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作 者:丁志锋[1] 袁玲[2] 朱成林[1] 黄进文[1] 郑细群 郭向品 林杰妤[5] 胡慧建[2] 唐思贤[1]
机构地区:[1]华东师范大学,上海200062 [2]华南濒危动物研究所,广东广州510260 [3]广东省乳源大峡谷省级自然保护区,广东韶关512700 [4]广东惠东莲花山白盆珠省级自然保护区,广东惠州516300 [5]广东省南岭国家级自然保护区,广东韶关512727
出 处:《Zoological Research》2008年第3期270-276,共7页动物学研究(英文)
基 金:国家自然科学基金(30770311);广东省科学院台站基金(06-08);广东省科技攻关(2006A36801001)
摘 要:营巢对鸟类的生长繁殖有着重要影响。为此,从2007年3-9月在广东省肇庆江溪村对研究地中的黄腹山鹪莺(Prinia flaviventris)的巢进行标记和测量,并以巢址为中心做5m×5m样方调查,通过主成分分析研究其巢址选择,结果表明:1)黄腹山鹪莺营巢时间始于3月中旬,4月达到高峰,至7月底结束;2)在13种植物上发现44个巢,其中在象草(Pennisetum purpureum)上最多,有27个,其次为加拿大飞蓬(Erigeron canadensis),4个,其他植物皆为1—2个;3)巢皆为不规则的球状巢,巢材除动植物性材料外,均有人工制品;巢内空间与巢整体大小较为一致;4)影响巢址选择的主要因素4种,依次为:距最近水源距离(29.89%)、距最近道路距离(16.45%)、距最近灌木距离(12.92%)、距水面高度(11.69%)。据此认为黄腹山鹪莺的营巢是对草本植物环境的适应,而其尾羽的逆向变化对营巢是有利的,起到增加飞行灵活性和减少筑巢投资的效果。Nesting has important effects upon birds' growth and breeding. We studied nesting characteristics of Yellow-bellied Prinia by marking and measuring nests of study sites at Jiangxi village, Guangdong from March to September in 2007. For each active nest-site, we made a 5m×5m sampling plot with the center of each nest to sample habitat index, and then analyze nest-site selection using Principal-component analysis. The results showed that: 1) Yellow-bellied Prinia started nesting in the middle of March, reached its peak in April, and was completed by late July. 2) A total of 44 nests were found in 13 species of plants; 27 nests were built in Pennisetum purpureum, 4 in Erigeron canadensis and l or 2 in other species. 3) All nests were irregularly sphere-shaped, included artifactitious materials besides vegetation and creatural Materials. 4) Four factors were found to affect birds selecting their nest-sites: distance from the nearest water sources (29.89%), distance from the nearest road (16.45%), distance from the nearest bush (12.92%), and height above water surface (11.69%). Hence, we concluded that the pattern of nest building of Yellow-bellied Prinia was a way to adapt to their environment, and shorter tails could not only increase flexibility, but also reduce nesting investment.
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