【摘要】 在吉林省左家自然保护区的次生林内,对1996年标记的被5种次级洞巢鸟利用并保存下来的104个巢址进行了4年的再利用跟踪调查.所标记的巢址被5种次级洞巢鸟、2种初级洞巢鸟和花鼠所利用.标记巢址总的再利用率为55.16%,次级洞巢鸟对标记巢址的再利用率为51.29%,说明次级洞巢鸟利用过的巢址仍是其后续繁殖的重要资源.每种次级洞巢鸟都偏爱同一种类以前利用过的巢址,被同种鸟重复利用的巢繁殖成功率明显高于只被利用过一次的巢,表明被同一鸟种多次利用的树洞是该种鸟繁殖更适宜的巢位.次级洞巢鸟对标记巢址存在交叉利用现象,且对再利用的巢址具有选择性;影响次级洞巢鸟巢址再利用的因子主要包括洞口类型、洞口水平直径、洞内径、洞深、洞距地面高和洞口垂直直径.次级洞巢鸟在对巢址资源的再利用过程中不存在明显的时滞现象.更多还原

【Abstract】 This papers investigated the reuse patterns of 104 marked nest-sites which used by five species of SCNBs in 1996 for four years in a secondary forest in Zuojia Nature Reserve.The marked nest-sites were reused by five species of SCNBs,two species of primary cavity-nesting birds and a species of squirrel.The reuse rate of total marked nest-sites is 55.16%,the reuse rate for SCNBs is 51.29%,which indicates that the marked nest-sites still play an important role for SCNBs in the following breeding seasons.Different species of SCNBs prefers to reuse the nest-sites used by the same species in previous years and the reproductive success is higher than those only were used for one time,which indicates the nest-sites reused for multiple times by a same species are suitable for them.There exit overlaps among SCNBs when using the marked nest-sites,but every species chooses nest-site with different characteristics.The factors that effect nest-site reuse include the cavity type,horizontal diameter of nest entrance,inner breadth of the cavity,depth of the cavity,nest height above ground,vertical diameter of nest entrance.There is no obvious time lag when SCNBs reuse the marked cavities.更多还原