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231223s2008 xx ||||| 00| ||eng c |
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|a (NLM)18080185
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Bednarska, Agnieszka J
|e verfasserin
|4 aut
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| 245 |
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|a Effects of nickel and temperature on the ground beetle Pterostichus oblongopunctatus (Coleoptera
|b Carabidae)
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|c 2008
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 15.05.2008
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|a Date Revised 20.10.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a In natural ecosystems it is not unusual for an organism to be exposed both to chemical and physical stressful factors at the same time. Herein we present results of the study on nickel toxicity to the carabid beetle, Pterostichus oblongopunctatus, and effect of Ni and temperature on the beetles respiration rates. In the first part of the study (Experiment I) we measured the survival, respiration rates and internal Ni concentrations in animals exposed for 245 d at constant temperature (20 degrees C) to food contaminated with Ni at nominal concentrations 0; 600; 1,200; 2,400; 4,800; and 9,600 mg kg(-1) dry weigh (dw). The LC(50) was estimated at 8,351 mg Ni kg(-1), with no effect on fertility. We found a significant positive correlation between Ni concentration in food and internal body concentration of Ni, and a negative correlation between Ni exposure and the respiration rate. Based on these results, the concentration of 2,400 mg kg(-1) (LOEC for the respiration rate) was selected for the second part of the study (Experiment II) in which field-collected males of P. oblongopunctatus were exposed to Ni-contaminated food for 64 d and then to uncontaminated food for the next 64 d at three temperatures: 10, 15 and 20 degrees C. In this part of the study we found that the temperature under which the beetles were kept affected their respiration rates, and that effect of Ni on the respiration was significant only in animals originating from 20 degrees C. The results from both experiments indicate that negative effects of nickel appear only after relatively long exposure
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Soil Pollutants
|2 NLM
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| 650 |
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|a Nickel
|2 NLM
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| 650 |
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|a 7OV03QG267
|2 NLM
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| 700 |
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|a Laskowski, Ryszard
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Ecotoxicology (London, England)
|d 1992
|g 17(2008), 3 vom: 14. Apr., Seite 189-98
|w (DE-627)NLM098212214
|x 1573-3017
|7 nnns
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| 773 |
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|g volume:17
|g year:2008
|g number:3
|g day:14
|g month:04
|g pages:189-98
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|h 189-98
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