Agricultural landscapes, although often highly altered in nature, provide habitat for many
species of amphibian. However, the persistence and health of amphibian populations are …

Contamination is simply the presence of a substance where it should not be or at
concentrations above background. Pollution is contamination that results in or can result in …

The use of pesticides is important for growing crops and protecting human health by
reducing the prevalence of targeted pest species. However, less attention is given to the …

Wildlife is exposed to a diverse range of natural and man-made chemicals. Some
environmental chemicals possess specific endocrine disrupting properties, which have the …

Many species assess predation risk through chemical cues, but the tissue source, chemical
nature, and mechanisms of production or action of these cues are often unknown …

Not all stress is stressful; instead, it appears that stress in the environment, below the
mutation threshold, is essential for many subtle manifestations of population structures and …

To investigate interactions among disease, pesticides, water quality, and adjacent land
cover, we collected samples of water, sediment, and frog tissue from 21 sites in 7 States in …

The selective serotonin reuptake inhibitor fluoxetine has frequently been detected in surface
waters around the world. Fluoxetine modulates levels of serotonin, a neurotransmitter that …

Defying comprehension is the complexity of the chemical sea that surrounds, sustains, and
constitutes all life. From this sea, never-ending challenges are faced by organisms striving to …

Pesticide contaminants are ubiquitous in aquatic environments and pose a threat to
biodiversity. Pesticides also have diverse mechanisms of action that make it difficult to …