However, there is an evolutionary trade-off between predator defense and rapid growth and reproduction amongst snail populations found in this river.

Homer sat opposite her on Ray Kendall's dock, the snail population forever influenced by their conversation.

Meanwhile, sexual snail populations remained much more stable over time.

In some cases red-rimmed melanias are believed to have a negative impact on native snail populations.

Thus management of infection is based mainly on control of the snail population.

He proposes that the snail population in the natural environment would be nearly double what it is if it weren't for the parasite Euhaplorchis califoriensis.

The major uncertainty regarding communities invaded by Platydemus manokwari involves the survival of endemic snail populations.

It is possible that Newcomb's snail populations remain in that region of Kauaʻi.

The common element among sites harboring snail populations is that the water source appears to be consistent and permanent, even during severe drought.

Terrain occupied by Newcomb's snail populations is remote and extremely rugged.