A burning desire for smoke? Sampling insects favoured by forestfire in the absence of fire

Milberg, PerLinköpings universitet,Biologi,Tekniska högskolan,Linköping University (författare)

Fire-favoured insects are difficult to sampleexcept opportunistically after forest fires. Here, we tested ifsmoke from a small fire could be an efficient way to samplesuch insects. Insects were sampled over ca. 10 h hours, byhand-picking and netting on screens put up around the fire.Two specimens of the rare and redlisted Hormopeza spp.(Diptera, Empididae) were caught. Large numbers([20,000) of Microsania spp. (Diptera, Platypezidae) werecaught, but none in the absence of smoke. The numbers ofMicrosania spp. clearly peaked in late afternoon, and ashort sampling period would be sufficient if targeting onlythis taxon. Of the almost 200 species of Coleoptera, 17 %were considered as fire-favoured, contributing 9 % of thespecimens, suggesting low efficiency of the method for thisgroup. Using 23 sites differing in fire history, catches ofMicrosania spp. were unaffected by numbers and area offorest fire (preceding 5 years and within 10 km radius overthe sampling sites). In contrast, there was a weak trend forthe proportion of fire-favoured Coleoptera to increase withincreasing number of fires. To conclude, smoke as producedin our study can clearly attract fire-favoured Diptera,but smoke had only a weak effect on fire-favoured Coleopterain the study area. It is still likely that selectivelypicking specimens of species attracted to smoke is a morecost-efficient method than using, e.g., Malaise traps thatcatch indiscriminately.

Bergman, Karl-OlofLinköpings universitet,Biologi,Tekniska högskolan(Swepub:liu)karbe95 (författare)
Norman, HenrikLinköpings universitet,Biologi,Tekniska högskolan (författare)
Pettersson, Roger B.Department of Wildlife, Fish and Environmental Studies, SLU, 901 83 Umea°, Sweden (författare)
Westerberg, LarsLinköpings universitet,Biologi,Tekniska högskolan(Swepub:liu)larwe75 (författare)
Wikars, Lars-OveHovgården 66, Borlänge, Sweden (författare)
Jansson, NicklasLinköpings universitet,Biologi,Tekniska högskolan(Swepub:liu)nicja39 (författare)
Mugerwa Pettersson, RogerSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vilt, fisk och miljö,Department of Wildlife, Fish and Environmental Studies(Swepub:slu)47594 (författare)
Linköpings universitetBiologi (creator_code:org_t)
Sveriges lantbruksuniversitet

Ingår i:Journal of Insect Conservation: Springer19:1, s. 55-651366-638X1572-9753

Av författaren/redakt...: Milberg, Per; Bergman, Karl-Ol ...; Norman, Henrik; Pettersson, Roge ...; Westerberg, Lars; Wikars, Lars-Ove; visa fler...; Jansson, Nicklas; Mugerwa Petterss ...; visa färre...

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