Ecotoxicology
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Breeding near a landfill may influence blood metals (Cd, Pb, Hg, Fe, Zn) and metalloids (Se, As) in white stork (Ciconia ciconia) nestlings
Ecotoxicology - Tập 23 - Trang 1377-1386 - 2014
Cadmium, lead, mercury, selenium, iron, zinc and arsenic levels were measured in blood samples from 59 free-ranging white stork nestlings from colonies located in three different environmental conditions in Western Spain. The reference colony was situated in “Llanos de Cáceres y Sierra de Fuentes”, an Area of Special Interest for Bird Protection. A second colony was located close to (4.9 km) an ur......
Individual and combined toxic effects of herbicide atrazine and three insecticides on the earthworm, Eisenia fetida
Ecotoxicology - Tập 25 - Trang 991-999 - 2016
In the present study, we evaluated the individual and combined toxic effects of herbicide atrazine and three insecticides (chlorpyrifos, lambda-cyhalothrin and imidacloprid) on the earthworm, Eisenia fetida. Results from 48-h filter paper test indicated that imidacloprid had the highest toxicity to E. fetida with an LC50 of 0.05 (0.041–0.058) μg a.i. cm−2, followed by lambda-cyhalothrin and atrazi......
Application of a novel method PCR-ligase detection reaction for tracking predator—prey trophic links in insect-resistant GM rice ecosystem
Ecotoxicology - Tập 20 - Trang 2090-2100 - 2011
Insect-resistant genetically modified (IRGM) rice is on the verge of commercial release in China, however, its potential non-target effect on non-target insect natural enemies remains controversial. Tracking trophic interactions between predators and preys in IRGM rice ecosystem can provide new insights into better understanding of the ecological risks of IRGM rice. In the present study, a novel m......
The combined toxicity assessment of carp (Cyprinus carpio) acetylcholinesterase activity by binary mixtures of chlorpyrifos and four other insecticides
Ecotoxicology - Tập 23 - Trang 221-228 - 2013
Mixtures of organophosphate (OP) and carbamate (CB) insecticides are commonly detected in freshwater habitats. These insecticides inhibit the activity of acetylcholinesterase (AChE) and have potential to interfere with behaviors that may be essential for survival of species. Although the effects of individual anticholinesterase insecticides on aquatic species have been studied for decades, the com......
Salicylic acid alleviates aluminum toxicity in rice seedlings better than magnesium and calcium by reducing aluminum uptake, suppressing oxidative damage and increasing antioxidative defense
Ecotoxicology - Tập 22 - Trang 656-670 - 2013
Aluminum toxicity is a major constraint to crop production in acid soils. The present study was undertaken to examine the comparative ameliorating effects of salicylic acid, Ca and Mg on Al toxicity in rice (Oryza sativa L.) seedlings grown in hydroponics. Al treatment (0.5 mM AlCl3) caused decrease in plant vigour, loss of root plasma membrane integrity, increased contents of O
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Fate and effects of ivermectin on soil invertebrates in terrestrial model ecosystems
Ecotoxicology - Tập 20 - Trang 234-245 - 2010
The effect of ivermectin on soil organisms was assessed in Terrestrial Model Ecosystems (TMEs). Intact soil cores were extracted from a pasture in England and kept for up to 14 weeks in the laboratory. Ivermectin was applied to the soil surface via spiked cow dung slurry at seven concentration rates ranging from 0.25 to 180 mg/TME, referring to concentrations of 0.19–227 mg ivermectin/kg soil dry ......
Risk assessment and ecotoxicological diagnosis of soil from a chemical industry park in Nanjing, China
Ecotoxicology - Tập 30 - Trang 1303-1314 - 2021
Soil pollution due to the activities of industrial parks, is becoming an increasingly serious issue, particularly throughout China. Therefore, it is essential to explore the soil pollution characteristics and its ecotoxicological effects on model species, such as higher plant species, in typical industrial areas. In this study, concentrations of heavy metals and polycyclic aromatic hydrocarbons (P......
Turbidity mitigates lead toxicity to cladocerans (Cladocera)
Ecotoxicology - Tập 15 - Trang 425-436 - 2006
To test the hypothesis that sediment would have a synergistic effect on the toxicity of lead to cladocerans, we performed life table demography experiments with two pelagic (Diaphanosoma birgei and Moina micrura) and one littoral (Alona rectangula) cladoceran species. Life table demography experiments were conducted at three levels of turbidity (0, 17 and 170 NTU) and six concentrations of lead (a......
Assessment for water quality by artificial neural network in Daya Bay, South China Sea
Ecotoxicology - Tập 24 - Trang 1632-1642 - 2015
In this study, artificial neural network such as a self-organizing map (SOM) was used to assess for the effects caused by climate change and human activities on the water quality in Daya Bay, South China Sea. SOM has identified the anthropogenic effects and seasonal characters of water quality. SOM grouped the four seasons as four groups (winter, spring, summer and autumn). The Southeast Asian mon......
Uptake of arsenic and metals by tadpoles at an historically contaminated Texas site
Ecotoxicology - Tập 7 - Trang 61-67 - 1998
On 14 May 1994, tadpoles were collected from Lateral Pond and Municipal Lake in Bryan, Texas. These waters are immediately downstream from Finfeather Lake which was directly contaminated during 53 years of industrial production of arsenic (As)-based cotton defoliants. The tadpoles contained elevated levels of arsenic, chromium (Cr) and zinc (Zn). As far as it is known, the mean concentrations of A......
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