In the absence of mortality threat, growth rates of damselflies increased with warming until about 23.5 °C and then began to decline, a typical unimodal response to changes in temperature. (link.springer.com)
Researchers have seen other species resort to parthenogenesis when isolated, such as damselflies in the Azores. (scientificamerican.com)
Their results imply that males, but not females, pay a high cost when using color to communicate with other damselflies, both in terms of predation risk and visibility to prey. (sciencedaily.com)