Bulletin of the Shikoku Institute of Natural History NO.8
Queens of eusocial wasps of the subfamily Vespinae were collected with bait-traps set at the experimantal forest of the Shikoku Research Center, Forestry and Forest Products Research Institute in Kochi City, southwestern Japan in 2014. A total of 157 vespine wasps comprising of five Vespa species and one Vespula species were recorded. Among them, Vespa amalis was dominant at this site.
高知県と愛媛県におけるタワヤモリ Gekko tawaensis の新産地
The occurrence of Gekko tawaensis, an endemic lizard to western Japan was confirmed from six new localities
in Kochi and five in Ehime Prefectures on Shikoku Island. The present record
from Geisei Village in kochi Prefecture fills a zoogeographical gap of
G. tawaensis on the coast between Kochi and Tokushima Prefectures.
Lates japonicus, an endemic fish to the Pacific coast of western Japan, is recently known
as Japanese lates or akame. The occurrence of larvae, juveniles and young
smaller than about 100mm SL of akame has been restricted to eelgrass, Zostera japonica beds in tidal zones. This study revealed that juveniles and young ranging
from 8.6 to 106.0mm in SL frequently occurred in brackish water plant communities
other than Z. japonica. Communities of Vallisneria asiatica seemed to be important habitats for these fishes, because this plant occurred
in many places and sometime formed pure and large communities. Mixed communities
of Potamogeton malaianus and Myriphyllum spicatum were also important in upper tidal zone of the Koso River where no Z. japonicus beds were found. In addition, findings of these fishes from torn-off blades
of V. asiatica and communities of Pharagmites australis, which forms extensive stands, strongly indicate that they adapt more
diverse environments than previously thought...