A Dam beavers - da cikakken injiniya warware rayuwar mutum!

Our kasa shi ne mai arziki ba kawai domin ta albarkatun kasa, amma kuma bambancin abubuwa masu rai, abu mai ruwa-ruwa ko Semi-na cikin ruwa salon. Daya daga cikin haske wakilan wani dabbar beaver. Wadannan himma dabbobi zaki ya share su lokaci a ruwa, inhabiting a qarqashinsu, koguna da tabkuna. Bari mu gano dalilin da ya sa dabbar beaver Dam, kamar yadda ya gina, da kuma wasu janar salon ne wadannan dabbobi.

Dabbar beaver - wanda shi ne shi?

Dabbar beaver talakawa, ko kogi - a Semi-na cikin ruwa dabbobi masu shayarwa na zuwa domin hakori. Shi ne daya daga biyu zamani wakilan da iyali daga cikin wannan sunan. Ya ma'abũcin zumunta - Canada dabbar beaver. Wadannan halittu suna dauke su ne mafi girma a rodent dabba duniya na Old World.

Dam Beavers (photo ne ba a cikin labarin) - shi ne cikakken mai ban mamaki, mafi reminiscent na gine-gine gina ta mutum. Mutane da lokaci ko da ya fara amfani da ginin da fasaha na beavers ga nasu dalilai. Amma za mu magana game da daga baya, amma a yanzu mun koyi yadda za a duba wadannan ban mamaki "workaholics."

Bayyanar da dabba

Beavers - a wajen manyan hakori, cikakken saba da Semi-na cikin ruwa hanyarsa ta rayuwa. namiji jiki na iya zama har zuwa mita 1.5 da kuma tsawo a bushe - up to 36 santimita. A manya auna har zuwa 33 kilo.

Jiki na beavers squat kuma yana da bochonkoobraznuyu form. Biyar-fingered wata gabar jiki, amma taqaitaccen. Hind kafafu fi gaban. Tunda mafi yawan rayuwarsa beavers da za'ayi a cikin ruwa, akwai na musamman iyo membranes tsakanin yatsunsu.

A Jawo na beavers ne daya daga cikin mafi kyau da kuma kunshi m matsara dankon. Underwool a lokacin farin ciki Jawo, amma silky. Launi Jawo - iri-irin saboda ta launi dogara a kan gadar hali beavers. A jikin launi iya bambanta daga haske-kasa-kasa zuwa duhu launin ruwan kasa. Paws da wutsiya ne yawanci baki.

hanyar rayuwa

Kamar yadda aka ambata, da waɗannan dabbobi ne Semi-na cikin ruwa salon. Sun yarda da su shirya tare da bankunan na jinkirin gudãna koguna, tafkunan, tabkuna, kududdufai, ban ruwa canals da quarries. Beavers zai taba rayuwa a cikin m, kuma m koguna da a kududdufai, misãlin a cikin hunturu zuwa kasa.

Tun da dam gina dabbar beaver, hada da daban-daban na itace, da zabi na zama na wadannan dabbobi ne muhimmanci ga gaban tafki bankuna na Bishiyoyi, zai fi dacewa deciduous taushi. A cikin babban rawa a wannan wasa da wani yawa na ruwa da kuma riparian ciyayi (a Vol. H. Ciyawa) cewa siffofin da tushen su rage cin abinci.

Kamar yadda aka sani, waɗannan dabbobi rayuwa a matsayin daya bayan daya ko a cikin kungiyoyin. Yawanci, cikakken iyali hada 5-7 jinsunan - ma'aurata da kuma matasa daga baya kuma a halin yanzu shekaru. Iyakokin nasu ƙasa, wadannan hakori suna labeled amfani da m Musk gland na zuwa da ake kira castoreum.

River "injiniyoyi"

Beavers yana da wani m roko da kuma duniya game da gwani hudu jin dãɗi "ƙungiyoyin injiniyoyi", kazalika da loggers da halitta na musamman dams. Wadannan dabbobi ne ba kawai wata alama ce juriya da kuma aiki tukuru, amma kuma ba mutane wasu kwarewa. Gaskiyar cewa dam beavers - nasara a yi da kuma shirye-Kamfanin bayani da cewa wani mutum ya aro shi daga wadannan kogin yan!

Masana kimiyya sun lura da cewa beavers cewa rayuwa kusa da manyan jikin ruwa ba zai iya gina a duk kuma babu dams. Suna kawai tono kanka wani rami a wani m banki. Amma wannan shi ne banda maimakon na kullum. Har yanzu shahara ga wadannan dabbobi a mamaki ikon bangare kashe dukan dams creeks da kuma muhimmanci fasaha-gina lodges tsibiran m ga makiya.

Yadda cikin beavers gina su dams?

Beavers dam ne ya tashe kamar haka. A dabbobi gnaw a farko tushe na itace, bayan da ta fada. Fallen log - shi ne mai shirye-sanya tushe na dam. Bugu da ari, kan aiwatar da karfafa shi. Beavers yi shi ta amfani da twigs, tsakuwa, silt, lãka, da duwatsun. Yana da ban sha'awa cewa suna gyara su gine-gine yin amfani da wannan "improvised" wajen.

Don me ba su gina dam?

Dam Beavers (hoton da ke ƙasa) wajibi ne na farko na dukkan canza shugabanci na kogin kwarara. Wannan, bi da bi, bukatar kadan dabbobi zuwa ga ruwa flooded da ƙasa na sauran, forming wani kandami a can. Wannan shi ne inda dabbar beaver zai gina kansa a bukka (mazauni).

Ba zato ba tsammani, domin gina gidaje River "injiniyoyi" amfani da wannan kayan aiki kamar yadda a cikin shiri na dams: lãka, da sandunansu, duwatsu, laka, twigs na Bishiyoyi.

Dam Beavers - wannan shi ne watakila mafi muhimmanci bangaren na rayuwarsu. Ba tare da irin wannan ayyuka, su ba za su tsira: kadan dabbobi zai yi babu inda kantin sayar da abinci da kayayyaki, to barci, hibernate da kuma boye daga makiya!

Mene ne girma daga dams?

Beavers dam a karkashin ruwa iya isa wani kauri daga fiye da 3 mita, to saman, suna quntata zuwa 60 santimita. Dabbobi wanda gudanar da halitta kallo a kan wadannan hakori, da'awar cewa su wuraren ne da karfi, da cewa zai iya sauƙi rike a kan ba kawai mutum, amma a dukan doki!

Dabbar beaver lodges kama?

Wadannan gidaje suna kamar inverted kofuna. Yadda ya kamata gina dabbar beaver dam zai kare su daga abokan gābansu, da kuma ruwa ba zai Ambaliyar gidajensu. Saboda haka, babu wani abu to ku ji tsoron dabbobi. Cottages, kamar yadda mai mulkin, da biyu da dakuna. Daya daga cikin su cushe beavers lafiya tsakuwa, da sauran - guzuri.