Similarly in An. gambiae, RCIs represent a significant and previously unrecognized source of standing and possibly cryptic genetic variation that could produce a beneficial phenotype in response to environmental perturbation or change.
"I can tell you that he is a source of long standing, well known to me, closely connected with the question of Iraq's weapons of mass destruction, easily sufficiently senior and credible to be worth reporting," he adds.
Ms. Kagan pointed to the Constitution's "necessary and proper" clause as granting Congress the power to pass the law, though the clause is not ordinarily thought of as a source of free-standing authority.
Health officials urge people to use insect repellent, wear socks and long sleeves and pants during periods of mosquito infestation, in July and August, and eliminate sources of standing water near their homes, which are insect breeding grounds.
The game is designed to teach students about the life cycle of mosquitoes and ways to control them, focusing on non-pesticide methods like cleaning sources of standing water.
To remove sources of standing water that attract mosquitoes, health officials also cautioned New Yorkers to make sure their roof gutters are draining properly and, after the rainfall of recent days, to empty or invert any containers, wading pools or other places where water can collect.
The study demonstrated that mosquito larval habitat can be mitigated in BMPs designed to remain dry between precipitation events by collecting field data that identifies where post-construction structural and managerial changes are needed to eliminate or reduce unintended sources of standing water.
Turn off and drain fountains and other sources of standing water.
These are sources of standing water, and therefore mosquito breeding grounds, that you may not have thought of.
