An Evaluation of the Impacts of Alien Species on Biodiversity in South Africa Using Different Assessment Methods

Zengeya, Tsungai A.; Kumschick, Sabrina; Weyl, Olaf L. F.; Wilgen, B.W. van

doi:10.1007/978-3-030-32394-3_17

Cited by 37 publications

(52 citation statements)

References 106 publications

(135 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Part IV (Chaps. 15-17) addresses why invasive species are important in the South African context, dealing with water resources (Le Maitre et al 2020), rangeland productivity (O'Connor and van Wilgen 2020), and biodiversity (Zengeya et al 2020). As in the rest of the world, the impacts of invasive species have not been adequately documented, but enough research has been done to examine particular aspects.…”

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

Self Cite

101

View full text Add to dashboard Cite

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

show abstract

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

Self Cite

101

View full text Add to dashboard Cite

show abstract

“…This has been an important guiding principle; it has meant that CÁIÁB members have been able to study the conflicts of interest that are a key part of invasion science (e.g. van Wilgen and Richardson 2012;Woodford et al 2016;Zengeya et al 2017Zengeya et al , 2020Novoa et al 2018;Davies et al 2020), and through their understanding lead the way toward resolutions, without "taking a stand" on any particular option. The term "invasion science" (the core business of the CÁIÁB) describes the full spectrum of fields of enquiry pertaining to alien species and biological invasions.…”

Section: Guiding Principlesmentioning

confidence: 99%

South Africa’s Centre for Invasion Biology: An Experiment in Invasion Science for Society

Richardson

Abrahams

Boshoff

et al. 2020

Biological Invasions in South Africa

Self Cite

View full text Add to dashboard Cite

This chapter describes the establishment of a Centre of Excellence for Invasion Biology in South Africa, and reviews how its structure and functioning has evolved over time. The Centre has been guided in its activities by a set of principles that included conducting research on biological invasions that is world-class but relevant to South Africa, embracing interdisciplinarity, and bridging the gap between the natural and social sciences. The performance of the Centre has been assessed using five broad key performance areas (Research; Education and training; Networking; Information brokerage; and Service provision), and we use this as a framework for describing the Centre's achievements over the 15 years since its establishment in 2004. The Centre has consistently exceeded its annual target of between 60 and 80 peer-reviewed publications per year. Between the inception of the Centre in 2004 and the end of 2018, 1745 peer-reviewed papers with Centreaffiliated authors were published in journals listed on the Web of Science, and many important contributions to the field globally have been made. Up to the end of 2018, 129 Master's degrees and 64 PhDs have been awarded, and 67 post-doctoral associates have been supported. Many of the Centre's graduates are now employed in the environmental management sector, in South Africa and abroad. The Centre

show abstract

“…Nile tilapia, Oreochromis niloticus (Linnaeus, 1758), is native to East, Central and West Africa, as well as to the Middle East, particularly in the Jordan valley [ 62 , 68 ]. In East Africa, the species is found in water bodies of both the Eastern and Western Rift Valley [ 2 , 52 ].…”

Section: Introductionmentioning

confidence: 99%

“…In East Africa, the species is found in water bodies of both the Eastern and Western Rift Valley [ 2 , 52 ]. Due to its high importance for aquaculture and capture fisheries [ 43 ], Nile tilapia has been widely introduced outside its natural distribution range [ 45 ] and is cultured globally in sub-tropical and tropical regions [ 67 , 68 ].…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity of Nile tilapia (Oreochromis niloticus) populations in Ethiopia: insights from nuclear DNA microsatellites and implications for conservation

Tesfaye¹,

Curto

Meulenbroek

et al. 2021

BMC Ecol Evo

View full text Add to dashboard Cite

Background Nile tilapia, Oreochromis niloticus (Linnaeus, 1758) is among the economically most important freshwater fish species in East Africa, and a major source of protein for local consumption. Human induced translocations of non-native stocks for aquaculture and fisheries have been found as a potential threat to the genetic diversity and integrity of local populations. In the present study, we investigate the genetic structure of O. niloticus from 16 waterbodies across Ethiopia using 37 microsatellite loci with SSR-GBAS techniques. Results The samples are structured into three main clusters shaped either by biogeographic factors or stocking activities. High FST values (Global FST = 0.438) between populations indicate a high level of genetic differentiation and may suggest long term isolation even within the same drainage systems. Natural populations of the Omo-Turkana system and the lakes in the Southern Main Ethiopian Rift showed the highest genetic variability while low variability was found in stocked populations of lakes Hora, Hashenge and Hayq. Conclusions The results presented herein, may provide an essential basis for the management and conservation of the unique genetic resources in northern East Africa, and advance our understanding of biodiversity, phylogeny, evolution and development towards phylogenetically more accurate taxonomic classifications.

show abstract

An Evaluation of the Impacts of Alien Species on Biodiversity in South Africa Using Different Assessment Methods

Cited by 37 publications

References 106 publications

Biological Invasions in South Africa: An Overview

Biological Invasions in South Africa: An Overview

South Africa’s Centre for Invasion Biology: An Experiment in Invasion Science for Society

Genetic diversity of Nile tilapia (Oreochromis niloticus) populations in Ethiopia: insights from nuclear DNA microsatellites and implications for conservation

Contact Info

Product

Resources

About