4 Works

Data from: Impact of sexually antagonistic genital morphologies on female reproduction and wild population demography

Yasuoki Takami, Tomohiko Fukuhara, Jun Yokoyama & Masakado Kawata
Sexual conflict is a strong driver of evolution. The evolutionary outcomes of sexual conflict can, in turn, influence ecological processes within populations, e.g., demography. However, evidence for the latter hypothesis is scarce, especially in the wild. Here, we show that sexual conflict is associated with demographic processes determining population size in the ground beetle Carabus insulicola with elaborate male and female genitalia, based on individual- and population-level analyses. We found that sexually antagonistic selection can...

Data from: Tau imaging detects distinctive distribution of tau pathology in ALS/PDC on the Kii Peninsula

Hitoshi Shinotoh, Hitoshi Shimada, Yasumasa Kokubo, Kenji Tagai, Fumitoshi Niwa, Soichiro Kitamura, Hironobu Endo, Maiko Ono, Yasuyuki Kimura, Shigeki Hirano, Maya Mimuro, Masanori Ichise, Naruhiko Sahara, Ming-Rong Zhang, Tetsuya Suhara & Makoto Higuchi
OBJECTIVE: To characterize the distribution of tau pathology in patients with amyotrophic lateral sclerosis/parkinsonism-dementia complex on the Kii Peninsula (Kii ALS/PDC) by tau PET using [11C]PBB3 as ligand. METHODS: This is a cross-sectional study of five patients with ALS/PDC and one asymptomatic participant with a dense family history of ALS/PDC from the Kii Peninsula who took part in this study. All were men, and their age was 76 ± 8 (mean ± SD) years. Thirteen...

Data from: Historical changes in grassland area determined the demography of semi-natural grassland butterflies in Japan

Naoyuki Nakahama, Kei Uchida, Atushi Ushimaru & Yuji Isagi
Semi-natural grassland areas expanded worldwide several thousand years ago following an increase in anthropogenic activities. However, semi-natural grassland habitat areas have been declining in recent decades due to changes in landuse, which have caused a loss of grassland biodiversity. Reconstructing historical and recent demographic changes in semi-natural grassland species will help clarify the factors affecting their population decline. Here, we quantified past and recent demographic histories of Melitaea ambigua (Lepidoptera; Nymphalidae), an endangered grassland butterfly...

Data from: Successful escape of bombardier beetles from predator digestive systems

Shinji Sugiura & Takuya Sato
Some prey animals can escape from the digestive systems of predators after being swallowed. To clarify the ecological factors that determine the success of such an escape, we investigated how the bombardier beetle Pheropsophus jessoensis escapes from two toad species, Bufo japonicus and B. torrenticola, under laboratory conditions. Pheropsophus jessoensis ejects a hot chemical spray from the tip of the abdomen when it is attacked. Although all toads swallowed the bombardier beetles, 43% of the...

Registration Year

  • 2018
    4

Resource Types

  • Dataset
    4

Affiliations

  • Kobe University
    4
  • Yamagata University
    1
  • Mie University
    1
  • Tohoku University
    1
  • Chiba University
    1
  • National Institutes for Quantum and Radiological Science and Technology
    1
  • Kyoto Prefectural University of Medicine
    1
  • Aichi Medical University
    1
  • Kyoto University
    1
  • Yokohama National University
    1