黄檗的更新特点及食果实鸟类对其种子的传播

摘要/Abstract

摘要： 在帽儿山实验林场和哈尔滨实验林场,黄檗母树下没有幼苗分布,不能进行天然更新,需要靠食果实鸟类等将果实和种子传播至远离母树的其他林下。捕食黄檗果实的食果实鸟类有9种。其中6种是食果肉鸟类,吞入果实后,消化果肉,而种子完整地随粪便排出而得以传播。其余3种是食种子鸟类,没有传播作用。果实在鸟类消化道内的滞留时间达20～30min,具有很长的潜在传播距离。将鸟类消化后的种子与完整果实和人为去果肉种子进行萌发对比实验,消化后种子的累计萌发率与其余二者之间均没有显著性差异,说明食果实鸟类的消化(道)过程对种子萌发没有明显影响,同时证明果肉对种子萌发率没有显著影响,果肉中不含萌发抑制物质。黄檗提供多种鸟类以食物,而鸟类也同时以多种肉质果植物为食物。因此食果实鸟类和肉质果植物(包括黄檗)之间形成了松散的互利共生关系。

关键词: 苏云金芽孢杆菌, 质粒, 检测, 功能

Abstract: Regeneration and seed dispersal of Phellodendron amurense by frugivorous birds were studied at Maoershan and Harbin Forest Experiment Farms. Nine species of frugivorous birds fed on P. amurense fruits, while six of them were pulp-eating birds and three of them were seed-eating birds. Six species, which ate the whole fruits and defecated the seeds unhurt, were seed dispersers. The other three species were seed predators.Retention time of P. amurense fruits in the digestive systems of dispersers was between20 and 30min. That means a long potential dispersing distance. The germination experiment of three groups of seeds (ingested seeds, extracted seeds and intact fruits) was compared, and cumulative germination showed no significant difference among them. Bird ingestion had no significant effect on seed germination of P. amurense fruits. The result also showed that no germination inhibitor existed in pulp.P. amurense fruits provides many frugivorous species with pulp, and bird species also feed on many other fleshy-fruit plants. The refor mutualism exists between many species of birds and plants.

Key words: Bacillus thuringiensis, Plasmid, Detection, Function

中图分类号:

Q958.1

鲁长虎, 常家传, 许青. 黄檗的更新特点及食果实鸟类对其种子的传播[J]. 生态学杂志, 2004, (1): 24-29.

LU Changhu, CHANG Jiachuan, XU Qing. Regeneration of Phellodendron amurense and its deed dispersal by frugivorous birds[J]. cje, 2004, (1): 24-29.

参考文献

[1] 周以良.1986.黑龙江省树木志[M].哈尔滨:黑龙江科学技术出版社.
[2] 黄双全,王孝民.2000.食果鸟白头鸭与接骨草的分布[J]植物学报,42:1096～1100.
[3] 鲁长虎,常家传.1998.食肉质果鸟类对植物种子的传播[J].生态学杂志,17:61～64.
[4] 鲁长虎,袁力1997食干果鸟类对植物种子的传播[J].生态学杂志,16:43～46.
[5] Agami M, Waisel Y. 1986. The role of mallard (Anas platyrhynchos) in distribution and germination of Najas marina seeds [J].Oecologia, 68: 473～475.
[6] Ballardie RT, Whelan RJ. 1986. Masting, seed dispersal and seed predation in the cycad Macrozamia communis[J]. Oecologia,70:100～105.
[7] Bamea A, Jeffrey BH, Pannell C. 1993. What parts of fleshy fruits contain secondary compounds toxic to birds and why? [J]Biochemical. Sys. Ecology., 21:421～429.
[8] Barnea A, Yom-Tov Y, Friedman J. 1991. Does ingestion by birds affect seed germination [J]. Funct. Ecology., 5:394～402.
[9] Cipollini ML, Levey DJ. 1997. Secondary metabolites of fleshy vertebrate-dispersed fruits: adaptive hypotheses and implications for seed dispersal [J]. Am Nat, 150:346～372.
[10] Cipollini ML, Levey DJ. 1997. Why are some fruits toxic? Glycoalkaloids in Solanum and fruit choice by vertebrates [J]. Ecology., 78: 782～798.
[11] Hamilton MB. 1999. Tropical tree gene flow and seed dispersal [J]. Nature, 401:129～130.
[12] Herrera CM, Jordano P. 1994. Recruitment of a mast-fruiting,bird-dispersed tree:bridging frugivore activity and seedling establishment [J]. Ecol. Monog., 64: 315～344.
[13] Herrera CM. 1984. A study of avian frugivores, bird-dispersed plants, and their interaction in Mediterranean scrublands [J].Ecol. Monog., 54:1～23.
[14] Herrera CM. 1992. Interspecific variation in fruit shape: allometry, phylogeny, and adaptation to dispersal agents [J]. Ecology,73:1832～ 1841.
[15] Herrera CM. 1995. Plant-vertebrate seed dispersal systems in the Mediterranean: ecological, evolutionary, and historical determinants [J]. Annu Rev Ecol Syst, 26: 705～727.
[16] Janzen DH. 1972. Escape in space of juvenile Dioclea megacarpa (Leguminosae) vines from predators in a deciduous tropical forest [J]. Am Nat, 2:465～492.
[17] Janzen DH. 1975. Ecology of plants in the tropics [M]. London:Arnold.
[18] Levin DA, Kerster HW. 1974. Gene flow in seed plants [J].Evol . Biol., 7:139～ 220.
[19] Livingston RB. 1972. Influence of birds, stones and soil on the establishment of pasture juniper, Juniperus communis, and red cedar, J. virginiana in New England pastures [J]. Ecology.,53:1141～1147.
[20] Murray KG. 1988. Avian seed dispersal of three neotropical gapdependent plants [J]. Ecol. Monog., 58:271～298.
[21] Smith AJ. 1975. Invasion and ecesis of bird-disseminated woody plants in a temperate forest sere [J ]. Ecol., 56:19～34.
[22] Van der Pijl L. 1972. Principles of dispersal in higher plants [M]. New York: Springer-Verlag.
[23] Wenny DG. 2000. Seed dispersal, seed predation, and seedling recruitment of a neotropical montane tree [J]. Ecol. Monogr., 70:331 ～351.
[24] Westcott DA, Graham DL. 2000. Patterns of movement and seed dispersal of tropical frugivore [J]. Oecologia, 122:249～257.
[25] Wheelwright NT. 1985. Fruit size, gape width, and the diets of fruit-eating birds [J]. Ecology, 66:808～818.
[26] Yagihashi T, Hayashida M, Miyamoto T. 1998. Effects of bird ingestion on seed germination of Sorbus commixta [J]. Oecologia, 114:209～212.
[27] Yagihashi T, Hayashicla M, Miyamoto T. 1999. Effects of bird ingestion on seed germination of two Prunus species with different fruitripening seasons [J]. Ecol. Res., 14:71～76.