Susceptibility to a metal under global warming is shaped by thermal adaptation along a latitudinal gradient

Van, Khuong Dinh; Janssens, Lizanne; Debecker, Sara; Jonge, Maarten De; Lambret, Philippe; Nilsson-Örtman, Viktor; Bervoets, Lieven; Stoks, Robby

doi:10.1111/gcb.12243

Cited by 88 publications

(56 citation statements)

References 55 publications

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“…In contrast to current findings, warming imposed higher predation rates of I. elegans on Artemia nauplii (Dinh Van et al. , ), and on Daphnia magna water fleas (De Block et al. ).…”

Section: Discussioncontrasting

confidence: 93%

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Evolution determines how global warming and pesticide exposure will shape predator–prey interactions with vector mosquitoes

Tran

Janssens

Dinh

et al. 2016

Evolutionary Applications

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How evolution may mitigate the effects of global warming and pesticide exposure on predator–prey interactions is directly relevant for vector control. Using a space‐for‐time substitution approach, we addressed how 4°C warming and exposure to the pesticide endosulfan shape the predation on Culex pipiens mosquitoes by damselfly predators from replicated low‐ and high‐latitude populations. Although warming was only lethal for the mosquitoes, it reduced predation rates on these prey. Possibly, under warming escape speeds of the mosquitoes increased more than the attack efficiency of the predators. Endosulfan imposed mortality and induced behavioral changes (including increased filtering and thrashing and a positional shift away from the bottom) in mosquito larvae. Although the pesticide was only lethal for the mosquitoes, it reduced predation rates by the low‐latitude predators. This can be explained by the combination of the evolution of a faster life history and associated higher vulnerabilities to the pesticide (in terms of growth rate and lowered foraging activity) in the low‐latitude predators and pesticide‐induced survival selection in the mosquitoes. Our results suggest that predation rates on mosquitoes at the high latitude will be reduced under warming unless predators evolve toward the current low‐latitude phenotype or low‐latitude predators move poleward.

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“…In contrast to current findings, warming imposed higher predation rates of I. elegans on Artemia nauplii (Dinh Van et al. , ), and on Daphnia magna water fleas (De Block et al. ).…”

Section: Discussioncontrasting

confidence: 93%

“…Growth rates of both mosquito and damselfly larvae were calculated as (ln final mass −ln initial mass )/5 days (Dinh Van et al. ).…”

Section: Methodsmentioning

confidence: 99%

Evolution determines how global warming and pesticide exposure will shape predator–prey interactions with vector mosquitoes

Tran

Janssens

Dinh

et al. 2016

Evolutionary Applications

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“…This became evident not only by lower levels of the measured fitness trait (intrinsic growth rate), but also in the lower RNA:DNA ratio and lower sugar content when Daphnia were exposed to nZnO at 24°C than at 20°C. A higher toxicity of trace metals under warming has been documented in the study species (Kimberly & Salice, 2014) as well as in other aquatic invertebrates (Debecker, Dinh, & Stoks, 2017; Dinh et al., 2013). In contrast, interaction effects between warming and nanocontaminants have been rarely studied.…”

Section: Discussionmentioning

confidence: 99%

“…This resembles the long‐term evolutionary pattern where cold‐adapted high‐latitude populations of the damselfly I. elegans are more sensitive to zinc at 24°C compared to 20°C (hence a synergism), while warm‐adapted low‐latitude populations are not (Dinh et al., 2013). Synergisms between contaminants and environmental variables are expected when the environmental variable itself imposes stress (Liess et al., 2016).…”

Section: Discussionmentioning

confidence: 99%

Thermal evolution offsets the elevated toxicity of a contaminant under warming: A resurrection study in Daphnia magna

Zhang

Jansen

Meester

et al. 2018

Evolutionary Applications

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Synergistic interactions between temperature and contaminants are a major challenge for ecological risk assessment, especially under global warming. While thermal evolution may increase the ability to deal with warming, it is unknown whether it may also affect the ability to deal with the many contaminants that are more toxic at higher temperatures. We investigated how evolution of genetic adaptation to warming affected the interactions between warming and a novel stressor: zinc oxide nanoparticles (nZnO) in a natural population of Daphnia magna using resurrection ecology. We hatched resting eggs from two D. magna subpopulations (old: 1955–1965, recent: 1995–2005) from the sediment of a lake that experienced an increase in average temperature and in recurrence of heat waves but was never exposed to industrial waste. In the old “ancestral” subpopulation, exposure to a sublethal concentration of nZnO decreased the intrinsic growth rate, metabolic activity, and energy reserves at 24°C but not at 20°C, indicating a synergism between warming and nZnO. In contrast, these synergistic effects disappeared in the recent “derived” subpopulation that evolved a lower sensitivity to nZnO at 24°C, which indicates that thermal evolution could offset the elevated toxicity of nZnO under warming. This evolution of reduced sensitivity to nZnO under warming could not be explained by changes in the total internal zinc accumulation but was partially associated with the evolution of the expression of a key metal detoxification gene under warming. Our results suggest that the increased sensitivity to the sublethal concentration of nZnO under the predicted 4°C warming by the end of this century may be counteracted by thermal evolution in this D. magna population. Our results illustrate the importance of evolution to warming in shaping the responses to another anthropogenic stressor, here a contaminant. More general, genetic adaptation to an environmental stressor may ensure that synergistic effects between contaminants and this environmental stressor will not be present anymore.

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“…While the idea of context‐dependent responses is well established in ecology (Cardinale et al ., ; Nowlin & Drenner, ), it has received little attention in ecotoxicology (Clements, Hickey & Kidd, ; Dinh Van et al ., ; Merriam et al ., ). Previous studies have shown that the effects of pesticides on aquatic communities may depend on the types of predators present (Relyea, Schoeppner & Hoverman, ) and initial community composition (Rohr & Crumrine, ), suggesting that the concept of context dependency can be extended to include variation in responses of communities to contaminants and other anthropogenic stressors (Table ).…”

Section: Introductionmentioning

confidence: 98%

Perspectives on the context‐dependency of stream community responses to contaminants

et al. 2015

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SUMMARY1. Natural variation in the structure and function of aquatic communities along environmental or spatiotemporal gradients can influence how systems respond to biotic and abiotic disturbances. Although these context-dependent responses are a well-established element of basic ecology, they have received little attention from an ecotoxicological perspective. 2. As the scope of freshwater bioassessment expands from single catchments to broad-scale, regional surveys, it has become apparent that community responses to contaminants can vary significantly among locations. This variability is generally considered a nuisance and an impediment to recognising ecological patterns; however, natural spatiotemporal variation in communities also provides opportunities to test hypotheses about context-dependent responses to contaminants in aquatic ecosystems. 3. This study presents three examples of context-dependent responses of benthic stream communities to contaminants. We show how longitudinal variation in community composition, the development of tolerance to contaminants and exposure to multiple stressors influence the historical context of a community and hence may determine community responses to contaminants. 4. Aquatic ecotoxicologists have made significant progress identifying abiotic factors that influence contaminant bioavailability and toxicity. A similar effort could be undertaken to identify specific ecological factors (e.g. community composition, natural disturbance regimes and life-history characteristics) that contribute to variation in susceptibility of communities to contaminants. Understanding the nature of context-dependent responses and the mechanisms responsible for variation among communities should be a key element of ecological risk assessment and a research priority in ecotoxicology.

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Susceptibility to a metal under global warming is shaped by thermal adaptation along a latitudinal gradient

Cited by 88 publications

References 55 publications

Evolution determines how global warming and pesticide exposure will shape predator–prey interactions with vector mosquitoes

Evolution determines how global warming and pesticide exposure will shape predator–prey interactions with vector mosquitoes

Thermal evolution offsets the elevated toxicity of a contaminant under warming: A resurrection study in Daphnia magna

Perspectives on the context‐dependency of stream community responses to contaminants

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