"Culling" means the process of selecting and removing certain individuals or items from a group or population, usually to improve its overall quality or to manage its size. Full definition
Nelson gives no clues as to what he will cook up in Venice, but, he concedes, it is a new work, and he remains committed to his up - from - the - ground style of building installations from materials culled from the world around him. (artnews.com)
Yet he said recently that it takes «political courage» to pursue the policy of culling of badgers in the face of widespread opposition. (conservativehome.blogs.com)
While this would reduce the pressure on larger mammals, this may or may not stop the practice of culling in parks. (dotearth.blogs.nytimes.com)