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Title: Effects of climate conditions on the avoidance behavior of Folsomia candida and Enchytraeus crypticus towards metal(loid)-contaminated soils
Author: Malheiro, Catarina
Cardoso, Diogo N.
Loureiro, Susana
González-Alcaraz, M. Nazaret
Keywords: Anthropogenic activities
Multiple stressors
Soil invertebrates
Air 35 temperature
UV radiation
Atmospheric CO2
Issue Date: 2020
Publisher: Elsevier
Abstract: Global climate changes are predicted for the 21st century. Alterations in soil contaminants' availability and soil invertebrates' behavior are expected, which may interfere with the avoidance capacity that invertebrates may have towards contaminated soils and, therefore, compromise their role in soil functioning. This study aimed to assess the individual effects of air temperature, ultraviolet (UV) radiation and atmospheric CO2 concentration on the avoidance behavior of the arthropod Folsomia candida and the soft-bodied oligochaete Enchytraeus crypticus towards metal(loid)-contaminated soils. Avoidance behavior was evaluated under distinct climate treatments (simulating increases in air temperature, UV radiation exposure or atmospheric CO2 concentration) and compared to the response obtained at the standard conditions recommended by ISO guidelines. Both soil invertebrate species behave differently under standard conditions, with F. candida not avoiding the contaminated soils while E. crypticus did. Increases in air temperature and exposure to UV radiation did not change F. candida behavior towards contaminated soils. However, high atmospheric CO2 concentration modified this pattern and induced avoidance towards contaminated soils. As for E. crypticus, contaminated soils were also avoided under the different climate treatments simulated. Thus, our study shows that, depending on the species and the climate factor, changes in climate conditions may alter soil invertebrates' behavioral pattern towards meta(loid)-contaminated soils.
Peer review: yes
DOI: 10.1016/j.scitotenv.2020.140368
ISSN: 0048-9697
Publisher Version:
Appears in Collections:CESAM - Artigos
DBio - Artigos

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