the Southern African Plant Invaders Atlas https://citsci.co.za/ - - PowerPoint PPT Presentation

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Mar 06, 2024 282 likes •474 views

the Southern African Plant Invaders Atlas https://citsci.co.za/ http://academic.sun.ac.za/cib/ iNaturalist Hulbert (2016) South African Journal of Science CITIZEN GENERAL ACTIVE PASSIVE SCIENCE SURVEILLANCE SURVEILLANCE SURVEILLANCE

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the Southern African Plant Invaders Atlas

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https://citsci.co.za/ Hulbert (2016) South African Journal of Science iNaturalist http://academic.sun.ac.za/cib/

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Fig. 3.3 from Wilson, Panetta, and Lindgren (2017)

Detecting and Responding to Alien Plant Incursions, Cambridge University Press (based on Hester and Cacho 2017 Biological Invasions)

PASSIVE SURVEILLANCE ACTIVE SURVEILLANCE CITIZEN SCIENCE GENERAL SURVEILLANCE REPORTED BY:

Members of the public Community groups, citizen science groups Farmers, land- managers Agricultural extension

fficers

Invasive plant surveillance teams

EXAMPLE ACTIVITIES:

Sighting requests

n radio,

television, and newspapers Sighting requests

n specific

newsletters or e- mail list servers Regional meetings and presentations Alert lists with requirements for reporting Surveying sentinel sites and identified high- risk locations

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Lesley’s road-side surveys Ad hoc reports Integration of historical data? iNaturalist?

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1979 – 2018 Lesley Henderson ~62 500 records in 1 427 QDGCs

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1979 – 2018 SAPIA participants ~32 000 records in 1 519 QDS

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Dissemination of data

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Analysis of data

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Rouget et al. 2004 DDI

Species distribution models

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Rouget et al. 2015 South African Journal of Botany

Alien biomes

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van Wilgen, B.W. & Wilson, J.R. (2018) SANBI and CIB Wilson et al. (2018) Journal of Applied Ecology, 55, 2612–2620

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Biocontrol has slowed spread 2000–2016: Naturalised plants increased from 601 to 773 species

5. Number and status of

alien species

Henderson & Wilson (2017) ABC Bothalia

9. Alien species

richness

20. Effectiveness of

species treatments

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Department of Environmental Affairs (2014) Government Gazette Richardson et al. in press

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Regularly used!

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https://www.wits.ac.za/media/migration/files/cs-38933-fix/migrated-pdf/pdfs- 7/Alien%20Weeds%20and%20Invasive%20Plants%20A%20Complete%20guide%20to%20d eclared%20weeds%20and%20invaders%20in%20South%20Africa%20Author%20Lesley%20 Hendersoncompressed.pdf https://www.sanbi.org/wp-content/uploads/2018/11/National-Status-Report-web- 6MB.pdf

http://www.arc.agric.za/arc-ppri/Pages/Newsletters.aspx http://invasives.org.za/ invasivespecies@sanbi.org jrwilson@sun.ac.za

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Jaca & Mkhize 2015 BioInvasions Records