Effects of prey type, prey density and predator presence on behaviour and predation risk in a larval damselfly
growth rates were lower in the free-ranging-dragonfly treatment, larvae recovered from cages in that treatment were intrinsically smaller than larvae recovered in the other two treatment (McPeek unpubl.
Y fursen las amrywiol, Coenagrion pulcellum, Variable Damselfly
Dual function of the damselfly
penis: sperm removal and transfer.
Science and surveys aside, the next time you see a dragonfly or damselfly
, consider this: you are, in a way, witnessing what the dinosaurs saw: insects of ancient lineage, resplendent in color, with aerobatic skills honed through millions of years of evolution.
The first dragonfly of the year, the large red damselfly
, will start to appear in the next couple of weeks.
lentulus was expected to occur in Mississippi, the damselfly
The most common is the blue-tailed damselfly
which has evolved to be tolerant of pollution.
Efforts to safeguard Britain's diverse wildlife have helped to revive dwindling species such as the damselfly
Cannibalism is present in many damselfly
species (Johansson 1992, 1993, Anholt 1994, Fincke 1994) and has been suggested to be an important factor for larval mortality in the field (Wissinger 1989, VanBuskirk 1992).
Then it stabs its fangs into the damselfly
and squirts in some poison.