Professor
Dalhousie University, BSc, Honours
Dalhousie University, MES
University of Toronto, 1987, PhD

 

I have been working to understand the consequences of environmental change, driven by the changing climate, on Arctic tundra ecosystems through long-term observations and field experiments. Studies of plant growth, phenology and reproduction, biodiversity responses, biotic interactions, evolutionary and migration potential of plant species, carbon and nutrient fluxes, and effects of permafrost disturbance form the basis of investigations by my group. We also work in Arctic communities to help northern students understand and interpret observations of environmental change by elders through shared field and class experiences and participation in science-based projects on berry producing shrub species.

2019

BOULANGER-LAPOINTE, N., GÉRIN-LAJOIE, J., SIEGWART COLLIER, L., DESROSIERS, S., SPIECH, C., HENRY, G. H. R., HERMANUTZ, L., LÉVESQUE, E. and CUERRIER, A. 2019 ‘Berry Plants and Berry Picking in Inuit Nunangat: Traditions in a Changing Socio-Ecological Landscape’ Human Ecology 47(1), 81-93  https://doi.org/10.1007/s10745-018-0044-5

PREVÉY, J. S., RIXEN, C., RÜGER, N., HØYE, T. T., BJORKMAN, A. D., MYERS-SMITH, I. H., ELMENDORF, S. C., ASHTON, I. W., CANNONE, N., CHISHOLM, C. L., CLARK, K., COOPER, E. J., ELBERLING, B., FOSAA, A. M., HENRY, G. H. R., HOLLISTER, R. D., JÓNSDÓTTIR, I. S., KLANDERUD, K., KOPP, C. W., LÉVESQUE, E., MAURITZ, M., MOLAU, U., NATALI, S. M., OBERBAUER, S. F., PANCHEN, Z. A., POST, E., RUMPF, S. B., SCHMIDT, N. M., SCHUUR, E., SEMENCHUK, P. P., SMITH, J. G., SUDING, K. N., TOTLAND, Ø., TROXLER, T., VENN, S., WAHREN,  C-H, WELKER, J. M. and WIPF, S. 2019 ‘Warming shortens flowering seasons of tundra plant communities’ Nature Ecology & Evolution 3, 45-52

BROWN, C. D., DUFOUR-TREMBLAY, G., JAMESON, R. G., MAMET, S. D., TRANT, A. J., WALKER, X. J., BOUDREAU, S., HARPER, K. A., HENRY, G. H. R., HERMANUTZ, L., HOFGAARD, A., ISAEVA, L., KERSHAW, G. P. and JOHNSTONE, J. F. 2019 ‘Reproduction as a bottleneck to treeline advance across the circumarctic forest tundra ecotone’ Ecography 42(1), 137-147   https://doi.org/10.1111/ecog.03733

2018

CHRISTIANSEN, C. T., LAFRENIÉRE, M. J., HENRY, G. H. R. and GROGAN, P. 2018 ‘Long term deepened snow promotes tundra evergreen shrub growth and summertime ecosystem net CO2 gain but reduces soil carbon and nutrient pools’ Global Change Biology 24(8), 3508-3525, https://doi.org/10.1111/gcb.14084

ROBINSON, S. V. J. and HENRY, G. H. R. 2018 ‘High Arctic plants show independent responses to pollination and experimental warming’ Botany 96(6), 385-396, https://doi.org/10.1139/cjb-2017-0200

BJORKMAN, A. D., MYERS-SMITH, I., ELMENDORF, S. C. et al (125 authors, including HENRY, G. H. R.) 2018 ‘Plant functional trait change across a warming tundra biome’ Nature 562, 57-62

BJORKMAN, A. D., MYERS-SMITH, I. H., ELMENDORF, S. C., NORMAND, S., THOMAS, H. J. D.,  ALATALO, J. M., ALEXANDER, H., ANADON-ROSELL, A., ANGERS-BLONDIN, S., BAI, Y., BARUAH, G., BEEST, M. T., BERNER, L., BJÖRK, R. G., BLOK, D., BUCHWAL, A., BURAS, A. CARBOGNANI, M. CHRISTIE, K., COLLIER, L. S., COOPER, E. J., CORNELISSEN, J. H. C., DICKINSON, K., DULLINGER, S., ELBERLING, B., ESKELINEN, A., FORBES, B. C., FREI, E. R., GARCIA, M. I., GOOD, M., GRAU, O., GREEN, P., GREVE, M., GROGAN, P., HÁJEK, T., HALLINGER, M., HARPER, K. A., HEIJMANS, M. M. P. D., HENRY, G. H. R., et al. 2018 ‘Tundra Trait Team: A database of plant traits spanning the tundra biome’ Global Ecology and Biogeography 27(12), 1402-1411   https://doi.org/10.1111/geb.12821

BRUELHEIDE, H., DENGLER, J., PURSCHKE, O., LENOIR, J., JIMÉNEZ-ALFARO, B., HENNEKENS, S. M., BOTTA-DUKÁT, Z., CHYTRÝ, M., FIELD, R., JANSEN, F., KATTGE, J., PILLAR, V. D., SCHRODT, F., MAHECHA, M. D., PEET, R. K., SANDEL, B., VAN BODEGOM, B., ALTMAN, J., ALVAREZ DAVILA, E., ARFIN KHAN, M. A. S., ATTORRE, F., AUBIN, I., BARALOTO, C., BARROSO, J. C., BAUTERS, M., BERGMEIER, E., BIURRUN, I., BJORKMAN, A. D., BLONDER, B., CARNI, A., CAYUELA, L., CERŃY, T., CORNELISSEN, J. H. C., CRAVEN, D., DAINESE, M., DERROIRE, G., DE SANCTIS, M., DIAZ, S., DOLEŽAL, I., FARFAN-RIOS, W., FELDPAUSCH, T. R., FENTON, N. J., GARNIER, E., GUERIN, G. R., GUTIÉRREZ, A. G., HAIDER, S., HATTAB, T., HENRY, G. H. R., et al. 2018 ‘Global trait–environment relationships of plant communities’ Nature Ecology & Evolution 2, 1906–1917

ROBINSON, S. V. J., LOSAPIO, G. and HENRY, G. H. R. 2018 ‘Flower-power: Flower diversity is a stronger predictor of network structure than insect diversity in an Arctic plant–pollinator network’ Ecological Complexity 36, 1-6  https://doi.org/10.1016/j.ecocom.2018.04.005

WALKER, D. A., DANIËLS, F. J. A., MATVEYEVA, N. V., ŠIBÍK, J., WALKER, M. D., BREEN, A. L., DRUCKENMILLER, L. A., RAYNOLDS, M. K., BÜLTMANN, H., HENNEKENS, S., BUCHHORN, M., EPSTEIN, H. E., ERMOKHINA, K., FOSAA, A. M., HEI∂MARSSON, S., HEIM, B., JÓNSDÓTTIR, I. S., KOROLEVA, N., LÉVESQUE, E., MACKENZIE, W. H., HENRY, G. H. R., NILSEN, L., PEET, R., RAZZHIVIN, V., TALBOT, S. S., TELYATNIKOV, M. THANNHEISER, D., WEBBER, P. J. and WIRTH, L. M. 2018 ‘Circumpolar Arctic Vegetation Classification’ Phytocoenologia 48(2), 181-201   DOI: 10.1127/phyto/2017/0192

 

2017

CASSIDY, A. E., CHRISTEN, A. and HENRY, G. H. R. 2017 ‘Impacts of retrogressive thaw slumps on vegetation, soil and net ecosystem exchange of carbon dioxide in the Canadian High Arctic’ Arctic Science 3(2), 179-202, https://doi.org/10.1139/as-2016-0034

PRÉVEY, J., VELLEND, M., RÜGER, N., HOLLISTER, R. D., BJORKMAN, A. D., MEYERS-SMITH, I. H., ELMENDORF, S. C., CLARK, K., COOPER, E. J., ELBERLING, B., FOSAA, A. M., HENRY, G. H. R., HØYE, T., JONSDÓTTIR, I. S., KLANDERUD, K., LÉVESQUE, E., MAURITZ, M., MOLAU, U., NATALI, S. M., OBERBAUER, S. F., PANCHEN, Z., POST, E., RUMPF, S. B., SCHMIDT, N. M., SCHUUR, E. A. G., SEMENCHUK, P. R., TROXLER, T., WELKER, J. M. and RIXEN, C. 2017 ‘Greater temperature sensitivity of plant phenology at colder sites: implications for convergence across northern latitudes’ Global Change Biology 23(7), 2660-2671, https://doi.org/10.1111/gcb.13619

BJORKMAN, A. D., VELLEND, M., FREI, E. and HENRY, G. H. R. 2017 ‘Climate adaptation is not enough: warming does not facilitate success of southern tundra plant populations in the high Arctic’ Global Change Biology 23(4), 1540-1551, https://doi.org/10.1111/gcb.13417

 

2016

BEAMISH, A., NIJLAND, W., EDWARDS, M., COOPS, N. C. and HENRY, G. H. R. 2016 ‘Phenology and vegetation change measurements from true colour digital photography in high Arctic tundra’ Arctic Science 2(2), 33-49, https://doi.org/10.1139/as-2014-0003

CASSIDY, A. E., CHRISTEN, A. and HENRY, G. H. R. 2016 ‘The effect of permafrost disturbance on growing-season carbon-dioxide fluxes in a high Arctic tundra ecosystem’ Biogeosciences 13, 2291-2303

EDWARDS, M. E. and HENRY, G. H. R. 2016 ‘The effects of long-term experimental warming on the structure of three High Arctic plant communities’ Journal of Vegetation Science 27(5), 904-913, https://doi.org/10.1111/jvs.12417

GREYSON-GAITO, C. J., BARBOUR, M. A., RODRIQUES-CABAL, M. A., CRUTSINGER, G. M. and HENRY, G. H. R. 2016 ‘Freedom to move: Arctic caterpillar growth rate increases with access to new willows’ The Canadian Entomologist 148(6), 673-682, https://doi.org/10.4039/tce.2016.22

 

2015

BJORKMAN, A. D., ELMENDORF, S. C., BEAMISH, A. L., VELLEND, M. and HENRY, G. H. R. 2015 ‘Contrasting effects of warming and increased snowfall on Arctic tundra plant phenology over the past two decades’ Global Change Biology 21(12), 4651-4661, https://doi.org/10.1111/gcb.13051

ELMENDORF, S. C., HENRY, G. H. R., HOLLISTER, R. D., FOSAA, A. M., GOULD, W. A., HERMANUTZ, L., HOFGAARD, A., JÓNSDÓTTIRI, I., JORGENSON, J. C., LÉVESQUE, E., MAGNUSSON, B., MOLAU, U., MYERS-SMITH, I. H., OBERBAUER, S. F., RIXEN, C., TWEEDIE, C. E. and WALKER, M. 2015 ‘Experiment, monitoring, and gradient methods used to infer climate change effects on plant communities yield consistent patterns’ Proceedings of the National Academy of Sciences of the United States of America 112(2), 448-452

 

2014

BOULANGER-LAPOINTE, N., LÉVESQUE, E., BOUDREAU, S., HENRY, G. H. R. and SCHMIDT, N. M. 2014 ‘Population structure and dynamics of Arctic willow (Salix arctica) in the High Arctic’ Journal of Biogeography 41(10), 1967-1978, https://doi.org/10.1111/jbi.12350

 

 

 

Winter 2019

GEOB307 Biogeography and Global Change Sections

Biogeographic concepts in understanding responses in ecosystems to environmental change at global, regional, and local scales. Conservation issues such as the loss of biodiversity and endangered species.

Winter 2019

GEOB505 Permafrost Sections

Winter 2019

GEOG311 Urban Environments Sections

The impact of urban development on the natural environment and vice versa. Study of the ecology and metabolism of cities and green urban design, using global and local case studies.

Winter 2019

GEOG497 The Arctic Sections

Physical and biological characteristics of the circumpolar Arctic, emphasizing terrestrial environments and the impacts on and by humans, including: glacial history; climatology; biogeography/ecology of arctic tundra; human-environment interactions, settlement and exploration; and current environmental, social and economic problems.