Traditional knowledge is important in the course of a broad range of questions related to the relationship
between humans and nature (Souto & Ticktin 2012). Traditional knowledge is not a static entity for any set
of skills in any culture, and people often change their techniques when easier methods become available.
Different groups of people in various parts of the world perceive and interact with nature differently
and have different traditions of environmental knowledge (Nakashima et al. 2012). In the tropics, smallscale
farmers rely on HGs for invaluable livelihood services, such as food security, medicinal plants and
market alternatives (Camou-Guerrero et al. 2008; Souto & Ticktin 2012).