<p>The subject of interspecies justice has been gaining increasing attention, but accounts of the respective responsibilities for realising interspecies justice have largely been lacking by comparison. That is, who holds which duties and what do these duties require in different contexts? Against the background of this broader research area, this paper makes some headway on this theoretical desideratum by elaborating on the different <i>levels of burden sharing for distributive interspecies justice</i> within the context of just habitat conservation. This paper thereby builds on an account of interspecies justice concerning the just distribution of ecological space in order to elaborate on two principal scenarios of burden sharing which are not mutually exclusive but layered: (1) the burdens of <i>maintaining</i> interspecies justice once distributive justice is achieved; and (2) the burdens of <i>lessening</i> and ultimately eliminating interspecies injustices. Based on three different circumstances of scarcity and two sustainability requirements, two kinds of burdens and respective responsibilities are distinguished in this context: conservation and transition costs.</p>