“…e n v i r o n m e n t a l s c i e n c e & p o l i c y x x x ( 2 0 1 5 ) x x x -x x x and the constraints of the several parties employing them, yet robust enough to maintain a common identity across sites'' (Star and Griesemer, 1989, p. 393). Boundary objects have been used in many studies analysing co-operation between actors from different social worlds (Iorio and Taylor, 2014;Mattor et al, 2014;Star and Griesemer, 1989;Star, 2010;Swart and Van der Windt, 2012;Turnhout, 2009). For the assessment of significant effect, actors from research institutes, governmental departments and nature organisations, with different perspectives and daily activities all contributed their interpretation of what significance means.…”