3 Works

Data from: Starvation effects on nitrogen and carbon stable isotopes of animals: an insight from meta-analysis of fasting experiments

Hideyuki Doi, Fumikazu Akamatsu & Angélica L. González
Nitrogen and carbon stable isotopic compositions (δ15N and δ13C) of consumers have been used for physiological and food web studies. Previous studies have shown δ15N and δ13C values are affected by several biological and environmental factors during starvation, but the generality of the effect of starvation on δ15N and δ13C values has not yet been tested. Here, we performed a meta-analysis to evaluate the effects of starvation on δ15N and δ13C values of consumers, and...

Data from: Detection of an endangered aquatic heteropteran using environmental DNA in a wetland ecosystem

Hideyuki Doi, Izumi Katano, Yusuke Sakata, Rio Souma, Toshihiro Kosuge, Mariko Nagano, Kousuke Ikeda, Koki Yano & Koji Tojo
The use of environmental DNA (eDNA) has recently been employed to evaluate the distribution of various aquatic macroorganisms. Although this technique has been applied to a broad range of taxa, from vertebrates to invertebrates, its application is limited for aquatic insects such as aquatic heteropterans. Nepa hoffmanni (Heteroptera: Nepidae) is a small (approx. 23 mm) aquatic heteropteran that inhabits wetlands, can be difficult to capture and is endangered in Japan. The molecular tool eDNA was...

Data from: Ontogenetic trajectories of septal spacing in Early Jurassic belemnites from Germany and France, and their palaeobiological implications

Ryoji Wani, Amane Tajika, Kenji Ikuno & Tetsuro Iwasaki
Based on well-preserved belemnites, the ontogenetic trajectories of septal spacing between succeeding chambers were analysed. In the examined species (Passaloteuthis laevigata, Parapassaloteuthis zieteni and Pseudohasitites longiformis) that come from Buttenheim, Germany, and Lixhausen, France, the ontogenetic trajectories of septal spacing follow exponentially increasing trends with no decreasing phase of septal crowding during the earliest ontogenetic stage. The absence of a decreasing trend at the earliest ontogenetic stage is a unique character in contrast with those...

Registration Year

  • 2017
    3

Resource Types

  • Dataset
    3

Affiliations

  • University of Hyogo
    3
  • Shinshu University
    1
  • University of Zurich
    1
  • Hokkaido University
    1
  • Yokohama National University
    1
  • National Research Institute of Brewing
    1
  • Rutgers University
    1