【摘要】 <正> 在伟大的无产阶级文化大革命运动中,我们在毛主席无产阶级革命路线指引下,本着科研工作要为无产阶级政治服务,为工农兵服务,为生产实践服务的方针,于1968年和1969年参加了新疆地区有害动物防治工作。工作期间,为配合哈密专区巴里坤哈萨克自治县(以下简称巴里坤)蝗区的治蝗工作,曾于1968年6—7月和1969年5—7月在沙尔更多还原

【Abstract】 The Rose-colored Starling (Sturnus roseus) is one of the famous locust-eating birds in Sinkiang, China. Studies on its feeding habits and its effects on locust-population density were made in Hami (哈密) and Balikoun (巴里坤), Northern Sinkiang from early June to late July in 1968, and from May to July in 1969. Results obtained may be summarized below.1. The Rose-colored Starlings are found to be widely distributed in Ili(伊犁), Tahcheng (塔城), Bole (博乐), Altai (阿勒泰), Hami (哈密), Urumchi(乌鲁木齐), Turfan (吐鲁番) and Kashgar (喀什) in Sinkiang.2. The Rose-colored Starlings accumulate to nest in huge colonies among the rocks and in the clefts of the cliffs. The density of the nests is about 2 per square meter. The laying of eggs occurs in early June and the color of the eggs is bluish-white. The feeding period of nestlings starts from the middle of June to early July. Most nests have 3-4 nestlings and the nestlings leave their nests in the middle of July. In seeking foods for nestlings, the parent birds usually fly in a distance of about 10 km around the nesting place.3. It was found in an experimental feeding that one nestling could take an average of 137 adult locusts of Gomphocrus sibiricus or 23 of Damalacantha vacca, (?) in one day; one young bird could take an average of 45 adult locusts of Damalacantha vacca(?) in one day and an adult bird could take an average of 167 of Gomphocrus sibiricus or 74 of Damdacantha vacca(?) in one day.4. In feeding selection experiments using Gomphocrus sibiricus, Brydema sp. ( ), Bryodema sp. () and Damalacantha vacca( ) as foods, it was shown that the birds prefer Gomphocrus sitiricus themselves and also in feeding their nestlings than the other 2 species of locusts.5. In the nesting area of the Rose-colored Starlings, the population density of locusts was significantly high, being about 33 per square meter before the starlings feed on the locusts, and the locust-population density drops sharply below 1 per square meter after the birds feed on the locusts.At the end of the breeding season of the starlings, the population density of locusts has dropped to 0.25 per square meter in the nesting area due to the continuous extermination of the locusts by the starlings.6.The Rose-colored Starlings play a significant role in destroying locusts. They are considered as beneficial to agriculture and should, therefore, be put under protection.更多还原