Alterations in life-history traits of Chironomus riparius (diptera) obtained from metal contaminated rivers

Postma, J.F.; Kleunen, A. van; Admiraal, Wim

doi:10.1007/bf00208376

Cited by 63 publications

(60 citation statements)

References 41 publications

(34 reference statements)

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“…This is consistent with the findings of Agra et al (2011), who showed that the FR of a copper-tolerant clone of Daphnia longispina was lower than the average FR of sensitive clones in an unpolluted environment. More generally, several studies have already reported modifications in life-history traits of tolerant populations under uncontaminated conditions (Postma et al 1995;Shirley and Sibly 1999), and an increased vulnerability to environmental stressors after long term exposure to contaminants has been documented (e.g., Salice et al 2010).…”

Section: Discussionmentioning

confidence: 98%

Evolution of cadmium tolerance and associated costs in a Gammarus fossarum population inhabiting a low-level contaminated stream

Vigneron¹,

Geffard²,

Coquery³

et al. 2015

Ecotoxicology

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Deciphering evolutionary processes occurring within long-term contaminated wild populations is essential for the ecological risk assessment of persistent chemical contaminations. Using field populations of Gammarus, a commonly-used genus in aquatic ecotoxicology, the present study sought to gain insights into the extent to which long-term exposure to metals in the field could effectively lead to shifts in toxicological sensitivities. For this, we identified a Gammarus population inhabiting a stream contaminated by cadmium (Cd). We compared the Cd-exposure and Cd-sensitivity of this population to those of five reference populations. Active biomonitoring determined in different years and seasons that significant levels of Cd were bioavailable in the contaminated site. Laboratory sensitivity tests under common garden conditions established that this long-term field exposure led to the development of a moderate Cd tolerance, which was maintained after a 3-week acclimatization in the laboratory, and transmitted to offspring produced under clean conditions. The potential physiological costs of tolerance were assessed by means of feeding rate measurements (in the laboratory and in situ). They revealed that, unlike for reference populations, the feeding activity of organisms from the tolerant population was greatly decreased when they were maintained under laboratory conditions, potentially indicating a high population vulnerability to environmental perturbations. Because dissolved Cd concentrations in water from the contaminated site were low (averaging 0.045 µg L(-1)) and below the current European environmental quality standard for Cd for inland surface waters (fixed at 0.08 µg L(-1) in soft water environments), this case study sheds light onto the extent to which current environmental quality standards are protective against potential adverse outcomes of adaptive and micro-evolutionary processes occurring in contaminated environments.

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Section: Discussionmentioning

confidence: 98%

Evolution of cadmium tolerance and associated costs in a Gammarus fossarum population inhabiting a low-level contaminated stream

Vigneron¹,

Geffard²,

Coquery³

et al. 2015

Ecotoxicology

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“…The number of ovarioles a female will produce is determined during the 2 nd - 3 rd instar stage (Ronquillo and Horsefall, 1969). It is reasonable to hypothesize that newly emerged larvae sensing a stressful environment will allocate resources to somatic rather than reproductive purposes (reviewed in Boggs, 2009; Postma et al, 1995; Servia, 2006). Most interestingly, larval metal stress reduced fecundity and fertility dramatically only after extended quiescence.…”

Section: Discussionmentioning

confidence: 99%

Aedes aegypti pharate 1st instar quiescence: A case for anticipatory reproductive plasticity

Pérez

Noriega

2013

Journal of Insect Physiology

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Aedes aegypti mosquitoes use pharate 1st instar quiescence to cope with fluctuations in water availability hosting a fully developed 1st instar larvae within the chorion. The duration of this quiescence has been shown to affect larval fitness. This study s ought to determine if an extended egg quiescence can elicit a plastic response resulting in an adult phenotype distinct from adults reared from short quiescence eggs. Our findings indicate that extended pharate 1st quiescence affects the performance and reproductive fitness of the adult female mosquito as well as the nutritional status of its progeny via maternal effects in an adaptive manner. This study demonstrates that phenotypic plasticity results as a consequence of the duration of pharate 1st instar quiescence and alternative phenotypes may exist for this mosquito with quiescence serving as a cue possibly signaling the environmental conditions that follow a dry period. These findings have implications for A. aegypti’s success as a vector, geographic distribution, vector capacity and control.

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“…Both outcomes have important management implications and neither may be indicated by short duration toxicity tests. Indeed, within the same study on multigenerational exposure to cadmium, persistence at higher concentrations and extinction at intermediate concentrations has been observed in snails (Salice et al, 2009) and chironomids (Postma et al, 1995). With regard to increased tolerance, Klerks and Weis (1987) proposed two categories of tolerance that aquatic organisms may achieve after exposure to environmental contaminants.…”

Section: Introductionmentioning

confidence: 95%

Multigenerational contaminant exposures produce non-monotonic, transgenerational responses in Daphnia magna

Kimberly

Salice

2015

Environmental Pollution

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Alterations in life-history traits of Chironomus riparius (diptera) obtained from metal contaminated rivers

Cited by 63 publications

References 41 publications

Evolution of cadmium tolerance and associated costs in a Gammarus fossarum population inhabiting a low-level contaminated stream

Evolution of cadmium tolerance and associated costs in a Gammarus fossarum population inhabiting a low-level contaminated stream

Aedes aegypti pharate 1st instar quiescence: A case for anticipatory reproductive plasticity

Multigenerational contaminant exposures produce non-monotonic, transgenerational responses in Daphnia magna

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