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Bayanai | |
Ƙaramin ɓangare na |
biological risk (en) ![]() |
Yana haddasa |
extinction (en) ![]() |
Gurbacewar ƙwayoyin halitta,[1][2] shine kwararar kwayoyin halitta zuwa cikin dazuka. An bayyana shi a matsayin "watsewar gurbatattun kwayoyin halitta daga kwayoyin halitta da aka yi musu kwaskwarima zuwa ƙwayoyin halitta, ( by cross-pollination), amma ya zo a yi amfani da shi ta wasu manyan hanyoyi. Yana da alaƙa da ra'ayin jinsin halittu na yawan jama'a game da kwararar kwayoyin halitta, da ceton kwayoyin halitta, wanda shine kayan halitta da gangan aka gabatar don ƙara dacewa da yawan jama'a. [3] Ana kiransa gurɓacewar halitta lokacin da ta yi mummunar tasiri ga lafiyar jama'a, kamar ta hanyar ɓarnawar baƙin ciki , da gabatar da abubuwan da ba'a so wanda zai iya haifar da lalacewa.
Masanan ilimin halittu da masu kiyayewa sun yi amfani da kalmar don bayyana kwararar kwayoyin halitta daga cikin gida, na feral, da wadanda ba na asali ba zuwa cikin nau'in 'yan asalin daji, wanda suke ganin ba a so. Suna haɓaka wayar da kan jama'a game da illolin da aka gabatar da nau'ikan ɓarna waɗanda za su iya " haɓaka da nau'in asali, haifar da gurɓataccen ƙwayar cuta ". A fannin noma, noma da kiwo, ana amfani da gurbacewar dabi’ar halitta wajen bayyana yadda kwayoyin halitta ke gudana tsakanin nau’in da aka kirkira da kuma dangin daji. Yin amfani da kalmar "ƙazanta" yana nufin isar da ra'ayin cewa haɗa bayanan kwayoyin halitta yana da illa ga muhalli, amma saboda haɗuwa da bayanan kwayoyin halitta na iya haifar da sakamako iri-iri, "ƙazanta" na iya zama ba koyaushe mafi daidaitaccen bayanin ba. .
Although wolves and dogs have always lived in close contact in Italy and have presumably mated in the past, the newly worrisome element, in Dr. Boitani's opinion, is the increasing disparity in numbers, which suggests that interbreeding will become fairly common. As a result, genetic pollution of the wolf gene pool might reach irreversible levels, he warned. By hybridization, dogs can easily absorb the wolf genes and destroy the wolf, as it is, he said. The wolf might survive as a more doglike animal, better adapted to living close to people, he said, but it would not be what we today call a wolf.
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