Abstract

Heavy metals can accumulate in the bodies of spiders and affect their physiological and ecological traits and/or show toxicological effects. Spiders are thus considered to be potential bioindicators of heavy metal pollution for ecosystem monitoring, due to their superior resistance to and regulation of heavy metals. The metal loads in spider bodies show considerable variation within and among species, metal types, geochemical sites, exposure pathways, spider physiological traits, and other factors. Moreover, the mechanism of physiological regulation and tolerance in spiders to different kinds of heavy metals also varies significantly; it has been shown that those two differences are synergistic effects. Since the ecotoxicology and differences in physiological mechanisms remain unclear, questions and recommendations for possible further research are suggested.

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