-
Armbruster W.S., Edwards M.E. & Debevec E.M. 1994. Floral character displacement generates assemblage structure of western Australian trigger plants (Stylidium). Ecology 75: 315–329. https://doi.org/10.2307/1939537
-
Auvray G., Harris D.J., Richardson J.E., Newman M.F. & Särkinen T.E. 2010. Phylogeny and dating of Aframomum (Zingiberaceae). In: Barfod A., Davis J.I., Petersen G. & Seberg O. (eds) Diversity, phylogeny, and evolution in the Monocotyledons: 287–305. Aarhus University Press, Aarhus.
-
Bastida J.M., Alcántara J.M., Rey P.J., Vargas P. & Herrera C.M. 2009. Extended phylogeny of Aquilegia: the biogeographical and ecological patterns of two simultaneous but contrasting radiations. Plant Systematics and Evolution 284(3–4): 171–185. https://doi.org/10.1007/s00606-009-0243-z
-
Bates D., Maechler M. & Bolker B. 2011. Lme4: linear mixed-effects models using s4 classes. R package version 0. 999375-38. Available from http://cran.r-project.org/package=lme4 [accessed 11 Aug. 2021].
-
Bawa K.S. 1990. Plant-pollinator interactions in tropical rain forests. Annual Review of Ecology & Systematics 21: 399–422. https://www.jstor.org/stable/2097031
-
Brisson J.D., Lajoie M., Jacques Allard J. & Jacobe-Remacle A. 1994. Les insectes pollinisateurs: des alliés à protéger. Fleurs Plantes Jardins 3: 1–143.
-
Couvreur T.L., Dauby G., Blach‐Overgaard A., et al. 2020. Tectonics, climate and the diversification of the tropical African terrestrial flora and fauna. Biological Reviews 96(1): 16–51. https://doi.org/10.1111/brv.12644
-
Cruden R.W. 1976. Intraspecific variation in pollen-ovule ratios and nectar secretion – Preliminary evidence of ecotypic adaptation. Annals of the Missouri Botanical Garden 63(2): 277–289. https://doi.org/10.2307/2395306
-
Dhetchuvi J.B. 1996. Taxonomie et phytogéographie des Marantaceae et Zingiberaceae d’Afrique centrale (Gabon, Congo, Zaïre, Rwanda & Burundi). PhD thesis, Université Libre de Bruxelles, Belgium.
-
Eardley C., Kuhlmann M. & Pauly A. 2010. The bee genera and subgenera of sub-Saharan Africa. ABC Taxa 7: 1–138.
-
Farkas Á., Molnár R., Morschhauser T. & Hahn I. 2012. Variation in nectar volume and sugar concentration of Allium ursinum L. ssp. ucrainicum in three habitats. The Scientific World Journal 2012: 138579. https://doi.org/10.1100/2012/138579
-
Fohouo F.N.T., Djonwangwe D., Messi J. & Brückner D. 2010. Activité de butinage et de pollinisation de Apis mellifera andonsonii Latreille (Hymenoptera: Apidae) sur les fleurs de Helianthus annus (Asteraceae) à Ngaoundere (Cameroun). Cameroon Journal of Experimental Biology 5(1): 1–9. https://doi.org/10.4314/cajeb.v5i1.44442
-
Giannini T.C., Garibaldi L.A., Acosta A.L., et al. 2015. Native and non-native supergeneralist bee species have different effects on plant-bee networks. PLoS ONE 10(9): e0137198. https://doi.org/10.1371/journal.pone.0137198
-
Gottsberger G. 1989. Beetle pollination and flowering rhythm of Annona spp. (Annonaceae) in Brazil. Plant Systematics and Evolution 167(3–4): 165–187. https://doi.org/10.1007/bf00936404
-
Grant V. 1994. Modes and origins of mechanical and ethological isolation in angiosperms. Proceedings of the National Academy of Sciences of the United States of America 91(1): 3–10. https://doi.org/10.1073/pnas.91.1.3
-
Grey-Wilson C. 1980. Impatiens of Africa. A.A. Balkema, Rotterdam.
-
Hammer Ø., Harper D.A.T. & Ryan P.D. 2001. PAST: paleontological statistics software package for education and data analysis. Palaeontologia Electronica 4(1): art. 4. Available from http://palaeo-electronica.org/2001_1/past/issue1_01.htm [accessed 11 Aug. 2021].
-
Harris D.J., Poulsen A.D., Frimodt-Møller C., Preston J. & Cronk Q.C.B. 2000. Rapid radiation in Aframomum (Zingiberaceae): evidence from nuclear ribosomal DNA internal transcribed spacer (ITS) sequences. Edinburgh Journal of Botany 57(3): 377–395. https://doi.org/10.1017/s0960428600000378
-
Harris D.J. & Wortley A.H. 2018. Monograph of Aframomum (Zingiberaceae). Systematic Botany Monographs 104: 1–204.
-
Herrera C.M., Pérez R. & Alonso C. 2006. Extreme intraplant variation in nectar sugar composition in an insect-pollinated perennial herb. American Journal of Botany 93(4): 575–581. https://doi.org/10.3732/ajb.93.4.575
-
Horvitz C.C. & Schemske D.W. 1988. A test of the pollinator limitation hypothesis for a neotropical herb. Ecology 69(1): 200–206. https://doi.org/10.2307/1943175
-
Johnson S.D., Linder H.P. & Steiner K.E. 1998. Phylogeny and radiation of pollination systems in Disa (Orchidaceae). American Journal of Botany 85(3): 402–411. https://doi.org/10.2307/2446333
-
Kim W., Gilet T. & Bush J.W.M. 2011. Optimal concentrations in nectar feeding. Proceedings of the National Academy of Sciences of the United States of America 108(40): 16618–16621. https://doi.org/10.1073/pnas.1108642108
-
Lekane Tsobgou D. 2009. L’impact socioéconomique et spatial de la microfinance sur le développement rural au Cameroun: le cas des mutuelles communautaires de croissance (mc2). PhD thesis, Université de Yaoundé 1, Cameroun.
-
Ley A.C. 2008. Evolutionary tendencies in African Marantaceae: evidence from floral morphology, ecology and phylogeny. PhD thesis, Johannes Gutenberg University, Germany. https://doi.org/10.25358/openscience-2617
-
Ley A.C. & Claßen-Bockhoff R. 2011. Evolution in African Marantaceae - Evidence from phylogenetic, ecological and morphological studies. Systematic Botany 36(2): 277–290. https://doi.org/10.1600/036364411x569480
-
Ley A.C. & Harris D.J. 2014. Flower morphological diversity in Aframomum (Zingiberaceae) from Africa – the importance of distinct floral types with presumably specific pollinator associations, differential habitat adaptations & allopatry in speciation and species maintenance. Plant Ecology and Evolution 147(1): 33–48. https://doi.org/10.5091/plecevo.2014.824
-
Lock J.M., Hall J.B. & Abbiw D.K. 1977. The cultivation of melegueta pepper (Aframomum melegueta) in Ghana. Economic Botany 31(3): 321–330. https://doi.org/10.1007/bf02866884
-
Maley J. 1996. The African rain forest – main characteristics of changes in vegetation and climate from the Upper Cretaceous to the Quaternary. Proceedings of the Royal Society of Edinburgh, Section B: Biological Sciences 104: 31–73. https://doi.org/10.1017/S0269727000006114
-
Morales C.L. & Traveset A. 2008. Interspecific pollen transfer: magnitude, prevalence and consequences for plant fitness. Critical Reviews in Plant Sciences 27(4): 221–238. https://doi.org/10.1080/07352680802205631
-
Ollerton J. & Watts S. 2000. Phenotype space and floral typology: towards and objective assessment of pollination syndromes. In: Scandinavian Association for Pollination Ecology honours Knut Faegri. Det Norske Videnskaps-Akademi. I. Matematisk Naturvidenskapelige Klasse, Skrifter, Ny Serie 39: 149–159.
-
Perret M., Chautems A., Spichiger R., Peixoto M. & Savolainen V. 2001. Nectar sugar composition in relation to pollination syndromes in Sinningieae (Gesneriaceae). Annals of Botany 87(2): 267–273. https://doi.org/10.1006/anbo.2000.1331
-
R Core Team 2020. R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna. Available from https://www.R-project.org [accessed 20 Jul. 2021].
-
Roubik D.W., Yanega D., Aluja S.M., Buchmann S.L. & Inouye D.W. 1995. On optimal nectar foraging by some tropical bees (Hymenoptera: Apidae). Apidologie 26: 197–211. https://doi.org/10.1051/apido:19950303
-
Schemske D.W. 1981. Floral convergence and pollinator sharing in two bee pollinated tropical herbs. Ecology 62(4): 946–954. https://doi.org/10.2307/1936993
-
Silva F.A., Chatt E.C., Mahalim S.-N., et al. 2020. Metabolomic profiling of Nicotiana spp. nectars indicate that pollinator feeding preference is a stronger determinant than plant phylogenetics in shaping nectar diversity. Metabolites 10(5): 214. https://doi.org/10.3390/metabo10050214
-
Specht C.D., Kress W.J., Stevenson D.W. & De Salle R. 2001. A molecular phylogeny of Costaceae (Zingiberales). Molecular Phylogenetics and Evolution 21(3): 333–345. https://doi.org/10.1006/mpev.2002.1144
-
Stanley D.A. & Stout J.C. 2014. Pollinator sharing between mass-flowering oilseed rape and co-flowering wild plants: implications for wild plant pollination. Plant Ecology 215(3): 315–325. https://doi.org/10.1007/s11258-014-0301-7
-
Sutherland S. & Delph L.F. 1984. On the importance of male fitness in plants: patterns of fruit-set. Evolution (65): 1093–1104. https://doi.org/10.2307/1938317
-
Tomlinson K.W., Poorter L., Sterck F.J., et al. 2013. Leaf adaptations of evergreen and deciduous trees of semi‐arid and humid savannas on three continents. Journal of Ecology 101(2): 430–440. https://doi.org/10.1111/1365-2745.12056
-
Tukey J.W. 1957. On the comparative anatomy of transformations. The Annals of Mathematical Statistics. 28: 602–632. https://www.jstor.org/stable/2237223
-
Viana B.F., Boscolo D., Mariano Neto E., et al. 2012. How well do we understand landscape effects on pollinators and pollination services? Journal of Pollination Ecology 7: 31–40. https://doi.org/10.26786/1920-7603(2012)2
-
Wang G., Cannon C.H. & Chen J. 2016. Pollinator sharing and gene flow among closely related sympatric dioecious fig taxa. Proceedings of the Royal Society B 283: 20152963. https://doi.org/10.1098/rspb.2015.2963
-
Wester P. & Claßen-Bockhoff R. 2007. Floral diversity and pollen transfer mechanisms in bird-pollinated Salvia species. Annals of Botany 100(2): 401–421. https://doi.org/10.1093/aob/mcm036
-
Zajácz E., Zaják Á., Szalai-Mátray E. & Szalai T. 2006. Nectar production of some sunflower hybrids. Journal of Apicultural Science 50(2): 7–11.
-
Zakaria C.A. 2013. Études chimiques et biologiques d’Aframomum sceptrum (Zingiberaceae) et de la curcumine. PhD thesis, Université Paris-Sud, France.