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Artikel in ISI-gelisteten Zeitschriften (59)

• Augusiak, J., van den Brink, P.J., Grimm, V. (2014):
  Merging validation and evaluation of ecological models to 'evaludation': a review of terminology and a practical approach
  Ecol. Model. 280 , 117 - 128 10.1016/j.ecolmodel.2013.11.009
• Ayllón, D., Nicola, G.G., Parra, I., Elvira, B., Almodóvar, A. (2014):
  Spatio-temporal habitat selection shifts in brown trout populations under contrasting natural flow regimes
  Ecohydrology 7 (2), 569 - 579 10.1002/eco.1379
• Bacelar, F.S., Calabrese, J.M., Hernández-García, E. (2014):
  Exploring the tug of war between positive and negative interactions among savanna trees: Competition, dispersal, and protection from fire
  Ecol. Complex. 17 , 140 - 148 10.1016/j.ecocom.2013.11.007
• Banitz, T., Johst, K., Wick, L.Y., Schamfuß, S., Harms, H., Frank, K. (2014):
  Corrigendum: Highways versus pipelines: contributions of two fungal transport mechanisms to efficient bioremediation (vol 5, pg 211, 2013)
  Environ. Microbiol. Rep. 6 (4), 414 - 414 10.1111/1758-2229.12177
• Becher, M.A., Grimm, V., Thorbek, P., Horn, J., Kennedy, P.J., Osborne, J.L. (2014):
  BEEHAVE: a systems model of honeybee colony dynamics and foraging to explore multifactorial causes of colony failure
  J. Appl. Ecol. 51 (2), 470 - 482 10.1111/1365-2664.12222
• Bilke, L., Fischer, T., Helbig, C., Krawczyk, C., Nagel, T., Naumov, D., Paulick, S., Rink, K., Sachse, A., Schelenz, S., Walther, M., Watanabe, N., Zehner, B., Ziesch, J., Kolditz, O. (2014):
  TESSIN VISLab—laboratory for scientific visualization
  Environ. Earth Sci. 72 (10), 3881 - 3899 10.1007/s12665-014-3785-5
• Bohn, F.J., Frank, K., Huth, A. (2014):
  Of climate and its resulting tree growth: simulating the productivity of temperate forests
  Ecol. Model. 278 , 9 - 17 10.1016/j.ecolmodel.2014.01.021
• Bruggeman, D.J., Wiegand, T., Walters, J.R., González Taboada, F. (2014):
  Contrasting the ability of data to make inferences regarding dispersal: case study of the Red-cockaded woodpecker (Picoides borealis)
  Landsc. Ecol. 29 (4), 639 - 653 10.1007/s10980-014-0011-5
• Cipriotti, P.A., Aguiar, M.R., Wiegand, T., Paruelo, J.M. (2014):
  A complex network of interactions controls coexistence and relative abundances in Patagonian grass-shrub steppes
  J. Ecol. 102 (3), 776 - 788 10.1111/1365-2745.12246
• Cortés-Avizanda, A., Jovani, R., Donázar, J.A., Grimm, V. (2014):
  Bird sky networks: How do avian scavengers use social information to find carrion?
  Ecology 95 (7), 1799 - 1808 10.1890/13-0574.1
• Evans, M.R., Benton, T.G., Grimm, V., Lessells, C.M., O’Malley, M.A., Moustakas, A., Weisberg, M. (2014):
  Data availability and model complexity, generality, and utility: a reply to Lonergan
  Trends Ecol. Evol. 29 (6), 302 - 303 10.1016/j.tree.2014.03.004
• Everaars, J., Frank, K., Huth, A. (2014):
  Species ecology and the impacts of bioenergy crops: an assessment approach with four example farmland bird species
  GCB Bioenergy 6 (3), 252 - 264 10.1111/gcbb.12135
• Fedriani, J.M., Wiegand, T. (2014):
  Hierarchical mechanisms of spatially contagious seed dispersal in complex seed-disperser networks
  Ecology 95 (2), 514 - 526 10.1890/13-0718.1
• Fischer, R., Armstrong, A., Shugart, H.H., Huth, A. (2014):
  Simulating the impacts of reduced rainfall on carbon stocks and net ecosystem exchange in a tropical forest
  Environ. Modell. Softw. 52 , 200 - 206 10.1016/j.envsoft.2013.10.026
• Gabsi, F., Hammers-Wirtz, M., Grimm, V., Schäffer, A., Preuss, T.G. (2014):
  Coupling different mechanistic effect models for capturing individual- and population-level effects of chemicals: Lessons from a case where standard risk assessment failed
  Ecol. Model. 280 , 18 - 29 10.1016/j.ecolmodel.2013.06.018
• Getzin, S., Nuske, R.S., Wiegand, K. (2014):
  Using unmanned aerial vehicles (UAV) to quantify spatial gap patterns in forests
  Remote Sens. 6 (8), 6988 - 7004 10.3390/rs6086988
• Getzin, S., Wiegand, T., Hubbell, S.P. (2014):
  Stochastically driven adult–recruit associations of tree species on Barro Colorado Island
  Proc. R. Soc. B-Biol. Sci. 281 (1790), art. 20140922 10.1098/rspb.2014.0922
• Giladi, I., May, F., Ristow, M., Jeltsch, F., Ziv, Y. (2014):
  Scale-dependent species–area and species–isolation relationships: a review and a test study from a fragmented semi-arid agro-ecosystem
  J. Biogeogr. 41 (6), 1055 - 1069 10.1111/jbi.12299
• Grimm, V., Augusiak, J., Focks, A., Frank, B.M., Gabsi, F., Johnston, A.S.A., Liu, C., Martin, B.T., Meli, M., Radchuk, V., Thorbek, P., Railsback, S.F. (2014):
  Towards better modelling and decision support: Documenting model development, testing, and analysis using TRACE
  Ecol. Model. 280 , 129 - 139 10.1016/j.ecolmodel.2014.01.018
• Grimm, V., Thorbek, P. (2014):
  Population models for ecological risk assessment of chemicals: Short introduction and summary of a special issue. Editorial
  Ecol. Model. 280 , 1 - 4 10.1016/j.ecolmodel.2014.01.017
• Gutiérrez, A.G., Armesto, J.J., Díaz, M.F., Huth, A. (2014):
  Increased drought impacts on temperate rainforests from Southern South America: results of a process-based, dynamic forest model
  PLOS One 9 (7), e103226 10.1371/journal.pone.0103226
• Hai, N.H., Wiegand, K., Getzin, S. (2014):
  Spatial distributions of tropical tree species in northern Vietnam under environmentally variable site conditions
  Journal of Forestry Research 25 (2), 257 - 268 10.1007/s11676-014-0457-y
• Haila, Y., Henle, K., Apostolopoulou, E., Cent, J., Framstad, E., Görg, C., Jax, K., Klenke, R., Magnusson, W.E., Matsinos, Y., Müller, B., Paloniemi, R., Pantis, J., Rauschmayer, F., Ring, I., Settele, J., Similä, J., Touloumis, K., Tzanopoulos, J., Pe'er, G. (2014):
  Confronting and coping with uncertainty in biodiversity research and praxis
  Nat. Conserv.-Bulgaria (8), 45 - 75 10.3897/natureconservation.8.5942
• Hartig, F., Dislich, C., Wiegand, T., Huth, A. (2014):
  Technical note: approximate Bayesian parameterization of a process-based tropical forest model
  Biogeosciences 11 , 1261 - 1272 10.5194/bg-11-1261-2014
• Hartig, F., Münkemüller, T., Johst, K., Dieckmann, U. (2014):
  On the sympatric evolution and evolutionary stability of coexistence by relative nonlinearity of competition
  PLOS One 9 (9), e94454 10.1371/journal.pone.0094454
• Jacquemyn, H., Brys, R., Merckx, V.S.F.T., Waud, M., Lievens, B., Wiegand, T. (2014):
  Coexisting orchid species have distinct mycorrhizal communities and display strong spatial segregation
  New Phytol. 202 (2), 616 - 627 10.1111/nph.12640
• Jager, T., Barsi, A., Hamda, N.T., Martin, B.T., Zimmer, E.I., Ducrot, V. (2014):
  Dynamic energy budgets in population ecotoxicology: Applications and outlook
  Ecol. Model. 280 , 140 - 147 10.1016/j.ecolmodel.2013.06.024
• Jakoby, O., Grimm, V., Frank, K. (2014):
  Pattern-oriented parameterization of general models for ecological application: towards realistic evaluations of management approaches
  Ecol. Model. 275 , 78 - 88 10.1016/j.ecolmodel.2013.12.009
• Jakoby, O., Quaas, M.F., Müller, B., Baumgärtner, S., Frank, K. (2014):
  How do individual farmers’ objectives influence their evaluation of rangeland management strategies under a variable climate?
  J. Appl. Ecol. 51 (2), 483 - 493 10.1111/1365-2664.12216
• Kazmierczak, M., Wiegand, T., Huth, A. (2014):
  A neutral vs. non-neutral parametrizations of a physiological forest gap model
  Ecol. Model. 288 , 94 - 102 10.1016/j.ecolmodel.2014.05.002
• Körner, K., Pfestorf, H., May, F., Jeltsch, F. (2014):
  Modelling the effect of belowground herbivory on grassland diversity
  Ecol. Model. 273 , 79 - 85 10.1016/j.ecolmodel.2013.10.025
• Kowal, V.A., Schmolke, A., Kanagaraj, R., Bruggeman, D. (2014):
  Resource selection probability functions for gopher tortoise: providing a management tool applicable across the species’ range
  Environ. Manage. 53 (3), 594 - 605 10.1007/s00267-013-0210-x
• Lange, M., Siemen, H., Blome, S., Thulke, H.-H. (2014):
  Analysis of spatio-temporal patterns of African swine fever cases in Russian wild boar does not reveal an endemic situation
  Prev. Vet. Med. 117 (2), 317 - 325 10.1016/j.prevetmed.2014.08.012
• Lin, Y., Huth, F., Berger, U., Grimm, V. (2014):
  The role of belowground competition and plastic biomass allocation in altering plant mass–density relationships
  Oikos 123 (2), 248 - 256 10.1111/j.1600-0706.2013.00921.x
• Martin, B., Jager, T., Nisbet, R.M., Preuss, T.G., Grimm, V. (2014):
  Limitations of extrapolating toxic effects on reproduction to the population level
  Ecol. Appl. 24 (8), 1972 - 1983 10.1890/14-0656.1
• Martin, R., Müller, B., Linstädter, A., Frank, K. (2014):
  How much climate change can pastoral livelihoods tolerate? Modelling rangeland use and evaluating risk
  Glob. Environ. Change 24 , 183 - 192 10.1016/j.gloenvcha.2013.09.009
• McNair Sr., A., Nakagawa, S., Grimm, V. (2014):
  The evolutionary consequences of disrupted male mating signals: an agent-based modelling exploration of endocrine disrupting chemicals in the guppy
  PLOS One 9 (7), e103100 10.1371/journal.pone.0103100
• Meli, M., Palmqvist, A., Forbes, V.E., Groeneveld, J., Grimm, V. (2014):
  Two pairs of eyes are better than one: Combining individual-based and matrix models for ecological risk assessment of chemicals
  Ecol. Model. 280 , 40 - 52 10.1016/j.ecolmodel.2013.07.027
• Meyer, K.M., Soldaat, L.L., Auge, H., Thulke, H.-H. (2014):
  Adaptive and selective seed abortion reveals complex conditional decision making in plants
  Am. Nat. 183 (3), 376 - 383 10.1086/675063
• Mueller, T., Dressler, G., Tucker, C.J., Pinzon, J.E., Leimgruber, P., Dubayah, R.O., Hurtt, G.C., Böhning-Gaese, K., Fagan, W.F. (2014):
  Human land-use practices lead to global long-term increases in photosynthetic capacity
  Remote Sens. 6 (6), 5717 - 5731 10.3390/rs6065717
• Müller, B., Balbi, S., Buchmann, C.M., de Sousa, L., Dressler, G., Groeneveld, J., Klassert, C.J., Le, Q.B., Millington, J.D.A., Nolzen, H., Parker, D.C., Polhill, J.G., Schlüter, M., Schulze, J., Schwarz, N., Sun, Z., Taillandier, P., Weise, H. (2014):
  Standardised and transparent model descriptions for agent-based models: current status and prospects
  Environ. Modell. Softw. 55 , 156 - 163 10.1016/j.envsoft.2014.01.029
• Nguyen, H., Wiegand, K., Getzin, S. (2014):
  Spatial patterns and demographics of Streblus macrophyllus trees in a tropical evergreen forest, Vietnam
  J. Trop. For. Sci. 26 (3), 309 - 319
• Nyman, A.-M., Schirmer, K., Ashauer, R. (2014):
  Importance of toxicokinetics for interspecies variation in sensitivity to chemicals
  Environ. Sci. Technol. 48 (10), 5946 - 5954 10.1021/es5005126
• Pavlova, V., Nabe-Nielsen, J., Dietz, R., Svenning, J.-C., Vorkamp, K., Rigét, F.F., Sonne, C., Letcher, R.J., Grimm, V. (2014):
  Field metabolic rate and PCB adipose tissue deposition efficiency in East Greenland polar bears derived from contaminant monitoring data
  PLOS One 9 (8), e104037 10.1371/journal.pone.0104037
• Pe'er, G., Mihoub, J.-B., Dislich, C., Matsinos, Y. (2014):
  Towards a different attitude to uncertainty
  Nat. Conserv.-Bulgaria (8), 95 - 114 10.3897/natureconservation.8.8388
• Punchi-Manage, R., Wiegand, T., Wiegand, K., Getzin, S., Gunatilleke, C.V.S., Gunatilleke, I.A.U.N. (2014):
  Effect of spatial processes and topography on structuring species assemblages in a Sri Lankan dipterocarp forest
  Ecology 95 (2), 376 - 386 10.1890/12-2102.1
• Pütz, S., Groeneveld, J., Henle, K., Knogge, C., Martensen, A.C., Metz, M., Metzger, J.P., Ribeiro, M.C., Dantas de Paula, M., Huth, A. (2014):
  Long-term carbon loss in fragmented Neotropical forests
  Nat. Commun. 5 , art. 5037 10.1038/ncomms6037
• Radchuk, V., Johst, K., Groeneveld, J., Turlure, C., Grimm, V., Schtickzelle, N. (2014):
  Appropriate resolution in time and model structure for population viability analysis: insights from a butterfly metapopulation
  Biol. Conserv. 169 , 345 - 354 10.1016/j.biocon.2013.12.004
• Rodríguez, M., Delibes, M., Fedriani, J.M. (2014):
  Hierarchical levels of seed predation variation by introduced beetles on an endemic Mediterranean palm
  PLOS One 9 (10), e109867 10.1371/journal.pone.0109867
• Snell, R.S., Huth, A., Nabel, J.E.M.S., Bocedi, G., Travis, J.M.J., Gravel, D., Bugmann, H., Gutiérrez, A.G., Hickler, T., Higgins, S.I., Reineking, B., Scherstjanoi, M., Zurbriggen, N., Lischke, H. (2014):
  Using dynamic vegetation models to simulate plant range shifts
  Ecography 37 (12), 1184 - 1197 10.1111/ecog.00580
• Suárez-Esteban, A., Delibes, M., Fedriani, J.M. (2014):
  Unpaved roads disrupt the effect of herbivores and pollinators on the reproduction of a dominant shrub
  Basic Appl. Ecol. 15 (6), 524 - 533 10.1016/j.baae.2014.08.001
• Thiele, J.C., Kurth, W., Grimm, V. (2014):
  Facilitating parameter estimation and sensitivity analysis of agent-based models: a cookbook using NetLogo and R
  JASSS 17 (3), art. 11 10.18564/jasss.2503
• Thrippleton, T., Dolos, K., Perry, G.L.W., Groeneveld, J., Reineking, B. (2014):
  Simulating long-term vegetation dynamics using a forest landscape model: the post-Taupo succession on Mt Hauhungatahi, North Island, New Zealand
  N. Z. J. Ecol. 38 (1), 26 - 38
• van Teeffelen, A.J.A., Opdam, P., Wätzold, F., Hartig, F., Johst, K., Drechsler, M., Vos, C.C., Wissel, S., Quétier, F. (2014):
  Ecological and economic conditions and associated institutional challenges for conservation banking in dynamic landscapes
  Landsc. Urban Plan. 130 , 64 - 72 10.1016/j.landurbplan.2014.06.004
• Velázquez, E., De la Cruz, M., Gómez-Sal, A. (2014):
  Changes in spatial point patterns of pioneer woody plants across a large tropical landslide
  Acta Oecol. - Int. J. Ecol. 61 , 9 - 18 10.1016/j.actao.2014.09.001
• Vogt, J., Lin, Y., Pranchai, A., Frohberg, P., Mehlig, U., Berger, U. (2014):
  The importance of conspecific facilitation during recruitment and regeneration: A case study in degraded mangroves
  Basic Appl. Ecol. 15 (8), 651 - 660 10.1016/j.baae.2014.09.005
• Wätzold, F., Drechsler, M. (2014):
  Agglomeration payment, agglomeration bonus or homogeneous payment?
  Resour. Energy Econ. 37 , 85 - 101 10.1016/j.reseneeco.2013.11.011
• Weiss, L., Pfestorf, H., May, F., Körner, K., Boch, S., Fischer, M., Müller, J., Prati, D., Socher, S.A., Jeltsch, F. (2014):
  Grazing response patterns indicate isolation of semi-natural European grasslands
  Oikos 123 (5), 599 - 612 10.1111/j.1600-0706.2013.00957.x
• Winkler, E., Peintinger, M. (2014):
  Impact of changing flood regime on a lakeshore plant community: Long-term observations and individual-based simulation
  Ecol. Model. 273 , 151 - 164 10.1016/j.ecolmodel.2013.10.033

Artikel in anderen Zeitschriften (nicht ISI gelistet) (2)

• DeAngelis, D.L., Grimm, V. (2014):
  Individual-based models in ecology after four decades
  F1000Prime Reports 6 , art. 39 10.12703/P6-39
• Louzao, M., Wiegand, T., Bartumeus, F., Weimerskirch, H. (2014):
  Coupling instantaneous energy-budget models and behavioural mode analysis to estimate optimal foraging strategy: an example with wandering albatrosses
  Mov. Ecol. 2 , art. 8 10.1186/2051-3933-2-8

Zeitschriftenherausgaben (1)

• Grimm, V., Thorbek, P. (eds., 2014):
  Population models for ecological risk assessment of chemicals
  Ecol. Model. 280 (24 May 2014), 1-148

Bücher (1)

• Wiegand, T., Moloney, K.A. (2014):
  Handbook of spatial point-pattern analysis in ecology
  Chapman & Hall / CRDC applied environmental statistics 9
  CRC Press / Taylor & Francis, Boca Raton, FL, 510 pp.

Buchkapitel (5)

• Barbier, N., Bellot, J., Couteron, P., Wiegand, T., Grimm, V., Deblauwe, V., Biro, P., Mueller, E.N. (2014):
  Assessment of patterns in ecogeomorphic systems
  In: Mueller, E.N., Wainwright, J., Parsons, A.J., Turnbull, L. (eds.)
  Patterns of land degradation in drylands: understanding self-organised ecogeomorphic systems
  Springer, Utrecht, p. 247 - 264 10.1007/978-94-007-5727-1_9
• Caylor, K.K., Okin, G.S., Turnbull, L., Wainwright, J., Wiegand, T., Franz, T.E., Parsons, A.J. (2014):
  Integrating short- and long-range processes into models: the emergence of pattern
  In: Mueller, E.N., Wainwright, J., Parsons, A.J., Turnbull, L. (eds.)
  Patterns of land degradation in drylands: understanding self-organised ecogeomorphic systems
  Springer, Utrecht, p. 141 - 167 10.1007/978-94-007-5727-1_6
• Grimm, V., Becher, M.A., Kennedy, P., Thorbek, P., Osborne, J. (2014):
  Ecological modeling for pesticide risk assessment for honey bees and other pollinators
  In: Fischer, D., Moriarty, T. (eds.)
  Pesticide risk assessment for pollinators
  Wiley-Blackwell, Chichester, p. 149 - 162
• Jeltsch, F., Turnbull, L., Scarsoglio, S., Alados, C.L., Gallart, F., Mueller, E.N., Barbier, N., Millington, J.D.A., Wainwright, J., Wieczorek, M., Grimm, V. (2014):
  Resilience, self-organization, complexity and pattern formation
  In: Mueller, E.N., Wainwright, J., Parsons, A.J., Turnbull, L. (eds.)
  Patterns of land degradation in drylands: understanding self-organised ecogeomorphic systems
  Springer, Utrecht, p. 55 - 84 10.1007/978-94-007-5727-1_3
• Verdonck, F., Chauzat, M.-P., Mosbach-Schulz, O., Ritter, W., Rortais, A., Thulke, H.-H., Vos, S., Koenen, F. (2014):
  An improved method for qualitative risk assessment - validation and application to a bee pest
  In: Mintiens, K., Parkin, T.D.H. (eds.)
  Proceedings 2014 SVEPM Annual Conference held in Dublin, Ireland, 26–28 March 2014
  Society for Veterinary Epidemiology and Preventive Medicine, p. 260 - 270

Berichte (1)

• Mewes, M., Sturm, A., Johst, K., Drechsler, M., Wätzold, F. (2014):
  Handbuch der Software DSS-Ecopay Version 2.0 zur Bestimmung kosteneffizienter Ausgleichszahlungen für Maßnahmen zum Schutz gefährdeter Arten und Lebensraumtypen im Grünland
  UFZ-Bericht 2/2014
  Helmholtz-Zentrum für Umweltforschung - UFZ, Leipzig, 176 S.

Berichtartikel (2)

• Mewes, M., Wätzold, F., Drechsler, M., Johst, K., Sturm, A. (2014):
  DSS-Ecopay: Entscheidungshilfe zur Bestimmung ökologisch wirksamer und kosteneffizienter Zahlungen für Artenschutzmaßnahmen im Grünland
  In: Schröter-Schlaack, C., Wittmer, H., Mewes, M., Schniewind, I. (Hrsg.)
  Der Nutzen von Ökonomie und Ökosystemleistungen für die Naturschutzpraxis. Workshop IV: Landwirtschaft. Vierte Veranstaltung der Workshop-Reihe des Bundesamtes für Naturschutz und des Helmholtz-Zentrums für Umweltforschung – UFZ, 15.-18. April 2013, Internationale Naturschutzakademie Insel Vilm
  BfN-Skripten 359
  Bundesamt für Naturschutz (BfN), Bonn, S. 72 - 81
• Tello, M., Pardini, M., Papathanassiou, K., Fischer, R. (2014):
  Towards forest structure characteristics retrieval from SAR tomographic profiles
  Electronic Proceedings EUSAR 2018; 12th European Conference on Synthetic Aperture Radar, 04-07 June, 2018, Aachen, Germany
  VDE-Verlag, Berlin ; Offenbach, p. 1425 - 1428

Qualifizierungsarbeiten (3)

• Fischer, R. (2014):
  Modellierung der Dynamik afrikanischer Tropenwälder. Analyse des Einflusses von Störungen auf tropische Wälder mit Hilfe des Waldmodells FORMIND
  Dissertation, Universität Osnabrück
  PhD Dissertation 4/2014
  Helmholtz-Zentrum für Umweltforschung - UFZ, Leipzig, 187 S.
• Taubert, F. (2014):
  Modelling and analysing the structure and dynamics of species-rich grasslands and forests
  Dissertation, Universität Osnabrück
  PhD Dissertation 5/2014
  Helmholtz-Zentrum für Umweltforschung - UFZ, Leipzig, 148 pp.
• Weise, H. (2014):
  Land use change in the context of bioenergy production: Impact assessment using agent-based modelling
  Dissertation, Universität Osnabrück
  PhD Dissertation 6/2014
  Helmholtz-Zentrum für Umweltforschung - UFZ, Leipzig, 149 pp.

Tagungsbeiträge (2)

• Seppelt, R., Martin, R., Finger, A., Henzen, C., Lindner, M., Pietzsch, K., Werntze, A., Zander, U., Schulze, J. (2014):
  Experiences with a serious online game for exploring complex relationships of sustainable land management and human well-being: LandYOUs
  In: Ames, D.P., Quinn, N.W.T., Rizzoli, A.E. (eds.)
  Proceedings of the 7th International Congress on Environmental Modelling and Software (iEMSs), June 15-19, San Diego, California, USA
  International Environmental Modelling and Software Society (iEMSs), Manno, 1 - 8
• Thulke, H.-H., Lange, M., Siemen, H., Blome, S. (2014):
  Digging into the myth – African Swine Fever, Russian wild boar and the endemicity hypothesis
  In: Mintiens, K., Parkin, T.D.H. (eds.)
  2014 SVEPM Annual Conference held in Dublin, Ireland 26th – 28th March 2014 : Proceedings
  Society for Veterinary Epidemiology and Preventive Medicine, 86 - 95