Arborists conduct citywide tree census KVBC - Las Vegas,NV,USA
Watkins is a master arborist. There are less than 250 of them in the country. He and his wife Mary are part of a team of tree specialists hired by Las Vegas for an ambitious, ecological project: cataloging and recording every tree in the city's urban forest.
"(It's a) tool for the city - being able to know what they have as far as species diversity, know what they have as far as the overall health and quality of the existing trees, and they can create a road map to increase their existing canopy cover," continues Watkins.
The reason for surveys like this is simple: You can't manage an urban forest until you know what you have.