Tadpoles would not control mozzies in any noticeable amount, cane toads will eat bugs and stuff, but so did the animals they have displaced or eaten.
Saving native species is of only slight interest to the government, but it does create money through things like tourism etc. Also many ppl like our native wildlife so it can be used for political advantage when cost effective solutions can be found. Some politicians would even see value in things beyond the money and votes too(well maybe thats going a bit too far). Canetoads are also generally hated by the public so there would be very little opposition to wiping them out if it was practical, cats on the other hand would be much less politically viable to wipe out due to large numbers of bleeding heart idiots and cat ppl.
The massive "vacuum" created by a lack of toads probably wouldnt take too long to be filled by frogs and other native predators that previously occupied the same niche. With the removal of toads from an area frog numbers rapidly increase and with that frog eating things also increase in numbers, as will animals that are limited in numbers due to eating toads etc. Species that are locally extinct(or close too) from toads may spread back to their original range or simply be replaced by other critters etc. (This is just based on my very limited expeience and fairly uneducated thinking, but yeah its what i would imagine would happen)
Saving native species is of only slight interest to the government, but it does create money through things like tourism etc. Also many ppl like our native wildlife so it can be used for political advantage when cost effective solutions can be found. Some politicians would even see value in things beyond the money and votes too(well maybe thats going a bit too far). Canetoads are also generally hated by the public so there would be very little opposition to wiping them out if it was practical, cats on the other hand would be much less politically viable to wipe out due to large numbers of bleeding heart idiots and cat ppl.
The massive "vacuum" created by a lack of toads probably wouldnt take too long to be filled by frogs and other native predators that previously occupied the same niche. With the removal of toads from an area frog numbers rapidly increase and with that frog eating things also increase in numbers, as will animals that are limited in numbers due to eating toads etc. Species that are locally extinct(or close too) from toads may spread back to their original range or simply be replaced by other critters etc. (This is just based on my very limited expeience and fairly uneducated thinking, but yeah its what i would imagine would happen)
