Intentionally introduced species: more easily invited than removed

Abstract

Alien species are brought into countries world wide on a massive scale for agricultural production, ex situ conservation, landscape aesthetics, gardens, and ecosystem restoration. Unfortunately, some of these species have escaped and adversely impacted on regional as well as global biodiversity conservation and agricultural production. To reduce such risks, it is necessary to implement specific and effective measures. Since various government departments and institutions are involved in the management of alien species, it is difficult to prevent native and agroecosystems from being invaded by invited species. We propose the establishment of a supervision and inspection continuum over intentional species introduction, similar to that which exists in some countries over unintentional species introductions. Namely, a justification of the necessity to import, a risk assessment, assurances as to provision of an adequate containment facility assessment, and a damagelimitation protocol should that need to be invoked. These requirements should be satisfied before an alien species is knowingly imported, and the necessary follow-up supervision is important post-importation.

Inventory and Risk Analysis of Naturalized Exotic Species from the Cibodas Botanical Garden Collection Recorded in the Remnant Forest of Cibodas

“…The correlation between TWRAP and RD is 0.11, therefore the use of TWRAP is presumably fit for the early plans of choosing exotic species as garden collections but not related to the actual distributions of the species. Botanic gardens play role in the introduction pathway for horticulture (Hulme, 2014;Xu et al, 2014;Asih, Letari, Warseno & Iryadi, 2018;Ni & Hulme, 2021;). We found 26 CBG collections naturalized in remnant forests that set the alarm for future improvement in handling exotic collections.…”