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Article
Divergence of the Host-Associated Microbiota with the Genetic Distance of Host Individuals Within a Parthenogenetic Daphnia Species
The taxonomic composition of the microbiota in the gut and epidermis of animals is known to vary among genetically and physiologically different host individuals within the same species. However, it is not cle...
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Article
Open AccessVarying stages of ecological succession in lakes subdivided by volcanic eruptions at Akan Caldera, Japan
Ecological succession within lakes generally proceeds as eutrophication and shallowing occur and the aquatic biota of the lakes is altered. The eutrophication rate depends on the lake size and the area and fer...
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Article
The first report of the non-indigenous Chydorus brevilabris Frey, 1980 (Crustacea: Cladocera) in Asian freshwaters
Chydorus sphaericus (O.F. Müller, 1776) (Crustacea: Cladocera) sensu stricto is distributed in Europe: C. sphaericus-like organisms in other regions represent a group of undescribed species that closely resemble ...
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Article
Open AccessRNA-seq analysis to identify genes related to resting egg production of panarctic Daphnia pulex
The genus Daphnia switches its reproductive mode from subitaneous egg production to resting egg production in response to environmental stimuli. Although this life history trait is essential for surviving unsuita...
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Chapter and Conference Paper
Zooplankton Classification Using Hierarchical Attention Branch Network
Plankton is recognized as one of the most important indicators of the health of aquatic ecosystems and water quality. Surveys of plankton populations in oceans and lakes have been conducted manually. Plankton ...
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Article
Open AccessInvasions of an obligate asexual daphnid species support the nearly neutral theory
To verify the “nearly neutral theory (NNT),” the ratio of nonsynonymous to synonymous substitutions (dN/dS) was compared among populations of different species. To determine the validity of NNT, however, populati...
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Article
Long-term changes in morphological traits of Daphnia pulex in Lake Fukami-ike, Japan
How a population adapts to environmental changes is a central topic in ecology, but long-term changes in the phenotype of an organism have rarely been studied in aquatic systems. In this study, we examined the...
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Article
Differential intraspecific genetic variations of the closely related, wide-ranged freshwater copepods Cyclops vicinus Uljanin, 1875 and C. kikuchii Smirnov, 1932
Although Cyclops vicinus Uljanin, 1875 and C. kikuchii Smirnov, 1932 are broadly distributed in Eurasia, the genetic divergences between European and Asian populations have been investigated in neither species. I...
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Article
Open AccessA unified framework for herbivore-to-producer biomass ratio reveals the relative influence of four ecological factors
The biomass ratio of herbivores to primary producers reflects the structure of a community. Four primary factors have been proposed to affect this ratio, including production rate, defense traits and nutrient ...
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Article
Temporal β-diversity of zooplankton at various time scales in a small mountain lake
To examine how compositional changes in a community vary depending on time scales, we estimated temporal β-diversity of zooplankton in Lake Hataya Ohnuma, a small lake in Yamagata, Japan. The zooplankton communit...
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Article
The taxonomic position of Asian Holopedium (Crustacea: Cladocera) confirmed by morphological and genetic analyses
The cladoceran Holopedium gibberum Zaddach, 1855 (Ctenopoda: Holopediidae) was once thought to occur broadly in the northern hemisphere, but its cryptic sister species was recently separated from H. gibberum sens...
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Article
Open AccessEvolution of asexual Daphnia pulex in Japan: variations and covariations of the digestive, morphological and life history traits
Several genetic lineages of obligate parthenogenetic Daphnia pulex, a common zooplankton species, have invaded Japan from North America. Among these, a lineage named JPN1 is thought to have started colonization a...
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Article
The role of spatial and temporal variations in habitat uses and food habits of larvae in persistent occurrence of multiple odonate species in Mizorogaike Pond, Kyoto, Japan
Larvae of many odonate species commonly appear within the same freshwater ecosystem. However, it remains unknown whether there is a dietary separation among the larvae of different species. In this study, we c...
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Article
Open AccessRiver Metabolism along a Latitudinal Gradient across Japan and in a global scale
Since temperature is a key factor affecting photosynthetic and respiration rates, the rates of gross primary production (GPP) and ecosystem respiration (ER) are expected to be lower for rivers at higher latitu...
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Article
Correction to: Evidence of multiple introductions and genetic admixture of the Asian brush-clawed shore crab Hemigrapsus takanoi (Decapoda: Brachyura: Varunidae) along the Northern European coast
It is our mistake that the Acknowledgements in the original version did not include Jean-Claude Dauvin, Jean-Philippe Pezy, Benoit Gouillieux, Guy Bachelet, Karsten Reise, and Jonas Geburzi, who kindly provide...
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Article
Evidence of multiple introductions and genetic admixture of the Asian brush-clawed shore crab Hemigrapsus takanoi (Decapoda: Brachyura: Varunidae) along the Northern European coast
The Asian brush-clawed shore crab Hemigrapsus takanoi is a non-indigenous species along the Northern European coast. Although the history of range expansion of European H. takanoi has been well-documented, little...
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Article
Open AccessFilling the gaps in ecological studies of socioecological systems
Our human-dominant world can be viewed as being built up in two parts, social and ecological systems, each consisting of multi-level organizations that interact in a complex manner. However, there are knowledg...
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Article
Erratum to: Reconstructing the Invasion History of the Asian shorecrab, Hemigrapsus sanguineus (De Haan 1835) in the Western Atlantic
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Article
Open AccessEcological and genetic impact of the 2011 Tohoku Earthquake Tsunami on intertidal mud snails
Natural disturbances often destroy local populations and can considerably affect the genetic properties of these populations. The 2011 Tohoku Earthquake Tsunami greatly damaged local populations of various coa...
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Article
Microsatellite records for volume 9, issue 1
