What’s your strategy for beating the heat? One of the favorite approaches here in the Washington D.C. area is to stay indoors with the air conditioning cranked up. For a wildlife photographer, though, that is not really an option. My subjects manage to survive in the heat of the day and I need to be other there if I want to photograph them.
Birds seem to be most active early in the day and late in the day, when temperatures are usually coolest, but many dragonflies seem to thrive in bright, direct sunlight. How do they do it? How do they regulate their body temperatures?
If you have ever observed dragonflies on a hot summer day, you may have seen some of them perching in a hand-stand like position, like an Olympic gymnast. This is often referred to as the obelisk posture. The abdomen is raised to minimize the surface area exposed to the sun and when the sun is close to directly overhead, the vertical alignment of the dragonfly’s body suggests an obelisk, like the Washington Monument that I see every time that I venture into the city.
Here are a couple of shots of a Lancet Clubtail dragonfly (Gomphus exilis) that I spotted this past Monday at Jackson Miles Wetland Refuge, only a few miles from where I live. Unlike some clubtail dragonflies, like the Dragonhunter that I featured recently, the Lancet Clubtail is pretty small, about 1.7 inches (43 mm) in length. What I find to be particularly stunning about this dragonfly are its deep blue eyes, which seemed to draw me in.
Initially the dragonfly had its abdomen at an angle, but gradually it kept raising it higher until it ended up in an almost perfect obelisk pose. If I were a judge at the Olympics, I would give this dragonfly a perfect score of 10.
© Michael Q. Powell. All rights reserved.
Read Full Post »
Mike Powell 