A review of bats of the genus Pseudoromicia (Chiroptera: Vespertilionidae) with the description of a new species

References

• Aellen, V. (1952). Contribution à l‘étude des chiroptères du Cameroun. Mémoires de la Société Neuchâteloise des Sciences Naturelles, 8, 1–121.
   Google Scholar
• Amori, G., Segniagbeto, G. H., Decher, J., Assou, D., Gippoliti, S., & Luiselli, L. (2016). Non-marine mammals of Togo (West Africa): an annotated checklist. Zoosystema, 38, 201–244. https://doi.org/10.5252/z2016n2a3
   Web of Science ®Google Scholar
• Awa, T., II, Dzikouk, G., & Norris, K. (2009). Breeding distribution and population decline of globally threatened Grey-necked Picathartes Picathartes oreas in Mbam Minkom Mountain Forest, southern Cameroon. Bird Conservation International, 19, 254–264. https://doi.org/10.1017/S0959270909008363
   Web of Science ®Google Scholar
• Bakwo Fils, E. M. (2010). The Bats of Cameroon: Proving the Benefits of Forgotten Fruit Bats. BATS, 28, 11–13.
   Google Scholar
• Bakwo Fils, E. M., Anong, A. G. B. A., Tsala, D. B., Guieké, B. B., Tsala, D. E., & Fotso, A. K. (2014). Diversity of bats of the Far North Region of Cameroon–with two first records for the country. Biodiversity, 15, 16–22. https://doi.org/10.1080/14888386.2014.889578
   Google Scholar
• Bickham, J. W., Patton, J. C., Schlitter, D. A., Rautenbach, I. L., & Honeycutt, R. L. (2004). Molecular phylogenetics, karyotypic diversity, and partition of the genus Myotis (Chiroptera: Vespertilionidae). Molecular Phylogenetics and Evolution, 33, 333–338.
   PubMed Web of Science ®Google Scholar
• Bickham, J. W., Wood, C. C., & Patton, J. C. (1995). Biogeographic implications of cytochrome b sequences and allozymes in sockeye (Oncorhynchus nerka). The Journal of Heredity, 86, 140–144.
   PubMed Web of Science ®Google Scholar
• Bissaya, R., Ghogomu, R. T., Akissebini, S. M., Njom, B., Gomssi, E. L., & Kanouo, N. S. (2018). Geomorphological approach in active tectonics for the cartography of landslide and rock fall hazards in the North-West part of the region of Yaounde-Cameroon. The International Journal of Engineering and Science, 7, 73–96.
   Google Scholar
• Booth, A. H. (1954). The Dahomey Gap and the mammalian fauna of the West African forests. Revue de Zoologie et de Botanique Africaines, 50, 305–314.
   Google Scholar
• Booth, A. H. (1958). The Niger, the Volta and the Dahomey Gap as geographic barriers. Evolution, 12, 48–62.
   Web of Science ®Google Scholar
• Borgelt, J., Dorber, M., Høiberg, M. A., & Verones, F. (2022). More than half of data deficient species predicted to be threatened by extinction. Communications Biology, 5, 679. https://doi.org/10.1038/s42003-022-03638-9
   PubMed Web of Science ®Google Scholar
• Caetano, G. H., de, O., Chapple, D. G., Grenyer, R., Raz, T., Rosenblatt, J., Tingley, R., Böhm, M., Meiri, S., & Roll, U. (2022). Automated assessment reveals that the extinction risk of reptiles is widely underestimated across space and phylogeny. PLoS Biology, 20, e3001544. https://doi.org/10.1371/journal.pbio.3001544
   PubMed Web of Science ®Google Scholar
• Carcasson, R. H. (1964). A preliminary survey of the zoogeography of African butterflies. African Journal of Ecology, 2, 122–157. https://doi.org/10.1111/j.1365-2028.1964.tb00203.x
   Google Scholar
• Copernicus Sentinel data. (2022). Retrieved from ASF DAAC [27 May 2022], processed by ESA.
   Google Scholar
• Darriba, D., Taboada, G. L., Doallo, R., & Posada, D. (2012). jModelTest 2: more models, new heuristics and parallel computing. Nature Methods, 9, 772–772. https://doi.org/10.1038/nmeth.2109
   PubMed Web of Science ®Google Scholar
• Day, R. W., & Quinn, G. P. (1989). Comparisons of treatments after an analysis of variance in ecology. Ecological Monographs, 59, 433–463. https://doi.org/10.2307/1943075
   Web of Science ®Google Scholar
• Decher, J., Hoffmann, A., Schaer, J., Norris, R. W., Kadjo, B., Astrin, J., Monadjem, A., & Hutterer, R. (2015). Bat diversity in the Simandou Mountain Range of Guinea, with the description of a new white-winged vespertilionid. Acta Chiropterologica, 17, 255–282. https://doi.org/10.3161/15081109ACC2015.17.2.003
   Web of Science ®Google Scholar
• Demenou, B. B., Doucet, J. L., & Hardy, O. J. (2018). History of the fragmentation of the African rain forest in the Dahomey Gap: insight from the demographic history of Terminalia superba. Heredity, 120, 547–561. https://doi.org/10.1038/s41437-017-0035-0
   PubMed Web of Science ®Google Scholar
• Demenou, B. B., Piñeiro, R., & Hardy, O. J. (2016). Origin and history of the Dahomey Gap separating West and Central African rain forests: insights from the phylogeography of the legume tree Distemonanthus benthamianus. Journal of Biogeography, 43, 1020–1031. https://doi.org/10.1111/jbi.12688
   Web of Science ®Google Scholar
• Demos, T. C., Webala, P. W., Goodman, S. M., Kerbis Peterhans, J. C., Bartonjo, M., & Patterson, B. D. (2019). Molecular phylogenetics of the African horseshoe bats (Chiroptera: Rhinolophidae): expanded geographic and taxonomic sampling of the Afrotropics. BMC Evolutionary Biology, 19, 1–14. https://doi.org/10.1186/s12862-019-1485-1
   PubMed Web of Science ®Google Scholar
• Demos, T. C., Webala, P. W., Lutz, H. L., Kerbis Peterhans, J. C., Goodman, S. M., Cortés‐Delgado, N., Bartonjo, M., & Patterson, B. D. (2020). Multilocus phylogeny of a cryptic radiation of Afrotropical long‐fingered bats (Chiroptera, Miniopteridae). Zoologica Scripta, 49, 1–13. https://doi.org/10.1111/zsc.12388
   Web of Science ®Google Scholar
• Denys, C., Missoup, A. D., Nicolas, V., Fülling, O., Delapré, A., Bilong, C. F. B., Taylor, P. J., & Hutterer, R. (2014). African highlands as mammal diversity hotspots: new records of Lamottemys okuensis Petter, 1986 (Rodentia: Muridae) and other endemic rodents from Mt Oku, Cameroon. Zoosystema, 36, 647–690. https://doi.org/10.5252/z2014n3a6
   Web of Science ®Google Scholar
• Dongmo, E. M., Bakwo Fils, E.-M., Manga Mongombe, A., & Tchuenguem Fohouo, F.-N. (2020). Diversity of bats (Mammalia: Chiroptera) along an altitudinal gradient in the western region of Cameroon. Bonn Zoological Bulletin, 69, 45–54.
   Google Scholar
• Edgar, R. C. (2004). MUSCLE: multiple sequence alignment with high accuracy and high throughput. Nucleic Acids Research, 32, 1792–1797. https://doi.org/10.1093/nar/gkh340
   PubMed Web of Science ®Google Scholar
• Eisentraut, M. (1941). Beitrag zur Oekologie Kameruner Chiropteren. Mitteilungen Aus Dem Zoologischen Museum in Berlin, 25, 245–273.
   Google Scholar
• Eisentraut, M. (1956). Beitrag zur Chiropteren-Fauna von Kamerun (Westafrika). Zoologische Jahrbücher: Abteilung Für Systematik, 84, 505–540.
   Google Scholar
• Eisentraut, M. (1957). Beitrag zur Säugetierfauna des Kamerungebirges und Verbreitung der Arten in den verschiedenen Höhenstufen. Zoologische Jahrbücher: Abteilung Für Systematik, 85, 619–672.
   Google Scholar
• Eisentraut, M. (1963). Die Wirbeltiere des Kamerungebirges. Unter besonderer Berücksichtigung des Faunenwechsels in den verschiedenen Höhenstufen. P Parey.
   Google Scholar
• Eisentraut, M. (1973). Die Wirbelthierefauna von Fernando Poo und Westkamerun, Unter besonderer Berücksichtigung der Bedeutung der pleistozänen Klimaschwankungen für die heutige Faunenverteilung. Bonner Zoologische Monographien, 3, 1–428.
   Google Scholar
• Esri Inc. (2020). ArcGIS Pro (Version 2.5). Esri Inc. https://www.esri.com/en-us/arcgis/products/arcgis-pro/overview.
   Google Scholar
• Fedden, M. O., & MacLeod, H. L. (1986). Bat research in western Cameroon. In S. N. Stuart (Ed.), Conservation of Cameroon Montane Forest: Report of the ICBP Cameroon Montane Forest Survey November 1983-April 1984 (pp. 175–195). International Council for Bird Preservation.
   Google Scholar
• Ferreira, D. F., Jarrett, C., Atagana, P. J., Powell, L. L., & Rebelo, H. (2021). Are bat mist nets ideal for capturing bats? From ultrathin to bird nets, a field test. Journal of Mammalogy, 102, 1627–1634. https://doi.org/10.1093/jmammal/gyab109
   Web of Science ®Google Scholar
• Flaquer, C., Torre, I., & Arrizabalaga, A. (2007). Comparison of sampling methods for inventory of bat communities. Journal of Mammalogy, 88, 526–533. https://doi.org/10.1644/06-MAMM-A-135R1.1
   Web of Science ®Google Scholar
• Gray, J. E. (1821). On the natural arrangement of vertebrose animals. London Medical Repository, 15, 296–310.
   Google Scholar
• Grubb, P. (1978). Patterns of speciation in African mammals. Bulletin of the Carnegie Museum of Natural History, 6, 152–167.
   Google Scholar
• Hall, E. R., & Russell, W. C. (1933). Dermestid beetles as an aid in cleaning bones. Journal of Mammalogy, 14, 372–374. https://doi.org/10.1093/jmammal/14.4.372
   Google Scholar
• Happold, M., & Happold, D. (Ed.). (2013). Mammals of Africa: Vol. IV, Hedgehogs, Shrews and Bats. Bloomsbury Publishing.
   Google Scholar
• Herkt, K. M. B., Barnikel, G., Skidmore, A. K., & Fahr, J. (2016). A high-resolution model of bat diversity and endemism for continental. Africa. Ecological Modeling, 320, 9–28. https://doi.org/10.1016/j.ecolmodel.2015.09.009
   Web of Science ®Google Scholar
• Hutterer, R., Decher, J., Monadjem, A., & Astrin, J. (2019). A new genus and species of vesper bat from West Africa, with notes on Hypsugo, Neoromicia, and Pipistrellus (Chiroptera: Vespertilionidae). Acta Chiropterologica, 21, 1–22. https://doi.org/10.3161/15081109ACC2019.21.1.001
   Web of Science ®Google Scholar
• IUCN [International Union for the Conservation of Nature]. (2021). The IUCN Red List of Threatened Species. May 24, 2021. https://www.iucnredlist.org
   Google Scholar
• Juste, J., Torrent, L., Méndez-Rodríguez, A., Howard, K., García-Mudarra, J. L., Nogueras, J., & Ibáñez, C. (2023). A new Pipistrelle bat from the oceanic Island of Príncipe (Western Central Africa). Journal of Mammalogy, 104, in press.
   PubMed Web of Science ®Google Scholar
• Kumar, S., Stecher, G., Li, M., Knyaz, C., & Tamura, K. (2018). MEGA X: molecular evolutionary genetics analysis across computing platforms. Molecular Biology and Evolution, 35, 1547–1549. https://doi.org/10.1093/molbev/msy096
   PubMed Web of Science ®Google Scholar
• Lebreton, M., Bakwo Fils, E. M., Takuo, J. M., & Le Doux Diffo, J. (2014). The first record of the African Sheath-tailed Bat Coleura afra (Peters, 1852) (Mammalia, Chiroptera) in Cameroon with information on its ecology. African Bat Conservation News, 36, 2–4.
   Google Scholar
• Linder, H. P., de Klerk, H. M., Born, J., Burgess, N. D., Fjeldså, J., & Rahbek, C. (2012). The partitioning of Africa: statistically defined biogeographical regions in sub–Saharan Africa. Journal of Biogeography, 39, 1189–1205. https://doi.org/10.1111/j.1365-2699.2012.02728.x
   Web of Science ®Google Scholar
• Livingstone, D. A. (1975). Late Quaternary climatic change in Africa. Annual Review of Ecology and Systematics, 6, 249–280. https://doi.org/10.1146/annurev.es.06.110175.001341
   Google Scholar
• Lönnberg, E. (1929). The development and distribution of the African fauna in connection with and depending upon climatic changes. Arkiv för zoologi, 21A, 1–33.
   Google Scholar
• Manga Mongombe, A., Bakwo Fils, E. M., & Tamesse, J. L. (2019). Diversity and altitudinal distribution of bats (Mammalia: Chiroptera) on Mount Cameroon. Tropical Zoology, 32, 166–187. https://doi.org/10.1080/03946975.2019.1680077
   Web of Science ®Google Scholar
• Miller, M. A., Pfeiffer, W., & Schwartz, T. (2010, November 14) Creating the CIPRES Science Gateway for inference of large phylogenetic trees [Paper presentation]. 2010 Gateway Computing Environments Workshop (GCE), pp. 1–8, https://doi.org/10.1109/GCE.2010.5676129
   Google Scholar
• Monadjem, A., Demos, T. C., Dalton, D. L., Webala, P. W., Musila, S., Kerbis Peterhans, J. C., & Patterson, B. D. (2021). A revision of pipistrelle-like bats (Mammalia: Chiroptera: Vespertilionidae) in East Africa with the description of new genera and species. Zoological Journal of the Linnean Society, 191, 1114–1146. https://doi.org/10.1093/zoolinnean/zlaa087
   Web of Science ®Google Scholar
• Monadjem, A., Richards, L. R., Decher, J., Hutterer, R., Mamba, M. L., Guyton, J., Naskrecki, P., Markotter, W., Wipfler, B., Kropff, A. S., & Dalton, D. L. (2021). A phylogeny for African Pipistrellus species with the description of a new species from West Africa (Mammalia: Chiroptera). Zoological Journal of the Linnean Society, 191, 1114–1146. https://doi.org/10.1093/zoolinnean/zlaa068
   Web of Science ®Google Scholar
• Monadjem, A., Richards, L., & Denys, C. (2016). An African bat hotspot: the exceptional importance of Mount Nimba for bat diversity. Acta Chiropterologica, 18, 359–375. https://doi.org/10.3161/15081109ACC2016.18.2.005
   Web of Science ®Google Scholar
• Monadjem, A., Richards, L., Taylor, P. J., & Stoffberg, S. (2013). High diversity of pipistrelloid bats (Vespertilionidae: Hypsugo, Neoromicia, and Pipistrellus) in a West African rainforest with the description of a new species. Zoological Journal of the Linnean Society, 167, 191–207. https://doi.org/10.1111/j.1096-3642.2012.00871.x
   Web of Science ®Google Scholar
• Monadjem, A., Shapiro, J. T., Richards, L. R., Karabulut, H., Crawley, W., Nielsen, I. B., Hansen, A., Bohmann, K., & Mourier, T. (2020). Systematics of West African Miniopterus with the description of a new species. Acta Chiropterologica, 21, 237–256. https://doi.org/10.3161/15081109ACC2019.21.2.001
   Web of Science ®Google Scholar
• Moreau, R. E. (1952). Africa since the Mesozoic: with particular reference to certain biological problems. Proceedings of the Zoological Society of London, 121, 869–913. https://doi.org/10.1111/j.1096-3642.1952.tb00789.x
   Google Scholar
• Moreau, R. E. (1963). Vicissitudes of the African biomes in the late Pleistocene. Proceedings of the Zoological Society of London, 141, 395–421. https://doi.org/10.1111/j.1469-7998.1963.tb01618.x
   Google Scholar
• Moreau, R. E. (1966). The bird faunas of Africa and its islands. Academic Press.
   Google Scholar
• Moreau, R. E. (1969). Climatic changes and the distribution of forest vertebrates in West Africa. Journal of Zoology, 158, 39–61. https://doi.org/10.1111/j.1469-7998.1969.tb04965.x
   Web of Science ®Google Scholar
• Nguyen, L. T., Schmidt, H. A., Von Haeseler, A., & Minh, B. Q. (2015). IQ-TREE: a fast and effective stochastic algorithm for estimating maximum-likelihood phylogenies. Molecular Biology and Evolution, 32, 268–274. https://doi.org/10.1093/molbev/msu300
   PubMed Web of Science ®Google Scholar
• Oksanen, J., Blanchet, F. G., Friendly, M., Kindt, R., Legendre, P., McGlinn, D., Minchin, P. R., O’Hara, R. B., Simpson, G. L., Solymos, P., Stevens, M. H. H., Szoecs, E., Wagner, H. (2020). Vegan: community ecology package. R package version 4.2.0. http://cran.r-project.org
   Google Scholar
• Olson, D. M., Dinerstein, E., Wikramanayake, E. D., Burgess, N. D., Powell, G. V. N., Underwood, E. C., D'amico, J. A., Itoua, I., Strand, H. E., Morrison, J. C., Loucks, C. J., Allnutt, T. F., Ricketts, T. H., Kura, Y., Lamoreux, J. F., Wettengel, W. W., Hedao, P., & Kassem, K. R. (2001). Terrestrial Ecoregions of the World: A New Map of Life on Earth. BioScience, 51, 933–938. https://doi.org/10.1641/0006-3568(2001)051[0933:TEOTWA2.0.CO;2]
   Web of Science ®Google Scholar
• Pahl, A. (2020). Skeleton preparation best practices in the modern museum: the dermestid approach. Curator: The Museum Journal, 63, 99–113. https://doi.org/10.1111/cura.12349
   Web of Science ®Google Scholar
• Patterson, B. D., Webala, P. W., Rossoni, D., & Demos, T. C. (2021, June 14–18) Diversification histories of Afrotropical bats: lessons from 21 genera [Paper presentation, no. 363]. 100th Annual Meeting of the American Society of Mammalogists (online at: https://asm.econference.io/public/hqHFK3h/main/sessions/955), held virtually.
   Google Scholar
• Perret, J. L., & Aellen, V. (1956). Mammifères du Cameroun de la collection J. L. Perret. Revue Suisse de Zoologie, 63, 395–450. https://doi.org/10.5962/bhl.part.75468
   Google Scholar
• Peters, W. C. H. (1852). Naturwissenschaftliche Reise nach Mossambique, auf Befehl Seiner Majestät des Königs Friedrich Wilhelm IV, in den Jahren 1842 bis 1848 ausgeführt, von Wilhelm C. H. Peters. Zoologie. Georg Reimer.
   Google Scholar
• Peters, W. (1872). Eine Mittheilung über neue Flederthiere (Phyllorhina micropus, Harpyiocephalus Huttoni, Murina grisea, Vesperugo micropus, Vesperus (Marsipolæmus) albigularis, Vesperus propinquus, tenuipinnis). Monatsberichte de Könniglichen Preussische Akademie des Wissenschaften zu Berlin, 1872, 256–264.
   Google Scholar
• R Core Team. (2020). R: a language and environment for statistical computing (Version 4.2.0) [Computer software]. R Foundation for Statistical Computing. https://www.R-project.org/
   Google Scholar
• Rambaut, A., Drummond, A. J., Xie, D., Baele, G., & Suchard, M. A. (2018). Posterior summarization in Bayesian phylogenetics using Tracer 1.7. Systematic Biology, 67, 901–904. https://doi.org/10.1093/sysbio/syy032
   PubMed Web of Science ®Google Scholar
• Robbins, C. B. (1978). The Dahomey Gap – a reevaluation of its significance as a faunal barrier to west African high forest mammals. Bulletin of the Carnegie Museum of Natural History, 6, 168–174.
   Google Scholar
• Ronquist, F., Teslenko, M., van der Mark, P., Ayres, D. L., Darling, A., Höhna, S., Larget, B., Liu, L., Suchard, M. A., & Huelsenbeck, J. P. (2012). MrBayes 3.2: efficient Bayesian phylogenetic inference and model choice across a large model space. Systematic Biology, 61, 539–542. https://doi.org/10.1093/sysbio/sys029
   PubMed Web of Science ®Google Scholar
• Rowan, J., Kamilar, J. M., Beaudrot, L., & Reed, K. E. (2016). Strong influence of palaeoclimate on the structure of modern African mammal communities. Proceedings of the Royal Society B: Biological Sciences, 283, 20161207. https://doi.org/10.1098/rspb.2016.1207
   PubMed Web of Science ®Google Scholar
• Ruedas, L. A. (1998). Systematics of Sylvilagus Gray, 1867 (Lagomorpha: Leporidae) from southwestern North America. Journal of Mammalogy, 79, 1355–1378. https://doi.org/10.2307/1383027
   Web of Science ®Google Scholar
• Russell, W. C. (1947). Biology of the dermestid beetle with reference to skull cleaning. Journal of Mammalogy, 28, 284–287.
   PubMed Web of Science ®Google Scholar
• SAS Institute Inc. (2018). SAS/STAT® 15.1 User’s Guide. SAS Institute Inc.
   Google Scholar
• Sikes, R. S, and the Animal Care and Use Committee of the American Society of Mammalogists. (2016). 2016 Guidelines of the American Society of Mammalogists for the use of wild mammals in research and education. Journal of Mammalogy, 97, 663–688. https://doi.org/10.1093/jmammal/gyw078
   PubMed Web of Science ®Google Scholar
• Simo, M., Droissart, V., Sonké, B., & Stevart, T. (2009). The orchid flora of the Mbam Minkom hills (Yaoundé, Cameroon). Belgian Journal of Botany, 142, 111–123.
   Google Scholar
• Smithe, F. B. (1974). Naturalist’s color guide supplement. The American Museum of Natural History.
   Google Scholar
• Tanshi, I., Obitte, B. C., Monadjem, A., & Kingston, T. (2022a). Hidden Afrotropical bat diversity in Nigeria: ten new country records from a biodiversity hotspot. Acta Chiropterologica, 23, 313–343. https://doi.org/10.3161/15081109ACC2021.23.2.004
   Web of Science ®Google Scholar
• Tanshi, I., Obitte, B. C., Monadjem, A., Rossiter, S. J., Fisher-Phelps, M., & Kingston, T. (2022b). Multiple dimensions of biodiversity in paleotropical hotspots reveal comparable bat diversity. Biotropica, 54, 1205–1216. https://doi.org/10.1111/btp.13143
   Web of Science ®Google Scholar
• Thomas, O. (1880). On bats from Old Calabar. Annals and Magazine of Natural History, Series 5, 6, 164–167. https://doi.org/10.1080/00222938009458914
   Google Scholar
• Thomas, O. (1889). Description of a new bat from the Gambia. Annals and Magazine of Natural History, Series 6, 3, 362–364. https://doi.org/10.1080/00222938909460347
   Google Scholar
• Van Cakenberghe, V. & Seamark, E. C. J. (Eds.). (2021). African Chiroptera Report 2021. AfricanBats NPC.
   Google Scholar
• Van Cakenberghe, V., & Happold, M. (2013). Pipistrellus rendalli, Rendall’s Pipistrelle. In M. Happold & D. Happold, (Eds.), Mammals of Africa. Volume IV. Hedgehogs, shrews and bats (pp. 645–647). Bloomsbury Publishing.
   Google Scholar
• Velazco, P. M., & Gardner, A. L. (2012). A new species of Lophostoma d’Orbigny, 1836 (Chiroptera: Phyllostomidae) from Panama. Journal of Mammalogy, 93, 605–614. https://doi.org/10.1644/11-MAMM-A-217.1
   Web of Science ®Google Scholar
• Voss, R. S., Marcus, L. F., & Escalante, P. P. (1990). Morphological evolution in muroid rodents I. Conservative patterns of craniometric covariance and their ontogenetic basis in the Neotropical genus Zygodontomys. Evolution; International Journal of Organic Evolution, 44, 1568–1587. https://doi.org/10.2307/2409338
   PubMed Web of Science ®Google Scholar
• Waghiiwimbom, M. D., Bakwo Fils, E. M., Atagana, P. J., Tsague Kenfack, J. A., & Tamesse, J. L. (2020). Diversity and community structure of bats (Chiroptera) in the Centre Region of Cameroon. African Journal of Ecology, 58, 211–226. https://doi.org/10.1111/aje.12692
   Web of Science ®Google Scholar
• White, F. (1983). The vegetation of Africa. A descriptive memoir to accompany the Unesco/AETFAT/UNSO vegetation map of Africa. United Nations Educational, Scientific and Cultural Organization.
   Google Scholar
• Wickham, H. (2016). ggplot2: Elegant Graphics for Data Analysis. Springer-Verlag. https://ggplot2.tidyverse.org.
   Google Scholar
• Wilcoxon, F. (1945). Individual comparisons by ranking methods. Biometrics Bulletin, 1, 80–83. https://doi.org/10.2307/3001968
   Google Scholar