Surface feeding and living areas for small prey and their predators would be lost until grassy cover was again established on the rebuilt levees.
(their predators; would be lost; T:until grassy cover was again established on the rebuilt levees) (grassy cover; was established; L:on the rebuilt levees; T:again)
their predators grassy cover
would be lost was established
T:until grassy cover was again established on the rebuilt levees
L:on the rebuilt levees T:again