The effects of carabid beetles (Coleoptera: Carabidae) on the arthropod fauna of wheat fields in Chile
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Universidad de Costa Rica
2007
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| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/6060 |
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RBT60602022-05-30T19:06:49Z The effects of carabid beetles (Coleoptera: Carabidae) on the arthropod fauna of wheat fields in Chile The effects of carabid beetles (Coleoptera: Carabidae) on the arthropod fauna of wheat fields in Chile Carrillo, R. Alarcón, R. Neira, M. Carábidos insectos fitófagos interacciones multitróficas control biológico conservativo interacción depredador-presa Carabids phytophagous insects multitrophic interactions conservative biological control predator-prey interaction 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 wheat sowing (fertilization and a pesticide had been applied during crop development). Samples were taken at approximately monthly intervals. Carabid beetles were sampled with a grid of pitfall traps and other insects were sampled with a vacuum insect net and soil cores. The genera of the carabids found are of neotropical origin. Exclusion by polythene barriers, together with removal of carabid beetles using traps, was an effective technique for controlling carabid populations in a commercial wheat crop. A reduction in the number of carabid beetles was associated 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 and removal. The action of carabid beetles on the arthropod fauna can be extremely complex, due to its predatory activity at multitrophic levels. Universidad de Costa Rica 2007-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/6060 10.15517/rbt.v55i1.6060 Revista de Biología Tropical; Vol. 55 No. 1 (2007): Volume 55 – Regular number 1 – March 2007; 101–111 Revista de Biología Tropical; Vol. 55 Núm. 1 (2007): Volumen 55 – Número regular 1 – Marzo 2007; 101–111 Revista Biología Tropical; Vol. 55 N.º 1 (2007): Volume 55 – Regular number 1 – March 2007; 101–111 2215-2075 0034-7744 10.15517/rbt.v55i1 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/6060/5765 Copyright (c) 2007 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0 |
| institution |
Universidad de Costa Rica |
| collection |
Revista de Biología Tropical |
| language |
eng |
| format |
Online |
| author |
Carrillo, R. Alarcón, R. Neira, M. |
| spellingShingle |
Carrillo, R. Alarcón, R. Neira, M. The effects of carabid beetles (Coleoptera: Carabidae) on the arthropod fauna of wheat fields in Chile |
| author_facet |
Carrillo, R. Alarcón, R. Neira, M. |
| author_sort |
Carrillo, R. |
| title |
The effects of carabid beetles (Coleoptera: Carabidae) on the arthropod fauna of wheat fields in Chile |
| title_short |
The effects of carabid beetles (Coleoptera: Carabidae) on the arthropod fauna of wheat fields in Chile |
| title_full |
The effects of carabid beetles (Coleoptera: Carabidae) on the arthropod fauna of wheat fields in Chile |
| title_fullStr |
The effects of carabid beetles (Coleoptera: Carabidae) on the arthropod fauna of wheat fields in Chile |
| title_full_unstemmed |
The effects of carabid beetles (Coleoptera: Carabidae) on the arthropod fauna of wheat fields in Chile |
| title_sort |
effects of carabid beetles (coleoptera: carabidae) on the arthropod fauna of wheat fields in chile |
| title_alt |
The effects of carabid beetles (Coleoptera: Carabidae) on the arthropod fauna of wheat fields in Chile |
| publisher |
Universidad de Costa Rica |
| publishDate |
2007 |
| url |
https://revistas.ucr.ac.cr/index.php/rbt/article/view/6060 |
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