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Article
Open AccessAuthor Correction: Grazing enhances species diversity in grassland communities
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Article
Open AccessGrazing enhances species diversity in grassland communities
In grassland studies, an intermediate level of grazing often results in the highest species diversity. Although a few hypotheses have been proposed to explain this unimodal response of species diversity to gra...
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Article
Open AccessCharacteristics of mitosis in the gametophyte cells of the marine green alga Monostroma angicava
Some marine algae exhibit several characteristics of mitosis (e.g., the timing of mitosis such as diurnal periodicity) that are unique from those of land plants. Not only the timing but also other characterist...
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Article
Within-clutch variability in gamete size arises from the size variation in gametangia in the marine green alga Monostroma angicava
Within-clutch gamete size variability in Monostroma angicava.
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Article
Open AccessAsymptotic stability of a modified Lotka-Volterra model with small immigrations
Predator-prey systems have been studied intensively for over a hundred years. These studies have demonstrated that the dynamics of Lotka-Volterra (LV) systems are not stable, that is, exhibiting either cyclic ...
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Article
Open AccessMulti-species coexistence in Lotka-Volterra competitive systems with crowding effects
Classical Lotka-Volterra (LV) competition equation has shown that coexistence of competitive species is only possible when intraspecific competition is stronger than interspecific competition, i.e., the specie...
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Article
Open AccessEvidence for equal size cell divisions during gametogenesis in a marine green alga Monostroma angicava
In cell divisions, relative size of daughter cells should play fundamental roles in gametogenesis and embryogenesis. Differences in gamete size between the two mating types underlie sexual selection. Size of d...
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Article
Open AccessA geometrical approach explains Lake Ball (Marimo) formations in the green alga, Aegagropila linnaei
An extremely rare alga, Aegagropila linnaei, is known for its beautiful spherical filamentous aggregations called Lake Ball (Marimo). It has long been a mystery in biology as to why this species forms 3D ball-lik...
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Article
Open AccessThe paradox of enrichment in phytoplankton by induced competitive interactions
The biodiversity loss of phytoplankton with eutrophication has been reported in many aquatic ecosystems, e.g., water pollution and red tides. This phenomenon seems similar, but different from the paradox of en...
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Article
Sexual fusion of protoplasts in a marine green alga, Bryopsis plumosa
We isolated protoplasts from male and female gametophytes of a strictly dioecious strain of the coenocytic marine green alga Bryopsis plumosa. The protoplasts successfully developed into macrothalli. These in tur...
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Article
Evolution of gamete size in primitive taxa without mating types
An ESS model to better understand the evolutionary dynamics of a primitive non-mating type gamete size was developed with reference to the PBS (Parker, Baker and Smith’s) theory, which was based on total numbe...
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Article
Effects of gamete behavior and density on fertilization success in marine green algae: insights from three-dimensional numerical simulations
We developed a numerical simulation of mating experiment to study effects of phototactic gamete behavior and density on fertilization success, using the C++ programming language, and pseudo-parallelization met...
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Chapter and Conference Paper
Lattice Population and Optimality of Sex Ratio: Effect of Sterile Male
To know the optimality under given conditions is one of most important problems in various fields. In the present paper, we focus on the optimality of sex ratio α in animals. So far, the optimal sex ratio has bee...
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Article
Spatial coexistence of phytoplankton species in ecological timescale
The species diversity of phytoplankton is usually very high in wild aquatic systems, as seen in the paradox of plankton. Coexistence of many competitive phytoplankton species is extremely common in nature. How...
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Article
Simulation of gamete behaviors and the evolution of anisogamy: reproductive strategies of marine green algae
In marine green algae, isogamous or slightly anisogamous species are taxonomically widespread. They produce positively phototactic gametes in both sexes. We developed a new numerical simulator of gamete behavi...
