摘要
2002—2005年3—5月份,在扎龙国家级自然保护区通过定点观察法、样方法、因子测定法等对散养与野生丹顶鹤孵化期的觅食生境选择进行了对比研究,结果表明:孵化期散养与野生丹顶鹤觅食生境类型一致,均选择芦苇沼泽;因子分析表明:觅食微生境选择存在一定的差异,均具有特异性和非随机性,影响散养丹顶鹤取食的前3个因子分别是食物因子、警戒因子和食物保障因子为主,而野生丹顶鹤的前3个因子分别是食物因子、食物保障因子和警戒因子为主。得出结论:孵化期,在扎龙保护区繁殖的散养丹顶鹤繁殖对的觅食生境选择策略与野生丹顶鹤繁殖对还有一定程度的差异。
A research on comparing the feeding habitat selection between semi-domestic and wild Red-crowned Cranes （ Grus japonensis） during the breeding period was conducted from March to May during 2002 and 2005 by the survey methods of fixed-spot observation, scan sampling method, focus sampling method, factor measurement in Zhalong Nature Reserve. Results show that during the breeding period, feeding habitat type between the semi-domestic and the wild Red-crowned Cranes is the same, and cranes all select reed marsh; while there exists an obvious difference in feeding microhabitat selection between the semi-domestic and the wild Red-crowned Cranes, displaying specific and nonrandom location. The first three factors influencing feeding habitat selection are food, precaution and food bank for the semi-domestic Red-crowned Cranes, and food, food bank and precaution for the wild Red-crowned Cranes. It concludes that the strategy of feeding habitat selection between the semi-domestic and the wild Red-crowned Crane exhibits certain differences.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2007年第11期56-59,共4页
Journal of Northeast Forestry University
基金
黑龙江省自然科学基金资助项目(C0326)
国家自然科学基金(30670350)
关键词
散养丹顶鹤
野生丹顶鹤
孵化期
觅食生境选择
扎龙保护区
Semi-domestic red-crowned cranes
Wild red-crowned cranes
Breeding periods
Feeding habitai selection
Zhalong Nature Reserve
