Food preference of the rove beetle, Atheta coriaria Kraatz (Coleoptera: Staphylinidae) under laboratory conditions |
| |
作者姓名: | EVA M. BIRKEN RAYMOND A. CLOYD |
| |
作者单位: | Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana, Illinois, USA |
| |
基金项目: | We thank Amy Dickinson and Theresa Meers (University of Illinois, Urbana, IL) for providing technical support. We also wish to acknowledge Maria E. Muyot from the Illinois Statistics 0ffice, Champaign, IL for her assistance in analyzing the data. |
| |
摘 要: | A study, involving laboratory choice tests, was conducted to determine the feeding behavior, based on food preference, of the adult and larval stage of the rove beetle, Atheta coriaria Kraatz when presented with both fresh moistened oatmeal and second instar fungus gnat, Bradysia sp. nr. coprophila (Lintner) larvae in Petri dishes. Rove beetles used in this study came from a laboratory-reared colony. A rating scale from 1 to 5, based on percent missing (1 = 0 to 10%, 2 = 11 to 30%, 3 = 31 to 50%, 4 = 51 to 75%, and 5 = 76 to 100%), was used to objectively assess the amount of oatmeal and number of fungus gnat larvae consumed by each rove beetle adult and larva. In all the choice tests, A. coriaria adults and larvae preferred to feed on fungus gnat larvae (78% and 69%, respectively) significantly more so than oatmeal (9% and 5%, respectively) based on the amount of oatmeal and number of fungus gnat larvae consumed after 4 and 6 hours. There were relatively minimal differences in the amount of food consumed for both adults and larvae after 4 and 6 hours. The results of this study indicate that oatmeal may be an inexpensive supplemental food source, during the rearing process, which will not inhibit the effectiveness of rove beetles to control fungus gnat larvae when released into greenhouses.
|
关 键 词: | 甲虫 生物控制 喂食行为 真菌 生物群落 |
修稿时间: | 2006-07-25 |
Food preference of the rove beetle, Atheta coriaria Kraatz (Coleoptera: Staphylinidae) under laboratory conditions |
| |
Authors: | EVA M BIRKEN RAYMOND A CLOYD |
| |
Institution: | Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana, Illinois, USA |
| |
Abstract: | A study, involving laboratory choice tests, was conducted to determine the feeding behavior, based on food preference, of the adult and larval stage of the rove beetle, Atheta coriaria Kraatz when presented with both fresh moistened oatmeal and second instar fungus gnat, Bradysia sp. nr. coprophila (Lintner) larvae in Petri dishes. Rove beetles used in this study came from a laboratory‐reared colony. A rating scale from 1 to 5, based on percent missing (1 = 0 to 10%, 2 = 11 to 30%, 3 = 31 to 50%, 4 = 51 to 75%, and 5 = 76 to 100%), was used to objectively assess the amount of oatmeal and number of fungus gnat larvae consumed by each rove beetle adult and larva. In all the choice tests, A. coriaria adults and larvae preferred to feed on fungus gnat larvae (78% and 69%, respectively) significantly more so than oatmeal (9% and 5%, respectively) based on the amount of oatmeal and number of fungus gnat larvae consumed after 4 and 6 hours. There were relatively minimal differences in the amount of food consumed for both adults and larvae after 4 and 6 hours. The results of this study indicate that oatmeal may be an inexpensive supplemental food source, during the rearing process, which will not inhibit the effectiveness of rove beetles to control fungus gnat larvae when released into greenhouses. |
| |
Keywords: | Atheta coriaria biological control choice tests feeding behavior fungus gnats |
本文献已被 维普 等数据库收录! |
|