Ukujongana neemeko ezintsha ezivelisa iziphumo zotshintsho lwemozulu, isilwanyana ngasinye siziqhelanisa ngandlela thile. Uphononongo olupapashwe kwiphephancwadi i-Nature Ecology lubonisa oko Izidalwa ezanyisayo kunye neentaka kunokwenzeka ukuba ziguquke kwaye ziqhelane notshintsho lwemozulu kunezinye ezinjengee-amphibians kunye nezirhubuluzi.
Ngaba uyafuna ukwazi ngakumbi ngolu phononongo?
“Siyabona ukuba izilwanyana ezanyisayo kunye neentaka zikwazi ukwandisa iindawo ezihlala kuzo, nto leyo ethetha ukuba ziyaziguqula kwaye zitshintshe ngokulula. Oku kunganefuthe elibonakalayo kumanqanaba okuphela kunye nendlela eliya kujongeka ngayo ilizwe lethu kwixesha elizayo, ”utshilo uJonathan Rolland, waseYunivesithi yaseBritish Columbia (Canada) nombhali wophando.
Ukuqhuba isifundo, idatha yosasazo lwangoku lwezilwanyana, iirekhodi zeefosili kunye nalo lonke ulwazi olunxulumene nokuvela kohlobo sele lusetyenzisiwe. Iindidi ezili-11.465 ziye zahlalutywa, apho kuye kwenzeka khona ukubona apho bebehlala khona kwiminyaka engama-270 yezigidi edlulileyo kunye neemeko zokusingqongileyo ebezifuneka ukuze baphile.
Ngokunikwa kweempawu zesilwanyana ngasinye kunye nendlela yaso yokuphila, utshintsho lwemozulu lunokubachaphazela ngandlela thile. Oku kuthetha ukuba ezinye izilwanyana zinokuziqhelanisa ngcono nezona meko zimbi.
Kuba ayisiyiyo yodwa ukutshintsha kwemozulu okukhoyo embalini, Abaphandi bafumanise ukuba olu tshintsho lulo oluchaza apho zihlala khona izilwanyana.
URolland wagxininisa ukuba iplanethi yayifudumele kwaye itropiki de kwaba zizigidi ezingama-40 zeminyaka eyadlulayo, neyayenza indawo efanelekileyo kwiintlobo ezininzi, kodwa, njengoko yapholayo, iintaka nezilwanyana ezanyisayo zikwazile ukuziqhelanisa namaqondo obushushu abandayo. ebavumela ukuba bafudukele kwezinye iindawo zokuhlala.
Kungenzeka ukuba le nyaniso ichaze Kutheni izilwanyana zasemanzini kunye nezirhubuluzi kunqabile ukuba zibonwe eArctic.
Izilwanyana ezikwaziyo ukulala, ukulawula ubushushu bangaphakathi, nokukhusela abantwana bazo ziya kuba nakho ukuziqhelanisa notshintsho lwemozulu.