نتایج جستجو برای: hoverflies
تعداد نتایج: 225 فیلتر نتایج به سال:
Insect pollination is one of the most important ecosystem services. Pollinator communities are rarely studied across years and crops in same location. The aim this study was to investigate pollinator community structure on five different fruit crops, as well activity groups during day their temperature preferences. observed two apple trees blueberry, strawberry, blackcurrant raspberry bushes. v...
To avoid crashing onto the floor, a free falling fly needs to trigger its wingbeats quickly and control the orientation of its thrust accurately and swiftly to stabilize its pitch and hence its speed. Behavioural data have suggested that the vertical optic flow produced by the fall and crossing the visual field plays a key role in this anti-crash response. Free fall behavior analyses have also ...
The influence of different semi-natural surroundings adjacent to apple orchards on the occurrence predatory syrphids and biological control Aphis pomi Deg. Dysaphis plantaginea Pass. was compared. Two methods catching hoverflies were used: yellow traps collect adults hand picking get larvae from aphid colonies. A total 1029 Syrphidae (26 species belonging 14 genera) subfamily Syrphinae collecte...
We investigated the phylogeographic patterns of Merodon species (Diptera, Syrphidae) in the Eastern Mediterranean. Ten species were sampled on five different islands and mainland sites as a minimum. All samples were screened for their mtDNA COI barcode haplotype diversity, and for some samples, we additionally generated genomic fingerprints. The recently established zoogeographic distribution c...
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