HOWLER MONKEYS (ALOUATTA-PALLIATA), DUNG BEETLES (SCARABAEIDAE) AND SEED DISPERSAL - ECOLOGICAL INTERACTIONS IN THE TROPICAL RAIN-FOREST OF LOS-TUXTLAS, MEXICO
HOWLER MONKEYS (ALOUATTA-PALLIATA), DUNG BEETLES (SCARABAEIDAE) AND SEED DISPERSAL - ECOLOGICAL INTERACTIONS IN THE TROPICAL RAIN-FOREST OF LOS-TUXTLAS, MEXICO
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DOI：
10.1017/s026646740000585x
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发表时间：
1991-11-01
影响因子：
1.4
通讯作者：
COATESESTRADA, R
中科院分区：
文献类型：
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作者：
ESTRADA, A;COATESESTRADA, R
在墨西哥的洛斯塔斯特拉斯，研究了吼猴（Alouatta palliata）传播种子的活动和蜣螂调节分散种子命运的活动。 吼猴吃了35种植物的果实。 其中28种种子是由猴子传播的。 大多数（大于或等于90%）由猴子传播的种子被啮齿动物破坏。 金龟子迅速迁移和掩埋粪便，导致大量种子在沉积后不久意外迁移和掩埋。 粪便块（20毫克）留在地面上的平均只有2.5小时（范围1 - 3小时）。 滚球甲虫运输球达5.0米，从网站的沉积（范围1-5米）。 掘穴和滚球蜣螂将种子埋在2.5至> 12.0厘米的深度。 种子埋得越深，被啮齿动物发现和吃掉的可能性就越小。 80%的物种被Alouatta用作Los Tuxtlas的水果来源，分别受益于咆哮者和蜣螂提供的传播和传播后服务。 在森林中的甲虫丰度的季节性可能会影响种子的数量，每个物种在一年中逃脱后扩散捕食。 蜣螂不仅在生态系统的物质和能量循环中起着重要的生态作用，而且在雨林更新过程中也起着重要的作用。
The dispersal of seeds by howler monkeys (Alouatta palliata) and the activity of dung beetles in modulating the fate of the dispersed seed were studied at Los Tuxtlas, Mexico. Howlers consumed the fruits of 35 species of plants. The seeds of 28 of these were dispersed by the monkeys. The majority (greater-than-or-equal-to 90%) of the seeds dispersed by monkeys were destroyed by rodents. Rapid relocation and burial of dung by dung beetles resulted in accidental relocation and burial of large numbers of seeds shortly after deposition. Faecal clumps (20 mg) remained on the ground for an average of only 2.5 h (range 1 3 h). Ball rolling beetles transported balls up to 5.0 m from the site of deposition (range 1-5 m). Burrowing and ball-rolling dung beetles buried seeds at depths ranging from 2.5 to > 12.0 cm. The deeper a seed is buried, the less likely it is to be found and eaten by rodents. Eighty percent of the species used by Alouatta as sources of fruit at Los Tuxtlas benefited by the dispersal and post dispersal service provided by howlers and dung beetles respectively. Seasonality in dung beetles abundance in the forest may influence the number of seeds per species escaping post-dispersal predation during the year. Dung beetles play not only an important ecological role in the recycling of matter and energy in the ecosystem, but also in the process of rain forest regeneration.