He mea nui te rahi: he roa ake te noho o ngā pārera i te takurua, ā, he iti ake hoki ō rātou nohoanga i ngā roto nui o Haina.

Pukapuka:Rangahau Manu, 10(1), wh.1-8.

Momo (Manu):Te manu Ūropi (Mareca penelope), te pārera pārū (Mareca falcata), te pīni hiku raki (Anas acuta)

Whakarāpopototanga:

E whakaatu ana ngā taunakitanga kua nui ake te noho o ngā manu wai i te takurua i ngā roto nui e rua o te mania waipuke o te awa o Yangtze, arā, te roto o East Dong Ting (Hunan Province, 29°20′N, 113°E) me te roto o Poyang (Jiangxi Province, 29°N, 116°20′E), ki te whakataurite ki ētahi atu roto, ahakoa te whakatūnga o ngā rahui i ētahi atu wāhi. Ahakoa he nui ake ngā nohoanga kāore i te whakararuraruhia i roto i ngā roto nui ake, he iti noa iho ngā āhuatanga e pā ana ki ngā whanonga takitahi o tēnei ia. I whai mātou i ngā nekehanga takurua o ngā momo parera e toru (Eurasian Wigeon Mareca penelope, Falcated Duck M. falcata me Northern Pintail Anas acuta) mā te whakamahi i ngā tuku GPS, me te tirotiro i ngā rerekētanga i waenga i ngā roto nui e rua me ētahi atu roto iti ake i roto i te whakamahinga o ngā nohoanga o ngā parera, te roa o te noho ki ia roto me ngā tawhiti o ia rā e nekehia ana e ngā manu kua tohua i a rātou e noho ana i ēnei wāhi. E rima ngā wā i roa ake ai te noho o te manu pārera o Ūropi me te manu pārera ki ngā roto nui e rua (91‒95% o ngā tūranga) ā, tata tonu i whakamahia e rātou ngā momo noho tūturu i ngā roto nui e rua (91‒95% o ngā tūranga) ki te whakataurite ki te roa o te noho i ngā roto iti ake, i noho ai rātou mō te 28‒33 rā i te toharite (haunga te wāhi hopu) ā, i whakamahia e rātou he maha atu ngā momo noho (tae atu ki te 50% i waho o ngā roto). Ko tā mātou rangahau te tuatahi ki te whakaatu ko te poto ake o te noho me te rerekētanga o te whakamahinga o ngā nohonga e ngā manu pārera ki ngā roto iti ka whai wāhi pea ki te whakamārama i te kukū ā-rohe o te maha o ēnei momo me ētahi atu momo i ngā roto nui rawa atu i ngā tau tata nei. Ka whakatauritea tēnei ki te hekenga o te maha i ngā roto iti ake, i te wāhi i kitea nuitia ai te ngaronga me te hekenga o te nohonga i ngā roto nui ake.