Lawrence D. Harder - Publications

University of Calgary, Calgary, Alberta, Canada 

90 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2016 O'Meara BC, Smith SD, Armbruster WS, Harder LD, Hardy CR, Hileman LC, Hufford L, Litt A, Magallón S, Smith SA, Stevens PF, Fenster CB, Diggle PK. Non-equilibrium dynamics and floral trait interactions shape extant angiosperm diversity. Proceedings. Biological Sciences / the Royal Society. 283. PMID 27147092 DOI: 10.1098/rspb.2015.2304  1
2016 Harder LD, Aizen MA, Richards SA. The population ecology of male gametophytes: the link between pollination and seed production. Ecology Letters. PMID 26970246 DOI: 10.1111/ele.12596  1
2016 Harder LD, Aizen MA, Richards SA, Joseph MA, Busch JW. Diverse ecological relations of male gametophyte populations in stylar environments. American Journal of Botany. PMID 26933012 DOI: 10.3732/ajb.1500269  1
2016 Garibaldi LA, Aizen MA, Cunningham SA, Harder LD, Klein AM. Incremental contribution of pollination and other ecosystem services to agricultural productivity: Effects of service quantity and quality Pollination Services to Agriculture: Sustaining and Enhancing a Key Ecosystem Service. 33-42. DOI: 10.4324/9781315696355  1
2015 Schreiber SJ, Rosenheim JA, Williams NW, Harder LD. Evolutionary and ecological consequences of multiscale variation in pollen receipt for seed production. The American Naturalist. 185: E14-29. PMID 25560562 DOI: 10.1086/678982  1
2015 Fox JW, Harder LD. Using a "time machine" to test for local adaptation of aquatic microbes to temporal and spatial environmental variation. Evolution; International Journal of Organic Evolution. 69: 136-45. PMID 25308325 DOI: 10.1111/evo.12543  1
2015 Ida TY, Harder LD, Kudo G. The consequences of demand-driven seed provisioning for sexual differences in reproductive investment in Thalictrum occidentale (Ranunculaceae) Journal of Ecology. 103: 269-280. DOI: 10.1111/1365-2745.12330  1
2014 Liao WJ, Harder LD. Consequences of multiple inflorescences and clonality for pollinator behavior and plant mating. The American Naturalist. 184: 580-92. PMID 25325743 DOI: 10.1086/678117  1
2014 Aizen MA, Morales CL, Vázquez DP, Garibaldi LA, Sáez A, Harder LD. When mutualism goes bad: Density-dependent impacts of introduced bees on plant reproduction New Phytologist. 204: 322-328. DOI: 10.1111/nph.12924  1
2013 Hobbhahn N, Johnson SD, Bytebier B, Yeung EC, Harder LD. The evolution of floral nectaries in Disa (Orchidaceae: Disinae): recapitulation or diversifying innovation? Annals of Botany. 112: 1303-19. PMID 23997231 DOI: 10.1093/aob/mct197  1
2013 Ida TY, Harder LD, Kudo G. Demand-driven resource investment in annual seed production by a perennial angiosperm precludes resource limitation. Ecology. 94: 51-61. PMID 23600240 DOI: 10.1890/12-0619.1  1
2013 Garibaldi LA, Steffan-Dewenter I, Winfree R, Aizen MA, Bommarco R, Cunningham SA, Kremen C, Carvalheiro LG, Harder LD, Afik O, Bartomeus I, Benjamin F, Boreux V, Cariveau D, Chacoff NP, et al. Wild pollinators enhance fruit set of crops regardless of honey bee abundance. Science (New York, N.Y.). 339: 1608-11. PMID 23449997 DOI: 10.1126/science.1230200  1
2013 Harder LD, Prusinkiewicz P. The interplay between inflorescence development and function as the crucible of architectural diversity. Annals of Botany. 112: 1477-93. PMID 23243190 DOI: 10.1093/aob/mcs252  1
2013 Morales CL, Traveset A, Harder LD. Sterile flowers increase pollinator attraction and promote female success in the Mediterranean herb Leopoldia comosa. Annals of Botany. 111: 103-11. PMID 23131298 DOI: 10.1093/aob/mcs243  1
2012 Harder LD, Hobbhahn N, Richards SA. How depressed? Estimates of inbreeding effects during seed development depend on reproductive conditions. Evolution; International Journal of Organic Evolution. 66: 1375-86. PMID 22519778 DOI: 10.1111/j.1558-5646.2011.01515.x  1
2012 Hargreaves AL, Harder LD, Johnson SD. Floral traits mediate the vulnerability of aloes to pollen theft and inefficient pollination by bees. Annals of Botany. 109: 761-72. PMID 22278414 DOI: 10.1093/aob/mcr324  1
2012 Internicola AI, Harder LD. Bumble-bee learning selects for both early and long flowering in food-deceptive plants. Proceedings. Biological Sciences / the Royal Society. 279: 1538-43. PMID 22090384 DOI: 10.1098/rspb.2011.1849  1
2012 Ida TY, Harder LD, Kudo G. Effects of defoliation and shading on the physiological cost of reproduction in silky locoweed Oxytropis sericea. Annals of Botany. 109: 237-46. PMID 22021817 DOI: 10.1093/aob/mcr273  1
2012 Ishii HS, Harder LD. Phenological associations of within- and among-plant variation in gender with floral morphology and integration in protandrous Delphinium glaucum Journal of Ecology. 100: 1029-1038. DOI: 10.1111/j.1365-2745.2012.01976.x  1
2011 Garibaldi LA, Aizen MA, Klein AM, Cunningham SA, Harder LD. Global growth and stability of agricultural yield decrease with pollinator dependence. Proceedings of the National Academy of Sciences of the United States of America. 108: 5909-14. PMID 21422295 DOI: 10.1073/pnas.1012431108  1
2011 Johnson SD, Burgoyne PM, Harder LD, Dötterl S. Mammal pollinators lured by the scent of a parasitic plant. Proceedings. Biological Sciences / the Royal Society. 278: 2303-10. PMID 21208953 DOI: 10.1098/rspb.2010.2175  1
2010 Hargreaves AL, Harder LD, Johnson SD. Native pollen thieves reduce the reproductive success of a hermaphroditic plant, Aloe maculata. Ecology. 91: 1693-703. PMID 20583711 DOI: 10.1890/09-0792.1  1
2010 Harder LD, Aizen MA. Floral adaptation and diversification under pollen limitation. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 365: 529-43. PMID 20047878 DOI: 10.1098/rstb.2009.0226  1
2009 Aizen MA, Harder LD. Geographic variation in the growth of domesticated honey bee stocks: disease or economics? Communicative & Integrative Biology. 2: 464-6. PMID 20195451 DOI: 10.4161/cib.2.6.9258  1
2009 Richards SA, Williams NM, Harder LD. Variation in pollination: causes and consequences for plant reproduction. The American Naturalist. 174: 382-98. PMID 19627226 DOI: 10.1086/603626  1
2009 Harder LD. Questions about floral (dis)integration. The New Phytologist. 183: 247-8. PMID 19594701 DOI: 10.1111/j.1469-8137.2009.02881.x  1
2009 Harder LD, Johnson SD. Darwin's beautiful contrivances: evolutionary and functional evidence for floral adaptation. The New Phytologist. 183: 530-45. PMID 19552694 DOI: 10.1111/j.1469-8137.2009.02914.x  1
2009 Aizen MA, Harder LD. The global stock of domesticated honey bees is growing slower than agricultural demand for pollination. Current Biology : Cb. 19: 915-8. PMID 19427214 DOI: 10.1016/j.cub.2009.03.071  1
2009 Hargreaves AL, Harder LD, Johnson SD. Consumptive emasculation: the ecological and evolutionary consequences of pollen theft. Biological Reviews of the Cambridge Philosophical Society. 84: 259-76. PMID 19382932 DOI: 10.1111/j.1469-185X.2008.00074.x  1
2008 Harder LD, Richards SA, Routley MB. Effects of reproductive compensation, gamete discounting and reproductive assurance on mating-system diversity in hermaphrodites. Evolution; International Journal of Organic Evolution. 62: 157-72. PMID 18067573 DOI: 10.1111/j.1558-5646.2007.00272.x  1
2008 Harder LD, Johnson SD. Function and evolution of aggregated pollen in angiosperms International Journal of Plant Sciences. 169: 59-78. DOI: 10.1086/523364  1
2008 Hargreaves AL, Harder LD, Johnson SD. Aloe inconspicua: The first record of an exclusively insect-pollinated aloe South African Journal of Botany. 74: 606-612. DOI: 10.1016/j.sajb.2008.02.009  1
2007 Greenway CA, Harder LD. Variation in ovule and seed size and associated size-number trade-offs in angiosperms. American Journal of Botany. 94: 840-6. PMID 21636453 DOI: 10.3732/ajb.94.5.840  1
2007 Prusinkiewicz P, Erasmus Y, Lane B, Harder LD, Coen E. Evolution and development of inflorescence architectures. Science (New York, N.Y.). 316: 1452-6. PMID 17525303 DOI: 10.1126/science.1140429  1
2007 Aizen MA, Harder LD. Expanding the limits of the pollen-limitation concept: effects of pollen quantity and quality. Ecology. 88: 271-81. PMID 17479745 DOI: 10.1890/06-1017  1
2007 Borkent CJ, Harder LD. Flies (Diptera) as pollinators of two dioecious plants: Behaviour and implications for plant mating Canadian Entomologist. 139: 235-246.  1
2006 Jordan CY, Harder LD. Manipulation of bee behavior by inflorescence architecture and its consequences for plant mating. The American Naturalist. 167: 496-509. PMID 16670993 DOI: 10.1086/501142  1
2006 Ishii HS, Harder LD. The size of individual Delphinium flowers and the opportunity for geitonogamous pollination Functional Ecology. 20: 1115-1123. DOI: 10.1111/j.1365-2435.2006.01181.x  1
2005 Friedman J, Harder LD. Functional associations of floret and inflorescence traits among grass species. American Journal of Botany. 92: 1862-70. PMID 21646103 DOI: 10.3732/ajb.92.11.1862  1
2005 Harder LD, Johnson SD. Adaptive plasticity of floral display size in animal-pollinated plants. Proceedings. Biological Sciences / the Royal Society. 272: 2651-7. PMID 16321788 DOI: 10.1098/rspb.2005.3268  1
2005 Barrett SC, Harder LD. The evolution of polymorphic sexual systems in daffodils (Narcissus). The New Phytologist. 165: 45-53. PMID 15720619 DOI: 10.1111/j.1469-8137.2004.01183.x  1
2005 Massinga PH, Johnson SD, Harder LD. Heteromorphic incompatibility and efficiency of pollination in two distylous Pentanisia species (Rubiaceae). Annals of Botany. 95: 389-99. PMID 15596454 DOI: 10.1093/aob/mci040  1
2005 Kudo G, Harder LD. Floral and inflorescence effects on variation in pollen removal and seed production among six legume species Functional Ecology. 19: 245-254. DOI: 10.1111/j.1365-2435.2005.00961.x  1
2005 Johnson SD, Neal PR, Harder LD. Pollen fates and the limits on male reproductive success in an orchid population Biological Journal of the Linnean Society. 86: 175-190. DOI: 10.1111/j.1095-8312.2005.00541.x  1
2005 Suso MJ, Harder L, Moreno MT, Maalouf F. New strategies for increasing heterozygosity in crops: Vicia faba mating system as a study case Euphytica. 143: 51-65. DOI: 10.1007/s10681-005-2526-y  1
2004 Barrett SC, Harder LD, Cole WW. Correlated evolution of floral morphology and mating-type frequencies in a sexually polymorphic plant. Evolution; International Journal of Organic Evolution. 58: 964-75. PMID 15212378  1
2004 Harder LD, Jordan CY, Gross WE, Routley MB. Beyond floricentrism: The pollination function of inflorescences Plant Species Biology. 19: 137-148. DOI: 10.1111/j.1442-1984.2004.00110.x  1
2004 Friedman J, Harder LD. Inflorescence architecture and wind pollination in six grass species Functional Ecology. 18: 851-860. DOI: 10.1111/j.0269-8463.2004.00921.x  1
2004 Harder LD, Aizen MA. The functional significance of synchronous protandry in Alstroemeria aurea Functional Ecology. 18: 467-474. DOI: 10.1111/j.0269-8463.2004.00859.x  1
2003 Wilson WG, Harder LD. Reproductive uncertainty and the relative competitiveness of simultaneous hermaphroditism versus dioecy. The American Naturalist. 162: 220-41. PMID 12858266 DOI: 10.1086/376584  1
2001 Walker-Larsen J, Harder LD. Vestigial organs as opportunities for functional innovation: the example of the Penstemon staminode. Evolution; International Journal of Organic Evolution. 55: 477-87. PMID 11327156  1
2001 Sarkissian TS, Harder LD. Direct and indirect responses to selection on pollen size in Brassica rapa L. Journal of Evolutionary Biology. 14: 456-468. DOI: 10.1046/j.1420-9101.2001.00285.x  1
2001 Sarkissian TS, Barrett SCH, Harder LD. Gender variation in Sagittaria latifolia (Alismataceae): Is size all that matters? Ecology. 82: 360-373.  1
2000 Harder LD, Barrett SC, Cole WW. The mating consequences of sexual segregation within inflorescences of flowering plants. Proceedings. Biological Sciences / the Royal Society. 267: 315-20. PMID 10722210 DOI: 10.1098/rspb.2000.1002  1
2000 Walker-Larsen J, Harder LD. The evolution of staminodes in angiosperms: Patterns of stamen reduction, loss, and, functional re-invention American Journal of Botany. 87: 1367-1384.  1
1999 Worley AC, Harder LD. Consequences of preformation for dynamic resource allocation by a carnivorous herb, Pinguicula vulgaris (Lentibulariaceae). American Journal of Botany. 86: 1136-45. PMID 10449393  1
1998 Harder LD, Wilson WG. A clarification of pollen discounting and its joint effects with inbreeding depression on mating system evolution. The American Naturalist. 152: 684-95. PMID 18811343 DOI: 10.1086/286199  1
1998 Harder LD. Pollen-size comparisons among animal-pollinated angiosperms with different pollination characteristics Biological Journal of the Linnean Society. 64: 513-525. DOI: 10.1006/bijl.1998.0235  1
1998 Harder LD, Wilson WG. Theoretical consequences of heterogeneous transport conditions for pollen dispersal by animals Ecology. 79: 2789-2807.  1
1997 Rasheed SA, Harder LD. Foraging currencies for non-energetic resources: pollen collection by bumblebees Animal Behaviour. 54: 911-26. PMID 9344444 DOI: 10.1006/anbe.1997.0487  1
1997 Rasheed SA, Harder LD. Economic motivation for plant species preferences of pollen-collecting bumble bees Ecological Entomology. 22: 209-219.  1
1997 Harder LD, Wilson WG. Theoretical perspectives on pollination Acta Horticulturae. 437: 83-101.  1
1996 Barrett SC, Harder LD. Ecology and evolution of plant mating. Trends in Ecology & Evolution. 11: 73-9. PMID 21237765 DOI: 10.1016/0169-5347(96)81046-9  1
1996 Worley AC, Harder LD. Size-dependent resource allocation and costs of reproduction in Pinguicula vulgaris (Lentibulariaceae) Journal of Ecology. 84: 195-206.  1
1996 Pritchard G, Harder LD, Mutch RA. Development of aquatic insect eggs in relation to temperature and strategies for dealing with different thermal environments Biological Journal of the Linnean Society. 58: 221-244.  1
1996 Barrett SCH, Harder LD, Worley AG. The comparative biology of pollination and mating in flowering plants Philosophical Transactions of the Royal Society B: Biological Sciences. 351: 1271-1280.  1
1995 Owen RE, Harder LD. Heritable allometric variation in bumble bees: Opportunities for colony-level selection of foraging ability Journal of Evolutionary Biology. 8: 725-738. DOI: 10.1046/j.1420-9101.1995.8060725.x  1
1995 Harder LD, Barrett SCH. Mating cost of large floral displays in hermaphrodite plants Nature. 373: 512-515. DOI: 10.1038/373512a0  1
1995 Vonhof MJ, Harder LD. Size-number trade-offs and pollen production by papilionaceous legumes American Journal of Botany. 82: 230-238.  1
1995 Proctor HC, Harder LD. Effect of pollination success on floral longevity in the orchid Calypso bulbosa (Orchidaceae) American Journal of Botany. 82: 1131-1136.  1
1994 Harder LD, Wilson WG. Floral evolution and male reproductive success: Optimal dispensing schedules for pollen dispersal by animal-pollinated plants Evolutionary Ecology. 8: 542-559. DOI: 10.1007/BF01238257  1
1994 Barrett SCH, Harder LD, Cole WW. Effects of flower number and position on self-fertilization in experimental populations of Eichhornia paniculata (Pontederiaceae) Functional Ecology. 8: 526-535.  1
1994 Proctor HC, Harder LD. Pollen load, capsule weight, and seed production in three orchid species Canadian Journal of Botany. 72: 249-255.  1
1994 Harder LD, Barclay RMR. The functional significance of poricidal anthers and buzz pollination: Controlled pollen removal from Dodecatheon Functional Ecology. 8: 509-517.  1
1993 Harder LD, Barrett SCH. Pollen removal from tristylous Pontederia cordata: effects of anther position and pollinator specialization Ecology. 74: 1059-1072.  1
1993 Harder LD, Cruzan MB, Thomson JD. Unilateral incompatibility and the effects of interspecific pollination for Erythronium americanum and Erythronium albidum (Liliaceae) Canadian Journal of Botany. 71: 353-358.  1
1992 Harder LD, Barrett SCH. The energy cost of bee pollination for Pontederia cordata (Pontederiaceae) Functional Ecology. 6: 226-233.  1
1992 Barrett SCH, Harder LD. Floral variation in Eichhornia paniculata (Spreng.) Solms (Pontederiaceae). II. Effects of development and environment on the formation of selfing flowers Journal of Evolutionary Biology. 5: 83-107.  1
1990 Harder LD. Behavioral responses by bumble bees to variation in pollen availability Oecologia. 85: 41-47. DOI: 10.1007/BF00317341  1
1990 Harder LD, Cruzan MB. An evaluation of the physiological and evolutionary influences of inflorescence size and flower depth on nectar production Functional Ecology. 4: 559-572.  1
1990 Harder LD. Pollen removal by bumble bees and its implications for pollen dispersal Ecology. 71: 1110-1125.  1
1989 Harder LD, Thomson JD. Evolutionary options for maximizing pollen dispersal of animal- pollinated plants American Naturalist. 133: 323-344. DOI: 10.1086/284922  1
1988 Harder LD. Choice of individual flowers by bumble bees: interaction of morphology, time and energy Behaviour. 104: 60-77. DOI: 10.1163/156853988X00601  1
1988 Laverty TM, Harder LD. The bumble bees of eastern Canada Canadian Entomologist. 120: 965-967.  1
1987 Thomson JD, Peterson SC, Harder LD. Response of traplining bumble bees to competition experiments: shifts in feeding location and efficiency Oecologia. 71: 295-300. DOI: 10.1007/BF00377298  1
1986 Harder LD. Effects of nectar concentration and flower depth on flower handling efficiency of bumble bees Oecologia. 69: 309-315. DOI: 10.1007/BF00377639  1
1985 Harder LD, Thomson JD, Cruzan MB, Unnasch RS. Sexual reproduction and variation in floral morphology in an ephemeral vernal lily, Eyythronium americanum Oecologia. 67: 286-291. DOI: 10.1007/BF00384301  1
1985 Harder LD. Morphology as a predictor of flower choice by bumble bees. Ecology. 66: 198-210.  1
1984 Montgomerie RD, Eadie JM, Harder LD. What do foraging hummingbirds maximize? Oecologia. 63: 357-363. DOI: 10.1007/BF00390665  1
1983 Harder LD. Flower handling efficiency of bumble bees: morphological aspects of probing time Oecologia. 57: 274-280. DOI: 10.1007/BF00379591  1
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