Amphibian Life Cycles and Climate Change

From the trees in the forest to the various organisms populating it, all species of plants and animals have periodic life cycle events. Changes in climate have impacted the timing of these life cycle events for many species. This, in turn, can affect how likely coexisting populations are to interact with each other. A study…  More 

Chinese Tallow Litter and Tadpoles

Centuries ago, a tree was plucked out of its native ecosystems and introduced to the U.S. Chinese tallow (Triadica sebifera) is a showy tree with waxy seeds and heart-shaped leaves. Every autumn, its leaves turn crimson or orange before falling to the ground – or the water. “Chinese tallow invades wetlands and riparian areas in…  More 

Monitoring Frog & Toad Populations?

Over the past few decades, scientists have become increasingly concerned about amphibians. “Populations of many frog and toad species have declined,” says U.S. Forest Service research ecologist Katie Greenberg. “The global decline highlights the need to monitor frogs and toads where they live.” Greenberg has been doing just that for 24 years. Since 1994, Greenberg…  More 

Frogs, Toads, and Ephemeral Wetlands

When ephemeral wetlands swell with water, frogs and toads congregate to breed and lay their eggs,which hatch into tadpoles. “That’s risky business,” says U.S. Forest Service research ecologist Katie Greenberg. “Wetlands could dry before tadpoles metamorphose into juveniles.” If ephemeral wetlands dry out before the tadpoles develop lungs and become froglets or toadlets, an entire…  More 

Ephemeral Wetlands and Climate Change: Implications for Frogs and Toads

Many frog and toad species live on land as adults, but their lives always begin in water. Depending on the species, dozens or hundreds of eggs, bound together into a gelatinous glob or string, are laid in a pond, puddle, or marsh. When frogs and toads spawn in waters inhabited by fish, many of the…  More