scispace - formally typeset
J

John Duncan Grewar

Researcher at University of Pretoria

Publications -  33
Citations -  385

John Duncan Grewar is an academic researcher from University of Pretoria. The author has contributed to research in topics: Outbreak & African horse sickness. The author has an hindex of 10, co-authored 28 publications receiving 285 citations. Previous affiliations of John Duncan Grewar include University of the Witwatersrand & University of the Western Cape.

Papers
More filters
Journal ArticleDOI

Pathogens, disease, and the social-ecological resilience of protected areas

TL;DR: In this article, the authors argue that wildlife disease is a social-ecological problem that must be approached from an interdisciplinary perspective, and has the potential to lead to changes in the identity of protected areas, possibly transforming them; and interacts with conservation both directly (via impacts on wild animals, livestock, and people) and indirectly (via the public, conservation management, and veterinary responses).
Journal ArticleDOI

Molecular Analysis of the 2011 HPAI H5N2 Outbreak in Ostriches, South Africa

TL;DR: The branching order of outbreak strains indicated a lack of reassortment between outbreak strains that implied a single outbreak source and a wild duck origin for the progenitor outbreak strain, and the 2011 outbreak strains had no genetic relationships to the previous 2004 and 2006 HPAI H5N2 outbreak viruses.
Journal ArticleDOI

Quantifying network resilience: comparison before and after a major perturbation shows strengths and limitations of network metrics

TL;DR: A network analysis of nine years of ostrich movement data is used to explore the social–ecological resilience of the Western Cape ostrich industry, which nearly collapsed following an outbreak of highly pathogenic avian influenza in 2011 and has gradually rebuilt.
Journal ArticleDOI

A social–ecological approach to landscape epidemiology: geographic variation and avian influenza

TL;DR: It is argued that landscape epidemiology must move beyond simply studying the influence of landscape configuration and composition on epidemiological processes and towards a more comparative, systems approach that better incorporates social–ecological complexity.