Demographic responses of Daphnia magna fed transgenic Bt-maize
Abstract The food/feed quality of a variety of genetically modified (GM) maize expressing Cry1Ab Bt-toxin was tested over the life-cycle of Daphnia magna, an arthropod commonly used as model organism in ecotoxicological studies. Demographic responses were compared between animals fed GM or unmodifie...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Bøhn, Thomas [verfasserIn] |
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| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2009 |
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| Schlagwörter: |
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| Anmerkung: |
© The Author(s) 2009 |
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| Übergeordnetes Werk: |
Enthalten in: Ecotoxicology - Springer US, 1992, 19(2009), 2 vom: 27. Okt., Seite 419-430 |
|---|---|
| Übergeordnetes Werk: |
volume:19 ; year:2009 ; number:2 ; day:27 ; month:10 ; pages:419-430 |
| Links: |
|---|
| DOI / URN: |
10.1007/s10646-009-0427-x |
|---|
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OLC2027696628 |
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| 520 | |a Abstract The food/feed quality of a variety of genetically modified (GM) maize expressing Cry1Ab Bt-toxin was tested over the life-cycle of Daphnia magna, an arthropod commonly used as model organism in ecotoxicological studies. Demographic responses were compared between animals fed GM or unmodified (UM) near isogenic maize, with and without the addition of predator smell. Age-specific data on survival and birth rates were integrated and analysed using life tables and Leslie matrices. Survival, fecundity and population growth rate (PGR) data generally disfavoured transgenic Bt-maize as feed for D. magna compared to animals fed the unmodified (UM) near isogenic line of maize. Decomposition of age-specific effects revealed that the most important contributions to a reduced PGR in the GM-fed group came from both fecundity and survival differences early in life. We conclude that juvenile and young adult stages are the most sensitive experimental units and should be prioritized in future research. These stages are often omitted in toxicological/ecotoxicological studies and in feeding trials. | ||
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10.1007/s10646-009-0427-x doi (DE-627)OLC2027696628 (DE-He213)s10646-009-0427-x-p DE-627 ger DE-627 rakwb eng 570 630 VZ 12 ssgn BIODIV DE-30 fid Bøhn, Thomas verfasserin aut Demographic responses of Daphnia magna fed transgenic Bt-maize 2009 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2009 Abstract The food/feed quality of a variety of genetically modified (GM) maize expressing Cry1Ab Bt-toxin was tested over the life-cycle of Daphnia magna, an arthropod commonly used as model organism in ecotoxicological studies. Demographic responses were compared between animals fed GM or unmodified (UM) near isogenic maize, with and without the addition of predator smell. Age-specific data on survival and birth rates were integrated and analysed using life tables and Leslie matrices. Survival, fecundity and population growth rate (PGR) data generally disfavoured transgenic Bt-maize as feed for D. magna compared to animals fed the unmodified (UM) near isogenic line of maize. Decomposition of age-specific effects revealed that the most important contributions to a reduced PGR in the GM-fed group came from both fecundity and survival differences early in life. We conclude that juvenile and young adult stages are the most sensitive experimental units and should be prioritized in future research. These stages are often omitted in toxicological/ecotoxicological studies and in feeding trials. Age structure Ecotoxicology Genetic engineering Sensitivity Substantial equivalence Survival Traavik, Terje aut Primicerio, Raul aut Enthalten in Ecotoxicology Springer US, 1992 19(2009), 2 vom: 27. Okt., Seite 419-430 (DE-627)165922230 (DE-600)34042-X (DE-576)055556809 0963-9292 nnns volume:19 year:2009 number:2 day:27 month:10 pages:419-430 https://doi.org/10.1007/s10646-009-0427-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-GEO GBV_ILN_24 GBV_ILN_70 GBV_ILN_252 GBV_ILN_4012 GBV_ILN_4082 GBV_ILN_4219 AR 19 2009 2 27 10 419-430 |
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10.1007/s10646-009-0427-x doi (DE-627)OLC2027696628 (DE-He213)s10646-009-0427-x-p DE-627 ger DE-627 rakwb eng 570 630 VZ 12 ssgn BIODIV DE-30 fid Bøhn, Thomas verfasserin aut Demographic responses of Daphnia magna fed transgenic Bt-maize 2009 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2009 Abstract The food/feed quality of a variety of genetically modified (GM) maize expressing Cry1Ab Bt-toxin was tested over the life-cycle of Daphnia magna, an arthropod commonly used as model organism in ecotoxicological studies. Demographic responses were compared between animals fed GM or unmodified (UM) near isogenic maize, with and without the addition of predator smell. Age-specific data on survival and birth rates were integrated and analysed using life tables and Leslie matrices. Survival, fecundity and population growth rate (PGR) data generally disfavoured transgenic Bt-maize as feed for D. magna compared to animals fed the unmodified (UM) near isogenic line of maize. Decomposition of age-specific effects revealed that the most important contributions to a reduced PGR in the GM-fed group came from both fecundity and survival differences early in life. We conclude that juvenile and young adult stages are the most sensitive experimental units and should be prioritized in future research. These stages are often omitted in toxicological/ecotoxicological studies and in feeding trials. Age structure Ecotoxicology Genetic engineering Sensitivity Substantial equivalence Survival Traavik, Terje aut Primicerio, Raul aut Enthalten in Ecotoxicology Springer US, 1992 19(2009), 2 vom: 27. Okt., Seite 419-430 (DE-627)165922230 (DE-600)34042-X (DE-576)055556809 0963-9292 nnns volume:19 year:2009 number:2 day:27 month:10 pages:419-430 https://doi.org/10.1007/s10646-009-0427-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-GEO GBV_ILN_24 GBV_ILN_70 GBV_ILN_252 GBV_ILN_4012 GBV_ILN_4082 GBV_ILN_4219 AR 19 2009 2 27 10 419-430 |
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10.1007/s10646-009-0427-x doi (DE-627)OLC2027696628 (DE-He213)s10646-009-0427-x-p DE-627 ger DE-627 rakwb eng 570 630 VZ 12 ssgn BIODIV DE-30 fid Bøhn, Thomas verfasserin aut Demographic responses of Daphnia magna fed transgenic Bt-maize 2009 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2009 Abstract The food/feed quality of a variety of genetically modified (GM) maize expressing Cry1Ab Bt-toxin was tested over the life-cycle of Daphnia magna, an arthropod commonly used as model organism in ecotoxicological studies. Demographic responses were compared between animals fed GM or unmodified (UM) near isogenic maize, with and without the addition of predator smell. Age-specific data on survival and birth rates were integrated and analysed using life tables and Leslie matrices. Survival, fecundity and population growth rate (PGR) data generally disfavoured transgenic Bt-maize as feed for D. magna compared to animals fed the unmodified (UM) near isogenic line of maize. Decomposition of age-specific effects revealed that the most important contributions to a reduced PGR in the GM-fed group came from both fecundity and survival differences early in life. We conclude that juvenile and young adult stages are the most sensitive experimental units and should be prioritized in future research. These stages are often omitted in toxicological/ecotoxicological studies and in feeding trials. Age structure Ecotoxicology Genetic engineering Sensitivity Substantial equivalence Survival Traavik, Terje aut Primicerio, Raul aut Enthalten in Ecotoxicology Springer US, 1992 19(2009), 2 vom: 27. Okt., Seite 419-430 (DE-627)165922230 (DE-600)34042-X (DE-576)055556809 0963-9292 nnns volume:19 year:2009 number:2 day:27 month:10 pages:419-430 https://doi.org/10.1007/s10646-009-0427-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-GEO GBV_ILN_24 GBV_ILN_70 GBV_ILN_252 GBV_ILN_4012 GBV_ILN_4082 GBV_ILN_4219 AR 19 2009 2 27 10 419-430 |
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10.1007/s10646-009-0427-x doi (DE-627)OLC2027696628 (DE-He213)s10646-009-0427-x-p DE-627 ger DE-627 rakwb eng 570 630 VZ 12 ssgn BIODIV DE-30 fid Bøhn, Thomas verfasserin aut Demographic responses of Daphnia magna fed transgenic Bt-maize 2009 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2009 Abstract The food/feed quality of a variety of genetically modified (GM) maize expressing Cry1Ab Bt-toxin was tested over the life-cycle of Daphnia magna, an arthropod commonly used as model organism in ecotoxicological studies. Demographic responses were compared between animals fed GM or unmodified (UM) near isogenic maize, with and without the addition of predator smell. Age-specific data on survival and birth rates were integrated and analysed using life tables and Leslie matrices. Survival, fecundity and population growth rate (PGR) data generally disfavoured transgenic Bt-maize as feed for D. magna compared to animals fed the unmodified (UM) near isogenic line of maize. Decomposition of age-specific effects revealed that the most important contributions to a reduced PGR in the GM-fed group came from both fecundity and survival differences early in life. We conclude that juvenile and young adult stages are the most sensitive experimental units and should be prioritized in future research. These stages are often omitted in toxicological/ecotoxicological studies and in feeding trials. Age structure Ecotoxicology Genetic engineering Sensitivity Substantial equivalence Survival Traavik, Terje aut Primicerio, Raul aut Enthalten in Ecotoxicology Springer US, 1992 19(2009), 2 vom: 27. Okt., Seite 419-430 (DE-627)165922230 (DE-600)34042-X (DE-576)055556809 0963-9292 nnns volume:19 year:2009 number:2 day:27 month:10 pages:419-430 https://doi.org/10.1007/s10646-009-0427-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-GEO GBV_ILN_24 GBV_ILN_70 GBV_ILN_252 GBV_ILN_4012 GBV_ILN_4082 GBV_ILN_4219 AR 19 2009 2 27 10 419-430 |
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Demographic responses of Daphnia magna fed transgenic Bt-maize |
| abstract |
Abstract The food/feed quality of a variety of genetically modified (GM) maize expressing Cry1Ab Bt-toxin was tested over the life-cycle of Daphnia magna, an arthropod commonly used as model organism in ecotoxicological studies. Demographic responses were compared between animals fed GM or unmodified (UM) near isogenic maize, with and without the addition of predator smell. Age-specific data on survival and birth rates were integrated and analysed using life tables and Leslie matrices. Survival, fecundity and population growth rate (PGR) data generally disfavoured transgenic Bt-maize as feed for D. magna compared to animals fed the unmodified (UM) near isogenic line of maize. Decomposition of age-specific effects revealed that the most important contributions to a reduced PGR in the GM-fed group came from both fecundity and survival differences early in life. We conclude that juvenile and young adult stages are the most sensitive experimental units and should be prioritized in future research. These stages are often omitted in toxicological/ecotoxicological studies and in feeding trials. © The Author(s) 2009 |
| abstractGer |
Abstract The food/feed quality of a variety of genetically modified (GM) maize expressing Cry1Ab Bt-toxin was tested over the life-cycle of Daphnia magna, an arthropod commonly used as model organism in ecotoxicological studies. Demographic responses were compared between animals fed GM or unmodified (UM) near isogenic maize, with and without the addition of predator smell. Age-specific data on survival and birth rates were integrated and analysed using life tables and Leslie matrices. Survival, fecundity and population growth rate (PGR) data generally disfavoured transgenic Bt-maize as feed for D. magna compared to animals fed the unmodified (UM) near isogenic line of maize. Decomposition of age-specific effects revealed that the most important contributions to a reduced PGR in the GM-fed group came from both fecundity and survival differences early in life. We conclude that juvenile and young adult stages are the most sensitive experimental units and should be prioritized in future research. These stages are often omitted in toxicological/ecotoxicological studies and in feeding trials. © The Author(s) 2009 |
| abstract_unstemmed |
Abstract The food/feed quality of a variety of genetically modified (GM) maize expressing Cry1Ab Bt-toxin was tested over the life-cycle of Daphnia magna, an arthropod commonly used as model organism in ecotoxicological studies. Demographic responses were compared between animals fed GM or unmodified (UM) near isogenic maize, with and without the addition of predator smell. Age-specific data on survival and birth rates were integrated and analysed using life tables and Leslie matrices. Survival, fecundity and population growth rate (PGR) data generally disfavoured transgenic Bt-maize as feed for D. magna compared to animals fed the unmodified (UM) near isogenic line of maize. Decomposition of age-specific effects revealed that the most important contributions to a reduced PGR in the GM-fed group came from both fecundity and survival differences early in life. We conclude that juvenile and young adult stages are the most sensitive experimental units and should be prioritized in future research. These stages are often omitted in toxicological/ecotoxicological studies and in feeding trials. © The Author(s) 2009 |
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| title_short |
Demographic responses of Daphnia magna fed transgenic Bt-maize |
| url |
https://doi.org/10.1007/s10646-009-0427-x |
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false |
| author2 |
Traavik, Terje Primicerio, Raul |
| author2Str |
Traavik, Terje Primicerio, Raul |
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165922230 |
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| doi_str |
10.1007/s10646-009-0427-x |
| up_date |
2024-07-03T16:20:50.561Z |
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1803575519412748288 |
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