Evolutionary history of Sundaland shrews (Eulipotyphla: Soricidae:Crocidura) with a focus on Borneo DOI Creative Commons
Arlo Hinckley, Miguel Camacho‐Sanchez, Manuel Rüedi

et al.

Zoological Journal of the Linnean Society, Journal Year: 2021, Volume and Issue: 194(2), P. 478 - 501

Published: June 21, 2021

Abstract The hyperdiverse shrew genus Crocidura is one of few small mammal genera distributed across Sundaland and all its boundaries. This represents a rare opportunity to study the geological history this region through evolutionary these shrews. We generate phylogeny recognized species show that most speciation events took place during Pleistocene, prior inundation Sunda Shelf around 400 000 years ago. find east–west differentiation within two separate lineages on Borneo, current taxonomy endemic does not reflect history, but ecophenotypic variation plastic traits related elevation. Sulawesi shrews are monophyletic, with single notable exception: black-footed (C. nigripes). diverged from relatives Borneo recently, suggesting human-assisted breach Wallace’s line. Overall, number species, especially probably remains an underestimate.

Language: Английский

Beetle evolution illuminates the geological history of the World's most diverse tropical archipelago DOI Creative Commons
Harald Letsch, Michael Balke, Dominik Kusy

et al.

Ecography, Journal Year: 2023, Volume and Issue: 2023(12)

Published: Oct. 10, 2023

The geologically‐complex Indo–Australian–Melanesian archipelago (IAMA) hosts extraordinarily high levels of species richness and endemism has long served as a natural laboratory for studying biogeography evolution. Nonetheless, its geological history the provenance evolution biodiversity remain poorly understood. Here, we provide scenario IAMA informed by time‐calibrated molecular phylogeny 1006 Trigonopterus weevils – an exceptionally diverse radiation regionally‐endemic flightless beetles. Moreover, performed statistical biogeographic analysis examined timing patterns in accumulation lineages residing priori‐defined geographic units comprising IAMA. We estimate that originated Australia during early Paleogene. Subsequent rapid diversification area present‐day Papuan Peninsula suggests presence proto‐Papuan islands middle Eocene; New Guinea North Coast Ranges were colonized late Eocene, followed Highlands Bird's Head Peninsula. inferred terrestrial habitat Moluccas Sulawesi Oligocene subsequent colonization Sundaland Lesser Sunda Islands. Caledonia Samoa from Peninsula, their faunas also diverged Oligocene. These biota‐informed time estimates are compatible with data region shed new light on paleogeography, even where evidence been lost to erosion. Beetle thus appears have closely tracked IAMA, revealing uniquely well‐resolved view regional biogeography.

Language: Английский

Citations

6
Transgressing Wallace's Line brings hyperdiverse weevils down to earth DOI Creative Commons
Harald Letsch, Michael Balke, Emmanuel F. A. Toussaint

et al.

Ecography, Journal Year: 2020, Volume and Issue: 43(9), P. 1329 - 1340

Published: June 3, 2020

Wallace's Line, located in the heart of Indo‐Australian archipelago, has historically been hypothesized to strongly inhibit dispersal. Taxa crossing this barrier are confronted with different biota Asian or Australian origin, respectively, but extent which these conditions have affected evolution colonizing lineages remains largely unknown. We examined potential correlations body size, lifestyle and biogeographical distribution weevil genus Trigonopterus . These beetles highly diverse both on foliage litter east Line occur exclusively leaf west. Based a comprehensive, dated phylogeny 303 species, we inferred nine events all from Five previously foliage‐dwelling changed their habitats after barrier. Our results indicate that dispersal is not more likely edaphic lineages, rather abiotic and/or biotic factors may be responsible for exclusive habitat Sundaland. This includes differences climate, predatory faunas Australia‐New Guinea, Wallacea A mimicry complex New Guinea species as presumable model relevance context.

Language: Английский

Citations

15
Floristics of forests across low nutrient soils in Sulawesi, Indonesia DOI
Liam Trethowan, Wolf L. Eiserhardt, Deden Girmansyah

et al.

Biotropica, Journal Year: 2020, Volume and Issue: 52(6), P. 1309 - 1318

Published: July 30, 2020

Abstract The island of Sulawesi formed from the joining proto‐islands roughly three million years ago. Regions zoological endemism, corresponding to proto‐islands, have been reported. Sulawesi's tree communities, however, remain poorly documented. In better‐studied tropical regions, soil types similar those found in often distinctive communities. To gather data on we established ten (0.25 ha) plots four across regions. We documented diversity, dominance, and species composition. Linear models composition showed greater influence geographic distance rather than soil, no relationship with climate. This suggests that legacy formation may influenced communities more so sampled. Most our were stressful making it difficult conclude importance edaphic specialization flora. lack climatic effects reflects position within wet tropics where small differences are unlikely large Indonesian is available online material.

Language: Английский

Citations

13
Historical biogeography of Tetrastigma (Vitaceae): Insights into floristic exchange patterns between Asia and Australia DOI
Danxiao Peng, Dang Viet Cuong, Sadaf Habib

et al.

Cladistics, Journal Year: 2021, Volume and Issue: 37(6), P. 803 - 815

Published: June 22, 2021

Abstract Biodiversity exchanges across the Malesian region, linking distinct biotas of Asia and Australia, have long attracted curiosity biologists. Tetrastigma (Vitaceae) has a wide distribution in through Sunda archipelago to Australia provides good case elucidate floristic exchange between Australia. species fleshy fruits that are consumed by birds, representing lineage with predictable dispersal island chains. We herein estimate divergence times reconstruct biogeographic history intensive taxon sampling (96 approximately 120 species; >80%) using 10 chloroplast loci. The was reconstructed 4‐area 6‐area divisions delineating region into one or three areas endemism based on phylogenetic bioregionalization analysis geological Malesia. division shows originated continental diverged from recently segregated genus Pseudocayratia early Eocene (49.43 Ma). Dispersal might started late but mainly occurred last Myr. Continental is indicated be most important source area while biggest sink, 16 27 events inferred Sunda. Only seven arriving Sahul plate reverse back Asia. suggests Philippines been an active junction illustrates asymmetric this genus, which facilitated formation terrestrial connections Miocene expansion wet tropical forests Wallace's Line beyond.

Language: Английский

Citations

12
Evolutionary history of Sundaland shrews (Eulipotyphla: Soricidae:Crocidura) with a focus on Borneo DOI Creative Commons
Arlo Hinckley, Miguel Camacho‐Sanchez, Manuel Rüedi

et al.

Zoological Journal of the Linnean Society, Journal Year: 2021, Volume and Issue: 194(2), P. 478 - 501

Published: June 21, 2021

Abstract The hyperdiverse shrew genus Crocidura is one of few small mammal genera distributed across Sundaland and all its boundaries. This represents a rare opportunity to study the geological history this region through evolutionary these shrews. We generate phylogeny recognized species show that most speciation events took place during Pleistocene, prior inundation Sunda Shelf around 400 000 years ago. find east–west differentiation within two separate lineages on Borneo, current taxonomy endemic does not reflect history, but ecophenotypic variation plastic traits related elevation. Sulawesi shrews are monophyletic, with single notable exception: black-footed (C. nigripes). diverged from relatives Borneo recently, suggesting human-assisted breach Wallace’s line. Overall, number species, especially probably remains an underestimate.

Language: Английский

Citations

12