Predicting Invasion Probability from Botanic Gardens using Exotic Species Traits

Abstract

Preventative management, such as framework-based assessment, considered as the best option for invasive species management. Alternatively, risk assessment can be conducted based on traits of occurred invasive species to build prediction system for invasive risk assessment. This study aimed to test whether trait-based assessment system can differentiate the escaped from non-escaped exotic collections of botanic gardens and to compare the reliability of trait-based versus framework-based risk assessment on differentiating these escaped from non-escaped exotics. In this study, Bayesian logistic regression analysis was conducted to assess the reliability of framework-based and trait-based risk assessment systems. For trait-based system, clear effect of leaf trait, height, and dispersal method to escape probability was detected. For framework-based system, clear effect of Tropical Weed Risk Assessment Protocol on escape probability was detected. Leaf trait, dispersal method and height are reliable predictors for escaped probability of botanic gardens exotic collection. The fact that the reliability of trait-based assessment systems is better than the commonly used framework-based system is the main novel finding in this study. This finding implies that trait-based is better than framework-based for invasive species risk assessment approach in Indonesian botanic gardens. Trait-based assessment also a relevant tool to support management with limited resources to conduct adequate early risk assessment.

Plant Species Diversity and Degree of Homogeneity after the 2010 Eruption of Mount Merapi, Indonesia

“…Structure of vegetation after the 2010 eruption was affected by the abiotic environment conditions (Afrianto et al, 2016). The trait-based assessment can be used to identify the early risk of invasive plant species in the forest (Junaedi & Mutaqien, 2018). The heavy damage area was dominated by A. decurrens, which was invasive species.…”

Assessing the utilization of naturalized alien plant species by community to inform its management strategy: A case study in Cibodas Biosphere Reserve, West Java, Indonesia

“…There are only two studies on the utilization of alien plant species in CBR, i.e., alien plant species utilization study using secondary data (Handayani and Hidayati 2020) and ethnobotanical studies of Passiflora edulis at Sarongge (Setiawan et al 2020). This study will complement the existing studies on alien plant species in CBR in the theme of species inventory (Mutaqien et al 2011;Sunaryo et al 2012;Kudo et al 2014;Padmanaba et al 2017), taxonomical studies (Damayanto and Muhaimin 2017) and ecological studies (Junaedi and Mutaqien 2018). We expect that through the social approach conducted in this study, proper management to prevent invasion risk of NAPS to become IAPS can be formulated.…”

The potency of Myrtaceae Family from Cibodas Botanic Gardens (Cianjur, Indonesia) as botanical pesticide

“…EOs from E. urophylla, E. saligna, L. scoparium, and M. bracteata as bioherbicides caused an inhibitory effect of seed germination, shoot and root growth, as well as reducing the amount of pigment content of Acacia confusa, Amaranthus retroflexus, Amaranthus viridis, and Stachytarpetha indica. Several species related with these weeds are familiar as invasive alien species (IAS) in CBG, including Acacia farnesiana (Junaedi and Mutaqien 2018), Amaranthus spinosus (Handayani et al 2021), and Stachytarpheta jamaicensis (Handayani and Hidayati 2020). The EOs probably had a similar prospective to control the IAS in the CBG.…”