Kusiyana kwa nyengo kwa mitundu ya mbalame za Milu zomwe zimamera m'dera la Dongting Lake, China.

Mitundu (Zinyama):Milu(Elaphurus davidianus)

Magazini:Zachilengedwe Padziko Lonse ndi Kusunga Zinthu Zachilengedwe

Chidule:

Kuphunzira za kugwiritsa ntchito nyama zobwerera m'mbuyo m'malo okhala ndi ziweto n'kofunika kwambiri pakuwongolera bwino kubwezeretsanso ziweto. Nyama zazikulu khumi ndi zisanu ndi chimodzi za Milu (5♂11♀) zinabwezeretsedwa kuchokera ku Jiangsu Dafeng Milu National Nature Reserve kupita ku Hunan East Dongting Lake National Nature Reserve pa February 28, 2016, pomwe nyama 11 za Milu (1♂10♀) zinali zitavala makola otsatira a GPS satellite. Pambuyo pake, mothandizidwa ndi ukadaulo wa GPS collar, kuphatikiza ndi zomwe zimachitika pansi, tinatsata Milu yobwereranso m'malo okhala kwa chaka chimodzi kuyambira March 2016 mpaka February 2017. Tinagwiritsa ntchito Brownian Bridge Movement Model yosinthasintha kuti tiyerekezere kuchuluka kwa ziweto za Milu 10 zobwerera m'mbuyo (1♂9♀, imodzi yaikazi inachotsedwa chifukwa kolala yake inagwa) ndipo nyengo ya nyengo ya Milu 5 yaikazi yobwerera m'mbuyo (yonse inatsatiridwa kwa chaka chimodzi). 95% yaikazi inayimira kuchuluka kwa ziweto, ndipo 50% yaikazi inayimira madera ofunikira. Kusintha kwakanthawi kwa chiwerengero cha zomera zomwe zimasiyana pang'ono kunagwiritsidwa ntchito poyesa kusintha kwa kupezeka kwa chakudya. Tinayesanso kugwiritsa ntchito zinthu zomwe Milu yobwezeretsedwa m'malo osungiramo nyama powerengera chiŵerengero cha malo okhala m'madera awo apakati. Zotsatira zake zinasonyeza kuti: (1) malo okwana 52,960 okonzedwanso anasonkhanitsidwa; (2) panthawi yoyambirira yokonzanso, kukula kwapakati kwa malo okhala a Milu yobwezeretsedwa m'malo osungiramo nyama kunali 17.62 ± 3.79 km.²ndipo kukula kwapakati pa madera apakati kunali 0.77 ± 0.10 km²(3) kukula kwapakati pa malo okhala a nswala zazikazi pachaka kunali 26.08 ± 5.21 km²ndipo kukula kwapakati pa madera apakati pachaka kunali 1.01 ± 0.14 km²Poyamba kubzalanso ziweto; (4) Poyamba kubzalanso ziweto, malo okhala ndi madera apakati a Milu yobwezeretsedwa ziweto anakhudzidwa kwambiri ndi nyengo, ndipo kusiyana pakati pa chilimwe ndi nyengo yozizira kunali kwakukulu (malo okhala: p = 0.003; madera apakati: p = 0.008); (5) malo okhala ndi madera apakati a nswala zazikazi zobwezeretsedwa ziweto m'dera la Dongting Lake m'nyengo zosiyanasiyana kunawonetsa mgwirizano woipa kwambiri ndi NDVI (malo okhala: p = 0.000; madera apakati: p = 0.003); (6) Milu zazikazi zambiri zobwezeretsedwa ziweto zinasonyeza kuti zimakonda kwambiri minda m'nyengo zonse kupatula nyengo yozizira, pamene zinkayang'ana kwambiri kugwiritsa ntchito nyanja ndi gombe. Malo okhala a Milu yobwezeretsedwa ziweto m'dera la Dongting Lake poyamba kukolola ziweto kunasintha kwambiri nyengo. Kafukufuku wathu akuwonetsa kusiyana kwa nyengo m'malo okhala a Milu yobwezeretsedwa ziweto ndi njira zogwiritsira ntchito chuma za Milu payekha poyankha kusintha kwa nyengo. Pomaliza, tapereka malangizo otsatirawa oyang'anira: (1) kukhazikitsa zilumba zokhala ndi malo okhala; (2) kukhazikitsa kayendetsedwe ka anthu m'dera limodzi; (3) kuchepetsa kusokonezeka kwa anthu; (4) kulimbikitsa kuyang'anira kuchuluka kwa anthu popanga mapulani osungira mitundu ya zamoyo.