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Autumn Time Budget and Diurnal Rhythm of Black-Necked Crane

Autumn Time Budget and Diurnal Rhythm of Black-Necked Crane

Tong Zhang1,2, Feng Xu1,*, Ming Ma1 and Peng Ding3

1CAS Key Laboratory of Biogeography and Bioresources in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
2Central South Forest Inventory and Planning Institute of State Forestry Administration, Changsha 410014, China
3Xinjiang Academy of Environmental Protection Science, Urumqi 830011, China

*     Corresponding author:


In the autumn of 2011, both the time budget and diurnal rhythm of behavior of black-necked crane (Grus nigricollis) were studied at Altun Mountain National Nature Reserve, Xinjiang, China. The results showed that foraging was the main behavior of cranes in autumn, accounting for 69.07±1.64% of the diurnal time budget, followed by alert (19.38±0.87%), locomotion (5.97±0.49%), maintenance (2.88±0.60%) and other behavior (2.70±0.44%). In addition, we also compared the behaviors of black-necked cranes in different periods and places. The results indicate that the diurnal time budgets of cranes in autumn in breeding area are more like the wintering budget in wintering area than breeding season in breeding area. Cranes changed their diurnal time budget and behavior rhythm to adapt the environmental and social changes.

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Pakistan Journal of Zoology


Pakistan J. Zool., Vol. 56, Iss. 3, pp. 1001-1500


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