To evaluate whether different SLMs can support traditional differences between groups and cumulative cultural change in the context of skill learning, we study group foragers that learn what to eat and develop skills in order to process resources, and in the process consider three SLMs. Local enhancement (LE), where an animal is more likely to interact with, and learn about, objects at a particular location following observation of other animals at that location , is implemented as arising as a byproduct of grouping . Following van der Post et al. , stimulus enhancement (SE) is implemented as an increased probability to choose a given resource type having observed another forager eating that resource type, an implementation that closely follows its definition . Finally, observational learning (OL), which is a general term that represents a number of SLMs, including imitation and emulation , following Franz and Matthews , is implemented as a gain in skill that is proportional to the difference in skill between an observer and a demonstrator. Of these three SLMs, only OL affects skill learning directly. SE and LE could in principle lead to increases in skill level, but only indirectly. Such indirect increases in skill levels could occur if LE or SE lead to reduced repertoire diversity and enable foragers to spend their limited skill development time on fewer resources .