Journal
ENVIRONMENTAL SCIENCE & TECHNOLOGY
Volume 55, Issue 6, Pages 3736-3746Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.est.0c07609
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Funding
- Generalitat de Catalunya (Consolidated Research Groups) [2017 SGR 1124]
- CERCA program
- Croatian Science Foundation [IP-2018-01-2298, PZS-2019-029479]
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The study provides evidence of the transfer of pharmaceuticals and endocrine disruptors through the aquatic-terrestrial habitat by emerging aquatic insects. Adult Trichoptera, an important food source for riparian predators, showed increased body burden of these contaminants. The transfer of these contaminants from aquatic primary producers to terrestrial predators may impact their physiology and population dynamics.
A wide range of pharmaceuticals and endocrine disrupting compounds enter freshwaters globally. As these contaminants are transported through aquatic food webs, understanding their impacts on both aquatic and terrestrial ecosystems remains a major challenge. Here, we provide the first direct evidence of the transfer of pharmaceuticals and endocrine disruptors through the aquatic-terrestrial habitat linkage by emerging aquatic insects. We also show that the type of insect metamorphosis and feeding behavior determine the bioaccumulation patterns of these contaminants. Adult Trichoptera, an important food source for riparian predators, showed an increased body burden of pharmaceuticals and endocrine disruptors. This implies that terrestrial predators, such as spiders, birds, and bats, are exposed to mixtures of pharmaceuticals and endocrine disruptors of aquatic origin, which may impact their physiology and population dynamics. Overall, our study provides valuable insights into the bioaccumulation patterns and trophic cross-ecosystem transfer of these contaminants, from aquatic primary producers to terrestrial predators.
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