Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1111/ele.12923 |
| Document | Shareable Link |
| Title (Primary) | When things don’t add up: quantifying impacts of multiple stressors from individual metabolism to ecosystem processing |
| Author | Galic, N.; Sullivan, L.L.; Grimm, V.; Forbes, V.E. |
| Source Titel | Ecology Letters |
| Year | 2018 |
| Department | OESA; iDiv |
| Volume | 21 |
| Issue | 4 |
| Page From | 568 |
| Page To | 577 |
| Language | englisch |
| Supplements | https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1111%2Fele.12923&attachmentId=2197305387 https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1111%2Fele.12923&attachmentId=2197305388 |
| Keywords | Antagonism; detritivores; ecosystem services; energy budgets; individual-based model; population dynamics; stressor interactions; synergism |
| UFZ wide themes | RU5; |
| Abstract | Ecosystems are exposed to multiple stressors which can compromise functioning and service delivery. These stressors often co-occur and interact in different ways which are not yet fully understood. Here, we applied a population model representing a freshwater amphipod feeding on leaf litter in forested streams. We simulated impacts of hypothetical stressors, individually and in pairwise combinations that target the individuals’ feeding, maintenance, growth and reproduction. Impacts were quantified by examining responses at three levels of biological organisation: individual-level body sizes and cumulative reproduction, population-level abundance and biomass and ecosystem-level leaf litter decomposition. Interactive effects of multiple stressors at the individual level were mostly antagonistic, that is, less negative than expected. Most population- and ecosystem-level responses to multiple stressors were stronger than expected from an additive model, that is, synergistic. Our results suggest that across levels of biological organisation responses to multiple stressors are rarely only additive. We suggest methods for efficiently quantifying impacts of multiple stressors at different levels of biological organisation. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=19935 |
| Galic, N., Sullivan, L.L., Grimm, V., Forbes, V.E. (2018): When things don’t add up: quantifying impacts of multiple stressors from individual metabolism to ecosystem processing Ecol. Lett. 21 (4), 568 - 577 10.1111/ele.12923 |
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