Alien Freshwater Fauna in South Africa

Weyl, Olaf L. F.; Ellender, Bruce R.; Wasserman, Ryan J.; Truter, Marliese; Dalu, Tatenda; Zengeya, Tsungai A.; Smit, Nico J.

doi:10.1007/978-3-030-32394-3_6

Cited by 42 publications

(58 citation statements)

References 67 publications

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“…The status of freshwater invasions are discussed in Chap. 6 (Weyl et al 2020). Given this diversity, it is unsurprising that large areas of the planet have climatic and environmental analogues to South Africa ( Fig.…”

Section: A Rich and Varied Biodiversitymentioning

confidence: 99%

“…Ogden et al 2019). The remaining chapters focus on specific areas that are invaded-freshwater ecosystems (Weyl et al 2020), coastal marine ecosystems (Robinson et al 2020), offshore sub-Antarctic islands (Greve et al 2020), and urban settings (Potgieter et al 2020). Most invasive alien species in South Africa are plants (Table 1.1), and these are consequently best understood.…”

Section: Scope and Arrangement Of This Bookmentioning

confidence: 99%

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Biological Invasions in South Africa: An Overview

Wilgen

Measey

Richardson

et al. 2020

Biological Invasions in South Africa

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South Africa has much to offer as a location for the study of biological invasions. It is an ecologically diverse country comprised of nine distinct terrestrial biomes, four recognised marine ecoregions, and two sub-Antarctic Islands. The country has a rich and chequered socio-political history, and a similarly varied history of species introductions. There has been a long tradition of large-scale conservation in the country, and efforts to manage and regulate invasions began in the nineteenth century, with some notable successes, but many setbacks. With the advent of democracy in the early 1990s, South Africa established large alien species control programmes to meet the dual demands of poverty alleviation and conservation, and has since pioneered regulatory approaches to address invasions. In terms of research, South Africa has played an important role in the development of invasion science globally. It continues to have one of the most active communities anywhere in the world, with strengths in theoretical and applied invasion science, and world-leading expertise in specific sub-disciplines (e.g. the classical biological control of invasive plants). In this introductory chapter to the book "Biological Invasions in South Africa", we highlight key events that have affected biological invasions, their management, and the research conducted over the past two centuries. In so doing, we build on earlier reviews-from a national situational review of the state of knowledge in

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Section: A Rich and Varied Biodiversitymentioning

confidence: 99%

Section: Scope and Arrangement Of This Bookmentioning

confidence: 99%

Biological Invasions in South Africa: An Overview

Wilgen

Measey

Richardson

et al. 2020

Biological Invasions in South Africa

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101

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“…Predicting the impacts of invasive crayfish species on native biota via consumptive and non-consumptive effects by way of comparing invasion histories can thus produce unequivocal conclusions due to geographical context. Southern Africa is suffering from an over-invasion scenario by functionally similar crayfish species which have been introduced primarily through aquaculture ventures and the pet trade (Lodge et al, 2012;Russell et al, 2014;Nunes et al, 2017a,b;Weyl et al, 2020). Cherax quadricarinatus, the Australian redclaw crayfish and P. clarkii both have established invasive populations in South Africa (Nunes et al, 2017a,b).…”

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confidence: 99%

In a Pinch: Mechanisms Behind Potential Biotic Resistance Toward Two Invasive Crayfish by Native African Freshwater Crabs

et al. 2020

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“…Human mediated introductions are more common and deliberate when introduced for breeding, ornamental and recreational purposes (angling) or as a food source (aquaculture). Meanwhile, accidental Conserving Freshwater Biodiversity in an African Subtropical Wetland: South Africa's Lower… DOI: http://dx.doi.org /10.5772/intechopen.93752 introductions arise with escapes from captivity (aquaculture), uncontrolled releases of angling and ornamental species, inter-basin water transfer schemes, underlying contaminants or as stowaways on vessels and aquaria or farmed species [89][90][91].…”

Section: Biological and Physical Stressors Of Aquatic Organisms From mentioning

confidence: 99%

Conserving Freshwater Biodiversity in an African Subtropical Wetland: South Africa’s Lower Phongolo River and Floodplain

Acosta¹,

Netherlands²,

Retief³

et al. 2021

Managing Wildlife in a Changing World

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Freshwater biodiversity is under constant threat from a range of anthropogenic stressors. Using South Africa's Phongolo River and floodplain (PRF) as a study case, the aim of this chapter is to provide an overview of the conservation and management of freshwater biodiversity in a highly diverse subtropical ecosystem. The PRF is the largest floodplain system in South Africa which is severely threatened by irregularly controlled flood releases from a large upstream dam, prolonged drought, deteriorating water quality, organic pollutants and the increasing dependence of the local communities. Based on a decade of survey of the PRF conducted from 2010 to 2020, this chapter highlights the current diversity of aquatic organisms (invertebrates, fishes, frogs and their parasitic fauna), followed by an overview of their biological and physical stressors. The current challenges in the management of the aquatic biodiversity of this region and a way forward to conservation strategies are also addressed in this chapter.

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Alien Freshwater Fauna in South Africa

Abstract: Seventy-seven alien freshwater species are currently naturalised in South Africa. This list includes 7 protozoan, 1 cnidarian, 2 cestode, 13 monogenean,

Cited by 42 publications

References 67 publications

Biological Invasions in South Africa: An Overview

Biological Invasions in South Africa: An Overview

In a Pinch: Mechanisms Behind Potential Biotic Resistance Toward Two Invasive Crayfish by Native African Freshwater Crabs

Conserving Freshwater Biodiversity in an African Subtropical Wetland: South Africa’s Lower Phongolo River and Floodplain

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