Quaternary fauna

Quaternary fauna

El lokacin quaternary shine na karshe daya dace da Zamanin Cenozoic. Lokaci ne wanda yake ci gaba a yau kuma wanda ya fara kimanin shekaru miliyan 2.5 da suka gabata kuma wannan ya ƙunshi ci gaban ɗan adam. Quaternary fauna anyi karatun ta yadda yakamata tunda yafi sauki samun bayanan kasancewar wannan kwanan nan.

A cikin wannan labarin zamu gaya muku duk abin da kuke buƙatar sani game da fauna na Quaternary.

Lokacin Quaternary

Lokaci ne mai dauke da kyakkyawan yanayin ilimin kasa. Yana aiki kamar yadda yake a cikin lokutan da suka gabata, kodayake kamar ya ragu sosai. Motsi nahiyoyi yana tafiya a hankali da hankali, kamar sauran hanyoyin sarrafa abubuwa. Ayyukan Orogenic ana haifar dasu ne ta hanyar karo-karo. Koyaya, daga abin da za'a iya gani a cikin karatun daban-daban, a ko'ina cikin quaternary akwai ƙasa da aikin maganan a.

Yawancin jinsunan tsirrai da dabbobi na dabbobi na Quaternary wanda ya bunkasa sosai. Hakanan an lura da ƙaruwar haɓakar nau'in. Saboda sauyin yanayi da bayyanar mutane, dubban nau'ikan sun mutu kuma muna gabatowa bacewa ta shida a duk duniya.

A takaice, ana iya cewa lokaci ne na nutsuwa daga mahangar kasa. Raguwar yanayin yanayin muhalli ya mamaye, yana haifar da dusar kankara da yawa. Koyaya, yanzu muna rayuwa ne a cikin wani lokacin da muke sanka da shi wanda muke saninsa da shi Holocene.

Mutum da fauna na Quaternary

Ci gaban ɗan adam wani abu ne mafi ban mamaki a cikin fauna na Quaternary. Anan ne kakannin farko na mutumin yanzu suka bayyana. Kashi na farko na canjin rayuwar dan adam shine Australopithecus kuma canjin yau shine Homo sapiens. Ba wai kawai ci gaban tunanin ɗan adam aka yi nazari ba, har ma da ƙwarewar zamantakewar su.

Quaternary an lura dashi saboda yana da adadi mai yawa na nau'in nau'i nau'i. Wannan halakar tana faruwa ne a cikin tsari bayan bayyanar mutum. Abin da ake kira megafauna wanda ya kasance a ƙarshen Pleistocene yana ɓacewa cikin hanzari. Masana sunyi la'akari da cewa aikin ɗan adam shine babban dalilin ɓarna. Wannan saboda ɗan adam yana amfani da fauna don samun fa'idodi kamar abinci, tufafi, ƙirar kayan aiki, da sauransu.

Akwai masana kimiyya da yawa da suka firgita saboda sunyi nazarin saurin da wannan halaka take faruwa kuma shine mafi girma a duk tarihi. A yanayin yadda nau'in ke bacewa, ba su da lokacin da za su dace da sabon yanayin muhalli. Bugu da kari, wannan jerin nau'ikan dake cikin hadari yana kara fadada.

Flora da ci gaba

Fulawar ta sami babban cigaba iri-iri a matakin shuke-shuke na ruwa da na duniya. Bambance-bambancen halittu gaba daya ya dogara sosai da yanayin yanayi kuma, godiya ga wannan, dabbobi sun haɓaka wasu halaye don su iya dacewa da wasu abubuwan halittu.

Bayanan burbushin ya nuna cewa akwai adadi mai yawa na tsire-tsire masu zafi waɗanda suka sami damar daidaitawa zuwa yanayin yanayin zafin jiki. Wasu daga cikinsu sune waɗanda suka dace da yanayin sanyi mai sanyi. Lokacin quaternary ya haifar da bayyanar halittu daban-daban tare da halaye irin nasu na yanayi. Wannan yawanci yana tantance nau'ikan shuke-shuke da zasu tsiro a cikinsu.

Mafi yawan shuke-shuke da aka samo a duniya sune angiosperms. Waɗannan su ne waɗanda suke da zuriya mai kariya. Daga baya a Quaternary, gandun daji da gandun daji sun fara bayyana, galibi a matakan wurare masu zafi. Kowane lokaci tsire-tsire sun sami babban ƙwarewa ga wurare daban-daban.

Quaternary fauna

ci gaban mutum na fauna na yau da kullun

Fauna bai bambanta sosai ba daga farkon Quaternary zuwa yanzu. Dabbobin da suka kasance tun farkon lokacin sun sami damar tsira da bambancin muhalli daban-daban. Yawancinsu sun kasance har zuwa yau. Koyaya, akwai wasu mahimman fannoni da za a ambata.

Dabbobi masu shayarwa sune dabbobin da suke da babban cigaba da cigaba. Tunda gungun manyan dabbobi masu shayarwa sun bayyana, ana kiransa megafauna. Daga cikin megafauna akwai shahararrun dabbobi masu shayarwa waɗanda aka yarda da su kamar mammoth, megatherium da saber hakora. Babban halayyar waɗannan dabbobin shine girman su kuma cewa furcin farin ciki ya rufe su. Waɗannan nau'ikan daidaitawa ne don su sami damar tsira da sanyi.

Yawancin dabbobin mallakan megafauna sun riga sun ɓace a yau. Babmoth ya ci gaba a yau tare da giwaye da damisa da saber. Megatherium sune ramuka na yanzu.

Quaternary fauna shine wanda ya sami mafi yawan halaye. A lokacin Holocene, ƙarancin dabbobi saboda ci gaban ɗan adam ya ƙaru. Mutane suna da alhakin halakar da adadi mai yawa na dabbobi. Daga cikin dabbobin alamomin da suka ɓace, za mu iya ambata mammoths, dodos da kyarkecin Tasmanian, da sauransu.

Amphibians sun fi fuskantar barazana kamar yadda aka kiyasta hakan 30% na dukkan nau'ikan zasu iya ɓacewa a thean shekaru masu zuwa. Ci gaban ɗan adam shine abin yanke hukunci a cikin fauna na yau da kullun. Anan ne farkon hominids ya samo asali zuwa yanzul Homo sapiens. Bayan australopithecus da Homo habilis kuma daga bisani Homo erectus. Wannan jinsin ya riga ya sami babban sifa na iya tafiya a tsaye akan gabobi biyu. Wannan ya ba shi damar samun cikakken ra'ayi game da duk filin da ke kewaye da shi.

Hakanan ya sami damar gano wasan kuma yayi gwajin ƙaura zuwa wasu nahiyoyi. Ya Homo Neanderthalensis ya kasance ɗayan mafi mahimmanci. Wannan saboda jikinsa ya dace da ƙananan yanayin zafi. An taimaka tare da taimakon fur din dabbobin da ake farauta kuma an yi suturar su don kare kansu daga sanyi. Kusan duk burbushin wannan jinsin an same su a nahiyar Turai.

Tuni da Homo sapiens Shine wanda ya kafa al'ummomi kuma ya sanya matsayin matsayi na zamantakewar jama'a. Brainwaƙwalwarka tana da cikakkiyar ƙarfi kuma tana iya nazarin batutuwa da fannoni daban-daban da ma'amala da wasu yanayi masu rikitarwa. Ya kuma sami damar haɓaka harshe mai iya magana.

Ina fatan cewa tare da wannan bayanin zaku iya koyo game da fauna na Quaternary.


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