10 Works

Data from: Convergent evolution of body color between sympatric freshwater fishes via different visual sensory evolution

Javier Montenegro, Koji Mochida, Kumi Matsui, Daniel F. Mokodongan, Bayu K. A. Sumarto, Sjamsu A. Lawelle, Andy B. Nofrianto, Renny K. Hadiaty, Kawilarang W. A. Masengi, Lengxob Yong, Nobuyuki Inomata, Takahiro Irie, Yasuyuki Hashiguchi, Yohey Terai, Jun Kitano & Kazunori Yamahira
Although there are many examples of color evolution potentially driven by sensory drive, only few studies have examined whether distinct species inhabiting the same environments evolve similar body colors via shared sensory mechanisms. In this study, we tested whether two sympatric freshwater fish taxa, halfbeaks of the genus Nomorhamphus and ricefishes of the genus Oryzias in Sulawesi Island, converge in both body color and visual sensitivity. After reconstructing the phylogeny separately for Nomorhamphus and Oryzias...

Resource partitioning is not coupled with assortative mating in sympatrically divergent ricefish in a Wallacean ancient lake

Ryo Kakioka, Nobu Sutra, Hirozumi Kobayashi, Satoshi Ansai, Kawilarang Masengi, Atsushi Nagano, Noboru Okuda, Rieko Tanaka, Masahiro Sato & Kazunori Yamahira
Sympatric speciation is considered to be difficult without the coupling between ecological traits that allow resource partitioning and reproductive traits that allow assortative mating. Such “magic traits” are known to be involved in most of the compelling examples of sympatric speciation. In this study, we report a possible case of sympatric speciation without magic traits. Three species of ricefish (genus Oryzias) are suggested to have diverged sympatrically within Lake Poso, an ancient lake in Sulawesi....

Mesozoic origin and out-of-India radiation of ricefishes (Adrianichthyidae)

Kazunori Yamahira, Satoshi Ansai, Ryo Kakioka, Hajime Yaguchi, Takeshi Kon, Hirozumi Kobayashi, Javier Montenegro, Shingo Fujimoto, Ryosuke Kimura, Yusuke Takehana, Davin Setiamarga, Yasuoki Takami, Rieko Tanaka, Ken Maeda, Hau Tran, Noriyuki Koizumi, Shinsuke Morioka, Vongvichith Bounsong, Katsutoshi Watanabe, Prachya Musikasinthorn, Sein Tun, L. K. C Yun, Kawilarang Masengi, VK Anoop, Rajeev Raghavan … & Jun Kitano
The Indian subcontinent has an origin geologically different from Eurasia, but many terrestrial animal and plant species on it have congeneric or sister species in other parts of Asia, especially in the Southeast. This faunal and floral similarity between India and Southeast Asia is explained by either of the two biogeographic scenarios, ‘into-India’ or ‘out-of-India.’ Phylogenies based on complete mitochondrial genome and five nuclear genes were undertaken for ricefishes (Adrianichthyidae) to examine which of these...

Species divergence and repeated ancient hybridization in a Sulawesian lake system

Kazunori Yamahira, Ixchel Mandagi, Ryo Kakioka, Javier Montenegro, Hirozumi Kobayashi, Kawilarang Masengi, Nobuyuki Inomata, Atsushi Nagano, Atsushi Toyoda, Satoshi Ansai, Masatoshi Matsunami, Ryosuke Kimura, Jun Kitano & Junko Kusumi
An increasing volume of empirical studies demonstrated that hybridization between distant lineages may have promoted speciation in various taxa. However, the timing, extent, and direction of introgressive hybridization remain unknown in many cases. Here, we report a possible case in which repeated hybridization promoted divergence of Oryzias ricefishes (Adrianichthyidae) on Sulawesi, an island of Wallacea. Four Oryzias species are endemic to the Malili Lake system in central Sulawesi, which is composed of five tectonic lakes;...

Second survey of heterobranch sea slugs (Mollusca, Gastropoda, Heterobranchia) from Bunaken National Park, North Sulawesi, Indonesia - how much do we know after 12 years

Fontje Kaligis, Jan-Hendrik Eisenbarth, Dorothee Schillo, Till Schäberle, Nils Böhringer, Robert Bara, Gabriele M. König & Heike Wägele
Bunaken National Park (BNP) is one of the most famous marine national parks in Indonesia with an extraordinary diversity in marine life forms. However, this diversity is threatened by an increasing population on the islands, ongoing destructive fishing techniques and lately by an increase in tourism. Protecting and managing the future use of BNP resources will require the assessment of both, local marine biodiversity through monitoring efforts and the identification and subsequent reduction of any...

Marine Heterobranchia (Gastropoda, Mollusca) in Bunaken National Park, North Sulawesi, Indonesia—A Follow-Up Diversity Study

Jan-Hendrick Eisenbarth, Nani Undap, Adelfia Papu, Dorothee Schillo, Fontje Kaligis, Robert Bara, Till Schäberle, Gabriele M. König, Nathalie Yonow & Heike Wägele
Bunaken National Park has been surveyed for a fourth time in 14 years, in an attempt to establish the species composition of heterobranch sea slugs in a baseline study for monitoring programs and protection of this special park. These molluscs are potentially good indicators of the health of an ecosystem, as many are species-specific predators on a huge variety of marine benthic and sessile invertebrates from almost every taxonomic group. Additionally, they are known to...

Past deforestation (2000-2018) and future deforestation probability (2019-2053) for Wallacea

M. Voigt, J. Supriatna, N.J. Deere, A. Kastanya, S.L. Mitchell, I.M.D. Rosa, T. Santika, R. Siregar, J.S. Tasirin, A. Widyanto, N.L. Winarni, Z. Zakaria, S. Mumbunan, Z.G. Davies & M.J. Struebig
Primary forest cover and forest cover loss in Wallacea for the years 2000-2018 to train a deforestation model and produce maps of projected probability of deforestation until 2053.

First Study on Marine Heterobranchia (Gastropoda, Mollusca) in Bangka Archipelago, North Sulawesi, Indonesia

Adelfia Papu, Nani Undap, Nancy Armas Martinez, Nathalie Yonow & Heike Wägele
As ephemeral, benthic, secondary consumers usually associated with sessile coral reef organisms, marine heterobranchs are good indicators of the health of marine tropical habitats. Thus, marine Heterobranchia have recently become a major target for monitoring programs. For this work, an extensive survey was made in Bangka Archipelago, the first of its kind in this area. Bangka Archipelago is composed of small islands and the adjacent coastline of North Sulawesi. The substrate is dominated by biogenic...

Ancient geological dynamics impact neutral biodiversity accumulation and are detectable in phylogenetic reconstructions

Leonel Herrera-Alsina, Adam Algar, Greta Bocedi, Cecile Gubry-Rangin, Lesley Lancaster, Poppy Mynard, Owen Osborne, Alexander Papadopulos, Simon Creer, Meis Nangoy, Fahri Fahri, Pungki Lupiyaningdyah, I Made Sudiana, Berry Juliandi & Justin Travis
Aim Landmasses have been continuously modified by tectonic activity, the breakup and collision of landmasses is thought to have generated or suppressed ecological opportunities, altering the rates of speciation, dispersal and extinction. However, the extent to which the signatures of past geologic events are retained in modern biodiversity patterns - or obliterated by recent ecological dynamics - remains unresolved. We aim to identify the fingerprint of different scenarios of geological activity on phylogenetic trees and...

Genetic basis for the evolution of pelvic-fin brooding, a new mode of reproduction, in a Sulawesian fish

Javier Montenegro, Shingo Fujimoto, Satoshi Ansai, Atsushi Nagano, Masahiro Sato, Yusuke Maeda, Rieko Fujitani, Kawilarang Masengi, Ryosuke Kimura, Jun Kitano & Kazunori Yamahira
Modes of reproduction in animals are diverse, with different modes having evolved independently in multiple lineages across a variety of taxa. However, an understanding of the genomic change driving the transition between different modes of reproduction is limited. Several ricefishes (Adrianichthyidae) on the island of Sulawesi have a unique mode of reproduction called “pelvic-fin brooding,” wherein females carry externally fertilized eggs until hatching using their pelvic fins. Phylogenomic analysis demonstrated pelvic-fin brooders to have evolved...

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