PUBLICATIONS
INVASION ECOLOGY

Goldson, S. L., Barker, G. M., Chapman, H. M., Popay, A. J., Stewart, A. V., Caradus, J. R., & Barratt, B. I. P. (2020). Severe Insect Pest Impacts on New Zealand Pasture: The Plight of an Ecological Outlier.. Journal of insect science (Online), 20(2). doi:10.1093/jisesa/ieaa018

Morgan-Richards, M., Smissen, R. D., Shepherd, L. D., Wallis, G. P., Hayward, J. J., Chan, C. H., . . . Chapman, H. M. (2009). A review of genetic analyses of hybridisation in New Zealand. Journal of the Royal Society of New Zealand, 39(1), 15-34. doi:10.1080/03014220909510561

Houliston, G. J., Chapman, H. M., & Bicknell, R. A. (2006). The influence of genotype and environment on the fecundity and facultative expression of apomixes in Hieracium pilosella. Folia Geobotanica, 41(2), 165-181.

Morgan-Richards, M., Trewick, S., & Chapman, H. M. (2004). Interspecific hybridisation among Hieracium species in New Zealand: evidence from flow cytometry. Heredity, 93, 34-42.

Chapman, H. M., & Robson, B. (2004). Population genetic structure of a colonizing, triploid weed, Hieracium Lepidulum. Heredity, 92, 182-188. 

Houliston, G., & Chapman, H. M. (2004). Reproductive strategy and population variability in the facultative apomict Hieracium pilosella (Aster
aceae). American Journal of Botany, 91(1), 37-44.

Trewick, S., Morgan-Richards, M., Chapman, H. M., & Krahulcova, A. (2004). Chloroplast DNA diversity of Hieracium pilosella (Asteraceae) introduced to New Zealand: reticulation, hybridization and invasion. American Journal of Botany, 91, 73-85.

Chapman, H., Houliston, G. J., Robson, B., & Iline, I. (2003). A Case of Reversal: The Evolution and Maintenance of Sexuals from Parthenogenetic Clones in Hieracium pilosella. International Journal of Plant Sciences, 164(5), 719-728. doi:10.1086/376819

Chapman, H., Pearson, M. L., & Robson, B. (2003). Genetic diversity in tussock hawkweed (Hieracium lepidulum) and use of allelic frequencies for identifying patterns of spread. DOC Science Internal Series, (109), 19pp.

Chapman, H., & Brown, J. (2001). Thawing’ of ‘frozen’ variation in an adventive, facultatively apomictic, clonal weed. Plant Species Biology, 16(2), 107-118. doi:10.1046/j.1442-1984.2001.00056.x

Houliston, G., & Chapman, H. M. (2001). Sexual reproduction in field populations of the facultative apomict, Hieracium pilosella. New Zealand Journal of Botany, 39, 141-146.

Chapman, H. M., Parh, D., & Oraguzie, N. (2000). Genetic structure and colonising success of a clonal weedy species, Pilosella officinarum (Asteraceae). Heredity, 84(4), 401-409.

Chapman, H. M., & Bicknell, R. (2000). Recovery of a sexual and an apomictic hybrid from crosses between the facultative apomicts Hieracium caespitosum and H. praealtum. New Zealand Journal of Ecology, 24, 81-86

McCall, A. C., Kelly, D., & Chapman, H. C. (2004). Little geographic or host plant genetic variation in a Chionochloa (Poaceae) seeds predator (Cecidomyiidae: undescribed species). New Zealand Journal of Ecology, 28(2), 215-224.

Chapman, H. M., Olson, S., & Trumm, D. (2004). A report on the montane forests of Taraba State Nigeria, and an assessment of how have they changed over the past thirty years. Oryx, 38(3), 282-290.

Phillips, C. B., Cane, R. P., Mee, J., Chapman, H. M., Hoelmer, K. A., & Coutinot, D. (2002). Intraspecific variation in the ability of Microctonus aethiopoides (Hymenoptera: Braconidae) to parasitise Sitona lepidus (Coleoptera: Curculionidae). New Zealand Journal of Agricultural Research, 45(4), 295-303.

Phillips, C. B., Cane, R. P., Mee, J., Chapman, H. M., Hoelmer, K. A., & Coutinot, D. (2002). Intraspecific variation at the ability of Microctonus aethiopoides Loan

(Hymenoptera: Braconidae) to parasitise Sitona lepidus Gyllenhal (Coleoptera, Curculionidae). NZJ Agricultural Research, 45(4), 295-303.

Kraholcova, A., Kraholec, F. F., & Chapman, H. M. (2000). Variation in Hieracium subjen, Pibsella (Asteraccae): What do we know about its sources?. Folia Geobotanica, 35, 319-338.

Mitchell, A., Hogan, K., & Chapman, H. M. (1999). Genetic variation in Aciphylla glaucescens (Apiaceae). New Zealand Journal of Ecology, 23(1), 61-67.

Rowarth, J. S., Chapman, H. M., & Novis, P. (1998). Water stress and seed yield in perennial ryegrass (Lolium perernne L.) grown in pits. Journal of Applied Seed Production, 15, 89-92.

Oraguzie, N. C., McNeil, D. L., Paterson, A. M., & Chapman, H. M. (1998). Comparison of RAPD and MorphoNut markers for revealing genetic relationships between chestnut species (Castanea spp) and New Zealand chestnut selections. New Zealand Journal of Crop and Horticultural Science, 26(2), 109-115.

Abbott, R. J., Chapman, H. M., & Forbes, D. (1995). Molecular diversity and derivations of populations of Silene acaulis and Saxifraga oppositifolia from the high Arctic and more southerly latitudes. Molecular Ecology, 4(2), 199-208. doi:10.1111/j.1365-294X.1995.tb00209.x

Chapman, H. M., & Bannister, P. B. (1995). Flowering, shoot extension, and reproductive performance of heather, Calluna vulgaris (L). Hull, in Tongariro National Park, New Zealand. New Zealand Journal of Botany, 33(1), 111-119. doi:10.1080/0028825X.1995.10412948

Crawford, R. M. M., Chapman, H. M., & Smith, L. C. (1995). Adaptation to variation in growing season length in Arctic populations of Saxifraga oppositifolia L. Botanical Journal of Scotland, 47(2), 177-192. doi:10.1080/03746609508684828

Chapman, H. M., & Bannister, P. B. (1994). Vegetative Production and Performance of Calluna vulgaris in New Zealand, with Particular Reference to Tongariro National- Park. New Zealand Journal of Ecology, 18(2), 109-121.

Crawford, R. M. M., Chapman, H. M., & Hodge, H. (1994). Anoxia tolerance in high Arctic vegetation. Arctic and Alpine Research, 26(3), 308-312. Retrieved from http://www.jstor.org/stable/1551944

Crawford, R. M. M., Chapman, H. M., Balfour, J., & Abbott, R. J. (1993). Potential impact of climatic warming on Arctic vegetation. Flora, 188, 367-381.

Chapman, H. M., & Bannister, P. B. (1990). The spread of heather, Calluna vulgaris (L.) Hull, into indigenous plant communities of Tongariro National Park, New Zealand. New Zealand Journal of Ecology, 14, 7-16
.
Chapman, H. M., Dodds, K. G., & Keoghan, J. M. (1990). Evaluation of the agronomic potential of pasture legume introductions on droughty outwash soils. New Zealand Journal of Agricultural Research, 33(1), 21-28. doi:10.1080/00288233.1990.10430657