Japan is considered a global hot spot of biodiversity. With regard to species diversity, insects
are no exception. To date, more than 32,000 insect species have been identified in Japan …

This study was presented at the International Conference on Ephemeroptera and Plecoptera
held in Aracruz, Brazil from June 3–8, 2018. Higher-level relationships among major mayfly …

Abstract The Japanese Islands have a high degree of biodiversity, with almost the entire
area being designated as a 'global hotspot of biodiversity'. There is no doubt that many …

Organisms that inhabit the alpine zone tend to have distribution areas that are isolated and
scattered in patches, in effect 'sky islands'. We focused on Pseudostenophylax caddisflies, a …

Studying alternative forms of reproduction in natural populations is of fundamental
importance for understanding the costs and benefits of sex. Mayflies are one of the few …

Exploring how organisms overcome geographical barriers to dispersal is a fundamental
question in biology. Passive long-distance dispersal events, although infrequent and …

Appasus japonicus and A. major, two belostomatid species of the giant water bug found in
parts of East Asia, have very similar morphological characteristics and ecological niches …

We focused on the genetic structure and evolutionary divergence of a typical habitat
generalist mayfly, Isonychia japonica, inhabiting rivers widely distributed across eastern …

Tarantula spider systematics has long been considered problematic. Species diagnosis and
phylogenetic hypotheses have historically relied on morphological features, which are …

Species distribution area is determined by both biotic and abiotic factors. In particular,
significant geological events influence the biodiversity and the genetic structures of the …