Spatio-temporal diversification pattern of Brinckia (Coleoptera: Tenebrionidae) in the Namib coastal belt
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Title: | Main Title: Spatio-temporal diversification pattern of Brinckia (Coleoptera: Tenebrionidae) in the Namib coastal belt |
Description: | Abstract: Beetles of the family Tenebrionidae, particularly those of the subfamily Pimeliinae, are highly diverse and abundant in desert ecosystems. The sensitivity of the many wingless species to geographical and ecological isolation makes them ideal candidates for studying effects of climatological and/or geophysical changes on organismal diversity. Our study focuses on Brinckia, the only genus of the subtribe Hypomelina adapted to coastal sand dune hummocks (nabkhas) and restricted to that environment along the Namib Desert and the transitional Namib south of the Orange River. Today, Brinckia appear to be common along the coast, albeit with different species, wherever the absence of shifting sand dunes enables the beach hummocks to form, mainly around Salsola and Zygophyllum species. Therefore, past diversification can probably be directly attributed to temporary extinctions of this habitat in certain coastal regions. The presumed center of origin and diversification of Brinckia is on the Gariep Karoo coastline between Port Nolloth and Lüderitz. Our molecular phylogenetic analysis suggests that the first split within Brinckia occurred ~2.3 Ma, i.e., relatively recently, and may be associated with ari- dification that occurred at that time due to global climate change. However, subsequent speciation is more likely the result of the emergence of extensive dune fields, which may have been responsible for temporary habitat degradation in the supralittoral zone. More recent, recurrent and ongoing diversification since the mid-Pleistocene transition, as observed for tenebrionids along the coast of the Atacama and Peruvian deserts, is not typical of Brinckia and supports the stability of their coastal habitat despite glacial climate oscillations. |
Responsible Party
Creators: | Alvaro Zúñiga-Reinoso (Author), Daniela Mardones (Author), Rosa-Stella Mbulu (Author), Tibor Dunai (Author), Reinhard Predel (Author) |
Publisher: | Elseiver |
Publication Year: | 2023 |
Topic
CRC1211 Topic: | Biology |
Related Subproject: | B2 |
Subjects: | Keywords: Evolution, Biodiversity, Arid Zone, Biogeography |
Geogr. Information Topic: | Biota |
File Details
Filename: | Zuniga-Reinoso_etal_2023_brinckia.pdf |
Data Type: | Text - Article |
File Size: | 8.9 MB |
Date: | Available: 01.12.2023 |
Mime Type: | application/pdf |
Data Format: | |
Language: | English |
Status: | Completed |
Constraints
Download Permission: | Free |
General Access and Use Conditions: | According to the CRC1211DB data policy agreement. |
Access Limitations: | According to the CRC1211DB data policy agreement. |
Licence: | None |
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Specific Information - Publication
Publication Status: | Published |
Review Status: | Peer reviewed |
Publication Type: | Article |
Article Type: | Journal |
Source: | Global and Planetary Change |
Volume: | 231 |
Number of Pages: | 1 (32767 - 32767) |
Metadata Details
Metadata Creator: | Alvaro Zúñiga |
Metadata Created: | 03.12.2023 |
Metadata Last Updated: | 03.12.2023 |
Subproject: | B2 |
Funding Phase: | 2 |
Metadata Language: | English |
Metadata Version: | V50 |
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Page Visits: | 113 |
Metadata Downloads: | 0 |
Dataset Downloads: | 2 |
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