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Abstract

Background: Invasive alien species (IAS) cause significant economic losses in all parts of the world. Although IAS are widespread in Africa and cause serious negative impacts on livelihoods as a result of yield losses and increased labour costs associated with IAS management, few data on the...

Author(s)
Eschen, R.; Beale, T.; Bonnin, J. M.; Constantine, K. L.; Duah, S.; Finch, E. A.; Makale, F.; Nunda, W.; Ogunmodede, A.; Pratt, C. F.; Thompson, E.; Williams, F.; Witt, A.; Taylor, B.
Publisher
BioMed Central Ltd, London, UK
Citation
CABI Agriculture and Bioscience, 2021, 2, 18, pp (20 May 2021)
Abstract

Invasive alien plants have a significant impact on biodiversity, crop and pasture production, human and animal health, water resources, and economic development. As most low- and middle-income countries do not have the resources to actively manage invasive plants, many have intentionally introduced ...

Author(s)
Day, M.; Witt, A.; Winston, R.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Current Opinion in Insect Science, 2020, 38, pp 92-98
Abstract

Opuntia stricta (Haw.) Haw (Cactaceae) is invasive in Laikipia County, Kenya, impacting negatively on biodiversity and livelihoods. To control this invasive plant the biocontrol agent Dactylopius opuntiae (Cockerell) (Hemiptera; Dactylopiidae) 'stricta' biotype was released in 2014. A preliminary...

Author(s)
Witt, A. B. R.; Nunda, W.; Makale, F.; Reynolds, K.
Publisher
Springer, Amsterdam, Netherlands
Citation
BioControl, 2020, 65, 4, pp 515-523
Abstract

UNESCO World Heritage Sites (WHS) are areas of outstanding universal value and conservation importance. They are, however, threatened by a variety of global change drivers, including biological invasions. We assessed the current status of biological invasions and their management in 241 natural and ...

Author(s)
Shackleton, R. T.; Bertzky, B.; Wood, L. E.; Bunbury, N.; Jäger, H.; Merm, R. van; Sevilla, C.; Smith, K.; Wilson, J. R. U.; Witt, A. B. R.; Richardson, D. M.
Publisher
Springer, Amsterdam, Netherlands
Citation
Biodiversity and Conservation, 2020, 39, 11/12, pp 3327-3347
Abstract

Author(s)
Witt, A.; Hula, V.; Suleiman, A. S.; Damme, K. van
Publisher
Accademia Nazionale dei Lincei, Rome, Italy
Citation
Rendiconti Lincei. Scienze Fisiche e Naturali, 2020, 31, pp 645-654
Abstract

This is the first assessment of naturalised, invasive and potentially invasive alien plant species present in Laikipia County, Kenya, which hosts the highest populations of endangered large mammals in the country. We undertook broad-scale roadside surveys in Laikipia, recording all naturalised and...

Author(s)
Witt, A. B. R.; Nunda, W.; Beale, T.; Kriticos, D. J.
Publisher
South African National Parks, Pretoria, South Africa
Citation
Koedoe, 2020, 62, a1605,
Abstract

The semiaquatic weed Mimosa pigra has negative impacts on biodiversity, fishing, crop and livestock production, and tourism in most places where it has been introduced, established and proliferated. Many of the ecological impacts are well known, but its impacts on rural livelihoods are less well...

Author(s)
Witt, A. B. R.; Floyd, K. S.; Nunda, W.; Beale, T.; Shanungu, G.; Kriticos, D. J.
Publisher
Wiley, Melbourne, Australia
Citation
Austral Ecology, 2020, 45, 6, pp 788-799
Abstract

Significant progress has been made in providing guidelines and recommendations for assessing the ecological niche, stage of invasion, and probability of invasive alien plant species (IAPS) potential distribution in space and time. We followed these recommendations by developing and comparing...

Author(s)
Eckert, S.; Hamad, A.; Kilawe, C. J.; Linders, T. E. W.; Ng, W. T.; Mbaabu, P. R.; Hailu Shiferaw; Witt, A.; Schaffner, U.
Publisher
Wiley, Oxford, UK
Citation
Ecosphere, 2020, 11, 2,
Abstract

The family Cactaceae Juss. contains some of the most widespread and damaging invasive alien plant species in the world, with Australia (39 species), South Africa (35) and Spain (24) being the main hotspots of invasion. The Global Cactus Working Group (IOBC GCWG) was launched in 2015 to improve...

Author(s)
Novoa, A.; Brundu, G.; Day, M. D.; Deltoro, V.; Essl, F.; Foxcroft, L. C.; Fried, G.; Kaplan, H.; Kumschick, S.; Lloyd, S.; Marchante, E.; Marchante, H.; Paterson, I. D.; Pyšek, P.; Richardson, D. M.; Witt, A.; Zimmermann, H. G.; Wilson, J. R. U.
Publisher
MDPI AG, Basel, Switzerland
Citation
Plants, 2019, 8, 10, pp 421
Abstract

Background: Many alien plant species, such as Tithonia diversifolia, T. rotundifolia and T. tubaeformis, have been introduced to areas outside of their natural distribution range to provide benefits, but have subsequently become invasive, threatening biodiversity and agricultural productivity....

Author(s)
Witt, A. B. R.; Shackleton, R. T.; Beale, T.; Nunda, W.; Wilgen, B. W. van
Publisher
South African National Biodiversity Institute, Pretoria, South Africa
Citation
Bothalia - African Biodiversity & Conservation, 2019, 49, 1,

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