gwd24 first reading

you5460

"Another example of indirect negative
consequences occurred in England when a virus introduced to control
rabbits reduced the amount of open ground (because large rabbit
populations reduce the ground cover) ...."

Perhaps my brain is dead today, I read this sentence several times and still felt confused.

If a virus is introduced to control rabbits, then the rabbits is goint
to become samller in size, so the amount of open groupd shoud be
increased.  Have I misunderstood this sentence?

you5460

thanks !![em06]