“…Collaboration can occur among a range of different actors and/or across spatial boundaries (political, municipal and others). Actors range from governments (local, state and national), councils, public and private agencies, non-governmental organisations (NGOs), project partners, to a network of additional stakeholders [7][8][9][10].The most common form of cross-boundary collaboration is that between direct neighbours that share terrestrial or maritime geographic boundaries. These include a broad range of collaboration avenues, such as shared or coordinated protected areas and joint management plans (e.g., the Natura2000 network), trans-boundary protected areas and peace parks [11], shared conservation action plans for recovering threatened species or ecosystems; integrated river basin management programs, joint plans for mitigating invasive alien species impacts (Box 3), joint research projects and other spatially-based collaborative efforts.…”