Nau'u (Dabbobi):Milu (Elaphurus davidianus)
Jarida:Ilimin Halittar Duniya da Kariya
Takaitawa:
Nazarin amfani da kewayon gida na dabbobin da aka sake yi suna da mahimmanci don kulawar sake dawowa da sanarwa. An sake dawo da mutane goma sha shida Milu manya (5♂11♀) daga Jiangsu Dafeng Milu National Nature Reserve zuwa Hunan East Dongting Lake National Reserve a ranar 28 ga Fabrairu, 2016, daga cikinsu mutane 11 Milu (1♂10♀) suna sanye da tauraron dan adam GPS tracking. abin wuya. Daga baya, tare da taimakon fasahar abin wuya na GPS, haɗe tare da lura da sa ido kan ƙasa, mun bi diddigin Milu da aka sake buɗewa har tsawon shekara guda daga Maris 2016 zuwa Fabrairu 2017. Mun yi amfani da Motsi Motsi na Gadar Brownian mai ƙarfi don ƙididdige kewayon gida na mutum 10. rewilded Milu (1♂9♀, mace 1 an kawar da ita saboda abin wuyanta ya fadi) da kuma yanayin gida na yanayi na 5 mace Milu (dukkan su ana bin su har zuwa shekara guda). 95% matakin yana wakiltar kewayon gida, kuma matakin 50% yana wakiltar ainihin wuraren. An yi amfani da bambance-bambancen ɗan lokaci a cikin daidaitattun ƙididdigar ciyayi don ƙididdige canje-canje a cikin wadatar abinci. Mun kuma ƙididdige amfani da albarkatun Milu da aka sake yin amfani da su ta hanyar ƙididdige adadin zaɓi na duk wuraren zama a cikin ainihin wuraren su. Sakamakon ya nuna cewa: (1) an tattara jimillar gyare-gyaren daidaitawa guda 52,960; (2) a lokacin farkon matakin rewilding, matsakaicin girman kewayon gida na Milu da aka sake dawowa ya kasance 17.62 ± 3.79 km2kuma matsakaicin matsakaicin girman wuraren shine 0.77 ± 0.10 km2; (3) matsakaicin matsakaicin kewayon gida na shekara-shekara na barewa mace shine 26.08 ± 5.21 km2kuma matsakaicin matsakaicin babban yanki na shekara-shekara shine 1.01 ± 0.14 km2a farkon mataki na rewilding; (4) a lokacin farkon mataki na rewilding, da gida kewayon da core yankunan na rewilded Milu sun kasance da matukar tasiri a kakar, da kuma bambanci tsakanin rani da kuma hunturu yana da muhimmanci (gidan kewayon: p = 0.003; core yankunan: p = 0.008) ; (5) kewayon gida da mahimman wurare na barewa na mata da aka sake sakewa a cikin yankin Dongting Lake a cikin yanayi daban-daban sun nuna alaƙa mara kyau tare da NDVI (gidan gida: p = 0.000; yankuna masu mahimmanci: p = 0.003); (6) Mafi yawan matan Milu da aka sake dawowa sun nuna fifiko ga filayen noma a kowane lokaci ban da lokacin hunturu, lokacin da suka mai da hankali kan amfani da tabki da bakin teku. Kewayon gida na Milu da aka sake fasalin a cikin yankin tafkin Dongting a farkon matakin rewilding ya sami sauye-sauye na yanayi. Bincikenmu yana bayyana bambance-bambancen yanayi a cikin kewayon gida na Milu da aka sake dawowa da dabarun amfani da albarkatu na mutum Milu don amsa canje-canjen yanayi. A ƙarshe, mun gabatar da shawarwarin gudanarwa masu zuwa: (1) don kafa tsibiran mazaunin; (2) aiwatar da haɗin gwiwar al'umma; (3) don rage tashin hankalin ɗan adam; (4) don ƙarfafa sa ido kan yawan jama'a don tsara tsare-tsaren kiyaye nau'in.
ANA BUGA A NAN:
doi.org/10.1016/j.gecco.2022.e02057
