Postmetamorphic juveniles retreat to mammal burrows after spending a few hours or days in mud cracks near water, or tunnels constructed in soft soil. Aquatic larvae seek cover in turbid water, clumps of vegetation and other submerged debris. Tiger salamanders breed and lay eggs primarily in vernal pools and other temporary ponds. They sometimes use permanent human-made ponds if predatory fishes are absent. Streams are rarely used for reproduction.
Rainfall is important to the formation and maintenance of breeding ponds.
Most surface migrations and other movements by adults are associated with sustained rainfall, especially at night. In some localities, dispersal of postmetamorphic juveniles from breeding ponds is not associated with rainfall. In such cases, desiccation can cause significant mortality. Prime habitat in California is annual grass, but seasonal ponds, or vernal pools are crucial to breeding. Permanent ponds or reservoirs sometimes used as well.