Publications & Outreach
papers organized by topic here
*Due to copyright restrictions I can't post PDFs of some articles, but I can email you a copy if you like
Links to archived theses are given in the alumni section of the 'people' page
blue=student in Hargreaves lab
Mapping nationally and globally at-risk species to identify hotspots for (and gaps in) conservation
Hardouin, ME, AL Hargreaves.
Proceedings of the Royal Society B. In Press.
Gradients in how long seeds take to germinate could alter global patterns in predation strength
Martin, E, AL Hargreaves.
Journal of Biogeography. 1-13.
Rapid upwards spread of nonnative plants in mountains globally
Iseli, E, C Chisholm, S Haider, T Seipel, Agustina Barrios, AL Hargreaves, 26 authors listed alphabetically, JM Alexander. 2023.
Nature Ecology Evolution. 1-9. media coverage
Warming in the land of the midnight sun: breeding birds may suffer greater heat stress at high- vs. low-Arctic sites
O’Connor, R, A Le Pogam, K Young, O Love, C Cox, G Roy, F Robitaille, K Elliott, AL Hargreaves, E Choy, HG Gilchrist, D Berteaux, A Tam, F Vézina
Proceedings of the Royal Society B. 289 (1981): 20220300.
Effects of species interactions on the potential for evolution at species' range limits
JM Alexander, DZ Atwater, RI Colautti, AL Hargreaves.
Philosophical Transactions of the Royal Society B, 377 (1848): 20210020.
Does pollen limitation limit plant ranges? Evidence and implications
Dawson-Glass, E, AL Hargreaves.
Philosophical Transactions of the Royal Society B, 377 (1846): 20210014.
Think globally, measure locally: the MIREN standardized protocol for monitoring species distributions along elevational gradients
Haider, S, J Lembrechts, K McDougall, A Pauchard, 51 authors listed alphabetically including AL Hargreaves, T Seipel.
Ecology & Evolution. 12(2): e8590.
Biotic interactions are more often important at species' warm vs. cool range-edges
Paquette, A, AL Hargreaves
Ecology Letters. 24(11): 2427-2438. (data & Rcode)
Adaptation across geographic ranges is consistent with strong selection in marginal climates & legacies of range expansion
Bontrager, M, T Usui, JA Lee-Yaw, DN Anstett, HA Branch, AL Hargreaves, CD Muir, AL Angert.
Evolution. 75: 1316-1333
Limited heat tolerance in a cold-adapted seabird: implications of a warming Arctic
Choy, ES, RS O'Connor, HG Gilchrist, AL Hargreaves, OP Love, F Vézina, KH Elliot
Journal of Experimental Biology. 224: jeb242168
Limited heat tolerance in an Arctic passerine: Thermoregulatory implications for cold‐specialized birds in a rapidly warming world
O'Connor, RS, A Le Pogam, KG Young, F Robitaille, ES Choy, OP Love, KH Elliott, AL Hargreaves, D Berteaux, A Tam, F Vézina
Ecology & Evolution. 11: 1609-1619
Clustered vs. catastrophic global vertebrate declines
Leung B, AL Hargreaves, D Greenberg, B McGill, M Dornelas, R Freeman.
Nature. 588: 267-271 (PDF)
There was some interesting debate around our article, that you can read in the matters arising and our responses to them (all published in 2022): Or you can read a much shorter twitter summary here
LPI does not reflect population abundance (its true & this is an important point!) (PDF)
Pay attention to declining populations (agree - requires identifying them which the LPIndex does not) PDF
Don't downplay biodiversity loss (we didn't & its bad enough it doesnt need to be overplayed either) PDF
Baselines shift (good point but using recent data on declines/recoveries is still important) PDF
High conservation priority of range-edge plant populations not matched by habitat protection or research effort
Caissy, P, S Klemet-N’Guessan, R Jackewi, CG Eckert, AL Hargreaves.
Biological Conservation. 249: 108732 (data & Rcode, PDF)
Spatial distribution and conservation hotspots of mammals in Canada
Cameron, V, AL Hargreaves.
FACETS. 5: 692-703
Miniaturizing species distributions to understand evolving range dynamics
Larsen, C, AL Hargreaves.
Ecography. 43: 1625-1638 (short listed for E4 award).
Local adaptation to biotic interactions: a meta-analysis across latitudes
Hargreaves, AL, R Germain, M Bontrager, J Persi, A Angert.
American Naturalist. 195: 395-411 (press release, PDF)
Lasting signature of forest fragmentation
Science. 366: 1196-7. (invited perspectives piece)
Seed predation increases from the Arctic to the Equator and from high to low elevations
Hargreaves, AL, E Suarez, K Mehltreter, I Myers-Smith, S Vanderplank, H Slinn, Y Vargas-Rodriguez,
S Haeussler, S David, J Muñoz, R Almazán-Nuñez, D Loughnan, J Benning, D Moeller, J Brodie, H
Thomas, P Morales.
Science Advances. 5 eaau4403 (data, media coverage)
NOTE: as of 2022 this article is a corrected version of the original. After fixing a mistake in the coding of the response variable in our binomial GLMModels, the latitudinal and elevational declines in seed predation are twice as strong as originally reported.
Narrow entrance of short-tubed Aloe flower facilitates pollen transfer on long sunbird bills
Hargreaves, AL, GT Langston, SD Johnson.
South African Journal of Botany. 124: 23-28.
Local adaptation primes cold-edge populations for range expansion but not warming-induced range shifts Hargreaves, AL & CG Eckert.
Ecology Letters. 22: 78-88. (data & R code, media coverage, PDF, SI)
Thermal tolerance patterns across latitude & elevation
Sunday, J, J Bennett, P Calosi, S Clusella-Trullas, S Gravel, AL Hargreaves, F Leiva, et al.
Philosophical Transactions of the Royal Soc. B. 374.
Expanding, shifting, and shrinking: The impact of global warming on species' elevational distributions Freeman B, J Lee-Yaw, J Sunday, AL Hargreaves.
Global Ecology & Biogeography. 27: 1268-1276. (media coverage, PDF)
Cheptou, PO, AL Hargreaves, D Bonte, H Jacquemyn.
Philosophical Transactions of the Royal Society B. 372 (1712), 20160037. (Corrected refs for Table1)
Local maladaptation reduces expansion load during range expansion
Gilbert KJ, NP Sharp, AL Angert*, GL Conte*, JA Draghi*, F Guillaume*, AL Hargreaves*, R Matthey-Doret*, MC Whitlock.
American Naturalist. 189: 368-380. (summary)
2016 - maternity leave
Fitness declines toward range limits & local adaptation to climate affect dispersal evolution during climate-induced range shifts
Hargreaves, AL, SF Bailey, RA Laird.
Journal of Evolutionary Biology. 28: 1489-1501. (Appendix, data & R code)
High-elevation range limit of an annual herb is neither caused nor reinforced by declining
Hargreaves, AL, JL Weiner, CG Eckert.
Journal of Ecology. 103: 572-584. (data)
Are species' range limits simply niche limits writ large? A review of transplant experiments beyond the range
Hargreaves, AL, KE Samis, CG Eckert.
American Naturalist. 183: 175-183. (blog summary, DOI, Appendices, data)
Evolution of dispersal and mating systems along geographic gradients: implications for shifting ranges.
Hargreaves, AL & CG Eckert.
Functional Ecology. 28: 5-21. (summary)
2012 and earlier
Floral traits mediate the vulnerability of aloes to pollen theft and inefficient pollination by bees.
Hargreaves, AL, LD Harder & SD Johnson. 2012.
Annals of Botany. 109: 761-772. (PDF)
Concentrations of 17 elements, including mercury, in the tissues, food and abiotic environment of Arctic shorebirds.
Hargreaves, AL, DP Whiteside & G Gilchrist. 2011.
Science of the Total Environment. 409: 3757-3770. (DOI, PDF, Appendices)
Native pollen thieves reduce the reproductive success of a hermaphroditic plant, Aloe maculata.
Hargreaves, AL, LD Harder & SD Johnson. 2010.
Ecology 91:1693-1703. (PDF)
Concentrations of 17 elements, including mercury, and their relationship to fitness measures in arctic shorebirds and their eggs.
Hargreaves, AL, DP Whiteside & G Gilchrist. 2010.
Science of the Total Environment 408: 3153-3161. (DOI, PDF, Appendix)
Consumptive emasculation: the ecological and evolutionary consequences of pollen theft.
Hargreaves, AL, LD Harder & SD Johnson. 2009.
Biological Reviews 84: 259-276. (DOI, PDF)
Aloe inconspicua: the first record of an exclusively insect-pollinated aloe.
Hargreaves, AL, LD Harder & SD Johnson. 2008.
South African Journal of Botany 74: 606-612. (PDF)
Empty flowers as a pollination-enhancement strategy.
Bailey, SF, AL Hargreaves, SD Hechtenthal, RA Laird, TM Latty, TG Reid, AC Teucher & JR Tindall. 2007.
Evolutionary Ecology Research 9: 1245-1262. (PDF)
Dark, bitter-tasting nectar functions as a filter of flower visitors in a bird-pollinated plant.
Johnson, SD, AL Hargreaves & M Brown. 2006.
Ecology 87: 2709-2716. (PDF)
Do floral syndromes predict specialization in plant pollination systems? An experimental test in an "ornithophilous" African Protea.
Hargreaves, AL, SD Johnson & E Nol. 2004.
Oecologia 140: 295-301. (PDF)
Popular science & outreach
Selected outreach talks
2020. Liars cheaters & thieves: the hidden side of pollination. Lake OHara National Park talk series
2019. The Future of Nature. McGill annual Mini-Science evening lecture series. (recorded talk).
2018. Exploring Nature's Diversity (with lessons for our daily lives). McGill Mini-Science (watch the talk)
2015. Fortress flower: floral defenses are way cool because.... Beatty Biodiversity Museum. (watch talk)
Selected popular science writing
2021. Greenberg, D, AL Hargreaves, A Mooers, B Leung. 2021. Conservation hope: Many wildlife species
can recover if given a chance. The Conversation.
2020. Beyond species: How will global change affect species interactions? Alpine Club of Canada State of the Mountains Report. p25
2019. Arctic-To-Equator experiment... Summary of article eaau4403 for ScienceTrends. (read here)
2014. Why stop there? guest blog post for ecoevoevoeco blog (read post).
2012. article re PhD research for Friends of Fishcreek (Provincial Park) July newsletter.
2008. Conserving Alberta’s amphibians. Wild Lands Advocate 16: 14-15. (read article)
Articles in the Calgary Zoo's monthly newsletter, What's New at the Zoo.
Jan 2009. Meet Ghana's amphibians. (article, pg 8)
Nov 2008. Chasing shorebirds in the arctic. (article, pg 5).
Mar 2008. Arctic Ho! Researcher heads north to study shorebirds.
Jan 2008. It's all about instinct: studying northern leopard frogs.
2004. Banding of saw-whet owls at the Oliver Centre. Orchid (Journal of the Peterborough Field Naturalists) vol 50. (reproduced on pg 11 of the Trent Oliver Property Annual Report)