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Showing 1 to 6 of 6 for “"Sawfly"”.
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Population genetics of the farmland sawfly <em>Dolerus aeneus</em> (Hymenoptera, Symphyta)
… of bird species dependent on them are limited. Sawfly populations may be more than usually susceptible to disturbance because firstly, their adult stages are poor dispersers and secondly, some species possess Complementary Sex Determination (CSD), a mechanism which can produce sterile males …
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Systematics and Biogeography of the Sawfly Genus Pristiphora Latreille (Hymenoptera: Tenthredinidae) in North America
Sawflies in the subfamily Nematinae (Hymenoptera: Tenthredinidae) are cold-adapted insects that reach their greatest species richness in temperate, boreal, and arctic/subarctic regions of the Northern Hemisphere – a pattern that runs counter to that of most other organisms. The reasons for this …
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Local Variation in the Chemical Defence of European Pine Sawfly (Neodiprion sertifer): Effects of Host Tree Chemistry and Social Environment
… and local abundances. The European pine sawfly (Neodiprion sertifer) is an example of a chemically defending forest pest insect that sequesters resinous acids from the host plant for its antipredator defence. It is also a social insect that feeds and defends cooperatively in a group …
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Männyn neulaskadon arviointi laserkeilauksella
… Scots pine defoliation caused by the common pine sawfly (Diprion pini L.). The study area is situated in Ilomantsi district, eastern Finland. Study materials included high-pulse airborne laser scannings from July and October 2008. Reference data consisted of 90 circular field plots measured in …