Assessing the genetic basis and functional significance of flower form variation in Solanum rostratum (Solanaceae)
PI: Dr Mario Vallejo-Marin
Funded by: Royal Society
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Dr Mario Vallejo-Marin
Associate Professor
Biological and Environmental Sciences University of Stirling, Stirling, FK9 4LA
Contact details
- Email mario.vallejo@stir.ac.uk
- Telephone+44 (0)1786 467822
- My personal webpage
ORCID 
0000-0002-5663-8025
About me
I was born in Mexico City. I studied Biology at the National Autonomous University of Mexico (UNAM) at the Faculty of Sciences and did my undergrad thesis on the evolutionary ecology of seed predation at the Ecology Institute under the supervision of Prof. Cesar Dominguez Perez-Tejada. I studied in UCLA, and a PhD at Duke University with Prof. Mark D. Rausher where I studied self-incompatibility and the evolution of plant reproductive strategies. I did a two-year postdoctoral fellowship at the University of Toronto with Prof. Spencer C. H. Barrett studying the evolution of plant reproduction. Since 2008, I lead my own lab at the University of Stirling where I study plant evolution, speciation and buzz pollination.
Vallejo-Marin Lab webpage: http://www.plant-evolution.org Follow me on Twitter: @nicrodemo //
Award
National System of Researchers, Level II. CONACyT, Mexico
https://www.conacyt.gob.mx/…e-investigadores
Distinction recognising quality and prestige of scientific contributions to Mexican researchers.
National System of Researchers, Level II. CONACyT, Mexico
https://www.conacyt.gob.mx/…e-investigadores
Distinction recognising quality and prestige of scientific contributions to Mexican researchers.
Other Academic Activities
Panel Member for the National Agency for Research (ANR) France
Professional Career
Associate Editor for Annals of Botany, Plants
Review Editor for Journal of Evolutionary Biology
Associate Editor for Evolution
Research
I am interested in determining the role of adaptation in the evolution of plant reproductive strategies. Reproductive strategies determine patterns of gene transfer, and thus are tightly linked to the reproductive success and evolutionary potential of plant populations. Managing and conserving natural populations requires an integrative approach including the study of both ecological interactions and evolutionary dynamics. My goal is to continue my research of the ecology and evolution of reproductive strategies, and expand it to explore the role of adaptive evolution on the origin and maintenance of population differentiation and, ultimately, speciation.I am interested in determining the role of adaptation in the evolution of plant reproductive strategies. Reproductive strategies determine patterns of gene transfer, and thus are tightly linked to the reproductive success and evolutionary potential of plant populations. Managing and conserving natural populations requires an integrative approach including the study of both ecological interactions and evolutionary dynamics. My goal is to continue my research of the ecology and evolution of reproductive strategies, and expand it to explore the role of adaptive evolution on the origin and maintenance of population differentiation and, ultimately, speciation.
Projects
Genetic diversity and ecological success of the invasive riparian plant Mumulus guttatus
PI: Dr Mario Vallejo-Marin
Funded by: Natural Environment Research Council
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Carnegie Travel Award
PI: Dr Mario Vallejo-Marin
Funded by: The Carnegie Trust
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RSE - NSFC Joint Project in field of Plant Evolutionary Ecology
PI: Dr Mario Vallejo-Marin
Funded by: The Royal Society of Edinburgh
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Outputs
Review
Runemark A, Vallejo-Marín M & Meier JI (2019) Eukaryote hybrid genomes. PLoS Genetics, 15 (11), Art. No.: e1008404. https://doi.org/10.1371/journal.pgen.1008404
Article
Buzz pollination: studying bee vibrations on flowers
Vallejo-Marin M (2019) Buzz pollination: studying bee vibrations on flowers. New Phytologist, 224 (3), pp. 1068-1074. https://doi.org/10.1111/nph.15666
Article
The case for the continued use of the genus name Mimulus for all monkeyflowers
Lowry DB, Sobel JM, Angert AL, Ashman T, Baker RL, Blackman BK, Brandvain Y, Byers KJRP, Cooley AM, Coughlan JM, Dudash MR, Fenster CB, Ferris KG, Fishman L & Vallejo-Marín M (2019) The case for the continued use of the genus name Mimulus for all monkeyflowers. Taxon. https://doi.org/10.1002/tax.12122
Article
A test of the evolution of increased competitive ability in two invaded regions
Rotter MC, Vallejo-Marin M & Holeski LM (2019) A test of the evolution of increased competitive ability in two invaded regions. Evolutionary Ecology, 33 (5), pp. 713-735. https://doi.org/10.1007/s10682-019-10004-5
Article
Riverbanks as battlegrounds: why does the abundance of native and invasive plants vary?
Pattison Z, Vallejo-Marín M & Willby N (2019) Riverbanks as battlegrounds: why does the abundance of native and invasive plants vary?. Ecosystems, 22 (3), pp. 578-586. https://doi.org/10.1007/s10021-018-0288-3
Article
Does body size predict the buzz-pollination frequencies used by bees?
De Luca PA, Buchmann S, Galen C, Mason AC & Vallejo‐Marín M (2019) Does body size predict the buzz-pollination frequencies used by bees?. Ecology and Evolution, 9 (8), pp. 4875-4887. https://doi.org/10.1002/ece3.5092
Article
Arroyo-Correa B, Beattie C & Vallejo-Marin M (2019) Bee and floral traits affect the characteristics of the vibrations experienced by flowers during buzz pollination. Journal of Experimental Biology, 222 (4), Art. No.: jeb198176. https://doi.org/10.1242/jeb.198176
Commentary
Evolutionary tinkering allows buzz pollinated plants to escape from an adaptive dead-end
Vallejo-Marin M (2019) Evolutionary tinkering allows buzz pollinated plants to escape from an adaptive dead-end. Commentary on: Dellinger AS, Chartier M, Fernandez-Fernandez D, Penneys DS, Alvear M,Almeda F, Michelangeli FA, Staedler Y, Armbruster WS, Schonenberger J. 2019. Beyond buzz-pollination–departures from an adaptive plateau lead to new pollination syndromes. New Phytologist 221: 1136–1149.. The New Phytologist, 221 (2), pp. 618-620. https://doi.org/10.1111/nph.15474
Article
Carrillo-Reche J, Vallejo-Marín M & Quilliam R (2018) Quantifying the potential of 'on-farm' seed priming to increase crop performance in developing countries. A meta-analysis. Agronomy for Sustainable Development, 38 (6), Art. No.: 64. https://doi.org/10.1007/s13593-018-0536-0
Article
Baduel P, Bray S, Vallejo-Marin M, Kolář F & Yant L (2018) The "Polyploid Hop": shifting challenges and opportunities over the evolutionary lifespan of genome duplications. Frontiers in Ecology and Evolution, 6, Art. No.: 117. https://doi.org/10.3389/fevo.2018.00117
Article
Pantoja PO, Paine CET & Vallejo-Marín M (2018) Natural selection and outbreeding depression suggest adaptive differentiation in the invasive range of a clonal plant. Proceedings of the Royal Society B: Biological Sciences, 285 (1882), Art. No.: 20181091. https://doi.org/10.1098/rspb.2018.1091
Commentary
Searching for the genetic footprint of ancient and recent hybridization
Vallejo-Marín M (2018) Searching for the genetic footprint of ancient and recent hybridization. Commentary on: Jordan, C. Y., Lohse, K., Turner, F., Thomson, M., Gharbi, K., & Ennos, R.A. (2018). Maintaining their genetic distance: Little evidence forintrogression between widely hybridising species of Geum with con-trasting mating systems. Molecular Ecology, 27, 1214–1228.. Molecular Ecology, 27 (5), pp. 1095-1097. https://doi.org/10.1111/mec.14444
Article
Pantoja PO, Porcar V, Puzey JR & Vallejo-Marin M (2017) Genetic variation and clonal diversity in introduced populations of Mimulus guttatus assessed by genotyping at 62 single nucleotide polymorphism loci. Plant Ecology and Diversity, 10 (1), pp. 5-15. https://doi.org/10.1080/17550874.2017.1287785
Article
Neonicotinoid pesticide limits improvement in buzz pollination by bumblebees
Whitehorn PR, Wallace C & Vallejo-Marin M (2017) Neonicotinoid pesticide limits improvement in buzz pollination by bumblebees. Scientific Reports, 7 (1), Art. No.: 15562. https://doi.org/10.1038/s41598-017-14660-x
Article
Spectral Characteristics for Estimation Heavy Metals Accumulation in Wheat Plants and Grain
Amer M, Tyler A, Fouda T, Hunter P, Elmetwalli AMH, Wilson C & Vallejo-Marin M (2017) Spectral Characteristics for Estimation Heavy Metals Accumulation in Wheat Plants and Grain. Scientific Papers Series: Management, Economic Engineering and Rural Development, 17 (3), pp. 47-55. http://managementjournal.usamv.ro/index.php/scientific-papers/1451-spectral-characteristics-for-estimation-heavy-metals-accumulation-in-wheat-plants-and-grain-1451
Article
Vallejo-Marin M, Quenu M, Ritchie S & Meeus S (2017) Partial interfertility between independently originated populations of the neo-allopolyploid Mimulus peregrinus [Interfertility of independently originated allopolyploid populations]. Plant Systematics and Evolution, 303 (8), pp. 1081-1092. https://doi.org/10.1007/s00606-017-1426-7
Article
Recent autopolyploidization in a naturalized population of Mimulus guttatus (Phrymaceae)
Porcar V, Silva JL, Meeus S, Higgins JD & Vallejo-Marin M (2017) Recent autopolyploidization in a naturalized population of Mimulus guttatus (Phrymaceae). Botanical Journal of the Linnean Society, 185 (2), pp. 189-207, Art. No.: box052. https://doi.org/10.1093/botlinnean/box052
Article
Edger PP, Smith R, McKain MR, Cooley AM, Vallejo-Marin M, Yuan Y, Bewick AJ, Ji L, Platts AE, Bowman MJ, Childs KL, Washburn JD, Schmitz RJ, Smith GD, Pires JC & Puzey JR (2017) Subgenome Dominance in an Interspecific Hybrid, Synthetic Allopolyploid, and a 140-Year-Old Naturally Established Neo-Allopolyploid Monkeyflower. Plant Cell, 29 (9), pp. 2150-2167. https://doi.org/10.1105/tpc.17.00010
Newspaper Article
Il y a 140 millions d’années, la toute première fleur ressemblait à un magnolia
Vallejo-Marin M (2017) Il y a 140 millions d’années, la toute première fleur ressemblait à un magnolia. The Conversation. 07.09.2017. https://theconversation.com/il-y-a-140-millions-dannees-la-toute-premiere-fleur-ressemblait-a-un-magnolia-82928
Newspaper Article
Revealed: the first ever flower, 140m years ago, looked like a magnolia
Vallejo-Marin M (2017) Revealed: the first ever flower, 140m years ago, looked like a magnolia. The Conversation. 01.08.2017. https://theconversation.com/revealed-the-first-ever-flower-140m-years-ago-looked-like-a-magnolia-81861
Article
Solis-Montero L & Vallejo-Marin M (2017) Does the morphological fit between flowers and pollinators affect pollen deposition? An experimental test in a buzz-pollinated species with anther dimorphism. Ecology and Evolution, 7 (8), pp. 2706-2715. https://doi.org/10.1002/ece3.2897
Article
Schouppe D, Brys R, Vallejo-Marin M & Jacquemyn H (2017) Geographic variation in floral traits and the capacity of autonomous selfing across allopatric and sympatric populations of two closely related Centaurium species. Scientific Reports, 7, Art. No.: 46410. https://doi.org/10.1038/srep46410
Article
Global biogeography of mating system variation in seed plants
Moeller D, Briscoe Runquist R, Moe AM, Goodwillie C, Cheptou P, Eckert CG, Elle E, Johnston MO, Kalisz S, Ree RH, Sargent RD, Vallejo-Marin M, Winn AA & Geber MA (2017) Global biogeography of mating system variation in seed plants. Ecology Letters, 20 (3), pp. 375-384. https://doi.org/10.1111/ele.12738
Article
Hybridization and hybrid speciation under global change
Vallejo-Marín M & Hiscock SJ (2016) Hybridization and hybrid speciation under global change. New Phytologist, 211 (4), pp. 1170-1187. https://doi.org/10.1111/nph.14004
Article
Vallejo-Marin M, Cooley AM, Lee MYQ, Folmer M, McKain MR & Puzey JR (2016) Strongly asymmetric hybridization barriers shape the origin of a new polyploid species and its hybrid ancestor. American Journal of Botany, 103 (7), pp. 1272-1288. https://doi.org/10.3732/ajb.1500471
Newspaper Article
Hybrid species are on the march – with the help of humans
Vallejo-Marin M (2016) Hybrid species are on the march – with the help of humans. The Conversation. 31.05.2016. https://theconversation.com/hybrid-species-are-on-the-march-with-the-help-of-humans-59642
Article
Morgan T, Whitehorn PR, Lye G & Vallejo-Marin M (2016) Floral sonication is an innate behaviour in bumblebees that can be fine-tuned with experience in manipulating flowers. Journal of Insect Behavior, 29 (2), pp. 233-241. https://doi.org/10.1007/s10905-016-9553-5
Article
Lafon-Placette C, Vallejo-Marín M, Parisod C, Abbott RJ & Köhler C (2016) Current plant speciation research: unravelling the processes and mechanisms behind the evolution of reproductive isolation barriers. New Phytologist, 209 (1), pp. 29-33. https://doi.org/10.1111/nph.13756
Article
High incidence of pollen theft in natural populations of a buzz-pollinated plant
Solis-Montero L, Vergara CH & Vallejo-Marin M (2015) High incidence of pollen theft in natural populations of a buzz-pollinated plant. Arthropod-Plant Interactions, 9 (6), pp. 599-611. https://doi.org/10.1007/s11829-015-9397-5
Article
Vallejo-Marin M, Buggs RJA, Cooley AM & Puzey JR (2015) Speciation by genome duplication: Repeated origins and genomic composition of the recently formed allopolyploid species Mimulus peregrinus. Evolution, 69 (6), pp. 1487-1500. https://doi.org/10.1111/evo.12678
Article
The significance and scope of evolutionary developmental biology: A vision for the 21st century
Moczek AP, Sears KE, Stollewerk A, Wittkopp PJ, Diggle P, Dworkin I, Ledon-Rettig C, Matus DQ, Roth S, Abouheif E, Brown FD, Chiu C, Cohen CS, De Tomaso AW & Vallejo-Marin M (2015) The significance and scope of evolutionary developmental biology: A vision for the 21st century. Evolution and Development, 17 (3), pp. 198-219. https://doi.org/10.1111/ede.12125
Article
Puzey JR & Vallejo-Marin M (2014) Genomics of invasion: Diversity and selection in introduced populations of monkeyflowers (Mimulus guttatus). Molecular Ecology, 23 (18), pp. 4472-4485. https://doi.org/10.1111/mec.12875
Article
Vallejo-Marin M, Walker C, Friston-Reilly P, Solis-Montero L & Igic B (2014) Recurrent modification of floral morphology in heterantherous Solanum reveals a parallel shift in reproductive strategy. Philosophical Transactions B: Biological Sciences, 369 (1649), Art. No.: 20130256. https://doi.org/10.1098/rstb.2013.0256
Article
De Luca PA, Cox DA & Vallejo-Marin M (2014) Comparison of pollination and defensive buzzes in bumblebees indicates species-specific and context-dependent vibrations. Naturwissenschaften, 101 (4), pp. 331-338. https://doi.org/10.1007/s00114-014-1161-7
Article
Rouger R, Vallejo-Marin M & Jump A (2014) Development and cross-species amplification of microsatellite loci for Puccinellia maritima, an important engineer saltmarsh species. Genetics and Molecular Research, 13 (2), pp. 3426-3431. https://doi.org/10.4238/2014.April.30.3
Article
Mating system in Mexican populations of the annual herb Solanum rostratum Dunal (Solanaceae)
Vallejo-Marin M, Solis-Montero L, Souto-Vilaros D & Lee MYQ (2013) Mating system in Mexican populations of the annual herb Solanum rostratum Dunal (Solanaceae). Plant Biology, 15 (6), pp. 948-954. https://doi.org/10.1111/j.1438-8677.2012.00715.x
Article
Zhao J, Solis-Montero L, Lou A & Vallejo-Marin M (2013) Population structure and genetic diversity of native and invasive populations of Solanum rostratum (Solanaceae). PLoS ONE, 8 (11), Art. No.: e79807. https://doi.org/10.1371/journal.pone.0079807
Article
What's the 'buzz' about? The ecology and evolutionary significance of buzz-pollination
De Luca PA & Vallejo-Marin M (2013) What's the 'buzz' about? The ecology and evolutionary significance of buzz-pollination. Current Opinion in Plant Biology, 16 (4), pp. 429-435. https://doi.org/10.1016/j.pbi.2013.05.002
Article
Social learning drives handedness in nectar-robbing bumblebees
Goulson D, Park K, Tinsley MC, Bussiere L & Vallejo-Marin M (2013) Social learning drives handedness in nectar-robbing bumblebees. Behavioral Ecology and Sociobiology, 67 (7), pp. 1141-1150. https://doi.org/10.1007/s00265-013-1539-0
Article
Variability in bumblebee pollination buzzes affects the quantity of pollen released from flowers
De Luca PA, Bussiere L, Souto-Vilaros D, Goulson D, Mason AC & Vallejo-Marin M (2013) Variability in bumblebee pollination buzzes affects the quantity of pollen released from flowers. Oecologia, 172 (3), pp. 805-816. https://doi.org/10.1007/s00442-012-2535-1
Article
Hybridisation and genetic diversity in introduced Mimulus (Phrymaceae)
Vallejo-Marin M & Lye GC (2013) Hybridisation and genetic diversity in introduced Mimulus (Phrymaceae). Heredity, 110 (2), pp. 111-122. https://doi.org/10.1038/hdy.2012.91
Article
Mimulus peregrinus (Phrymaceae): A new British allopolyploid species
Vallejo-Marin M (2012) Mimulus peregrinus (Phrymaceae): A new British allopolyploid species. PhytoKeys, 14, pp. 1-14. http://www.pensoft.net/journals/phytokeys/article/3305/citation/mimulus-peregrinus-phrymaceae-a-new-british-allopolyploid-species; https://doi.org/10.3897/phytokeys.14.3305
Article
Winn AA, Elle E, Kalisz S, Cheptou P, Eckert CG, Goodwillie C, Johnston MO, Moeller DA, Ree RH, Sargent RD & Vallejo-Marin M (2011) Analysis of inbreeding depression in mixed-mating plants provides evidence for selective interference and stable mixed mating. Evolution, 65 (12), pp. 3339-3359. https://doi.org/10.1111/j.1558-5646.2011.01462.x
Article
Vallejo-Marin M, Solis-Montero L, Bacles C & Lepais O (2011) Thirteen microsatellites developed by SSR-enriched pyrosequencing for Solanum rostratum (Solanaceae) and related species. American Journal of Botany, 98 (10), pp. e296-e299. https://doi.org/10.3732/ajb.1100159
Article
The ecological and evolutionary consequences of clonality for plant mating
Vallejo-Marin M, Dorken ME & Barrett SCH (2010) The ecological and evolutionary consequences of clonality for plant mating. Annual Review of Ecology, Evolution, and Systematics, 41, pp. 193-213. https://doi.org/10.1146/annurev.ecolsys.110308.120258
Article
Trait correlates and functional significance of heteranthery in flowering plants
Vallejo-Marin M, Da Silva EM, Sargent RD & Barrett SCH (2010) Trait correlates and functional significance of heteranthery in flowering plants. New Phytologist, 188 (2), pp. 418-425. https://doi.org/10.1111/j.1469-8137.2010.03430.x
Article
Goodwillie C, Sargent RD, Eckert CG, Elle E, Geber MA, Johnston MO, Kalisz S, Moeller DA, Ree RH, Vallejo-Marin M & Winn AA (2010) Correlated evolution of mating system and floral display traits in flowering plants and its implications for the distribution of mating system variation. New Phytologist, 185 (1), pp. 311-321. https://doi.org/10.1111/j.1469-8137.2009.03043.x
Article
Plant mating systems in a changing world
Eckert CG, Kalisz S, Geber MA, Sargent RD, Elle E, Cheptou P, Goodwillie C, Johnston MO, Kelly JK, Moeller DA, Porcher E, Ree RH, Vallejo-Marin M & Winn AA (2010) Plant mating systems in a changing world. Trends in Ecology and Evolution, 25 (1), pp. 35-43. https://doi.org/10.1016/j.tree.2009.06.013
Article
Evolutionary pathways to self-fertilization in a tristylous plant species
Barrett SCH, Ness RW & Vallejo-Marin M (2009) Evolutionary pathways to self-fertilization in a tristylous plant species. New Phytologist, 183 (3), pp. 546-556. https://doi.org/10.1111/j.1469-8137.2009.02937.x
Article
Aguirre A, Vallejo-Marin M, Piedra-Malagon EM, Cruz-Ortega R & Dirzo R (2009) Morphological variation in the flowers of Jacaratia mexicana A. DC. (Caricaceae), a subdioecious tree. Plant Biology, 11 (3), pp. 417-424. https://doi.org/10.1111/j.1438-8677.2008.00154.x
Article
Modification of flower architecture during early stages in the evolution of self-fertilization
Vallejo-Marin M & Barrett SCH (2009) Modification of flower architecture during early stages in the evolution of self-fertilization. Annals of Botany, 103 (6), pp. 951-962. https://doi.org/10.1093/aob/mcp015
Article
Vallejo-Marin M, Manson JS, Thomson JD & Barrett SCH (2009) Division of labour within flowers: heteranthery, a floral strategy to reconcile contrasting pollen fates. Journal of Evolutionary Biology, 22 (4), pp. 828-839. https://doi.org/10.1111/j.1420-9101.2009.01693.x
Article
Correlations among Fertility Components Can Maintain Mixed Mating in Plants
Johnston MO, Porcher E, Cheptou P, Eckert CG, Elle E, Geber MA, Kalisz S, Kelly JK, Moeller DA, Vallejo-Marin M & Winn AA (2009) Correlations among Fertility Components Can Maintain Mixed Mating in Plants. American Naturalist, 173 (1), pp. 1-11. https://doi.org/10.1086/593705
Book Chapter
Vallejo-Marin M & Uyenoyama MK (2008) On the Evolutionary Modification of Self-Incompatibility: Implications of Partial Clonality for Allelic Diversity and Genealogical Structure. In: Franklin-Tong VE (ed.) Self-Incompatibility in Flowering plants: Evolution, Diversity and Mechanisms. Berlin: Springer-Verlag, pp. 53-71. http://www.springer.com/life+sciences/plant+sciences/book/978-3-540-68485-5; https://doi.org/10.1007/978-3-540-68486-2
Article
Article Addendum: The paradox of clonality and the evolution of self-incompatibility
Vallejo-Marin M (2007) Article Addendum: The paradox of clonality and the evolution of self-incompatibility. Plant Signaling and Behavior, 2 (4), pp. 265-266. http://www.landesbioscience.com/journals/psb/article/3872/; https://doi.org/10.4161/psb.2.4.3872
Article
Selection through female fitness helps to explain the maintenance of male flowers
Vallejo-Marin M & Rausher MD (2007) Selection through female fitness helps to explain the maintenance of male flowers. American Naturalist, 169 (5), pp. 563-568. https://doi.org/10.1086/513112
Article
Vallejo-Marin M & Rausher MD (2007) The role of male flowers in andromonoecious species: Energetic costs and siring success in Solanum carolinense L.. Evolution, 61 (2), pp. 404-412. https://doi.org/10.1111/j.1558-5646.2007.00031.x
Article
Correlated evolution of self-incompatibility and clonal reproduction in Solanum (Solanaceae)
Vallejo-Marin M & O’Brien HE (2007) Correlated evolution of self-incompatibility and clonal reproduction in Solanum (Solanaceae). New Phytologist, 173 (2), pp. 415-421. https://doi.org/10.1111/j.1469-8137.2006.01924.x
Article
Aguirre A, Vallejo-Marin M, Salazar-Goroztieta L, Arias DM & Dirzo R (2007) Variation in sexual expression in Jacaratia mexicana (Caricaceae) in southern Mexico: Frequency and relative seed performance of fruit-producing males. Biotropica, 39 (1), pp. 79-86. https://doi.org/10.1111/j.1744-7429.2006.00230.x
Article
Vallejo-Marin M, Dominguez CA & Dirzo R (2006) Simulated seed predation reveals a variety of germination responses of neotropical rain forest species. American Journal of Botany, 93 (3), pp. 369-376. https://doi.org/10.3732/ajb.93.3.369
Article
Vallejo-Marin M & Uyenoyama MK (2004) On the evolutionary costs of self-incompatibility: Incomplete reproductive compensation due to pollen limitation. Evolution, 58 (9), pp. 1924-1935. https://doi.org/10.1111/j.0014-3820.2004.tb00480.x