Mujalla:Binciken Dabbobin Kifi, 10(1), shafi na 1-8.
Nau'in Avian (Avian):Wigeon na Eurasian (Mareca penelope), Agwagwa mai lanƙwasa (Mareca falcata), Pintail na Arewa (Anas acuta)
Takaitaccen Bayani:
Shaidu sun nuna cewa tsuntsayen ruwa masu sanyin hunturu sun fi yawa a manyan tafkuna biyu na Kogin Yangtze, Tafkin Gabashin Dong Ting (Lardin Hunan, 29°20′N, 113°E) da Tafkin Poyang (Lardin Jiangxi, 29°N, 116°20′E), idan aka kwatanta da sauran tafkuna, duk da cewa an sami wuraren ajiyar ruwa a wasu wurare. Duk da cewa wannan alaƙar tana iya faruwa ne saboda yawan wuraren zama marasa matsala a manyan tafkuna, ba mu fahimci abubuwan da ke haifar da wannan yanayin ba. Mun bi diddigin motsin hunturu na nau'ikan agwagwa guda uku (Eurasian Wigeon Mareca penelope, Falcated Duck M. falcata da Northern Pintail Anas acuta) ta amfani da na'urorin aika GPS, muna duba bambance-bambance tsakanin manyan tafkuna biyu da sauran ƙananan tafkuna a cikin amfani da wurin zama na agwagwa, tsawon lokacin zama a kowane tafki da kuma nisan da tsuntsayen da aka yiwa alama ke yi a waɗannan wurare. Eurasian Wigeon da Falcated Duck sun zauna sau biyar fiye da haka kuma kusan nau'ikan mazaunin halitta ne kawai suka yi amfani da su a manyan tafkuna biyu (91% na wurare) idan aka kwatanta da tsawon lokacin zama a ƙananan tafkuna, inda suka shafe kwanaki 28-33 a matsakaici (ban da wurin kamawa) kuma suka yi amfani da wurare daban-daban da yawa (gami da kusan kashi 50% a wajen tafkuna). Bincikenmu shine na farko da ya nuna cewa gajeriyar tsawon zama da kuma amfani da dabbobin ruwa daban-daban a ƙananan tafkuna na iya taimakawa wajen bayyana yawan waɗannan nau'ikan halittu a manyan tafkuna a cikin 'yan shekarun nan. Wannan ya kwatanta da raguwar yawansu a ƙananan tafkuna, inda asarar muhalli da lalacewar muhalli suka fi bayyana fiye da manyan tafkuna.
BUGA AKWAI A:
https://doi.org/10.1186/s40657-019-0167-4
