The effects of carabid beetles (Coleoptera: Carabidae) on the arthropod fauna of wheat fields in Chile
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| Format: | Artículo científico |
| Language: | en |
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Universidad de Costa Rica
2007
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| author | R. Carrillo |
| author_facet | R. Carrillo |
| contents | The effects of carabid beetles (Coleoptera: Carabidae) on the arthropod fauna of wheat fields in Chile R. Carrillo M. Neira R. Alarcón Biología Carabids predator prey interaction phytophagous insects multitrophic interactions The role of carabid beetles in reducing populations of phytophagous insects has been an elusive subject.A field experiment was established on a commercial wheat crop (cv. Otto) with an area of 4.5 ha in Valdivia, Chile,during the spring and summer of 1996-1997. The field had been under a prairie system for two years, before wheatsowing (fertilization and a pesticide had been applied during crop development). Samples were taken at approximatelymonthly intervals. Carabid beetles were sampled with a grid of pitfall traps and other insects were sampledwith a vacuum insect net and soil cores. The genera of the carabids found are of neotropical origin. Exclusionby polythene barriers, together with removal of carabid beetles using traps, was an effective technique forcontrolling carabid populations in a commercial wheat crop. A reduction in the number of carabid beetles wasassociated with an increase in the number of springtails and arachnids, and a decrease of agromyzid adults.Phytophagous insects, such as homopterans and lepidopterous larvae, were not affected by carabid exclusion andremoval. The action of carabid beetles on the arthropod fauna can be extremely complex, due to its predatoryactivity at multitrophic levels. Rev. Biol. Trop. 55 (1): 101-111. Epub 2007 March. 31. 2007 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44955110 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.1 Vol.55 |
| format | Artículo científico |
| id | redalyc_44955110 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Universidad de Costa Rica |
| spellingShingle | The effects of carabid beetles (Coleoptera: Carabidae) on the arthropod fauna of wheat fields in Chile R. Carrillo Biología Carabids predator prey interaction phytophagous insects multitrophic interactions The effects of carabid beetles (Coleoptera: Carabidae) on the arthropod fauna of wheat fields in Chile R. Carrillo M. Neira R. Alarcón Biología Carabids predator prey interaction phytophagous insects multitrophic interactions The role of carabid beetles in reducing populations of phytophagous insects has been an elusive subject.A field experiment was established on a commercial wheat crop (cv. Otto) with an area of 4.5 ha in Valdivia, Chile,during the spring and summer of 1996-1997. The field had been under a prairie system for two years, before wheatsowing (fertilization and a pesticide had been applied during crop development). Samples were taken at approximatelymonthly intervals. Carabid beetles were sampled with a grid of pitfall traps and other insects were sampledwith a vacuum insect net and soil cores. The genera of the carabids found are of neotropical origin. Exclusionby polythene barriers, together with removal of carabid beetles using traps, was an effective technique forcontrolling carabid populations in a commercial wheat crop. A reduction in the number of carabid beetles wasassociated with an increase in the number of springtails and arachnids, and a decrease of agromyzid adults.Phytophagous insects, such as homopterans and lepidopterous larvae, were not affected by carabid exclusion andremoval. The action of carabid beetles on the arthropod fauna can be extremely complex, due to its predatoryactivity at multitrophic levels. Rev. Biol. Trop. 55 (1): 101-111. Epub 2007 March. 31. 2007 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44955110 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.1 Vol.55 |
| title | The effects of carabid beetles (Coleoptera: Carabidae) on the arthropod fauna of wheat fields in Chile |
| topic | Biología Carabids predator prey interaction phytophagous insects multitrophic interactions |
| url | https://www.redalyc.org/articulo.oa?id=44955110 |