|To:||David Rees <>|
|Subject:||Day of the Dragon|
|From:||Harvey Perkins <>|
|Date:||Wed, 21 Dec 2016 21:21:48 +0000|
Geoff, David - some interesting observations. In all the time I've spent surveying dragonflies I've rarely seen much in the way of predation. I've seen Bee-eaters that had caught them, but that is the only bird I've seen with a captured dragonfly. On Monday this week I witnessed an asilid (robber fly) capture and begin to eat a male Red & Blue Damselfly (which was longer than it was). Otherwise I've seen many damselflies caught in spiders' webs (mainly Tetragnathidae - long-jawed spiders).
I think the aerial abilities of dragonflies, despite the hovering tendency of some species, including the Tau Emerald, would normally give them the advantage over most birds. They often have scuffles in the air, mostly intra-specific but also inter-specific, which might distract them and make them more vulnerable; and females might also be more vulnerable when depositing eggs. But by and large it seems to me that predation by birds is fairly uncommon. More than happy to be given further evidence to the contrary!
On 21 December 2016 at 15:36, David Rees <> wrote:
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