Papers by Tsuneo Sekijima
Effects of dioxins on Japanese field mouse, <i>Apodemus speciosus</i> -Polymorphism analysis of AhR related to dioxin sensitivity
Outbreaks of Salmonella naestved infection in rearing calves
National Institute of Animal Health quarterly, 1979
Author response for "Sensitivity analysis of collision risk at wind turbines based on flight altitude of migratory waterbirds
Dialogues with community constituents are indispensable for scientists whose research fields and ... more Dialogues with community constituents are indispensable for scientists whose research fields and applications are closely related with communities throughout the research processes of consensus building on executions of research projects, making decisions on research policies, sharing the products of the projects, corrections. What kind of guidance is required for scientists to maintain a dialogue with the society? Using mailing list and web portfolio, we recorded a process of planning and executing a science cafe with two researchers who research for reintroduction of Crested Ibis (Toki) into Sado Island. Additionally, to understand the reality of the research, we observed the field research by the scientists in Sado Island. This record and analysis about difficulty and the solution of the science cafe serves scientists as a effectively guidance.
Evaluation of vertical habitat use in Apodemus argenteus and A. speciosus, by the footprint recording method
Japanese Journal of Ecology, 1997
Author response for "Sensitivity analysis of collision risk at wind turbines based on flight altitude of migratory waterbirds
Parasitology Research, Mar 1, 2003
The successful maintenance of Hymenolepis pseudodiminuta, isolated from Apodemus speciosus, is de... more The successful maintenance of Hymenolepis pseudodiminuta, isolated from Apodemus speciosus, is described for the first time. In the laboratory, the flour beetle, Tribolium confusum, and F344 rats could serve as intermediate and definitive hosts, respectively. In single worm infections with H. pseudodiminuta, which were carried in two groups of rats, adult worms were recovered from eight and seven out of ten rats, respectively, while Hymenolepis diminuta was found in all of ten rats 6 weeks after inoculation. The worm weight of H. pseudodiminuta in rats was significantly lower than that of H. diminuta. The egg output of H. pseudodiminuta occurred significantly earlier than that of H. diminuta. The number of eggs in the faeces of H. diminutainfected rats was approximately twofold higher than the number in the faeces of H. pseudodiminuta-infected rats throughout the course of the infection. Mucosal mast cells in rats infected with H. pseudodiminuta were significantly more common than in rats infected with H. diminuta. No detectable IgE antibodies were found in the uninfected and H. diminuta-infected rat groups; however total IgE was detected in H. pseudodiminutainfected rats but the concentrations were variable between individuals.
Radar is a powerful technology for surveys of avian movements. Validating the accuracy of radar d... more Radar is a powerful technology for surveys of avian movements. Validating the accuracy of radar detection is an essential step when establishing quantitative criteria for counting bird flocks. Previous studies on accuracy verification have focused on trajectory data after tracking echoes. However, as tracking algorithms differ among researchers, so radar detection performance has not been accurately validated. This study clarifies the positional and biological factors that influence the probability of detection (POD) and area (pixel size) of echoes on X-band marine radar. As positional factors, distance was found to have a negative effect on POD and pixel size, while elevation angle was a positive effect on POD. We confirmed that biological factors included species differences (body weight, wingspan, and soaring behavior) and waterfowl flock size. Body weight and flock size positively affected POD and pixel size. In predicting detection performance, the survey distance required to a...
Sensitivity analysis of collision risk at wind turbines based on flight altitude of migratory waterbirds
Ecological Solutions and Evidence
Transformative change of paddy rice systems for biodiversity: A case study of the crested ibis certified rice system in Sado Island, Japan
Agroecology and Sustainable Food Systems
Limiting factors to reproductive activity in Japanese Golden Eagle: Effects of food-switching on fledgling success during nestling period
The efficiency of line-thinning for restorating foraging habitat of Golden eagles
Nihon Seitai Gakkaishi, 2016
Improvement of foraging sites for restoration of Japanese crested ibis
農耕地で繁殖するタンチョウの採餌環境への順応性
Japanese Journal of Conservation Ecology, 2004
Nihon Seitai Gakkaishi, 1997
A new technique for inducing self-feeding in captive Japanese little horseshoe bats, <i>Rhinolophus cornutus</i>
Honyurui Kagaku (Mammalian Science), 2019
Proposing the forest management plan to restore the foraging habitats of the Golden Eagles
POPULATON STRUCTURE OF ASIAN CHIPMUNK (TAMIAS SIBIRICUS) ANALYZED BY mtDNA COII SEQUENCE(Taxonomy and Systematics)(Proceedings of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
Uploads
Papers by Tsuneo Sekijima