Peer Reviewed: Ecotoxicology Becomes Stress Ecology

Straalen, Nico M. van

doi:10.1021/es0325720

Cited by 209 publications

(134 citation statements)

References 33 publications

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“…We hypothesize that evolution to deal with one stressor will reduce and may even offset the synergistic interaction with a second stressor. This can be expected because when a population evolves tolerance to a certain stressor that environmental condition is no longer experienced as a stressor (Vam Straalen, 2003). With regard to warming, the acquisition of genetic adaptation to higher temperatures has been demonstrated in several taxa and has been linked to changes in gene expressions (e.g., Garvin, Thorgaard, & Narum, 2015; Gleason & Burton, 2015; Narum, Campbell, Meyer, Miller, & Hardy, 2013; Porcelli, Butlin, Gaston, Joly, & Snook, 2015; for the study species: Jansen et al., 2017; Yampolsky et al., 2014).…”

Section: Introductionmentioning

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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Section: Introductionmentioning

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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“…Emergent properties and indirect effects, due to complex relationships between different species in ecosystems, prevent the use of a reductionist approach in this phase. It is recognized that, up to date, our descriptive and predictive capability of ecological hierarchical levels is the lowest at the community level (van Straalen 2003). The implementation of tools capable to provide integrated responses at the community levels is a challenge for ecotoxicology in the next future.…”

Section: Discussionmentioning

confidence: 99%

“…The characteristics of a community are not merely the sum of the characteristics of individual populations; structure and function of the community are also regulated by emergent properties that are not easily described and predicted from lower hierarchical levels. According to van Straalen (2003), the community is the entity with the lower predictability, among the different ecological hierarchical levels. Assessing ecosystem vulnerability represents a challenge for modern ecotoxicology.…”

Section: Introductionmentioning

confidence: 99%

Ecological vulnerability analysis: A river basin case study

Ippolito

Sala

Faber

et al. 2010

Science of The Total Environment

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Assessing and quantifying ecosystem vulnerability is a key issue in site-specific ecotoxicological risk assessment. In this paper, the concept of vulnerability, particularly referred to aquatic ecosystems, is defined. Sensitivity to stressors, susceptibility for exposure and recovery capability are described as component of vulnerability of biological communities. The potential for habitat changes must also be considered in ecosystem vulnerability assessment. A procedure based on the application of an ecosystem vulnerability index is proposed. The method allows the assessment of vulnerability of riverine ecosystems to multiple stressors. The procedure is applied to two river systems in northern Italy: River Serio, subject to strong human pressure, and River Trebbia, in semi-natural conditions, as reference system. Macrozoobenthos is chosen as the indicator community. The actual quality of River Serio was evaluated as the result of the multiple stressor pressure on the reference system. Values and limitations of the approach are discussed.

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“…3) a qualidade do solo, das águas e do ar; 4) os interesses de proteção à natureza/paisagem; 5) a ordenação territorial e planejamento regional e urbano; 6) a segurança e ordem pública (CETESB, 2011 Muitos trabalhos e manuais já documentaram os diversos tipos de ensaios que tem sido desenvolvidos ao longo dos anos, porém a importância e o papel da Ecotoxicologia vão muito além da simples coleta de dados experimentais (Straalen, 2003).…”

Section: Objetivos Específicosunclassified

“…Em 1976, a definição de Ecotoxicologia foi publicada em monografia pelo Comitê Científico do ICSU sobre problemas ambientais (SCOPE) e ficou definida como a "ciência que estuda os efeitos das substâncias naturais ou sintéticas sobre os organismos vivos, populações e comunidades, animais ou vegetais, terrestres ou aquáticos, que constituem a biosfera, incluindo assim a interação das substâncias com o meio nos quais os organismos vivem num contexto integrado" (Plaa, 1982;Cairns & Niederlehner, 1995 apud Zagatto & Bertoletti, 2008 (Straalen, 2003).…”

Section: Conceitos E Aplicações Da Ecotoxicologiaunclassified

Avaliação ecotoxicológica do fármaco cloridrato de fluoxetina e do surfactante dodecil sulfato de sódio quando submetidos a tratamento por radiação ionizante

Santos¹

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AVALIAÇÃO ECOTOXICOLÓGICA DO FÁRMACO CLORIDRATO DE FLUOXETINA E DO SURFACTANTE DODECIL SULFATO DE SÓDIO QUANDO SUBMETIDOS A TRATAMENTO POR RADIAÇÃO IONIZANTE DYMES RAFAEL ALVES DOS SANTOS SÃO PAULOAmém. Oração da Campanha da Fraternidade -20046 AgradecimentosAgradeço à Deus, pelas pessoas e por todas oportunidades que me concedeu até este momento da minha vida.Meus agradecimentos às duas mulheres mais importantes da minha vida, minha mãe Maria por me gerar, me criar, me educar e me amar e à minha amiga, companheira e namorada Caroline por existir e estar sempre ao meu lado nos momentos mais felizes e nos mais difíceis também. O amor que sinto por vocês duas vai além deste mundo e desta vida! À minha orientadora Dra. Sueli Ivone Borrely, pela oportunidade que me foi dada e por todo aprendizado e amadurecimento que obtive durante os últimos anos ao seu lado.Aos meus companheiros de laboratório, "de salinha de mestrado/doutorado e de CTR":Van, Lê, Gabriel, Neto, Renata, Anna, Alê, Régis, Japa, Robison, Dú, Diego, Rê, Carlita, João, Bia, Mara, Cristian, Clécia, Marcelo, Renato, Amanda, Gustavo, Márcia, Michel. Ao pessoal do CQMA: Gorfo, Kim, Binho, Vanessinha, Gi, Carina, Flávia, Gisela e Gus.Vocês estão guardados dentro do meu coração, pra sempre!! Um muitíssimo obrigado ao pessoal do acelerador de elétrons do CTR, pois sem eles não haveria a possibilidade de realizar este trabalho.Um obrigado especial à Dra. Celina Lopes Duarte e à Doutoranda Márcia, por me ajudarem com as análises espectrofotométricas.A todos os técnicos e funcionários do CTR que ajudaram de alguma forma para a realização deste trabalho.A todos os meus familiares e amigos que são as pessoas mais importantes da minha vida.Ao CNPq pelo apoio financeiro e ao Instituto de Pesquisas Energéticas e Nucleares por subsidiar toda esta pesquisa realizada. encontrados para o fármaco, o surfactante e a mistura não irradiados foram de 14,4 %, 9,62% e 13,8%, respectivamente. Após irradiação das substâncias, a dose de 5 kGy se mostrou a mais efetiva, resultando em valores médios de CE50 48h de 84,60% e >90 %, para o fármaco e para a mistura respectivamente. Para Hyalella azteca foram realizados ensaios de toxicidade aguda para coluna d'água com duração de 96 horas, cujas médias dos valores de CE50 96h encontradas para o fármaco, o surfactante e a mistura não irradiados foram de 5,63 %, 19,29 %, 6,27 %, respectivamente. Para o fármaco e mistura irradiados com a dose de 5 kGy, foram de 69,57% e 77,7 %, respectivamente. Para Vibrio ficheri os ensaios de toxicidade aguda para o fármaco não tratado e para o fármaco irradiado com 5 kGy geraram valores de CE50 15min de 6,9 % e 32,88 %, respectivamente. Tais resultados evidenciaram a redução da toxicidade das subtâncias -teste após irradiação.Palavras-chave: cloridrato de fluoxetina; dodecil sulfato de sódio; toxicidade; radiação ionizante. 8Ecotoxicological assessment of the pharmaceutical fluoxetine hydrochloride and the surfactant dodecyl sodium sulfate after their submission to ionizing radiation treatment Dymes Raf...

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Peer Reviewed: Ecotoxicology Becomes Stress Ecology

Cited by 209 publications

References 33 publications

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

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

Ecological vulnerability analysis: A river basin case study

Avaliação ecotoxicológica do fármaco cloridrato de fluoxetina e do surfactante dodecil sulfato de sódio quando submetidos a tratamento por radiação ionizante

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