6 Works

Data from: Evolutionary origin of the Scombridae (tunas and mackerels): members of a Paleogene adaptive radiation with 14 other pelagic fish families

Masaki Miya, Matt Friedman, Takashi P. Satoh, Hirohiko Takeshima, Tetsuya Sado, Wataru Iwasaki, Yusuke Yamanoue, Masanori Nakatani, Kohji Mabuchi, Jun G. Inoue, Jan Yde Poulsen, Tsukasa Fukunaga, Yukuto Sato & Mutsumi Nishida
Uncertainties surrounding the evolutionary origin of the epipelagic fish family Scombridae (tunas and mackerels) are symptomatic of the difficulties in resolving suprafamilial relationships within Percomorpha, a hyperdiverse teleost radiation that contains approximately 17,000 species placed in 13 ill-defined orders and 269 families. Here we find that scombrids share a common ancestry with 14 families based on (i) bioinformatic analyses using partial mitochondrial and nuclear gene sequences from all percomorphs deposited in GenBank (10,733 sequences) and...

Data from: A simple explanation for the evolution of complex song syntax in Bengalese finches

Kentaro Katahira, Kenta Suzuki, Hiroko Kagawa & Kazuo Okanoya
The songs of Bengalese finches (Lonchura striata var. domestica) have complex syntax and provide an opportunity to investigate how complex sequential behavior emerges via the evolutionary process. In the present study, we suggest that a simple mechanism, i.e., many-to-one mapping from internal states onto syllables, may underlie the emergence of apparent complex syllable sequences that have higher-order history dependencies. We analyzed the songs of Bengalese finches and of their wild ancestor, the white-rumped munia (Lonchura...

Data from: Population admixture and high larval viability among urban toads

Kazuko Hase, Naruo Nikoh & Masakazu Shimada
In terms of evolutionary biology, a population admixture of more than two distinct lineages may lead to strengthened genetic variation through hybridization. However, a population admixture arising from artificial secondary contact poses significant problems in conservation biology. In urban Tokyo, a population admixture has emerged from two lineages of Japanese common toad: native Bufo japonicus formosus and nonnative B. japonicus japonicus, of which the latter was introduced in the early 20th century. To evaluate the...

Data from: Diachronous increase in early Cambrian ichnofossil size and benthic faunal activity in different climatic regions

Takafumi Mochizuki, Tatsuo Oji, Yuanlong Zhao, Jin Peng, Xinglian Yang, Gonchigdorj Sersmaa & Sersmaa Gonchigdorj
In order to clarify the pattern of diversification and processes of biological activity during the Cambrian radiation, ichnofossils were comparatively studied in the early Cambrian sections of Newfoundland, South China and western Mongolia. Special attention was paid to size distributions of the most common ichnogenus, Planolites, and the densities of all the observed ichnofossils that preserve animal activity as expressed by bedding plane bioturbation indices (BPBI). From the Fortune Head section in Newfoundland, a clear...

Data from: Heterochrony and postnatal growth in mammals – an examination of growth plates in limbs

Madeleine Geiger, Analía M. Forasiepi, Daisuke Koyabu & Marcelo R. Sánchez-Villagra
Mammals display a broad spectrum of limb specialisations coupled with different locomotor strategies and habitat occupation. This anatomical diversity reflects different patterns of development and growth, including the timing of epiphyseal growth plate closure in the long bones of the skeleton. We investigated the sequence of union in 15 growth plates in the limbs of about 400 specimens, representing 58 mammalian species: 34 placentals, 23 marsupials, and one monotreme. We found a common general pattern...

Data from: Differential population responses of native and alien rodents to an invasive predator, habitat alteration, and plant masting

Keita Fukasawa, Tadashi Miyashita, Takuma Hashimoto, Masaya Tatara & Shintaro Abe
Invasive species and anthropogenic habitat alteration are major drivers of biodiversity loss. When multiple invasive species occupy different trophic levels, removing an invasive predator might cause unexpected outcomes due to complex interactions among native and non-native prey. Moreover, external factors such as habitat alteration and resource availability can affect such dynamics. We hypothesized that native and non-native prey respond differently to an invasive predator, habitat alteration, and bottom–up effects. To test the hypothesis, we used...

Registration Year

  • 2013

Resource Types

  • Dataset


  • University of Tokyo
  • Tohoku University
  • National Institute for Environmental Studies
  • Mongolian University of Science and Technology
  • Guizhou University
  • Centro Científico Tecnológico de Bahía Blanca
  • The Open University of Japan
  • Ministry of the Environment
  • University of Bergen