Tus plas txwv tsis pub nyob qhov twg?

Cov txheej txheem:

Tus plas txwv tsis pub nyob qhov twg?
Tus plas txwv tsis pub nyob qhov twg?

Video: Tus plas txwv tsis pub nyob qhov twg?

Video: Tus plas txwv tsis pub nyob qhov twg?
Video: tu txiv tsi pab nkauj tawm tshiab-Cover(niam vamkhwb&paj yeeb& xis xyooj&ntxawm xyooj&niam npawglem) 2024, Hlis ntuj nqeg
Anonim

Woodlands, ntoo hav dej hauv qab, ntoo swamps Zoo siab feem ntau cov ntoo tuab thiab tuab nrog tsuas yog tawg tawg, tshwj xeeb tshaj yog nyob rau hauv qis qis thiab swampy. Feem ntau nyob rau hauv deciduous los yog sib xyaw ntoo nyob rau sab qab teb sab hnub tuaj, tab sis nyob rau sab qaum teb thiab qaum teb sab hnub poob yuav pom nyob rau hauv cov ntoo coniferous paub tab.

Lub xeev twg muaj qhov txwv tsis pub muaj sia nyob?

Barred owls muaj ntau haiv neeg nyob rau Eastern North America, tab sis tau nthuav dav lawv thaj tsam mus rau sab hnub poob ntawm North America qhov chaw uas lawv suav tias muaj kev cuam tshuam. Cov hav zoov paub tab yog lawv qhov chaw nyob, tab sis lawv tuaj yeem ua rau muaj ntau yam gradients ntawm cov ntoo qhib.

Puas txwv plas nyob hav zoov?

tis thiab tail yog txwv xim av thiab dawb.… Barred Owls nyob hauv loj, loj hav zoov ua los ntawm ob tsob ntoo deciduous thiab evergreens, feem ntau nyob ze dej. Lawv zes hauv tsob ntoo kab noj hniav. Nyob rau sab qaum teb hnub poob, Barred Owls tau tsiv mus rau qhov qub-loj hlob coniferous hav zoov, qhov chaw lawv sib tw nrog cov hem Owl.

Tswv plas thaj tsam loj npaum li cas?

Txhim owls mates rau lub neej, rov siv lawv lub zes rau ntau xyoo, thiab tswj thaj chaw ntawm 200 - 400 acres loj. Barred owls yog thaj chaw muaj zog heev thiab nyob hauv lawv thaj chaw rau feem ntau, yog tias tsis yog tag nrho, ntawm lub xyoo.

Yuav ua li cas yog lub tsev ntau ntawm tus plas txwv?

Mean txhua xyoo khub tsev ntau yam ntawm cov plas txwv tsis pub muaj 905 ha (nqi=587-1, 477, N=4 khub) thaum 'pob plas nruab nrab 4, 750 ha (ntaus=2, 430-7070, N=2 khub). Barred owl khub tau pom ntau dua hauv tsev sib tshooj (kuv ib qho=398, ntau yam=16-62%) dua li pom owl khub (txhais tau tias=18%, ntau yam=17.1- 19.1%).

Pom zoo: