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AG Trillmich
AG Krüger
AG Bischof
AG Steinfartz
AG von Engelhardt
AG Hoffman
Thompson Reuter Researcher ID: K-7725-2012.
2013
53) Hoffman, J.I., Thorne, M.A.S., Trathan, P.N. & Forcada, J. Transcriptome of the dead: characterisation of immune genes and marker development from necropsy samples in a free-ranging marine mammal. BMC Genomics,14: 52. Doi: 10.1186/1471-2164-14-52. 
52) Phillips, C.D., Hoffman, J.I., George, J.C., Suydam, R.S., Huebinger , R.M., Patton, J.C. & Bickham, J.W. Molecular insights into the historical demography of bowhead whales: understanding the evolutionary basis of contemporary management practices. Ecology and Evolution,3: 18-37. Doi: 10.1002/ece3.374.
2012
51) Nichols, H.J., Jamie, G.A., Jordan, N., Cant, M.A. & Hoffman, J.I. Fine-scale spatiotemporal patterns of genetic variation reflect budding dispersal coupled with strong natal philopatry in a cooperatively breeding mammal. Molecular Ecology, 21: 5348-5362. Doi: 10.1111/mec.12015.
50) Harper, L., Morley, S., Hoffman, J.I., Clark, M.S. & Peck, L. Iceberg scour and shell damage in the Antarctic bivalve Laternula elliptica. PLoS ONE, 7: e46341. Doi: 10.1371/journal.pone.0046341.
49) da Assunção Soares Franco, M., Hoffman, J.I., Harwood, J. & Amos, W. MHC genotype and near-deterministic mortality in grey seals. Scientific Reports, 2: 659. Doi: 10.1038/srep00659.
48) Hoffman, J.I., Tucker, R., Clark, M.S., Forcada, J., Slate, J. Rates of assay success and genotyping error when single nucleotide polymorphism genotyping in non-model organisms: a case study in the Antarctic fur seal. Molecular Ecology Resources, 16: 861-872. Doi: 10.1111/j.1755-0998.2012.03158.x.
47) Hoffman, J.I., Peck, L.S., Amos, W., Clark, M.S. Widespread amplification of Amplified Fragment Length Polymorphisms (AFLPs) in marine Antarctic animals. Polar Biology, 35: 919-929. Doi: 10.1007/s00300-011-1139-2.
46) Hoffman, J.I. Clarke, A., Clark, M.S., Fretwell, P., Linse, K. & Peck, L. Unexpected fine-scale population structure in a broadcast-spawning Antarctic marine mollusc. PLoS ONE, 7: e32415. Doi: 10.1371/journal.pone.0032415.
45) Smith, E., Hoffman, J.I., Amos, W., Green, L.E. Association of candidate microsatellite heterozygosity with footrot in domestic sheep. Livestock Science, 143: 293-299. Doi: 10.1016/j.livsci.2011.10.009.
44) Hoffman, J.I. & Forcada, J. Extreme natal philopatry in female Antarctic fur seals (Arctocephalus gazella). Mammalian Biology, 77: 71-73. Doi: 10.1016/j.mambio.2011.09.002.
2011
43) Hoffman, J.I., Grant, S.M., Forcada, J. & Phillips, C.D. Bayesian inference of a historical genetic bottleneck in a heavily exploited marine mammal. Molecular Ecology, 20: 3989-4008. Doi: 10.1111/j.1365-294X.2011.05248.x. Supplementary information
42) Hoffman, J.I. & Nichols, H.J. A novel approach for mining polymorphic microsatellite markers in silico. PLoS ONE, 6: e23283. Doi: 10.1371/journal.pone.0023283.
41) Hoffman, J.I. Gene discovery in the Antarctic fur seal (Arctocephalus gazella) skin transcriptome. Molecular Ecology Resources, 11: 703-711. Doi: 10.1111/j.1755-0998.2011.02999.x. Journal cover
40) Driscol, E., Hoffman J.I., Green, L.E. & Amos, W. A preliminary study of genetic factors that influence susceptibility to tuberculosis in the British cattle herd. PloS ONE, 6: e18806. Doi: 10.1371/journal.pone.0018806.
39) Amos W., Driscoll, E. & Hoffman, J.I. Candidate genes versus genomewide associations: which are better for detecting genetic susceptibility to infectious disease? Proceedings of the Royal Society, Series B, 278: 1183–1188. Doi: 10.1098/rspb.2010.1920.
38) Hoffman, J.I., Clarke, A., Linse, K. & Peck, L. Effects of brooding and broadcasting reproductive modes on the population genetic structure of two Antarctic gastropod molluscs. Marine Biology, 158: 287–296. Doi: 10.1007/s00227-010-1558-6.
37) Hoffman, J.I., Clarke, A.C., Linse, K. & Peck, L. Strong population genetic structure in a broadcast-spawning Antarctic marine invertebrate. Journal of Heredity, 102: 55–66. Doi: 10.1093/jhered/esq094.
36) Cammen, K, Hoffman, J.I., Knapp, L.A., Harwood, J. & Amos, W. (2011). Geographic variation of the major histocompatibility complex in Eastern Atlantic grey seals (Halichoerus grypus). Molecular Ecology, 20: 740–752. Doi: 10.1111/j.1365-294X.2010.04975.x.
2010
35) Hoffman, J.I., Hanson, N., Forcada, J., Trathan, P.N. & Amos, W. Getting long in the tooth: a strong positive correlation between canine size and heterozygosity in the Antarctic fur seal Arctocephalus gazella. Journal of Heredity, 101: 527–538. Doi: 10.1093/jhered/esq045. Journal cover
34) Hoffman, J.I., Forcada, J. & Amos, W. Exploring the mechanisms underlying a heterozygosity-fitness correlation for canine size in the Antarctic fur seal Arctocephalus gazella. Journal of Heredity, 101: 539–552. Doi:10.1093/jhered/esq046.
33) Hoffman, J.I., Peck L.S., Hillyard, G., Zieritz, A. & Clark, M.S. No evidence for genetic differentiation between Antarctic limpet Nacella concinna morphotypes. Marine Biology, 157: 765–778. Doi: 10.1007/s00227-009-1360-5.
32) Hoffman, J.I., Munro, K., Amos, W. & Kilner, R.M. High rates of infidelity in the grey fantail Rhipidura albiscapa suggest that testis size may be a better correlate of extra-pair paternity than sexual dimorphism. Ibis, 152: 378–385. Doi: 10.1111/j.1474-919x.2009.01007.x.
31) Zieritz, A., Hoffman, J.I., Amos, W. & Aldridge D.C. Phenotypic plasticity and genetic isolation-by-distance in the freshwater mussel Unio pictorum (Mollusca: Unionoida). Evolutionary Ecology, 24: 923–938. Doi: 10.1007/s10682-009-9350-0.
30) Amos, W. & Hoffman, J.I. Evidence that two main bottleneck events shaped modern human genetic diversity. Proceedings of the Royal Society, Series B, 277: 131–137. Doi: 10.1098/rspb.2009.1473.
29) Dasmahapatra, K.K., Elias, M., Hill, R.I., Hoffman, J.I. & Mallet, J. Mitochondrial DNA barcoding detects some species that are real, and some that are not. Molecular Ecology Resources, 10: 264–273. Doi: 10.1111/j.1755-0998.2009.02763.x.
28) Skidmore, R., Leach, C., Hoffman, J.I., Amos, W. & Aldridge, D. Conservation Genetics of the Endangered Depressed River Mussel, Pseudanodonta complanata, using Amplified Fragment Length Polymorphism (AFLP) Markers. Aquatic Conservation: Marine and Freshwater Ecosystems, 20: 560–567. Doi: 10.1002/aqc.1131.
27) Brammah, M., Hoffman J.I., Amos, W. & Davies N. Genetic divergence between and within two subspecies of Laudakia stellio on islands in the Greek Cyclades. The Herpetological Journal, 20: 91–98.
2009
26) Hoffman, J.I., Dasmahapatra, K.K., Amos, W., Phillips, C.D., Gelatt, T.S. & Bickham, J.W. Contrasting patterns of genetic diversity at three different genetic markers in a marine mammal metapopulation. Molecular Ecology, 18: 2961–2978. Doi: 10.1111/j.1365-294X.2009.04246.x.
25) Hoffman, J.I. & Forcada, J. Genetic analysis of twinning in Antarctic fur seals (Arctocephalus gazella). Journal of Mammalogy, 90: 621–628. Doi: 10.1644/08-MAMM-A-264R1.1.
24) Hoffman, J.I. A panel of new microsatellite loci for genetic studies of Antarctic fur seals and other otariid species. Conservation Genetics, 10: 989–992. Doi: 10.1007/s10592-008-9669-z.
23) Dasmahapatra, K.K., Hoffman, J.I. & Amos, W. (2009). Pinniped phylogenetic relationships inferred using AFLP markers. Heredity, 103: 168–177. Doi: 10.1038/hdy.2009.25.
22) Oliveira, L., Meyer, D., Hoffman, J.I., Majluf, P. & Morgante, J.S. Evidence of a genetic bottleneck in an El Nino affected population of South American fur seals, Arctocephalus australis. Journal of the Marine Biological Association of the United Kingdom, 89: 1717–1725. Doi: 10.1017/S0025315409000162.
21) Parkes, K.A., Amos, W., Moore, N.W., Hoffman, J.I. & Moore, J. Population structure and speciation in the dragonfly Sympetrum striolatum / nigrescens: an analysis using AFLP markers. European Journal of Entomology, 106: 179–184.
20) Temple, H.J., Hoffman, J.I. & Amos, W. Group structure, mating system and extra-group paternity in the cooperatively breeding White-breasted Thrasher Ramphocinclus brachyurus. Ibis, 151: 99–112. Doi: 10.1111/j.1474-919X.2008.00867.x.
2008
19) Hoffman, J.I., Dasmahapatra, K.K. & Nichols, H.J. Ten novel polymorphic dinucleotide microsatellite loci cloned from the Antarctic fur seal Arctocephalus gazella. Molecular Ecology Resources, 8: 459–461. doi: 10.1111/j.1471-8286.2007.01993.x.
18) Oliveira, L., Hoffman, J.I., Hingst-Zaher, E., Majluf, P., Muelbert, M.M.C., Amos, W. & Morgante, J.S. Morphological and genetic evidence for two Evolutionary Significant Units (ESUs) in the South American fur seal Arctocephalus australis. Conservation Genetics, 9: 1451–1466. Doi: 10.1007/s10592-007-9473-1.
17) Rijks, J.M., Hoffman, J.I., Kuiken, T., Osterhaus, A.D.M.E. & Amos, W. Heterozygosity and lungworm burden in harbour seals (Phoca vitulina). Heredity, 100: 587-593. Doi: 10.1038/hdy.2008.18.
2007
16) Hoffman, J.I., Forcada, J., Trathan, P.N. & Amos, W. Female fur seals show active choice for males that are heterozygous and unrelated. Nature, 445: 912–914. doi: 10.1038/nature05558. Supplementary information
15) Hoffman, J.I., Wolf, J.B.W. & Steinfartz, S. Ten novel dinucleotide microsatellite loci cloned from the Galapagos sea lion (Zalophus californianus wollebaeki) are polymorphic in other pinniped species. Molecular Ecology Notes, 7: 103–105. doi: 10.1111/j.1471-8286.2006.01544.x.
14) Amos, W., Hoffman, J.I., Frodsham, A., Zhang, L., Best, S. & Hill, A.V.S. Automated binning of microsatellite alleles: problems and solutions. Molecular Ecology Notes, 7: 10–14. doi: 10.1111/j.1471-8286.2006.01560.x.
2006
13) Hoffman, J.I., Trathan, P.N. & Amos, W. Genetic tagging reveals extreme site fidelity in territorial male Antarctic fur seals Arctocephalus gazella. Molecular Ecology, 15: 3841–3847. doi: 10.1111/j.1365-294X.2006.03053.x.
12) Hoffman, J.I., Matson, C., Amos, W. Loughlin, T.R. & Bickham, J.W. Deep genetic subdivision within a continuously distributed and highly vagile marine mammal, the Steller’s sea lion Eumetopias jubatus. Molecular Ecology, 15: 2821–2832. doi: 10.1111/j.1365-294X.2006.02991.x.
11) Hoffman, J.I., Forcada, J. & Amos, W. No relationship between microsatellite variation and neonatal fitness in Antarctic fur seals Arctocephalus gazella. Molecular Ecology, 15: 1995-2005. doi: 10.1111/j.1365-294X.2006.02894.x
10) Temple, H.J., Hoffman, J.I. & Amos, W. Dispersal, philopatry and inter-group relatedness: fine-scale genetic structure in the white-breasted thrasher Ramphocinclus brachyurus. Molecular Ecology, 15: 3449–3458. doi:10.1111/j.1365-294X.2006.03006.x.
9) Jin, L., Temple, H. J., Hoffman, J.I., Tan, S. & Amos, W. Polymorphic microsatellite DNA markers for the White-breasted Thrasher, Ramphocinclus brachyurus. Molecular Ecology Notes, 6: 862–864. doi: 10.1111/j.1471-8286.2006.01375.x.
8) Jin, L., Munro, K., Tan, S. Hoffman, J.I. & Amos, W. Polymorphic microsatellite DNA markers for the grey fantail, Rhipidura albiscapa. Molecular Ecology Notes, 6: 75–76. doi: 10.1111/j.1471-8286.2005.01143.x.
2005
7) Hoffman, J.I. & Amos, W. Microsatellite genotyping errors: detection approaches, common sources and consequences for paternal exclusion. Molecular Ecology, 14: 599–612. doi: 10.1111/j.1365-294X.2004.02419.x
6) Hoffman, J.I. & Amos, W. Does kin selection influence fostering behaviour in Antarctic fur seals (Arctocephalus gazella)? Proceedings of the Royal Society, Series B, 272: 2017–2022. doi: 10.1098/rspb.2005.3176.
2004
5) Hoffman, J.I., Boyd, I.L.B. & Amos, W. Exploring the relationship between parental relatedness and male reproductive success in the Antarctic fur seal Arctocephalus gazella. Evolution, 58(9): 2087–2099
2003
4) Hoffman, J.I., Boyd, I.L.B. & Amos, W. Male reproductive strategy and the importance of maternal status in the Antarctic fur seal Arctocephalus gazella. Evolution, 57(8): 1917–1930.
3) Webster, J.P., Hoffman, J.I. & Berdoy, M. Parasite resistance and mate choice–battle of the genders in a simultaneous hermaphrodite. Proceedings of the Royal Society, Series B, 270: 1481–1485.
2001
2) Webster, J.P., Davies, C., Hoffman, J.I. & Woolhouse, M.E.J. Population genetics of the schistosome intermediate host Biomphalaria pfeifferi in the Zimbabwean highveld: implications for co-evolutionary theory. Annals of Tropical Medicine and Parasitology, 95 (2): 203–214.
1998
1) Hoffman, J.I., Webster, J.P., Ndamba, J. & Woolhouse, M.E.J. Extensive genetic variation revealed within Biomphalaria pfeifferi from one river system in the Zimbabwean highveld. Annals of Tropical Medicine and Parasitology, 92(6): 693–698.
2004
4) Hoffman, J.I. Genetic analysis of male reproductive success in the Antarctic fur seal Arctocephalus gazella. PhD thesis, University of Cambridge.
1997
3) Hoffman, J.I. Genetic variation in the schistosome intermediate host Biomphalaria pfeifferi: Analysis of populations from a Zimbabwean river system using Random Amplified Polymorphic DNA (RAPD) markers. MSc thesis, University of Oxford.
2) Hoffman, J.I. Insect faunas of Tanzanian Acacia tree canopies: biodiversity, community structure and the ecological significance of ant attendance. MSc thesis, University of Oxford.
1994
1) Hoffman, J.I. An experimental investigation into the orientation behaviour of scouts of the European Amazon Ant Polyergus rufescens Latr. (Hymenoptera: Formicidae) in the province of Parma, Italy . BSc thesis. Department of Biological Sciences, University of Wales, Swansea.
