rau hauv lub Krasnodar Territory, cov noog no nyob rau hauv ib tug tshwj xeeb cov ntaub ntawv - muaj txog 500 tus neeg ntawm no, uas yog ib tug tsawg tus naj npawb rau cov feem ntau hom loons.

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