Table 22.1
The status of invasive alien animal control projects in South Africa.
‘Status in NEM:BA’ refers to the category in which the species is listed under the
Alien & Invasive Species regulations.
‘Assessment of control status in van Wilgen and Wilson (2018)’ refer to assessment of control effectiveness reported in the
National Status Report on Biological Invasions. The
final column gives the updated assessment based on information included in this chapter. The regulatory
category
‘context specific’ applies to species whose status in NEM:BA depends on the location of the population. See van Wilgen et al. (2020), Chap. 1 for definitions
of the NEM:BA categories
Taxon
Species
Assessment of control status
in van Wilgen and Wilson
(2018)
Status in NEM:BA
Aim of control
project
Status of control project
Freshwater
invertebrate
Procambarus clarkii
(Red Swamp
Crayfish)
Failed
Prohibited
Eradication
Not subject to control; present at one or
more sites in South Africa
Marine
invertebrate
Carcinus maenas
(European Shore
Crab)
Not assessed
1b
Pilot project and
data
gathering
Not subject to control at present;
control probably not worthwhile as
not occupying undisturbed habitats
and re-invasion in harbours is
highly likely
Terrestrial
invertebrate
Otala punctata
(Freckled Edible
Snail)
Successful
Unlisted
Eradication
No control necessary
Terrestrial
invertebrate
Trogoderma granarium
(Khapra Beetle)
Successful
1b
Eradication
No control necessary at present
(prevention is in place)
Terrestrial
invertebrate
Bactrocera invadens
(Asian Fruit Fly)
Failed
1a
Containment
Not currently subject to control;
potential for successful control
(a related species B. dorsalis
is
controlled)
Terrestrial
invertebrate
Polistes dominula
(European Paper
Wasp)
Under consideration
1b
Containment
No longer subject to control due to
large extent of invasive population
in urban areas of the Western Cape
Terrestrial
invertebrate
Vespula germanica
(German Wasp)
Under consideration
1b
Containment
Subject to control in local areas;
eradication may be feasible in
future
(continued)
22 Alien and Invasive Animal Control Projects
633
The status of invasive alien animal control projects in South Africa.
‘Status in NEM:BA’ refers to the category in which the species is listed under the
Alien & Invasive Species regulations.
‘Assessment of control status in van Wilgen and Wilson (2018)’ refer to assessment of control effectiveness reported in the
National Status Report on Biological Invasions. The
final column gives the updated assessment based on information included in this chapter. The regulatory
category
‘context specific’ applies to species whose status in NEM:BA depends on the location of the population. See van Wilgen et al. (2020), Chap. 1 for definitions
of the NEM:BA categories
Taxon
Species
Assessment of control status
in van Wilgen and Wilson
(2018)
Status in NEM:BA
Aim of control
project
Status of control project
Freshwater
invertebrate
Procambarus clarkii
(Red Swamp
Crayfish)
Failed
Prohibited
Eradication
Not subject to control; present at one or
more sites in South Africa
Marine
invertebrate
Carcinus maenas
(European Shore
Crab)
Not assessed
1b
Pilot project and
data
gathering
Not subject to control at present;
control probably not worthwhile as
not occupying undisturbed habitats
and re-invasion in harbours is
highly likely
Terrestrial
invertebrate
Otala punctata
(Freckled Edible
Snail)
Successful
Unlisted
Eradication
No control necessary
Terrestrial
invertebrate
Trogoderma granarium
(Khapra Beetle)
Successful
1b
Eradication
No control necessary at present
(prevention is in place)
Terrestrial
invertebrate
Bactrocera invadens
(Asian Fruit Fly)
Failed
1a
Containment
Not currently subject to control;
potential for successful control
(a related species B. dorsalis
is
controlled)
Terrestrial
invertebrate
Polistes dominula
(European Paper
Wasp)
Under consideration
1b
Containment
No longer subject to control due to
large extent of invasive population
in urban areas of the Western Cape
Terrestrial
invertebrate
Vespula germanica
(German Wasp)
Under consideration
1b
Containment
Subject to control in local areas;
eradication may be feasible in
future
(continued)
22 Alien and Invasive Animal Control Projects
633