Interactions among frugivores and fleshy fruit trees in a Philippine submontane rainforest
Interactions among frugivores and fleshy fruit trees in a Philippine submontane rainforest
复制标题
DOI：
10.1046/j.1523-1739.1999.97420.x
复制
发表时间：
1999-08-01
影响因子：
6.3
通讯作者：
Curio, E
中科院分区：
文献类型：
--
作者：
Hamann, A;Curio, E
我们评估了北尼格罗斯森林保护区果食性动物灭绝对森林更新的潜在影响，这是菲律宾群岛中部生物地理区域最后剩下的湿润热带雨林生态系统之一。我们评估了19种鸟类、果蝠和其他哺乳动物在三个演替生境中的觅食观察，并确定了可能面临风险的树种，因为它们的种子被严重濒危的食果动物传播。该森林群落中的动物性树木的相对丰富度非常高(80%)，这表明如果濒危的食果性动物被猎杀到灭绝，森林更新的过程将发生巨大的变化。根据种群结构，我们将45种树种划分为早、中、晚演替树种，结果表明，早期演替树种受到多种果食性动物的光顾，而中晚演替树种主要受犀鸟(斗牛科)和果鸽(哥伦比科)的光顾。演替后期的树种在分散体方面最为专门化，因此很容易灭绝。我们推荐的树种可能对保护区内的辅助自然再生项目有用，因为它们受到各种食果者的访问。其中，我们建议将早期演替树种用于露地种植园，将中期演替树种用于丰产种植。
We assessed the potential effect of frugivore extinctions on forest regeneration in the North Negros Forest Reserve, a forest fragment that is one of the last remaining wet tropical rainforest ecosystems in the biogeographic region of the central Philippine Islands. We evaluated foraging observations of 19 species of birds, fruit bats, and other mammals in three successional habitats and identified tree species that are potentially at risk because their seeds are dispersed by frugivores that are seriously, endangered. The relative abundance of zoochorous trees in this forest community was exceptionally high (80%), suggesting that the process of forest regeneration will change drastically if endangered frugivores are hunted to extinction. We grouped 45 tree species as early-, mid-, or late-successional species based on their population structure and we demonstrated that early-successional tree species were visited by a wide spectrum of frugivores, whereas mid- and late-successional species were visited mostly by hornbills (Bucerotidae) and fruit pigeons (Columbidae). Late-successional tree species were most specialized with respect to dispersers and could therefore Do susceptible to extinction. We recommend tree species that could be useful for assisted natural regeneration projects in the reserve because they are visited by a variety of frugivores. Of those, we recommend early-successional trees for open-field plantations and mid-successional tree species for enrichment plantings.