Articles from July 2007
The Nature Notes archive is where you'll find my past writings and natural history notes. You are currently viewing a list of articles that were published in July 2007.
New Sonar Poses Threat to Cetaceans · 30 Jul 2007
The US Navy is hoping to widen its testing of SURTASS-LFS, a new generation of active sonar expected to out-stride any previous sonar technology. The new sonar operates at lower frequencies than older systems, producing sonar pings...
Fireflies Light Up Summer Evenings · 25 Jul 2007
I remember chasing fireflies around the back yard on warm summer evenings when I was a kid. The fireflies would come out just after dusk and float in the humid late-summer air, dipping in and out of...
Where Have All the Copepods Gone? · 24 Jul 2007
The omnivorous marine copepod, Calanus finmarchicus, plays a pivotal role in the North Atlantic's food chain. It serves as rich source of fatty acids and lipids for the many species of fish that feed on it. A...
An Introduction to Cetacean Behavior · 23 Jul 2007
Cetaceans (whales, dolphins and porpoises) are difficult to observe in the wild. They spend most of their time fully submerged and without a boat, an oxygen tank, and diving certificate, you're bound to miss out on the...
What is a Rain Shadow? · 21 Jul 2007
A rain shadow is an area of dry land that lies on the leeward (or downwind) side of a mountain. Winds carry air masses up and over the mountain range and as the air is driven upward...
