Effects of ants, ground beetles and the seed-fall patterns on myrmecochory of Erythronium japonicum Decne. (Liliaceae)
Effects of ants, ground beetles and the seed-fall patterns on myrmecochory of Erythronium japonicum Decne. (Liliaceae)
复制标题
蚂蚁、地面甲虫和种子掉落模式对 Erythrium japonicum Decne 的密生菌落的影响。
DOI：
10.1007/bf00329708
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发表时间：
1996
期刊：
影响因子：
2.7
通讯作者：
M. Ohara
中科院分区：
文献类型：
--
作者：
K. Ohkawara;S. Higashi;M. Ohara
野桐（Erythronium japonicum）为百合科植物，分布于日本北方北海道的落叶阔叶林中。对该种的种子散布进行了研究，重点分析了种子散布频率、种子捕食者的影响和种子的降落方式。在样方调查中，用E. japonicum，antMyrmica kotokuiffrequently transported种子.但种子移出的频率较低，大多数种子散布在1m以下。日本油菜个体的分布几乎是随机的，大多数幼苗在离可育株5 - 20 cm处定植，表明即使这种小规模的种子传播也有助于避免幼苗拥挤。一些节肢动物，如跳虫、蜘蛛和蜱，通过吞噬elaiosomes和种子来阻碍种子传播。虽然地面甲虫物种也损害种子和elaiosomes，其中一些表现出种子去除行为。japonicum的种子不是一次全部落下，而是一点一点地落下，需要3 - 6天才能全部落下。这种种子下降模式是有效的，在提高蚂蚁的种子去除频率和减少一些节肢动物的种子捕食。
Erythronium japonicum(Liliaceae) inhabits deciduous mesic forests of Hokkaido, northern Japan. Myrmecochory of this species was investigated, especially the dispersal frequency, the effect of seed predators and the seed fall pattern. In the quadrat census using marked seeds ofE. japonicum, the antMyrmica kotokuifrequently transported the seeds. However, the frequency of seed removal was low and most seeds were dispersed as little as 1 m or less. The spatial distribution ofE. japonicumindividuals was nearly random and most seedlings were established 5–20 cm away from the fertile plants, indicating that even this small scale of seed dispersal contributes to avoiding crowding of seedlings. Some arthropods, e.g. springtails, spiders and ticks, hindered seed dispersal by devouring elaiosomes and seeds. Although ground beetle species also damaged seeds and elaiosomes, a few of them exhibited seed removal behaviour.E. japonicumdropped their seeds not all at once but bit by bit, taking 3–6 days to drop all seeds. This seed-fall pattern was effective in raising the frequency of seed removal by ants and reducing seed predation by some arthropods.
DOI：
10.1017/cbo9780511721878
发表时间：
1985-11
期刊：
--
影响因子：
--
作者：
A. Beattie
通讯作者：
A. Beattie