8 No 1
Bird watching techniques
A place in space:
Gems of the park: volunteers
at the park
of a nature warden
(Oak-leaf Fern) | a natural 'monsoon drain'
Specialized sterile leaves (sl) clasp loosely around branches to catch failing leaf-litter from the surrounding tree canopy, and to funnel rain water and dissolved nutrient to the roots within. The fertile leaves (fl) are very different - much lobed, erect and tall.
(Dragon-scale Fern) | has 'hugging leaves'
Fleshy leaves (fl) keep their undersides tightly in contact with the exposed surface of a coconut trunk to help reduce water loss from their pores through transpiration.
(Bird Nest Fern) | a natural 'trash basket'
The wide rosette of robust and waxy leaves capture rain water and leaf- litter that falls from the surrounding tree canopy. The cross-section shows the thick water-retaining spongy mass of fine roots (rm).
Hoya verticillata | produces 'paratrooper-seeds'
The seed(s) of this plant has a tuft of long silky hairs (sh) that keeps it floating in the air longer and increase the chance of attaching itself to a branch in the tree canopy to start a new life.
Orchid seed | symbiosis with fungi
The fine filaments (f) of a fungus penetrate the almost foodless (with little or no endosperm) seed, supplying vital food to the embryo (e) for growth. The close symbiosis between orchids and fungi remains intact into maturity.
© Sungei Buloh Nature Park