African Journal of Range and Forage Science, Journal Year: 2022, Volume and Issue: 40(4), P. 359 - 372
Published: Dec. 6, 2022
Language: Английский
Springer eBooks, Journal Year: 2020, Volume and Issue: unknown, P. 3 - 31
Published: Jan. 1, 2020
Language: Английский
Citations
82
Springer eBooks, Journal Year: 2020, Volume and Issue: unknown, P. 489 - 512
Published: Jan. 1, 2020
Language: Английский
Citations
38
Biological Invasions, Journal Year: 2024, Volume and Issue: 27(1)
Published: Nov. 29, 2024
Abstract This paper assesses progress towards the control of biological invasions in 18 protected areas (PAs) covering 677 584 ha Cape Floristic Region (CFR), and whether has been sufficient to achieve Target 6 Kunming-Montreal Global Biodiversity Framework. We used eight indicators for assessing inputs (quality regulatory framework, money spent planning coverage species areas), outputs (species treated), outcomes (effectiveness area treatments) management. The estimated over 13 years (2010–2022) was ZAR 976 million, or 75 million per year. Management plans PAs were assessed as adequate 78.5% area, but only six out 226 regulated invasive had species-specific place. A total 567 alien occurred CFR’s PAs, which (i.e. that be controlled), 126 (55.8%) received some Spending highly skewed, with 60% all funding on trees shrubs genus Acacia . efforts reached 24% land within areas, higher national parks (60%) than provincial nature reserves (9%). effectiveness either permanent, effective partially 29 (20 due control), ineffective 25; remainder, there no management could not evaluated. conclude made respect controlling CFR, insufficient declining remains a significant barrier To increase efficiency, it will necessary secure additional from more diversified sources, make use prescribed fire, regularly monitor
Language: Английский
Citations
4
Springer eBooks, Journal Year: 2020, Volume and Issue: unknown, P. 115 - 151
Published: Jan. 1, 2020
Language: Английский
Citations
28
Insectes Sociaux, Journal Year: 2023, Volume and Issue: 70(3), P. 285 - 294
Published: July 17, 2023
Abstract Social insects are successful and globally significant invaders. Compared to ongoing suppression, eradication is seen as an ideal solution cost effective in the long term. The success of attempts not guaranteed identifying key factors that could influence such management programs would be beneficial. In this study, 239 were compiled analysed identify why fail, with a focus on how eusociality target species impacts success. All else remaining constant, odds 79% lower when targeting social compared non-social insects. Eradication was shown increase comparing more recent earlier ones but found decrease duration attempt went on. occurred islands, those targeted broader host range, also associated increased A review cited reasons for failure highlighted importance employing control treatments, management, monitoring systems, well garnering adequate political support. This study indicates particularly challenging eradicate; it notes considering both logistical biological aspects any eradication, before initiating attempts.
Language: Английский
Citations
10
Springer eBooks, Journal Year: 2020, Volume and Issue: unknown, P. 831 - 853
Published: Jan. 1, 2020
Language: Английский
Citations
20
Springer eBooks, Journal Year: 2020, Volume and Issue: unknown, P. 701 - 729
Published: Jan. 1, 2020
Language: Английский
Citations
19
Springer eBooks, Journal Year: 2020, Volume and Issue: unknown, P. 185 - 205
Published: Jan. 1, 2020
Language: Английский
Citations
18
Insects, Journal Year: 2021, Volume and Issue: 12(8), P. 732 - 732
Published: Aug. 16, 2021
Investigating the distributions of invasive species in marginal habitats can give clues to factors constraining spread. Vespula germanica is most widely distributed all Vespids, which Southern Hemisphere typically have large extensive populations. In contrast, invasion into South Africa has been slow and still confined a small geographic area. Here we analyse distribution recent nest records (n = 405). The distance main rivers, mean annual rainfall, summer normalised difference moisture index (NDMI) values, temperatures (average, minimum, maximum, maximum temperature) was measured for every nest. We find that value ranges these variables are different between recorded nests, general area wasp, absence. Optimised Hot Spot Analysis used quantify spatial structure climatic variables. Generally, related stress set environmental limits V. germanica’s landscape distribution. Due strong preference nesting sites close river courses, higher rainfall conditions, medium medium-high NDMI lower temperatures, it unlikely will be able spread uniformly where currently found Africa.
Language: Английский
Citations
15
Biological Invasions, Journal Year: 2024, Volume and Issue: 26(9), P. 3191 - 3203
Published: June 20, 2024
Abstract Estimates of the cost damage caused by invasive alien speices and money spent addressing biological invasions are needed to guide policy management. Here, we quantify known monetary costs South Africa, using data from InvaCost database, literature searches, stakeholders. The Department Forestry, Fisheries Environment, agencies directly funded them, provided most information on spent, with very little was available other government private sector. There also due impacts invasions. Between 1960 2023, ZAR9.6 billion (adjusted 2022 values) managing in Africa. This is only 4% predicted as being necessary for management, which amounted ZAR231.8 values. uncertainty obtained estimates a paucity both management costs. A few key points emerged our analysis: far exceeds expenditure control; amount control much less than what be needed; almost all has focussed plant species; there large gaps that reduce confidence estimates. Transparent reporting, strategic public–private collaborations, standardised impact metrics, reliable assessments effectiveness enable Africa more effectively account prioritise investments.
Language: Английский
Citations
2