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Browsing by Author "Robertson, MP"

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Predicting the potential distribution of invasive silver carp Hypophthalmichthys molitrix in South Africa

Author: Lübcker, N ; Zengeya, TA ; Dabrowski, James M ; Robertson, MP Date: 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, were introduced into South ... Read more
Proposed prioritization system for the management of invasive alien plants in South Africa

Author: Robertson, MP ; Villet, MH ; Fairbanks, DHK ; Henderson, L ; Higgins, SI ; Hoffmann, JH ; Le Maitre, David C ; Palmer, AR ; Riggs, I ; Shackleton, CM ; Zimmermann, HG Date: Jan 2003 Every country has weed species whose presence conflicts in some way with human management objectives and needs. Resources for research and control are limited, so priority should be given to species that are the biggest problem. The prioritization ... Read more
A qualitative ecological risk assessment of the invasive Nile tilapia, Oreochromis niloticus in a sub-tropical African river system (Limpopo River, South Africa)

Author: Zengeya, TA ; Robertson, MP ; Booth, AJ ; Chimimba, CT Date: Jan 2013 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 (Linnaeus, 1758), ... Read more
Trophic ecology and persistence of invasive silver carp Hypophthalmichthys molitrix in an oligotrophic South African impoundment

Author: Lübcker, N ; Dabrowski, J ; Zengeya, TA ; Oberholster, Paul J ; Hall, G ; Woodborne, S ; Robertson, MP Date: Dec 2016 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 dam with low algal ... Read more

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Browsing by Author "Robertson, MP"

Browsing by Author "Robertson, MP"

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