Some species do not cope well with captivity, such as certain
swallowtails, which batter themselves against the glass. But many other
species thrive in the man-made jungles, and often live longer than in
the wild because there are no predators. Inevitably, the fate of the
butterflies lies in the hands of their human owners. Successful
butterfly houses always have a first-rate horticulturalist. A continual
show of flowers is needed, as the butterflies require nectar to feed on,
as well as the right larval feed plants for the young. In badly run
farms, the conditions are not right for the butterflies to flourish and
reproduce. These farms either end up importing so many pupae and
butterflies that their business fails financially, or they do not have
enough butterflies to show the public. 'It is like conventional
farming. If you do it badly, you will not stay in business very long,'
says Mr Simcox.
1. The list below gives possible reasons for the failure of some butterfly farms. Which **THREE** of these reasons are mentioned by the writer of the passage?
请选择 3 个答案