Amphibians are considered good indicators of general ecosystem health because of their close association with various aquatic habitats and sensitivity to different environmental stresses. Habitat destruction has been shown to cause amphibian declines, but little is known about the effects of deforestation, highway construction, urban development, and other habitat changes. Additionally, little is known about the role that other potential stressors (e.g., contaminants, introduced species, climate change, ultraviolet radiation, disease, atmospheric deposition, etc.) might play in influencing declines.

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