Lobophora (Dictyotales, Phaeophyceae) from the western Indian Ocean: diversity and biogeography
Lobophora (Dictyotales, Phaeophyceae) from the western Indian Ocean: diversity and biogeography
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西印度洋的叶藻（网状藻目、褐藻纲）：多样性和生物地理学
DOI：
10.1016/j.sajb.2021.06.015
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发表时间：
2021
影响因子：
3.1
通讯作者：
De Clerck Olivier
中科院分区：
文献类型：
--
作者：
Vieira Christophe;Rasoamanendrika Faravavy A.;Zubia Mayalen;Bolton John J.;Anderson Robert J.;Engelen Aschwin H.;D'hondt Sofie;Leliaert Frederik;Payri Claude;Kawai Hiroshi;De Clerck Olivier
Lobophora褐藻属（网基藻目，褐藻科）是热带海洋生态系统的重要组成部分。虽然采样仍然很少，但以前在西印度洋发现了35种Lobophora。这项研究更新了以前的多样性估计，将最近收集的马达加斯加，莫桑比克和红海，大大提高了我们的知识ofLobophoradiversity和在这一地区的地理。在西印度洋又发现了8个新物种，使Lobophoraspecies的总数增加到43个。15个物种是新的科学和描述在这里。与CA。西印度洋占全球生物多样性的40%，仅次于印度太平洋中部。在迄今已确定的物种中，29种似乎仅限于西印度洋，3种与大西洋共享（4种包括L. 12种在印度-太平洋地区分布较广。西印度洋支持高多样性与CA。其67%的Lobophora仅限于该地区，与印度太平洋中部（62%）和加勒比海（61%）相当。在西印度洋岛屿和红海的几个假定的特有物种的存在表明，这些省份发挥了重要作用，在西印度洋内的Lobophoraspecies多样化，通过生产当地的新物种。印度-太平洋西部和大西洋之间共有的物种数量很少，这表明这一海洋边界-与温带的阿古拉斯海洋省，以及本格拉电流和上升流-作为一个有效的扩散障碍。
The brown algal genusLobophora(Dictyotales, Phaeophyceae) is an important ecological component of tropical marine systems. Although still scantily sampled, 35 species ofLobophorawere discovered previously from the western Indian Ocean. This study updates previous diversity estimates by incorporating recent collections from Madagascar, Mozambique, and the Red Sea, considerably improving our knowledge ofLobophoradiversity and biogeography in this region. Eight additional species are identified from the western Indian Ocean, raising the total number ofLobophoraspecies to 43. Fifteen species are new to science and described herein. Withca. 40% of the global diversity, the western Indian Ocean is second only to the Central Indo-Pacific. Of the species identified to date, 29 appear to be restricted to the western Indian Ocean, three are shared with the Atlantic (four includingL. lessepsianaintroduced to the western Mediterranean Sea) and 12 have a wider distribution in the Indo-Pacific. The western Indian Ocean supports a high diversity withca. 67% of itsLobophorarestricted to this region, which is comparable to the Central Indo-Pacific (62%) and the Caribbean (61%). The presence of several putative endemic species in the western Indian Ocean islands and the Red Sea illustrates that these provinces played an important role inLobophoraspecies diversification within the western Indian Ocean by producing locally new species. The small number of species shared between the western Indo-Pacific and Atlantic indicates that this oceanic boundary – associated with the temperate Agulhas marine province, and the Benguela current and upwelling – acts as an effective dispersal barrier.