A5059724163- Turtle Biology and Conservation
- Amphibian and Reptile Biology
- Bird parasitology and diseases
- Avian ecology and behavior
- Genetic diversity and population structure
- Ichthyology and Marine Biology
- Marine animal studies overview
- Animal Behavior and Reproduction
- Genomics and Phylogenetic Studies
- Chromosomal and Genetic Variations
- Marine Biology and Ecology Research
- Paleontology and Evolutionary Biology
- Chromatin Remodeling and Cancer
- Wildlife Ecology and Conservation
- Protein Degradation and Inhibitors
- Hypothalamic control of reproductive hormones
- Neuroendocrine regulation and behavior
- Forest Insect Ecology and Management
- Signaling Pathways in Disease
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Cephalopods and Marine Biology
- Marine and coastal plant biology
- Reproductive biology and impacts on aquatic species
Tohoku University
2019-2024
Kyoto University
2013-2016
Graduate School USA
2014
Kyushu University
2007-2010
Abstract Aim To examine the genetic structure and global phylogeography of endangered green sea turtle, Chelonia mydas , in light past climatic events current conservation needs. Location Tropical subtropical beaches around world. Methods We analysed 386 base pairs mitochondrial (mt) DNA control region 4,878 individual nesting turtle samples from 127 rookeries globally. used phylogeographic analysis to assess how demographic history, dispersal barriers gene flow have led distribution mt...
Loss of genetic diversity is known to decrease the fitness species and a critical factor that increases extinction risk. However, there little evidence for higher vulnerability risk in endangered based on genomic differences between non-endangered species. This true even case functional loci, which are more likely relate than neutral loci. Here, we compared genome-wide diversity, proportion duplicated genes (
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 24:171-179 (2014) - DOI: https://doi.org/10.3354/esr00592 Juvenile green turtles on northern edge of their range: mtDNA evidence long-distance westward dispersals in Pacific Ocean Hideaki Nishizawa1,*, Tomoko Narazaki2,5, Takuya Fukuoka2, Katsufumi Sato2, Hamabata3, Masato Kinoshita4, Nobuaki Arai1,6 1Graduate School...
Malignant rhabdoid tumor (MRT) is a rare, highly aggressive pediatric malignancy that primarily develops during infancy and early childhood. Despite the existing standard of intensive multimodal therapy, prognosis patients with MRT dismal; therefore, greater understanding biology this disease required to establish novel therapies. In study, we identified tumorigenic sub-population in MRT, based on expression CD146 (also known as melanoma cell adhesion molecule), molecule expressed by neural...
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 30:83-93 (2016) - DOI: https://doi.org/10.3354/esr00724 Fine-scale genetic population structure of loggerhead turtles in Northwest Pacific Y. Matsuzawa1,2, N. Kamezaki2,3, T. Ishihara1,2, K. Omuta4, H. Takeshita5, Goto6, Arata7, Honda8, Kameda9, Kashima10, M. Kayo1, I. Kawazu11, J. Kodama5, Kumazawa12, Kuroyanagi13,...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 600:151-163 (2018) - DOI: https://doi.org/10.3354/meps12657 Stock composition of green turtles Chelonia mydas foraging in Ryukyu Archipelago differs with size class Tomoko Hamabata1,8,*, Hideaki Nishizawa2, Isao Kawazu3,4, Kazunari Kameda5, Naoki Kamezaki5,6,7, Tsutomu Hikida1 1Graduate School Science, Kyoto...
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 24:85-93 (2014) - DOI: https://doi.org/10.3354/esr00588 Genetic composition of loggerhead turtle feeding aggregations: migration patterns in North Pacific Hideaki Nishizawa1,*, Tomoko Narazaki2,5, Takuya Fukuoka2, Katsufumi Sato2, Hamabata3, Masato Kinoshita4, Nobuaki Arai1,6 1Graduate School Informatics, Kyoto...
Recent studies have shown an increasing mean straight carapace length (SCL) of foraging green turtles Chelonia mydas around the Yaeyama Islands, Japan, compared to that 20 yr ago. This trend is attributed reduced juvenile mortality resulting from a decline in sea turtle fisheries. In this aggregation, proportions originating different populations (genetic stocks) are known vary according size; for Ryukyu Archipelago and Ogasawara (Japanese populations), proportion 50-70 cm SCL size class...
Although studies using genome-wide single nucleotide polymorphisms (SNPs) are growing in non-model species, it is still difficult to prepare sufficient high-quality genomic DNA (gDNA) for population analyses many wild species. In this study, we first analyzed the structure of green turtles North Pacific; four regions Japan (the Yaeyama, Okinawa, Amami, and Ogasawara Islands), Southeast Asia, Taiwan, Federated States Micronesia, Republic Marshall Islands, Central or Eastern Pacific (C/E...
Understanding the current status and recent development of population genetics connectivity sea turtles is crucial for effective conservation management species. Five turtle species, green ( Chelonia mydas ), loggerhead Caretta caretta hawksbill Eretmochelys imbricata olive ridley Lepidochelys olivacea ) leatherback Dermochelys coriacea are recorded in East Asia Region situated western side North Pacific Ocean. We compiled information from 35 published genetic studies on five with a focus...
Abstract Loss of genetic diversity increases the risk extinction a population through inbreeding depression. In addition, number deleterious variations, which might accumulate in small drift, can also make vulnerable. Rhododendron boninense is critically endangered azalea species, grows on Bonin Islands, UNESCO World Heritage Site; its size wild dropped to only single individual. Although governmental program for species conservation has been conducted, no successful natural regeneration or...
During late June and July in 2015, we tracked the postnesting migrations of 5 loggerhead turtles (Caretta caretta) green (Chelonia mydas) from a beach on Amami-Oshima Island (Amami) Ryukyu Archipelago, Japan, to identify potential adult foraging grounds these 2 species marine turtle. All loggerheads utilized East China Sea, but 4 took direct paths there while 1 turtle first traveled stayed within Sea Japan until water temperature area dropped around 13°C before moving into Sea. In contrast,...
The genetic structure of Streaked Shearwater Calonectris leucomelas, a seabird breeding on islands around Japan, was investigated using nuclear microsatellite markers at four colonies located in three geographically distinct areas (Pacific Ocean, Sea and Seto Inland Sea). To investigate independently natal dispersal patterns, we analyzed records recoveries birds banded Japan over 30-year period from 1971 to 2020. marker analysis showed little differentiation among the sites lack population...
Understanding the distribution range across life history of endangered animals is crucial for effective conservation and management planning. However, migratory green turtles with straight carapace lengths (SCLs) <35 cm have been rarely observed in northwestern Pacific. Information on wild an SCL this region therefore scarce. Historically, four individuals from Japanese coasts oceanic area Japan reported. From 2011 to 2013, we collected nine coastal waters. We reviewed existing literature...
DATA REPORT article Front. Mar. Sci., 28 March 2024Sec. Marine Megafauna Volume 11 - 2024 | https://doi.org/10.3389/fmars.2024.1328101
Genetic characteristics of North Pacific loggerhead turtles captured as bycatch in pound nets operating Muroto, Kochi, Japan were sampled to identify and estimate stock structure coastal foraging aggregations. Tissue samples obtained from juvenile, subadult adult 2005–2006 2008–2010. For each the years, 100 processed approximately 820 bp mitochondrial DNA control region sequenced. Straight carapace length ranged 56.3– 99.1 cm their life stages identified based on previous estimates size at...