7 Works

Data from: Context-dependent survival, fecundity, and predicted population-level consequences of brucellosis in African buffalo

Erin E. Gorsich, Vanessa O. Ezenwa, Paul C. Cross, Roy G. Bengis & Anna E. Jolles
1. Chronic infections may have negative impacts on wildlife populations, yet their effects are difficult to detect in the absence of long-term population monitoring. Brucella abortus, the bacteria responsible for bovine brucellosis, causes chronic infections and abortions in wild and domestic ungulates, but its impact on population dynamics is not well understood. 2. We report infection patterns and fitness correlates of bovine brucellosis in African buffalo based on (1) 7 years of cross-sectional disease surveys...

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

Christine Moore, Graeme S. Cumming & John Grewar
1. The resilience literature often assumes that social–ecological reorganization will result in either the removal of deficient system elements (components, interactions) or social learning. Major perturbations are expected to lead to either adaptation or, if accompanied by a regime shift, transformation. This has led to a conflation of the concepts of resilience and adaptation, which has in turn made it difficult to quantitatively distinguish between cases in which a system returned to a previous state,...

Data from: Bayesian inference reveals positive but subtle effects of experimental fishery closures on marine predator demographics

Richard B. Sherley, Barbara J. Barham, Peter J. Barham, Kate J. Campbell, Robert J.M. Crawford, Jennifer Grigg, Catharine Horswill, Alistair McInnes, Taryn L. Morris, Lorien Pichegru, Antje Steinfurth, Florian Weller, Henning Winker, Stephen C. Votier & Cat Horswill
Global forage-fish landings are increasing, with potentially grave consequences for marine ecosystems. Predators of forage fish may be influenced by this harvest, but the nature of these effects is contentious. Experimental fishery manipulations offer the best solution to quantify population-level impacts, but are rare. We used Bayesian inference to examine changes in chick survival, body condition and population growth rate of endangered African penguins Spheniscus demersus in response to eight years of alternating time-area closures...

Data from: The population and landscape genetics of the European badger (Meles meles) in Ireland.

Jimena Guerrero, Andrew W. Byrne, John Lavery, Eleanor Breadon, Gavin Kelly, Emily A. Courcier, James O'Keefe, Ursula Fogarty, Denise B. O'Meara, Dennis Ensing, Carl McCormick, Roman Biek, Robin A. Skuce, Adrian R. Allen & James O'Keeffe
The population genetic structure of free-ranging species is expected to reflect landscape-level effects. Quantifying the role of these factors and their relative contribution often has important implications for wildlife management. The population genetics of the European badger (Meles meles) have received considerable attention, not least because the species acts as a potential wildlife reservoir for bovine tuberculosis (bTB) in Britain and Ireland. Herein, we detail the most comprehensive population and landscape genetic study of the...

Data from: Population dynamics of owned, free-roaming dogs: implications for rabies control

Anne Conan, Oluyemisi Akerele, Greg Simpson, Bjorn Reininghaus, Jacques Van Rooyen & Darryn Knobel
Background: Rabies is a serious yet neglected public health threat in resource-limited communities in Africa, where the virus is maintained in populations of owned, free-roaming domestic dogs. Rabies elimination can be achieved through the mass vaccination of dogs, but maintaining the critical threshold of vaccination coverage for herd immunity in these populations is hampered by their rapid turnover. Knowledge of the population dynamics of free-roaming dog populations can inform effective planning and implementation of mass...

Data from: Bottom-up effects of a no-take zone on endangered penguin demographics

Richard B. Sherley, Henning Winker, Res Altwegg, Carl D. Van Der Lingen, Stephen C. Votier & Robert J. M. Crawford
Marine no-take zones can have positive impacts for target species and are increasingly important management tools. However, whether they indirectly benefit higher order predators remains unclear. The endangered African penguin (Spheniscus demersus) depends on commercially exploited forage fish. We examined how chick survival responded to an experimental 3-year fishery closure around Robben Island, South Africa, controlling for variation in prey biomass and fishery catches. Chick survival increased by 18% when the closure was initiated, which...

Screening for simple sequences repeat markers in Hemileia vastatrix

Luis A. Ramirez Camejo, Luis C. Mejía, Amnat Eamvijarn, Jorge Díaz-Valderram, Elena Karlsen-Ayala, Elizabeth Johnson, Sòlene Pruvot-Woehl, Christophe Montagnon & M. Catherine Aime
Hemileia vastatrix is the most important fungal pathogen affecting Coffea arabica and has invaded nearly every coffee-growing region in the world and the causal agent of recurrent disease epidemics. The development of resistant varieties of coffee against H. vastatrix requires fundamental understanding of the biology of the fungus. However, the complete life cycle of H. vastatrix remains unknown and conflicting studies exist as to whether the fungus is capable of sexual reproduction or not. Here...

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Affiliations

  • Department of Agriculture
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  • University of Cape Town
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  • University of Glasgow
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  • University of Exeter
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  • South African National Biodiversity Institute
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  • Department of Agriculture Food and the Marine
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  • Ross University School of Veterinary Medicine
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  • University of Georgia
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