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Flight period and ecology of Trypodendron proximum (Niijima) (Col., Scolytidae) in Finland
Author(s) -
Martikainen P.
Publication year - 2000
Publication title -
journal of applied entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0931-2048
DOI - 10.1046/j.1439-0418.2000.00446.x
Subject(s) - biology , bark beetle , ecology , zoology , bark (sound)
The flight period of Trypodendron proximum was studied by pheromone‐baited window traps in three localities in Finland. Trypodendron proximum started to fly at +13°C, and swarming peaked at around +15°C, which was the threshold temperature for the flight of Trypodendron lineatum. There was only a little overlap in the flight periods of T. proximum and other Trypodendron species. Trypodendron proximum constituted 4.5–22.1% of the total number of Trypodendron individuals caught. Field observations indicated that T. proximum may overwinter in the bark of standing trees, which would enable the beetles to fly when there is still snow. Most of the field observations of T. proximum are from dead standing Norway spruces and Scots pines in Finland.