6 Works

Stan code from: Simulation modeling reveals the evolutionary role of landscape shape and species dispersal on genetic variation within a metapopulation

Ming-Chih Chiu, Kei Nukazawa, Thaddeus Carvajal, Vincent Resh, Bin Li & Kozo Watanabe
Different shapes of landscape boundaries can affect the habitat networks within them and consequently the spatial genetic-patterns of a metapopulation. In this study, we used a mechanistic framework to evaluate the effects of landscape shape, through watershed elongation, on genetic divergence among populations at the metapopulation scale. Empirical genetic data from four, sympatric stream-macroinvertebrates having aerial adults were collected from streams in Japan to determine the roles of species-specific dispersal strategies on metapopulation genetics. Simulation...

Data from: Machine learning based detection of adaptive divergence of the stream mayfly Ephemera strigata populations

Bin Li, Sakiko Yaegashi, Thaddeus M. Carvajal, Maribet Gamboa, Ming-Chih Chiu, Zongming Ren & Kozo Watanabe
Adaptive divergence is a key mechanism shaping the genetic variation of natural populations. A central question linking ecology with evolutionary biology is how spatial environmental heterogeneity can lead to adaptive divergence among local populations within a species. In this study, using a genome scan approach to detect candidate loci under selection, we examined adaptive divergence of the stream mayfly Ephemera strigata in the Natori River Basin in north eastern Japan. We applied a new machine...

Stan code from: Branching networks can have opposing influences on genetic variation in riverine metapopulations

Ming-Chih Chiu, Bin Li, Kei Nukazawa, Vincent Resh, Thaddeus Carvajal & Kozo Watanabe
Aim: Fractal networks, represented by branching complexity in rivers, are ubiquitous in nature. In rivers, the number of either distal (e.g., in headwater streams) or confluent (e.g., in mainstems) locations can be increased along with their branching complexity. Distal- or confluent-spatial locations can result in fewer or greater corridor linkages that can alter genetic divergence at the metapopulation scale. These mechanisms underlying the resulting genetic structuring remain poorly understood at the metapopulation scale, particularly in...

Data from: Magnitude and direction of stream-forest community interactions change with time scale

Amy Marcarelli, Colden Baxter, Joseph Benjamin, Yo Miyake, Masashi Murakami, Kurt Fausch & Shigeru Nakano
Networks of direct and indirect biotic interactions underpin the complex dynamics and stability of ecological systems, yet experimental and theoretical studies often yield conflicting evidence regarding the direction (positive or negative) or magnitude of these interactions. We revisited pioneering datasets collected at the deciduous forested Horonai Stream and conducted ecosystem-level syntheses to demonstrate that the direction of direct and indirect interactions can change depending on the timescale of observation. Prior experimental studies showed that terrestrial...

Data from: Four myriapod relatives – but who are sisters? No end to debates on relationships among the four major myriapod subgroups

Nikolaus U. Szucsich, Daniela Bartel, Alexander Blanke, Alexander Böhm, Alexander Donath, Makiko Fukui, Simon Grove, Shanlin Liu, Oliver Macek, Ryuichiro Machida, Bernhard Misof, Yasutaka Nakagaki, Lars Podsiadlowski, Kaoru Sekiya, Shigekazu Tomizuka, Björn M. Von Reumont, Robert M. Waterhouse, Manfred Walzl, Guanliang Meng, Xin Zhou, Günther Pass & Karen Meusemann
Background: Phylogenetic relationships among the myriapod subgroups Chilopoda, Diplopoda, Symphyla and Pauropoda are still not robustly resolved. The first phylogenomic study covering all subgroups resolved phylogenetic relationships congruently to morphological evidence but is in conflict with most previously published phylogenetic trees based on diverse molecular data. Outgroup choice and long-branch attraction effects were stated as possible explanations for these incongruencies. In this study, we addressed these issues by extending the myriapod and outgroup taxon sampling...

Data from: A phylogeny for the Drosophila montium species group: a model clade for comparative analyses

William Conner, Emily Delaney, Michael Bronski, Paul Ginsberg, Timothy Wheeler, Kelly Richardson, Brooke Peckenpaugh, Kevin Kim, Masayoshi Watada, Ary Hoffmann, Michael Eisen, Artyom Kopp, Brandon Cooper & Michael Turelli
The Drosophila montium species group is a clade of 94 named species closely related to the model D. melanogaster species group. The montium species group is distributed over a broad geographic range throughout Asia, Africa, and Australasia. Species of this group possess a wide range of morphologies, mating behaviors, and endosymbiont associations, making this clade useful for comparative analyses. We use genomic data from 42 available species to estimate the phylogeny and relative divergence times...

Registration Year

  • 2020

Resource Types

  • Dataset


  • Ehime University
  • University of California, Berkeley
  • University of Miyazaki
  • Michigan Technological University
  • University of Montana
  • University of Georgia
  • Zoological Research Museum Alexander Koenig
  • Idaho State University
  • University of Lausanne
  • University of Melbourne