Melo C, Oliveira P E
Instituto de Biologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil.
Braz J Biol. 2009 Feb;69(1):201-7. doi: 10.1590/s1519-69842009000100027.
The objectives of this study were to know and to characterize the behavioural patterns of frugivorous birds in Lacistema hasslerianum. The study was carried out in the Panga Ecological Station (Uberlândia, Minas Gerais State). During the frutification time (September-October), L. hasslerianum was observed for 31.25 hours and received 58 visits by five species of birds. Tyrannidae was the best represented family (2 species). Pipridae was the most frequent visitor in L. hasslerianum (68.97% of visits). The number of consumed fruits was correlated with the time of permanence on the plant. The main foraging tactic was 'Stalling' (58.62%) and the most frequent fruit consumption strategy was 'swallower' (45.25%), which indicates a high seed dispersal potential. Antilophia galeata (Pipridae), although a territorial bird, presented the best dispersal efficiency for Lacistema hasslerianum, because of its consumption rate (2.82 whole fruits consumed/minute).
本研究的目的是了解并描述以果实为食的鸟类在哈氏拉西斯藤(Lacistema hasslerianum)上的行为模式。研究在潘加生态站(位于米纳斯吉拉斯州乌贝兰迪亚市)进行。在结果期(9月至10月),对哈氏拉西斯藤进行了31.25小时的观察,记录到五种鸟类的58次到访。霸鹟科是占比最大的科(2种)。侏儒鸟科是哈氏拉西斯藤上最频繁的访客(占到访次数的68.97%)。消耗的果实数量与在植株上停留的时间相关。主要的觅食策略是“停顿”(58.62%),最常见的果实消耗策略是“吞咽者”(45.25%),这表明其种子传播潜力较高。盔侏儒鸟(Antilophia galeata,侏儒鸟科)尽管是一种具有领地意识的鸟类,但由于其消耗率(每分钟消耗2.82个完整果实),对哈氏拉西斯藤而言具有最佳的传播效率。