Water and aquatic foods in revised principles of agroecology can accelerate food systems transformation.

The interaction between climate change and agricultural intensification contributes to biodiversity loss, while widespread degradation of land and water undermine food system productivity. Agroecological principles aim to guide food systems transformation but rarely refer to water or aquatic foods, which are critical elements of nutritious, sustainable and equitable food systems. Here we examine the principles and frameworks presented in agroecological literature and suggest rephrasing of six of the principles to incorporate water, aquatic foods and land- to seascapes.

Position around a tree: consequences for pheromone detection.

The air flow pattern expected around a cylindrical object such as a tree in slow wind, is predicted from fluid mechanics to have areas of faster flow (upwind) and slower recirculating flow with eddies (downwind). An organism located on the surface of a tree would experience different flow depending on its circumferential position. If that organism was searching for a chemical signal, such as a pheromone plume, it might maximize its probability of chemodetection by placing itself in areas of greatest flow speed (the upwind surface of the cylinder, i.