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Browsing by Author "Cumming, Graeme S"

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Assessing the broad-scale impact of agriculturally transformed and protected area landscapes on avian taxonomic and functional richness

Author: Child, Matthew F ; Cumming, Graeme S ; Amano, Tatsuya Date: 2009 Anthropogenic modification of natural habitat is resulting in a widespread loss of biodiversity. One of the primary responses of human societies to biodiversity loss has been the creation of protected areas. Two of the most important questions ... Read more
Environmental influences on moult and movement strategies in southern African waterfowl

Author: Ndlovu, Mduduzi Date: 2012 Waterfowl annual life history events in north-temperate regions are driven primarily by predictable seasonal variations in temperature. In contrast, the spatio-temporal availability of adequate resources to waterfowl in the semi-arid regions ... Read more
Host specificity and co-speciation in avian haemosporidia in the Western Cape, South Africa

Author: Okanga, Sharon ; Cumming, Graeme S ; Hockey, Philip A R ; Nupen, Lisa ; Peters, Jeffrey L Date: 2014 Host and pathogen ecology are often closely linked, with evolutionary processes often leading to the development of host specificity traits in some pathogens. Host specificity may range from ‘generalist’, where pathogens infect any available ... Read more c b
Human networks of tetrapod translocations in the Western Cape, South Africa: trends and potential impacts on biodiversity

Author: Goss, Jeremy R Date: 2012 Global trends show an increase in wildlife trade associated with the process of globalisation and increased international trade. In addition, biodiversity managers are increasingly turning to species translocations to achieve conservation ... Read more
The influence of location on the structure and functioning of private land conservation networks in the Western Cape province of South Africa

Author: Baum, Julia Date: 2016 Protected areas are an important tool for biodiversity conservation. Statutory protected areas are, however, perceived to currently be insufficient in extent and functioning for achieving conservation goals. Conservation action on privately ... Read more
Investigating avian influenza infection hotspots in old-world shorebirds

Author: Gaidet, Nicolas ; Mamy, Ahmed B Ould El ; Cappelle, Julien ; Caron, Alexandre ; Cumming, Graeme S ; Grosbois, Vladimir ; Gil, Patricia ; Hammoumi, Saliha ; de Almeida, Renata Servan ; Fereidouni, Sasan R Date: 2012 Heterogeneity in the transmission rates of pathogens across hosts or environments may produce disease hotspots, which are defined as specific sites, times or species associations in which the infection rate is consistently elevated. Hotspots ... Read more c b
Landscape heterogeneity by termitaria and its effect on ant community composition in the miombo woodlands of Chizarira Naitonal Park, Zimbabwe

Author: Skidmore, Allison Mae Date: 2010 Read more
Large vegetated termitaria and fire impacts on reptilitan community assemblage in a miombo woodland system heavily impacted by elephants

Author: Heermans, Ben Cooper Date: 2010 Read more
Linking avian communities and avian influenza ecology in southern Africa using epidemiological functional groups

Author: Caron, Alexandre ; de Garine-Wichatitsky, Michel ; Ndlovu, Mduduzi ; Cumming, Graeme S Date: 26 Oct 2012 The ecology of pathogens, and particularly their emergence in multi-host systems, is complex. New approaches are needed to reduce superficial complexities to a level that still allows scientists to analyse underlying and more fundamental ... Read more c b
Movement patterns of African elephants (Loxodont africana, Blumenbach) in a seasonally variable ecosystem in south-eastern Chad

Author: Labuschagne, Zanne Claire Date: 2014 African elephant (Loxodonta africana) range and numbers have declined over the past century as a result of increasing human populations, agricultural development, and illegal hunting for ivory. Understanding the dynamics of wide-ranging animal ... Read more
A multi-scale study on the movement ecology of Afrotropical waterbirds

Author: Henry, Dominic A W Date: 2016 Understanding the processes and mechanisms governing animal movement is a fundamental goal in ecology. Processes driving movement can occur across multiple spatiotemporal scales and have important consequences for the structure and dynamics ... Read more
Multi-scale, social-ecological influences on private land conservation in South Africa

Author: Clements, Hayley S Date: 2016 In understanding the behaviour of social-ecological systems, much focus has been placed on the role of institutions that govern how natural resources should be managed, and the biophysical processes affected by this management. Somewhat less ... Read more
The role of waterbirds in the dispersal of aquatic organisms in southern Africa

Author: Reynolds, Chevonne Date: 2016 Dispersal is a fundamental process with far-reaching ecological and evolutionary consequences. Not all organisms are capable of dispersing on their own and instead produce propagules that must be transported to new habitat by a vector. Propagule ... Read more
Tracking socioeconomic vulnerability using network analysis: insights from an avian influenza outbreak in an ostrich production network

Author: Moore, Christine ; Cumming, Graeme S ; Slingsby, Jasper ; Grewar, John Date: 2014 BACKGROUND: The focus of management in many complex systems is shifting towards facilitation, adaptation, building resilience, and reducing vulnerability. Resilience management requires the development and application of general heuristics ... Read more c b
Understanding Highly Pathogenic Avian Influenza outbreaks in Western Cape Ostrich industry: did network dynamics enhance vulnerability? Christine Moore.

Author: Moore, Christine Date: 2012 Disease outbreaks in both domestic and wild systems in recent years indicate the increasing potential for disease spill-over of generalist pathogens between domestic and wild species. Events of this nature are of considerable threat to rare ... Read more
Understanding pathogen transmission dynamics in waterbird communities: At what scale should interactions be studied?

Author: MacGregor, Lindy H ; Cumming, Graeme S ; Hockey, Philip A Date: 2011 Pathogen transmission in animal populations is contingent on interactions between and within species. Often standard ornithological data (e.g. total counts at a wetland) are the only data available for assessing the risks of avian pathogen ... Read more c b
Understanding pattern-process relationships in a heterogeneous landscape effects of large termitaria on diversity and disturbance regimes in Miombo woodlands of Northern Zimbabwe

Author: Joseph, Grant Stuart Date: 2012 Spatial heterogeneity has been shown to influence ecosystem processes and important ecosystem properties like resilience and biodiversity, allowing species with specific habitat needs or weaker competitive abilities to persist in disturbed ... Read more
Using real-time forest loss alerts and global deforestation maps to assess the effectiveness of Africa's tropical protected areas

Author: Bowker, Jenna Date: 2015 Tropical rainforests harbor a significant portion of the world's remaining biodiversity. Having undergone rapid changes in forest cover over the last two decades, a large amount of irreplaceable biodiversity has been lost. The establishment ... Read more
Using stable isotopes to trace the movements of ducks in southern Africa

Author: Mutumi, Gregory Lilgee Date: 2010 Despite the importance of movement ecology studies, the field faces a prevailing challenge of methodological limitations in tracking individual organisms. This research investigated the utility of the stable isotope technique to trace movements ... Read more
Weaving through the matrix: investigating the influence of urban land use on weaver bird movements into and out of Cape Town wetlands

Author: Calder, Jordan-Laine Date: 2014 Urbanization, a fast growing and destructive human land use, causes local extinctions, biotic homogenization and fragmentation of natural habitats. Understanding how the nature of the urban matrix affects the species residing within a city’s ... Read more

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