Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Volltext Akzeptiertes Manuskript
Titel (primär) Tandem action of natural and chemical stressors in stream ecosystems: insights from a population genetic perspective
Autor Inostroza, P.A.; Vera-Escalona, I.; Wild, R.; Norf, H.; Brauns, M.;
Journal / Serie Environmental Science & Technology
Erscheinungsjahr 2018
Department FLOEK;
Band/Volume 52
Heft 14
Sprache englisch;
POF III (gesamt) T32;
Supplements https://pubs.acs.org/doi/suppl/10.1021/acs.est.8b01259/suppl_file/es8b01259_si_001.pdf
Abstract Agricultural and urban land use has dramatically increased over the last century and one consequence is the release of anthropogenic chemicals into aquatic ecosystems. One of the rarely studied consequences is the effect of land use change on internal concentrations of organic micropollutants (OMPs) in aquatic invertebrates and its effects on their genotype diversity. Here, we applied population genetic and internal concentrations of OMPs analyses to determine evolutionary implications of chemical pollution on Gammarus pulex populations from a natural and two agricultural streams. Along 14 consecutive months sampled, 26 different OMPs were quantified in G. pulex extracts with the highest number, concentration, and toxic pressure in the anthropogenically stressed stream ecosystems. Our results indicate distinct internal OMP profiles and changes in both genetic variation and genetic structure in streams affected by anthropogenic activity. Genetic variation was attributed to chemical pollution whereas changes in the genetic structure were attributed to environmental disturbances, such as changes in discharge in the impacted stream ecosystems, which worked both independently and in tandem. Finally, we conclude that human-impacted streams are subjected to severe alterations in their population genetic patterns compared to non-impacted stream ecosystems.
ID 20453
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=20453
Inostroza, P.A., Vera-Escalona, I., Wild, R., Norf, H., Brauns, M. (2018):
Tandem action of natural and chemical stressors in stream ecosystems: insights from a population genetic perspective
Environ. Sci. Technol. 52 (14), 7962 - 7971