Do trees in rainforests have seasonal growth rings?

Friday 5th February 2010
Submitted by Guest
Steve Collins, Northampton

Tropical rainforests don’t experience the winter and summer extremes seen in temperate rainforests. Often, tropical trees grow in a similar way all year round, meaning growth rings are not apparent. However, tropical regions do experience seasonal changes, such as rainy versus dry seasons. Some tropical trees, like teak, have obvious growth rings that reflect this. Others have more subtle rings, revealed only by chemical analysis of the wood.
Answered by Yan Wong

How do hubless wheels work?
previous qanda Article
Why are British mains plugs bigger than those in other countries?
next qanda Article
Q&A Tabs

One working Dutch windmill (Veldkamps Meul’n in Bellingwolde, j.mp/WindE) supposedly generates 18kW of usable mechanical power. If this was hooked up to...

It’s not speed that’s the problem, but acceleration or deceleration. That’s what kills in a collision, for instance. Changes in speed are expressed in multiples of gravitational...

Because group O blood can be received by anyone in a blood transfusion, it was originally thought that this was the ancestral blood type, but more recent work suggests that there are several...

The amount of water you lose through urinating is controlled by the Anti Diuretic Hormone (AHD, also called vasopressin). ADH causes your kidneys to extract excess water from your urine so that it...

It isn't, particularly. In Victorian England, seaside resorts acquired a reputation for the health-giving qualities of the air but this may just have been relative to the distinctly unhealthy city...

All female mammals have a clitoris, the sole purpose of which is to react to sexual stimulation, and presumably this stimulation has evolved to be pleasurable for most species. But establishing...

To create a sound, we have to set matter - whether it's a gas like air, a liquid or even a solid material - in regular motion, creating a wave of specific frequencies, which we hear as a sound of...

Mirrors don’t reverse left and right either – that’s just our interpretation of what happens. Your reflection in the mirror is actually reversed front to back – if you have...

Discovered by an American student named Gary Flandro in the mid-1960s, the slingshot manoeuvre usually involves spacecraft briefly 'coat-tailing' a planet orbiting the Sun, extracting some of the...

The ice disappears because the wind blows away water molecules that have evaporated or 'sublimed' from the ice, so the ice slowly shrinks in size. The molecules that escape are those with the...

We use cookies to improve your experience of our website. Cookies perform functions like recognising you each time you visit and delivering advertising messages that are relevant to you. Read more here