The physiological ecology of vascular epiphytes: current knowledge, open questions.
The physiological ecology of vascular epiphytes: current knowledge, open questions.
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DOI：
10.1093/jexbot/52.364.2067
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发表时间：
2001-11
影响因子：
6.9
通讯作者：
G. Zotz;P. Hietz
中科院分区：
文献类型：
--
作者：
G. Zotz;P. Hietz
本文综述了维管附生植物生理生态学的最新研究进展。有人认为，到目前为止，最相关的非生物约束维管附生植物的生长和营养功能是缺水，而其他因素，如养分供应或辐射，一般是次要的。然而，它表明，目前的理解真菌生物学仍然是高度偏颇的，无论是分类学和生态学，它的结论是，任何概括仍然是初步的。未来的研究应包括更广泛的分类群和树冠内的生长地点，以更好地了解非生物因素如何限制真菌的生长和生存，反过来，应该影响真菌群落组成。最后，一个更综合的方法，真菌生物学鼓励：生理调查应平衡的其他可能的限制，例如，基板不稳定性，扩散限制，竞争或草食性的研究。
The current knowledge of the physiological ecology of vascular epiphytes is reviewed here with an emphasis on the most recent literature. It is argued that by far the most relevant abiotic constraint for growth and vegetative function of vascular epiphytes is water shortage, while other factors such as nutrient availability or irradiation, are generally of inferior importance. However, it is shown that the present understanding of epiphyte biology is still highly biased, both taxonomically and ecologically, and it is concluded that any generalizations are still preliminary. Future studies should include a much wider range of taxa and growing sites within the canopy to reach a better understanding how abiotic factors are limiting epiphyte growth and survival which, in turn, should affect epiphyte community composition. Finally, a more integrative approach to epiphyte biology is encouraged: physiological investigations should be balanced by studies of other possible constraints, for example, substrate instability, dispersal limitation, competition or herbivory.