The phenology of Bembidion spp. ground beetles (Coleoptera: Carabidae) in differently managed winter wheat fields | Bembidion ģints skrejvaboļu (Coleoptera: Carabidae) fenoloģija atšķirīgi apsaimniekotos ziemas kviešu sējumos
2014
Gailis, J., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Agriculture. Inst. of Soil and Plant Sciences | Turka, I., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Agriculture. Inst. of Soil and Plant Sciences
Some of small-sized Bembidion ground beetles (Carabidae) often inhabit various cereal crops and are feeding mainly on aphids. They also can take a dominant position into assemblage of all ground beetle species. The objective of this research was to compare phenology of activity density of Bembidion ground beetles in differently managed winter wheat (Triticum aestivum) fields. The research was carried out at Latvia University of Agriculture Study and Research Farm „Peterlauki” (56 o 30’39.38’’N; 23o 41’30.15’’E) using 12 differently cultivated and pre-cropped sample plots (0.25 ha) during 2012. Totally six Bembidion species – B. quadrimaculatum, B. lampros, B. properans, B. guttula, B. mannerheimii and B. obtusum – were observed. Different pre-crops did not significantly affect the activity density of Bembidion beetles, but traditionally tilled (ploughed) soil promoted significantly higher activity density of Bembidion ground beetles than minimally tilled soil throughout vegetation season.
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