J Syst Evol ›› 2020, Vol. 58 ›› Issue (1): 33-42.doi: 10.1111/jse.12527

• Research Articles • Previous Articles     Next Articles

Floristic composition and endemism pattern of vascular plants in Ethiopia and Eritrea

Sheng‐Wei Wang1,2†, Biyansa Hirpo Boru1,2,3†, Antony Waigwa Njogu1,2, Anne Christine Ochola1,2, Guang‐Wan Hu1,4, Ya‐Dong Zhou1,4*, and Qing‐Feng Wang1,4   

  1. 1Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
    2University of Chinese Academy of Sciences, Beijing 100049, China
    3Ambo University, Ambo 19, Ethiopia
    4Sino‐Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China
  • Received:2018-11-13 Accepted:2019-05-29 Online:2019-06-27 Published:2020-01-01

Abstract: Traditional attempts to delineate floristic regions are typically based on the qualitative analysis of species distribution, often ignoring the phylogenetic relationships among their taxa. Ethiopia and Eritrea are in the Horn of Africa, known as one of the world's biodiversity hotspots. We quantitatively classified the flora of Ethiopia and Eritrea into meaningful geographical units by analyzing the taxonomic and phylogenetic β‐diversity at genera, total species, and endemic species levels at a scale of 0.5° × 0.5° grid cells. Hierarchical clustering was used to quantitatively delimitate the flora and analysis of similarities was used to test the significant difference between the derived groups in taxonomic composition and phylogenetic relatedness. In total, two floristic subprovinces, five floristic districts, and 13 floristic subdistricts, as well as three centers of species endemism associated with three floristic subdistricts were identified. Our results also showed that the species diversity, endemism, and turnover of the highlands in Ethiopia and Eritrea were much higher than the lowlands, indicating that the floristic differences are closely related to the topography of the East African Rift. In this study, we provided a scientific framework for the composition and relationships of the floristic units in the Horn of Africa, and similarly provided a scientific basis for better conservation of the diversity in this region.

Key words: endemism, floristic division, Horn of Africa, phylogenetic approach, β‐diversity

[1] Brent D. Mishler, Robert Guralnick, Pamela S. Soltis, Stephen A. Smith, Douglas E. Soltis, Narayani Barve, Julie M. Allen, and Shawn W. Laffan. Spatial phylogenetics of the North American flora . J Syst Evol, 2020, 58(4): 393-405.
[2] Jalil Noroozi, Atefeh Pirani, Hamid Moazzeni, Mohammad Mahmoodi, Golshan Zare, Alireza Noormohammadi, Michael H.J. Barfuss, Michael Suen, and Gerald M. Schneeweiss. The new locally endemic genus Yazdana (Caryophyllaceae) and patterns of endemism highlight the high conservation priority of the poorly studied Shirkuh Mountains (central Iran) . J Syst Evol, 2020, 58(3): 339-353.
[3] Harlan T. Svoboda and AJ Harris. Contributions toward understanding the biodiversity of Passiflora in North America: Updates and a new combination from the Baja California Peninsula, Mexico and vicinity . J Syst Evol, 2018, 56(5): 550-561.
[4] Melanie A. Link-Pérez and Shawn W. Laffan. Fern and lycophyte diversity in the Pacific Northwest: Patterns and predictors . J Syst Evol, 2018, 56(5): 498-522.
[5] Victoria Sosa, J. Arturo De-Nova, Marilyn Vásquez-Cruz. Evolutionary history of the flora of Mexico: Dry forests cradles and museums of endemism . J Syst Evol, 2018, 56(5): 523-536.
[6] Aarón Rodríguez, Arturo Castro-Castro, Georgina Vargas-Amado, Ofelia Vargas-Ponce, Pilar Zamora-Tavares, Jesús González-Gallegos, Pablo Carrillo-Reyes, Marco Anguiano-Constante, Marco Carrasco-Ortiz, Miguel García-Martínez, Brandon Gutiérrez-Rodríguez, Juvenal Aragón-Parada, Christian Valdes-Ibarra and Guadalupe Munguía-Lino. Richness, geographic distribution patterns, and areas of endemism of selected angiosperm groups in Mexico . J Syst Evol, 2018, 56(5): 537-549.
[7] Paulo C. Baleeiro, Richard W. Jobson, Paulo T. Sano. Morphometric approach to address taxonomic problems: The case of Utricularia sect. Foliosa (Lentibulariaceae) . J Syst Evol, 2016, 54(2): 175-186.
[8] Ji-Hong HUANG, Jian-Hua CHEN, Jun-Sheng YING, Ke-Ping MA. Features and distribution patterns of Chinese endemic seed plant species . J Syst Evol, 2011, 49(2): 81-94.
[9] Pedro FIASCHI, José R. PIRANI. Review of plant biogeographic studies in Brazil . J Syst Evol, 2009, 47(5): 477-496.
[10] Ying Tsün-Shen, Zhang Zhi-Song. Endemism in the Flora of China—Studies on the Endemic Genera . J Syst Evol, 1984, 22(4): 259-268.
Full text



No Suggested Reading articles found!