Prioritising potential incursions for contingency planning: pathways, species, and sites in Durban (eThekwini), South Africa as an example
被引:7
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作者:
Padayachee, Ashlyn L.
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机构:
Univ KwaZulu Natal, Discipline Geog, Westville Campus, ZA-4000 Durban, South Africa
Kirstenbosch Res Ctr, South African Natl Biodivers Inst, ZA-7735 Claremont, South AfricaUniv KwaZulu Natal, Discipline Geog, Westville Campus, ZA-4000 Durban, South Africa
Padayachee, Ashlyn L.
[1
,2
]
Proches, Serban
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机构:
Univ KwaZulu Natal, Discipline Geog, Westville Campus, ZA-4000 Durban, South AfricaUniv KwaZulu Natal, Discipline Geog, Westville Campus, ZA-4000 Durban, South Africa
Proches, Serban
[1
]
Wilson, John R. U.
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机构:
Kirstenbosch Res Ctr, South African Natl Biodivers Inst, ZA-7735 Claremont, South Africa
Stellenbosch Univ, Dept Bot & Zool, Ctr Invas Biol, Private Bag X1, ZA-7602 Matieland, South AfricaUniv KwaZulu Natal, Discipline Geog, Westville Campus, ZA-4000 Durban, South Africa
Wilson, John R. U.
[2
,3
]
机构:
[1] Univ KwaZulu Natal, Discipline Geog, Westville Campus, ZA-4000 Durban, South Africa
[2] Kirstenbosch Res Ctr, South African Natl Biodivers Inst, ZA-7735 Claremont, South Africa
[3] Stellenbosch Univ, Dept Bot & Zool, Ctr Invas Biol, Private Bag X1, ZA-7602 Matieland, South Africa
biological invasions;
early detection;
incursion response planning;
prioritisation;
alligator weed;
southern sandhur;
American bullfrog;
red imported fire ant;
IMPORTED FIRE ANT;
WEED ALTERNANTHERA-PHILOXEROIDES;
LITHOBATES-CATESBEIANUS SHAW;
INVASIVE ALIEN PLANTS;
ALLIGATOR WEED;
GEOGRAPHICAL-DISTRIBUTION;
BIOLOGICAL INVASIONS;
ECOSYSTEM SERVICES;
URBAN SYSTEMS;
IMPACTS;
D O I:
10.3897/neobiota.47.31959
中图分类号:
X176 [生物多样性保护];
学科分类号:
090705 ;
摘要:
Increased trade and travel have resulted in an increasing rate of introduction of biological organisms to new regions. Urban environments, such as cities, are hubs for human activities facilitating the introduction of alien species. Additionally, cities are susceptible to invading organisms as a result of the highly altered and transformed nature of these environments. Despite best efforts at prevention, new incursions of alien species will occur; therefore, prioritising incursion response efforts is essential. This study explores these ideas to identify priorities for strategic prevention planning in a South African city, Durban (eThek-wini), by combining data from alien species watch lists, environmental criteria, and the pathways which facilitate the introduction of alien species in the city. Three species (with known adverse impacts elsewhere in the world) were identified as highly likely to be introduced and established in Durban (Alternanthera philaveroides, Lithobates catesbeianus and Salennpsis invicta). These species are most likely to enter at either the Durban Harbour; pet and aquarium stores; or plant nurseries and garden centres - therefore active surveillance should target these sites as well as adjacent major river systems and infrastructure. We suggest that the integrated approach (species, pathways, and sites) demonstrated in this study will help prioritise resources to detect the most likely and damaging future incursions of alien species.