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Colin P.D. Birch
Researcher at Animal and Plant Health Agency
Publications - 40
Citations - 1338
Colin P.D. Birch is an academic researcher from Animal and Plant Health Agency. The author has contributed to research in topics: Mycobacterium bovis & Glechoma hederacea. The author has an hindex of 16, co-authored 37 publications receiving 1171 citations. Previous affiliations of Colin P.D. Birch include University of Sussex & Veterinary Laboratories Agency.
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Rectangular and hexagonal grids used for observation, experiment and simulation in ecology
TL;DR: This work considers modelling and other applications, including the role of nearest neighbourhood in experimental design, the representation of connectivity in maps, and a new method for performing field surveys using hexagonal grids, which was demonstrated on montane heath vegetation.
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Exploitation of Patchily Distributed Soil Resources by the Clonal Herb Glechoma Hederacea
TL;DR: Local delay or advancement of the initiation of root growth, in response to variations in soil characteristics, could have generated the observed concentration of root biomass inside the central circle of the patchy treatment.
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A New Generalized Logistic Sigmoid Growth Equation Compared with the Richards Growth Equation
TL;DR: The new sigmoid equation is more suitable when initial growth is believed to be generally close to exponential, when estimates of maximum relative growth rate are required, or for generic growth simulations.
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Estimating the Hidden Burden of Bovine Tuberculosis in Great Britain
Andrew J. K. Conlan,Trevelyan J. McKinley,Katerina Karolemeas,Ellen Brooks Pollock,Anthony V. Goodchild,Andrew Mitchell,Colin P.D. Birch,Richard S. Clifton-Hadley,James L. N. Wood +8 more
TL;DR: Approximate Bayesian Computation is used to parameterize two within-herd transmission models of bTB and an alternative model, motivated by recent animal challenge studies, where there is no period of epidemiological latency before animals become infectious (SOR), under which cattle-to-cattle transmission rates are non-linearly density dependent.
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Demographic risk factors for classical and atypical scrapie in Great Britain.
Darren M. Green,Victor J. Del Rio Vilas,Colin P.D. Birch,Jethro S. Johnson,Istvan Z. Kiss,Noel D. McCarthy,Rowland R. Kao +6 more
TL;DR: This study suggests that, should natural transmission of atypical scrapie be occurring at all, it is doing so slowly, and is being well-distributed across regions of Great Britain and through the sheep-trading network.