Ecologists or field biologists often work in study sites more or less accessible to a public that is not (always) familiar with the details of the research going on. People might have access to experimental plots, perhaps causing uncontrolled human - environment interactions changing the outcome of results. Do you think this happens frequently or not? Should science be conducted in protected private areas having potential consequences for bias in study site characteristics (e.g. nature reserves represent less than 8 % of the surface of the globe is is probably biased in characteristics). What is your opinion concerning costs and benefits of open access field plots used for fundamental research or education?