Using tiles from a Scrabble game, we present methods to create simulations of sampling exercises and to develop diversity indices. The tiles represent species, and so a known sampling universe (100 tiles) allows comparing a sample with the known distribution of species. We then offer several variations to simulate different kinds of sampling (larger sample size, more samples), alter the rarity...
In two 4-6 week modules (case studies) students explore the influences of urban practices on the ecosystem health of the Chesapeake Bay. A field trip to the Anacostia River helps introduce the case study. In a jigsaw design, students first act as expert groups or stakeholders and then are assigned into different mixed groups. During each step of the process, students utilize social and natural...
As invasive plant species spread across landscapes, costs of their economic and environmental impacts have sparked interest in regulating their sale and transport. Laws now prohibit the sale and movement of some species. State and local governments are drafting regulations that will affect horticulture, plant nurseries, and options for landscape design. Awareness of invasive plant species is...