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Browsing Research Articles (University of Pretoria) by UP Author "Zengeya, Tsungai Alfred"
Now showing items 1-15 of 15
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Booth, Anthony J.; Zengeya, Tsungai Alfred; Chimimba, Christian Timothy (MDPI Publishing, 2015-07-14)This study developed niche models for the native ranges of Oreochromis andersonii, O. mortimeri, and O. mossambicus, and assessed how much of their range is climatically suitable for the establishment of O. niloticus, ...
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Zengeya, Tsungai Alfred; Robertson, Mark P.; Booth, Anthony J.; Chimimba, Christian Timothy (Springer, 2013)This study applied ecological niche models to determine the potential invasive range of Nile tilapia, Oreochromis niloticus, with a particular focus on river systems in southern Africa where it is now established and ...
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Maimela, Lerato Thabitha; Chimimba, Christian Timothy; Zengeya, Tsungai Alfred (NISC (Pty) Ltd and Informa UK Limited (trading as Taylor & Francis Group), 2022)This study investigated the effects of rainbow trout (Oncorhynchus mykiss) invasion on native fish communities in the upper Blyde River catchment. A fish survey was undertaken between September 2017 and October 2018 from ...
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Khosa, Dumisani; Marr, Sean M.; Wasserman, Ryan J.; Zengeya, Tsungai Alfred; Weyl, Olaf L.F. (Springer, 2019-05)Black Bass, a collective name for members of the centrarchid genus Micropterus, are native to North America, but have been introduced globally to enhance recreational angling. This study assessed the distribution of ...
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Jackson, Michelle C.; Fourie, Hermina E.; Dalu, Tatenda; Woodford, Darragh J.; Wasserman, Ryan J.; Zengeya, Tsungai Alfred; Ellender, Bruce R.; Kimberg, Peter K.; Jordaan, Martine S.; Chimimba, Christian Timothy; Weyl, Olaf L.F. (Wiley, 2020-08)Land use intensification and climate change are two prominent drivers of variation in biological communities. However, we know very little about how these two potential environmental stressors interact. Here we use a stable ...
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Wilson, John R.U.; Bacher, Sven; Daehler, Curtis C.; Groom, Quentin J.; Kumschick, Sabrina; Lockwood, Julie L.; Robinson, Tamara B.; Zengeya, Tsungai Alfred; Richardson, David M. (Pensoft Publishers, 2020-10-15)Our understanding and management of biological invasions relies on our ability to classify and conceptualise the phenomenon. This need has stimulated the development of a plethora of frameworks, ranging in nature from ...
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Julius, Rolanda Sunayé; Zengeya, Tsungai Alfred; Schwan, Ernst Volker; Chimimba, Christian Timothy (Frontiers Media, 2021-06)Poor socio-economic and unsanitary conditions are conducive to commensal rodent infestations, and these conditions are widespread in South Africa. Cestode species of zoonotic interest are highly prevalent in commensal ...
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Wilson, John R.U.; Faulkner, Katelyn T.; Rahlao, Sebataolo J.; Richardson, David M.; Zengeya, Tsungai Alfred; Van Wilgen, Brian W. (Wiley, 2018-11)1. A major challenge for the management of biological invasions is to ensure that data and information from basic inventories and ecological research are used alongside data from the monitoring and evaluation of interventions ...
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Wilson, John R.U.; Datta, Arunava; Hirsch, Heidi; Keet, Jan-Hendrik; Mbobo, Tumeka; Nkuna, Khensani V.; Nsikani, Mlungele M.; Pysek, Petr; Richardson, David M.; Zengeya, Tsungai Alfred; Kumschick, Sabrina (Pensoft Publishers, 2020-10-15)The need to understand and manage biological invasions has driven the development of frameworks to circumscribe, classify, and elucidate aspects of the phenomenon. But how influential have these frameworks really been? ...
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Maimela, Lerato T.; Chimimba, Christian Timothy; Zengeya, Tsungai Alfred (Frontiers Media, 2022-09-27)The introduction of alien predatory fish such as rainbow trout (Oncorhynchus mykiss) can have a significant effect on indigenous fish communities such as altering the structure and dynamics of food webs. Quantifying the ...
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Lübcker, N.; Zengeya, Tsungai Alfred; Dabrowski, Jacqueline; Robertson, Mark P. (2014)Predicting the potential geographical distribution and spread of non-native species is of major concern to ecologists. Silver carp Hypophthalmichthys molitrix, ranked as one of the world’s 100 worst invasive species, ...
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Zengeya, Tsungai Alfred; Robertson, Mark P.; Booth, Anthony J.; Chimimba, Christian Timothy (Wiley-Blackwell, 2013-01)1. This study outlines the development of a qualitative risk assessment method and its application as a screening tool for determining the risk of establishment and spread of the invasive Nile tilapia, Oreochromis niloticus ...
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Lubcker, Nico; Dabrowski, Jacqueline; Zengeya, Tsungai Alfred; Oberholster, Paul Johan; Hall, Grant; Woodborne, Stephan M.; Robertson, Mark P. (Taylor and Francis, 2016-12)The alien invasive silver carp Hypophthalmichthys molitrix established a self-sustaining feral population in an oligotrophic impoundment, Flag Boshielo Dam, in South Africa. The ability of this population to persist in a ...
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Zengeya, Tsungai Alfred; Booth, Anthony J.; Bastos, Armanda D.S.; Chimimba, Christian Timothy (Springer, 2011-12)The stable isotope ratio and seasonal changes in diet of two indigenous (Oreochromis mossambicus, Tilapia rendalli) and one exotic (Oreochromis niloticus) tilapiine cichlids in the subtropical Limpopo River, South Africa ...
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Zengeya, Tsungai A.; Lombard, Reuhl Jan-Hendrik; Nelwamondo, Vhutali Ernest; Nunes, Luisa; Measey, John; Weyl, Olaf Lawrence (Wiley, 2022-11)Trophic niche analysis can be used to assess ecological opportunities available to alien species in areas of introduction that might aid their establishment, define their functional role and inform on their potential impacts. ...
Now showing items 1-15 of 15