波斑鸨雏鸟生长发育初步研究

Study on the Growth of Nestlings of Chlamydotis undulata macqueenii

对新疆准噶尔盆地东部木垒县境内波斑鸨 (Chlamydotisundulatamacqueenii) 雏鸟的生长发育进行了观察和研究。结果表明 ,在雏鸟初生的第一个月内 ,体重和外部器官生长迅速 ,生长速度随着日龄的增长而减缓。在生长发育过程中 ,体重的增长保证了生长发育所需营养的供给和热调节机能的发育 ,较其它外部器官更重要。在外部器官的生长发育中 ,跗 止口庶和翅的发育要优先于头骨和尾的发育 ,这与波斑鸨是早成鸟及其营地栖生生活的习性有关。

The growth of nestlings of birds is paid a great attention by many scholars in their studies on the biology of birds, and many achievments have been obtained. Chlamydotis undulata is the first-class protected bird in China. The distribution, present situation, migration route, reproduction, population dynamic, habitats selection, etc of this bird have been extensively studied. In this paper, the growth of the nestlings of Chlamydotis undulata macqueenii is researched. The study area (43°53′～44°21′N, 90°32′～91°21′E, 800～1000 m a.s.l.) is located in the eastern marginal zone of the Junggar Basin, Xinjiang, and is about 100 km northeast of Mori County Town. It is arid and cold in the study area, the monthly air temperature in January is -15 ℃, and the annual precipitation is 150 mm. The results show that the increase of their avoirdupois and the growth of the outer apparatuses of the nestlings of Chlamydotis undulata macqueenii are rapid in the first month after they are born, then the growth speed reduces with their growth. The increase of their avoirdupois is more important for the nutrition supply and the thermal regulation during the growth of the nestlings of Chlamydotis undulata macqueenii than other outer apparatuses. The growth of their shanks and wings is prior than their skulls and tails.