Sentences with phrase «damselflies prey»

Researchers from the Universities of Turku and Helsinki, Finland, are the first in the world to discover which species adult dragonflies and damselflies prey upon, as modern laboratory techniques enabled the study of the insects» diet.

Not exact matches

This implies that males, but not females, pay a high cost when they use color to communicate with other damselflies, both in terms of predation risk and visibility to prey.

In the new paper the researchers studied the conspicuous wing coloration of two species of damselflies, which are predated by birds and prey on small flies.

The researchers found that males are very conspicuous to bird predators, to other damselflies, and to prey, while females remain predominantly cryptic (i.e. hard to see against the background).

Once believed to lack a sense of smell, dragonflies and damselflies, such as Ischnura elegans (pictured), possess olfactory bulbs in their antennae that may help them track prey.