The physiological ecology of vascular epiphytes: current knowledge, open questions.

@article{Zotz2001ThePE,
  title={The physiological ecology of vascular epiphytes: current knowledge, open questions.},
  author={Gerhard Zotz and Peter Hietz},
  journal={Journal of experimental botany},
  year={2001},
  volume={52 364},
  pages={
          2067-78
        }
}
  • G. Zotz, P. Hietz
  • Published 1 November 2001
  • Environmental Science
  • Journal of experimental botany
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… 

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References

SHOWING 1-10 OF 102 REFERENCES

Plant size and intraspecific variability in vascular epiphytes

TLDR
From habitat conditions it seems that size-related differences in water availability are the driving force behind the observed size-dependent ecophysiological changes: the larger an epiphyte grows the more independent it is with regard to precipitation patterns.

Small plants, large plants: the importance of plant size for the physiological ecology of vascular epiphytes.

TLDR
This short review will summarize what is known to date about this phenomenon, describe the possible mechanism and will discuss the consequences for the present understanding of epiphyte biology.

Bromeliaceae: Profile of an Adaptive Radiation

TLDR
This book, first published in 2000, presents a synthesis of the extensive information available on the biology of Bromeliacea, a largely neotropical family of about 2700 described species, concentrates on function and underlying mechanisms.

Herbivory in the epiphyte, Vriesea sanguinolenta Cogn. & Marchal (Bromeliaceae)

TLDR
Level of damage to photosynthetic tissue, mostly caused by the larvae of Napaea eucharilla (Riodinidae, Lepidoptera), indicate that vascular epiphytes may be regularly and sometimes even lethally attacked by insect herbivores.

Photosynthesis in vascular epiphytes: A survey of 27 species of diverse taxonomic origin

15N natural abundance of vascular rainforest epiphytes: Implications for nitrogen source and acquisition

TLDR
It is concluded that epiphytes may utilize N‐depleted nitrogen from atmospheric deposition and N fixation and that discrimination against N is an intrinsic function ofEpiphyte physiology.

POPULATION DYNAMICS OF EPIPHYTES IN A MEXICAN HUMID MONTANE FOREST

TLDR
The distribution of epiphytes among branches and trees and the rates of recruitment, growth and mortality of these subpopulations must be determined to understand the population dynamics.

Ecology of vascular epiphytes in West African rain forest

The ecology of 153 species of vascular epiphytes (101 orchids, 39 pteridophytes and 13 others) in the Nimba Mts in Liberia is described. 29 species are recorded in Liberia for the first time

Some Often Overlooked Plant Characteristics as Determinants of Plant Growth: A Reconsideration

Plant primary production is ultimately dependent on photosynthetic CO2 uptake. However, photosynthate production also depends on the amount of photosynthetically active tissue constructed by the

Cuticles of Vascular Epiphytes: Efficient Barriers for Water Loss after Stomatal Closure?

TLDR
Water permeabilities of astomatous, isolated cuticular membranes of 15 vascular epiphyte species from the moist lowland forest of Barro Colorado Nature Monument, Panama, were investigated and showed the lowest cuticular permeances to water recorded to date.
...