Browsing RESEARCH: Measey, J by Author "de Villiers, F.A."
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Competition and feeding ecology in two sympatric Xenopus species (Anura: Pipidae)
Vogt, S.; de Villiers, F.A.; Ihlow, F.; Rodder, D.; Measey, J. (Creative Commons CC-BY 4.0, 2017)The widespread African clawed frog (Xenopus laevis) occurs in sympatry with the IUCN Endangered Cape platanna (Xenopus gilli) throughout its entire range in the south-western Cape, South Africa. In order to investigate ... -
Controlling the African clawed frog Xenopus laevis to conserve the Cape platanna Xenopus gilli in South Africa
de Villiers, F.A.; de Kock, M.; Measey, G.J. (2016)A five year control programme of the African clawed frog Xenopus laevis resulted in improved population demographics in the Cape platanna Xenopus gilli in comparison to a population without removal. -
Frog eat frog: exploring variables influencing anurophagy
Measey, G.J.; Vimercati, G.; de Villiers, F.A.; Mokhatla, M.M.; Davies, S.J.; Edwards, S.; Altwegg, R. (CC-BY 4.0, 2015)Background. Frogs are generalist predators of a wide range of typically small prey items. But descriptions of dietary items regularly include other anurans, such that frogs are considered to be among the most important of ... -
A global assessment of alien amphibian impacts in a formal framework
Measey, G.J.; Vimercati, G.; de Villiers, F.A.; Mokhatla, M.; Davies, S.J.; Thorp, C.J.; Rebelo, A.D.; Kumschick, S. (John Wiley & Sons Ltd, 2016)Aims The environmental and socio-economic impacts of alien species need to be quantified in a way that makes impacts comparable. This allows managers to prioritize their control or removal based on impact scores that can ... -
How repeatable is the Environmental Impact Classification of Alien Taxa (EICAT)? Comparing independent global impact assessments of amphibians
Kumschick, S.; Measey, G.J.; Vimercati, G.; de Villiers, F.A.; Mokhatla, M.M.; Davies, S.J.; Thorp, C.J.; Rebelo, A.D.; Blackburn, T.M.; Kraus, F. (John Wiley & Sons Ltd., 2017)The magnitude of impacts some alien species cause to native environments makes them targets for regulation and management. However, which species to target is not always clear, and comparisons of a wide variety of impacts ... -
Impact assessment with different scoring tools; How well do alien amphibian assessments match?
Kumschick, S.; Vimercati, G.; de Villiers, F.A.; Mokhatla, M.M.; Davies, S.J.; Thorp, C.J.; Rebelo, A.D.; Measey, G.J. (Pensoft Publishers, 2017)Classification of alien species’ impacts can aid policy making through evidence based listing and management recommendations. We highlight differences and a number of potential difficulties with two scoring tools, the ...