63 citations · 113 across the 9 of their papers we have counts for
9 papers
Total consensus under high reproductive-variance conditions
Hiro-Sato Niwa
Star-shaped branching patterns of genealogies are common in marine species. High-fecundity marine populations are characterized by low ratios of effective to actual population size…
Broken symmetry of recruitment fluctuations in marine fishes: Lévy-stable laws and beyond
Hiro-Sato Niwa
Recruitment is calculated by summing random offspring-numbers entering the population, where the number of summands (i.e. spawning population size) is also a random process. A prio…
Hatchery-induced transition of the effective size in a Pareto population
Hiro-Sato Niwa
It seems paradoxical to have observed the absence of reduced effective population sizes under marine hatchery practices. This paper studies the Ryman-Laikre, or tw…
Fluctuation scaling in Lévy-stable recruitment of marine fishes in randomly varying environments
Hiro-Sato Niwa
This paper studies the scaling properties of recruitment fluctuations in randomly varying environments, for abundant marine species with extreme reproductive behavior. Fisheries st…
Reciprocal symmetry breaking in Pareto sampling
Hiro-Sato Niwa
Let be a sample of random variables normalized by their sum, such that . The may represent the weights of valleys in a spi…
Exploitation dynamics of fish stocks
Hiro-Sato Niwa
I address the question of the fluctuations in fishery landings. Using the fishery statistics time-series collected by the Food and Agriculture Organization of the United Nations si…