“…Although systems have been made to use in non-nectar rewarding (e.g., Switzer et al, 2019), most robotic flowers work with nectar, which is the main reward plants offer their mutualistic counterparts (Nicolson & Thornburg, 2007). Nectar can be delivered in continuous (e.g., Ings & Chittka, 2008; Makino & Sakai, 2007; Moffatt, 2001; Ohashi et al, 2010; Paldi et al, 2003; Thomson et al, 2012) or discrete doses (e.g., Cnaani et al, 2006; Essenberg, 2015; Greggers & Menzel, 1993; Keasar, 2000; Nachev & Winter, 2012; Sokolowski & Abramson, 2010). The ability to automatically detect a floral visitor was also implemented in some systems, using an infrared detection system (e.g., Greggers & Menzel, 1993; Keasar, 2000; Kuusela & Lämsä, 2016; Nachev & Winter, 2012).…”