A tuatara
Some tuatara kept in captivity could be harmed by
inadequate lighting in their enclosures, new research shows.
The ancient reptiles need ultraviolet (UV) light to get
vitamin D, which helps the bones absorb calcium and reduces
the risk of broken bones and other painful conditions.
A new study from Massey University researchers found four of
18 tuatara facilities in New Zealand had ineffective UV light
sources, while others were not providing enough light, The
Press reported.
There was "a clear relationship" between light availability
and the risk of developing bone problems, the study said.
The study did not name individual facilities, but all had
been told to ensure tuatara had UV light equivalent "to what
you see on a cloudy day in New Zealand".
The researchers did not note whether any deaths had resulted
from inadequate lighting.
Tara Atkinson, head of native species at Christchurch's Orana
Wildlife Park, said the research could save lives, but came
too late for two baby tuatara that died at the park several
years ago.
"Their bones were not up to it. They were too soft to support
growth."
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