Assessing the level of compliance with alien plant regulations in a large African protected area

Keet, Jan-Hendrik; Datta, Arunava; Foxcroft, Llewellyn C.; Kumschick, Sabrina; Nichols, Geoff; Richardson, David M.; Wilson, John R.

doi:10.1007/s10530-022-02883-7

Cited by 7 publications

(3 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two of these species were shared between the two sampling sites, namely, Aptenia cordifolia and Tephrosia grandiflora , while five other species were recorded only within the university campus. This indicates an increase in the movement of native species outside their historic native range and the lack of reporting of this phenomenon globally [ 48 ]. We encourage the landscaping services at different institutions to use native plant species from the same biogeographical region for ornamental or landscaping purposes, as native species pose risks of forming native-alien populations in different countries and have been reported to threaten biodiversity [ 49 , 50 ].…”

Section: Discussionmentioning

confidence: 99%

Assessing Alien Plant Invasions in Urban Environments: A Case Study of Tshwane University of Technology and Implications for Biodiversity Conservation

Nelufule,

Shivambu,

Shivambu

et al. 2024

Plants

View full text Add to dashboard Cite

Preserving the dwindling native biodiversity in urban settings poses escalating challenges due to the confinement of remaining natural areas to isolated and diminutive patches. Remarkably scarce research has scrutinised the involvement of institutions, particularly universities, in introducing alien plant species in South Africa, thus creating a significant gap in effective monitoring and management. In this study, the Tshwane University of Technology in Tshwane Metropole, South Africa serves as a focal point, where we conducted a comprehensive survey of alien plants both within the university premises and beyond its confines. The investigation involved the classification of invasion status and a meticulous assessment of donor and recipient dynamics. Our findings encompass 876 occurrence records, revealing the presence of 94 alien plant species spanning 44 distinct families. Noteworthy occurrences among the dominant plant families are Asteraceae and Solanaceae. Herbaceous and woody plants emerged as the most prevalent alien species, with common representation across both sampling sites. A substantial majority of recorded species were initially introduced for horticultural purposes (51%) before escaping and establishing self-sustaining populations (62%). Furthermore, 43 species identified are listed in South African invasive species legislation, with some manifesting invasive tendencies and altering the distribution of native species in the remaining natural areas. The notable overlap in species observed between the university premises and adjacent areas provides crucial insights into the influence of institutions on the dynamics of plant invasions within the urban landscape. This underscores the prevailing gaps in the management of invasive alien plants in urban zones and accentuates the imperative of an integrated approach involving collaboration between municipalities and diverse institutions for effective invasive species management in urban environments.

show abstract

Section: Discussionmentioning

confidence: 99%

Assessing Alien Plant Invasions in Urban Environments: A Case Study of Tshwane University of Technology and Implications for Biodiversity Conservation

Nelufule,

Shivambu,

Shivambu

et al. 2024

Plants

View full text Add to dashboard Cite

show abstract

“…Standard approaches and tools for measuring and recording survey effort are currently not developed, and harmonized guidelines will be needed. Examples of relevant data on the survey effort include measures, such as hectares surveyed for IAS per assessment period (Cheney et al., 2018), numbers of inspections of high‐risk establishment sites (Lovell et al., 2021), volume of cargo inspected (Miralles et al., 2021), time spent searching for a specific species (Mehta et al., 2007), number of high conservation value areas surveyed for IAS (Keet et al., 2022), and proportion of cells with expected presences that have relevant observations, the metric underpinning the Species Information Index (Oliver et al., 2021). New monitoring technologies are increasingly available, such as remotely sensed products (e.g., unmanned aerial vehicle (UAV), satellite, and camera traps) or eDNA approaches, which through fixed elements of deployment protocols (e.g., area surveyed and number of traps or samples) provide quantifiable, efficient, and effective ways to survey a subset of IAS for rapid and systematic observations (van Rees et al., 2022).…”

Section: Data Solutionsmentioning

confidence: 99%

Invasion trends: An interpretable measure of change is needed to support policy targets

McGeoch,

Buba,

Arlé

et al. 2023

Conservation Letters.

View full text Add to dashboard Cite

The Kunming‐Montreal Global Biodiversity Framework (GBF) calls for a 50% reduction in rates of invasive alien species establishment by 2030. However, estimating changes in rates of introduction and establishment is far from straightforward, particularly on a national scale. Variation in survey effort over time, the absence of data on survey effort, and aspects of the invasion process itself interact in ways that make rate estimates from naive models of invasion trends inaccurate. To support progress toward robust global and national reporting against the GBF invasions target, we illustrate this problem using a combination of simulations, and global and national scale case studies. We provide recommendations and a clear set of steps that are needed for progress. These include routine collection of survey effort data as part of surveillance and monitoring protocols and working closely with researchers to develop meaningful estimates of change in biological invasions. Better awareness of this challenge and investment in developing robust approaches will be required from Parties if progress on Target 6 of the GBF is to be tracked and achieved.

show abstract

“…Standard approaches and tools for measuring and recording survey effort are currently not developed, and harmonized guidelines will be needed. Examples of relevant data on the survey effort include measures, such as hectares surveyed for IAS per assessment period (Cheney et al, 2018), numbers of inspections of high-risk establishment sites (Lovell et al, 2021), volume of cargo inspected (Miralles et al, 2021), time spent searching for a specific species (Mehta et al, 2007), number of high conservation value areas surveyed for IAS (Keet et al, 2022), and proportion of cells with expected presences that have relevant observations, the metric underpinning the Species Information Index (Oliver et al, 2021). New monitoring technologies are increasingly available, such as remotely sensed products (e.g., unmanned aerial vehicle (UAV), satellite, and camera traps) or eDNA approaches, which through fixed elements of deployment protocols (e.g., area surveyed and number of traps or samples) provide quantifiable, efficient, and effective ways to survey a subset of IAS for rapid and systematic observations (van Rees et al, 2022).…”

Section: Data Solutionsmentioning

confidence: 99%

Invasion trends: An interpretable measure of change is needed to support policy targets

McGeoch

2023

Preprint

View full text Add to dashboard Cite

The Kunming-Montreal Global Biodiversity Framework (GBF) calls for a 50% reduction in rates of invasive alien species establishment by 2030. However, estimating changes in rates of introduction and establishment is far from straightforward, particularly on a national scale. Variation in survey effort over time, the absence of data on survey effort, and aspects of the invasion process itself interact in ways that make rate estimates from naive models of invasion trends inaccurate. To support progress towards robust global and national reporting against the GBF invasions target, we illustrate this problem using a combination of simulations, and global and national scale case studies. We provide recommendations and a clear set of steps that are needed for progress. These include routine collection of survey effort data as part of surveillance and monitoring protocols and working closely with researchers to develop meaningful estimates of change in biological invasions. Better awareness of this challenge and investment in developing robust approaches will be required from Parties if progress on Target 6 of the GBF is to be tracked and achieved.

show abstract

Assessing the level of compliance with alien plant regulations in a large African protected area

Cited by 7 publications

References 39 publications

Assessing Alien Plant Invasions in Urban Environments: A Case Study of Tshwane University of Technology and Implications for Biodiversity Conservation

Assessing Alien Plant Invasions in Urban Environments: A Case Study of Tshwane University of Technology and Implications for Biodiversity Conservation

Invasion trends: An interpretable measure of change is needed to support policy targets

Invasion trends: An interpretable measure of change is needed to support policy targets

Contact Info

Product

Resources

About