ABSTRACT
Plant interaction is a central concept for plant ecology, and the success of our research depends greatly on our ability to accurately quantify these interactions. However, this is not an easy task, as plant interactions entirely reflect the diversity, complexity, and variability of natural systems. Consequently, an array of quantitative tools reflecting many aspects of plant interactions has been developed, and efforts are continually made to improve these tools. In this chapter we will analyze and discuss current quantitative tools of widespread use in plant ecology, as well as propose and discuss some new ones.
