7 Works

Genetic consequences of plant edaphic specialisation to solfatara fields; phylogenetic and population genetic analysis of Carex angustisquama (Cyperaceae)

Koki Nagasawa, Hiroaki Setoguchi, Masayuki Maki, Hayato Goto, Keitaro Fukushima, Yuji Isagi, Yoshihisa Suyama, Yoshihiro Tsunamoto, Ayumi Matsuo, Kazuhiro Sawa & Shota Sakaguchi
Edaphic specialisation is one of the main drivers of plant diversification and has multifaceted effects on population dynamics. Carex angustisquama is a sedge plant growing only on heavily acidified soil in solfatara fields, where only extremophytes can survive. Because of the lack of closely related species in similar habitats and its disjunct distribution, the species offers ideal settings to investigate the effects of adaptation to solfatara fields and historical biogeography on genetic consequences of plant...

Data from: Initial hydraulic failure followed by late-stage carbon starvation leads to drought-induced death in tree, Trema orientalis

Yuri Kono, Atsushi Ishida, Shin-Taro Saiki, Kenichi Yoshimura, Masako Dannoura, Kenichi Yazaki, Fuku Kimura, Jin Yoshimura & Shin-Ichi Aikawa
Drought-induced tree death has become a serious problem in global forest ecosystems. Two nonexclusive hypotheses, hydraulic failure and carbon starvation, have been proposed to explain tree die-offs. To clarify the mechanisms, we investigated the physiological processes of drought-induced tree death in saplings with contrasting Huber values (sapwood area/total leaf area). First, hydraulic failure and reduced respiration were found in the initial process of tree decline, and in the last stage carbon starvation leaded to tree...

The origin and genetic variability of vegetatively propagated clones identified from old planted trees and plantations of Thujopsis dolabrata var. hondae in Ishikawa Prefecture, Japan

Ikeda Torazo, Mishima Kentaro, Takata Katsuhiko & Tomaru Nobuhiro
Clonal plantations of Thujopsis dolabrata var. hondae have been established in Ishikawa Prefecture, Japan, since at least the 1800s. Historical planting of the species has led to the development of vegetatively propagated local cultivars, which originated from ‘donor’ trees that have often been conserved in sacred groves or avenues at shrines and temples. These donor trees must have been selected from natural populations. In this study we estimated the origin and genetic variability of clones...

Data from: Allometric scaling of seed retention time in seed dispersers and its application to estimation of seed dispersal potentials of theropod dinosaurs

Tetsuro Yoshikawa, Kazuto Kawakami & Takashi Masaki
Seed retention time (SRT), the time interval between seed ingestion and defaecation, is a critical parameter that determines the spatial pattern of seed dispersal created by an animal, and is therefore, an essential component of trait-based modelling of seed dispersal functions. However, no simple predictive model of SRT for any given animal exists. We explored the linkage between animal traits and SRT. We collected previously published data on mean SRT for 112 species of birds,...

Data from: Decadal changes in masting behaviour of oak trees with rising temperature

Mitsue Shibata, Masaki Takashi, Tsutomu Yagihashi, Takuya Shimada & Takashi Saitoh
1. Decadal changes in masting behaviour—directional changes in seed production with fluctuations on a decadal time scale—are attracting widespread attention in the context of global climate change. However, our mechanistic understanding of the effects of climate on seed production on a decadal scale is unsatisfactory, partly because of insufficient statistical analyses of long-term data on masting. 2. We detected decadal changes in masting behaviour in the Japanese oak (Quercus crispula) based on long-term data (38...

Data from: Contribution of small isolated habitats in creating refuges from biological invasions along a geomorphological gradient of floodplain waterbodies

Nobuo Ishiyama, Kazuki Miura, Satoshi Yamanaka, Junjiro Negishi & Futoshi Nakamura
1. Habitat fragmentation, which involves habitat size reduction and isolation, is a major cause of biodiversity decline. However, interest in small isolated habitats has increased among ecosystem managers because these fragments can serve as remnant refuges for unique and/or endangered species in human-altered landscapes. 2. In a fragmented floodplain of northern Japan, we demonstrate how habitat fragmentation and habitat quality shape the refuges for a unique endangered minnow (Rhynchocypris percnurus sachalinensis) from biological invasions. We...

Data from: Genomic reconstruction of 100 000-year grassland history in a forested country: population dynamics of specialist forbs

Yuichi Yamaura, Ayu Narita, Yoshinobu Kusumoto, Atsushi J. Nagano, Ayumi Tezuka, Toru Okamoto, Hikaru Takahara, Futoshi Nakamura, Yuji Isagi & David Lindenmayer
Grassland ecosystems worldwide have been extensively converted to other land uses and are globally imperiled. Because many grasslands have been maintained by human activities, understanding their origin and history is fundamentally important to better contemporary management. However, existing methods to reconstruct past vegetation can produce contrasting views on grassland history. Here, we inferred demographic histories of 40 populations of four grassland forb species throughout Japan using high-resolution genome sequences and model-flexible demographic simulation based on...

Registration Year

  • 2019

Resource Types

  • Dataset


  • Forestry and Forest Products Research Institute
  • Kyoto University
  • Hokkaido Research Organization
  • Hokkaido University
  • Yamagata Prefectural Education Institute
  • Kyoto Prefectural University
  • Yamagata University
  • Ryukoku University
  • Australian National University
  • Tohoku University