12 Works

Ancient and modern colonization of North America by hemlock woolly adelgid, Adelges tsugae (Hemiptera: Adelgidae), an invasive insect from East Asia

Nathan P. Havill, Shigehiko Shiyake, Ashley Lamb Galloway, Robert G. Foottit, Guoyue Yu, Annnie Paradis, Joseph Elkinton, Michael E. Montgomery, Masakazu Sano, Adalgisa Caccone & Annie Paradis
Hemlock woolly adelgid, Adelges tsugae, is an invasive pest of hemlock trees (Tsuga) in eastern North America. We used 14 microsatellites and mitochondrial COI sequences to assess its worldwide genetic structure and reconstruct its colonization history. The resulting information about its life cycle, biogeography and host specialization could help predict invasion by insect herbivores. We identified eight endemic lineages of hemlock adelgids in central China, western China, Ulleung Island (South Korea), western North America, and...

Data from: How many broadleaved trees are enough in conifer plantations? The economy of land sharing, land sparing, and quantitative targets

Yuichi Yamaura, Yasushi Shoji, Yasushi Mitsuda, Hajime Utsugi, Takahiro Tsuge, Koichi Kuriyama & Futoshi Nakamura
1. For biodiversity conservation to be an effective and significant social investment, non-marketed values of biodiversity conservation and its associated opportunity costs should be evaluated in monetary terms. 2. In this study, we measured the willingness to pay (WTP) for bird abundance using a choice experiment (CE) based on the random utility model. We performed a cost–benefit analysis to identify the optimal proportion of broad-leaved trees in conifer plantations on a volume basis to maximize...

Data from: Genome of the pitcher plant Cephalotus reveals genetic changes associated with carnivory

Kenji Fukushima, Xiaodong Fang, David Alvarez-Ponce, Huimin Cai, Lorenzo Carretero-Paulet, Cui Chen, Tien-Hao Chang, Kimberley M. Farr, Tomomichi Fujita, Yuji Hiwatashi, Yoshikazu Hoshi, Takamasa Imai, Masahiro Kasahara, Pablo Librado, Likai Mao, Hitoshi Mori, Tomoaki Nishiyama, Masafumi Nozawa, Gergő Pálfalvi, Stephen T. Pollard, Julio Rozas, Alejandro Sánchez-Gracia, David Sankoff, Tomoko F. Shibata, Shuji Shigenobu … & Mitsuyasu Hasebe
Carnivorous plants exploit animals as a nutritional source and have inspired long-standing questions about the origin and evolution of carnivory-related traits. To investigate the molecular bases of carnivory, we sequenced the genome of the heterophyllous pitcher plant Cephalotus follicularis, in which we succeeded in regulating the developmental switch between carnivorous and non-carnivorous leaves. Transcriptome comparison of the two leaf types and gene repertoire analysis identified genetic changes associated with prey attraction, capture, digestion and nutrient...

Data from: Flight paths of seabirds soaring over the ocean surface enable measurement of fine-scale wind speed and direction

Yoshinari Yonehara, Yusuke Goto, Ken Yoda, Yutaka Watanuki, Lindsay C. Young, Henri Weimerskirch, Charles-André Bost & Katsufumi Sato
Monitoring ocean surface winds is essential for understanding ocean and atmosphere interactions and weather forecasts. However, wind measured by satellite scatterometers and buoys are spatially and temporally coarse, particularly in coastal areas. We deployed small global positioning system units on soaring seabirds to record their tracks. Seabirds were accelerated by tail winds or slowed down by head winds during flight, so their flight speed changed in relation to wind speed and direction. Taking advantage of...

Data from: A test of the effects of timing of a pulsed resource subsidy on stream ecosystems

Takuya Sato, Rana El-Sabaawi, Kirsten Campbell, Tamihisa Ohta, John S. Richardson & Rana W. El-Sabaawi
Spatial resource subsidies can alter bottom-up and top-down forces of community regulation across ecosystem boundaries. Most subsidies are temporally variable, and recent theory has suggested that consumer-resource dynamics can be stabilized if the peak timing of a subsidy is desynchronized with that of prey productivity in the recipient ecosystem. However, magnitude of consumer responses per se could depend on the subsidy timing, which may be a critical component for community dynamics and ecosystem processes. The...

Data from: Disentangling relationships between plant diversity and decomposition processes under forest restoration

Saori Fujii, Akira S. Mori, Dai Koide, Kobayashi Makoto, Shunsuke Matsuoka, Takashi Osono & Forest Isbell
Biodiversity has been elucidated to be one of the major factors sustaining ecosystem functioning. The vast majority of studies showing a relationship between biodiversity and ecosystem functioning have come from experiments, and this knowledge has not yet been applied to most real-world cases of conservation and management. This is especially true in forest ecosystems, characterized by the dominance of long-lived organisms (trees) and high levels of structural complexity and environmental heterogeneity. To apply biodiversity–function relationships...

Data from: An aquatic vertebrate can use amino acids from environmental water

Noboru Katayama, Kobayashi Makoto & Osamu Kishida
Conventional food-web theory assumes that nutrients from dissolved organic matter are transferred to aquatic vertebrates via long nutrient pathways involving multiple eukaryotic species as intermediary nutrient transporters. Here, using larvae of the salamander Hynobius retardatus as a model system, we provide experimental evidence of a shortcut nutrient pathway by showing that H. retardatus larvae can use dissolved amino acids for their growth without eukaryotic mediation. First, to explore which amino acids can promote larval growth,...

Data from: Effects of land use and climate on the distribution of the Jungle Nightjar Caprimulgus indicus in Hokkaido, northern Japan

Kazuhiro Kawamura, Yuichi Yamaura, Masayuki Senzaki, Yuki Yabuhara, Takumi Akasaka & Futoshi Nakamura
Although the relative importance of land use and climate to large-scale bird distributions has received great attention, it is difficult to separate the effects of land use and climate, and there are few studies on bird abundance distributions on a large scale. Here, we examined the effects of land use and climate on the abundance of the nocturnal Jungle Nightjar Caprimulgus indicus in Hokkaido, northern Japan. We chose 125 sampling sites with low correlations (|r|...

Data from: Diet and birdsong: short-term nutritional enrichment improves songs of adult Bengalese finch males

Kentaro Yamada & Masayo Soma
Song is a notable sexual signal of birds, and serves as an honest indicator of male quality. Condition dependence of birdsong has been well examined from the viewpoint of the developmental stress hypothesis, which posits that complex songs assure fitness because learned acoustic features of songs are especially susceptible to early-life stress that young birds experience in song learning periods. The effect of early stress on song phenotypes should be crucial, especially in age-limited song...

Data from: A molecular phylogeny and revised higher-level classification for the leaf-mining moth family Gracillariidae and its implications for larval host-use evolution

Akito Y. Kawahara, David Plotkin, Issei Ohshima, Carlos Lopez-Vaamonde, Peter R. Houlihan, Jesse W. Breinholt, Atsushi Kawakita, Lei Xiao, Jerome C. Regier, Donald R. Davis, Tosio Kumata, Jay-Cheon Sohn, Jurate De Prins, Charles Mitter & JAE-CHEON SOHN
Gracillariidae are one of the most diverse families of internally feeding insects, and many species are economically important. Study of this family has been hampered by lack of a robust and comprehensive phylogeny. In the present paper, we sequenced up to 22 genes in 96 gracillariid species, representing all previously recognized subfamilies and genus groups, plus 20 outgroups representing other families and superfamilies. Following objective identification and removal of two rogue taxa, two datasets were...

Data from: Characterization of the synoptic-scale diversity, biogeography and size distribution of diatoms in the North Pacific

Koji Sugie & Koji Suzuki
The diversity, biogeography, and size distribution of diatoms in the North Pacific and underlying mechanisms shaping those patterns have little been characterized despite their importance in marine ecosystems. Here, we examined the community structure of diatoms in the surface and subsurface chlorophyll a maximum (SCM) layers of the North Pacific using light and scanning electron microscopy. Diatom carbon biomass in both the subarctic and temperate coastal regions was higher than that in the open subtropical...

Data from: A multistate dynamic site occupancy model for spatially aggregated sessile communities

Keiichi Fukaya, J. Andrew Royle, Takehiro Okuda, Masahiro Nakaoka & Takashi Noda
Estimation of transition probabilities of sessile communities seems easy in principle but may still be difficult in practice because resampling error (i.e. a failure to resample exactly the same location at fixed points) may cause significant estimation bias. Previous studies have developed novel analytical methods to correct for this estimation bias. However, they did not consider the local structure of community composition induced by the aggregated distribution of organisms that is typically observed in sessile...

Registration Year

  • 2016
    12

Resource Types

  • Dataset
    12

Affiliations

  • Hokkaido University
    12
  • Kyoto University
    5
  • Forestry and Forest Products Research Institute
    2
  • Nagoya University
    2
  • University of Tokyo
    2
  • University of Massachusetts Amherst
    1
  • Kyoto Prefectural University
    1
  • Osaka Museum of Natural History
    1
  • Mokpo National University
    1
  • University of Minnesota
    1