The sequence of local recolonization of warm-water marine molluscan species during a deglacial warming climate phase: a case study from the early Pleistocene of the Sea of Japan

AbstractPaleoecological studies enhance our understanding of biotic responses to climate change because they consider long timescales not accessible through observational and experimental studies. Using predatory drillholes produced on fossil bivalve shells by carnivorous gastropods, we provide an example of how climate change affected predator–prey interactions. We quantitatively examine temporal changes in fossil molluscan assemblages and predation patterns from the Pleistocene Japan Sea, which experienced drastic environmental changes in relation to glacial–interglacial climate cycles. We found significant changes in predation patterns associated with a decline in the abundance of warm-water molluscan species. Climate-mediated fluctuations in the eustatic sea level and resultant weakening of the Tsushima Warm Current caused a decline in a warm-water shell-drilling predator, which moderated the predation pressure and size relationship between the predators and the bivalve prey. Our results indicate that climate-mediated range shifts of species in present-day and future marine ecosystems can likewise increase altered predator–prey interactions.

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The evolution of the Tsushima Current during the early Pleistocene in the Sea of Japan: An example from marine isotope stage (MIS) 47

Global and Planetary Change ◽

10.1016/j.gloplacha.2012.05.015 ◽

2012 ◽

Vol 92-93 ◽

pp. 162-178 ◽

Cited By ~ 7

Author(s):

Peter W. Hoiles ◽

Stephen J. Gallagher ◽

Akihisa Kitamura ◽

John M. Southwood

Keyword(s):

Sea Of Japan ◽

Marine Isotope Stage ◽

Early Pleistocene ◽

The Sea Of Japan ◽

Tsushima Current

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A Simulation Analysis for Environmental and Economic Impact Evaluations : A Case Study on the Land/Sea Interface and Catchment Areas in the Sea of Japan Region

Studies in Regional Science ◽

10.2457/srs.36.977 ◽

2006 ◽

Vol 36 (4) ◽

pp. 977-991

Author(s):

Katsuhiro SAKURAI ◽

Tetsuya TAKAHASHI ◽

Takeshi MIZUNOYA ◽

Shintaro KOBAYASHI ◽

Yoshiro HIGANO

Keyword(s):

Economic Impact ◽

Sea Of Japan ◽

Simulation Analysis ◽

The Sea Of Japan ◽

Catchment Areas

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Pleistocene deep-sea ostracods from the Oki Ridge, Sea of Japan (IODP Site U1426) and condition of the intermediate water

Quaternary Research ◽

10.1017/qua.2017.68 ◽

2017 ◽

Vol 88 (3) ◽

pp. 430-445 ◽

Cited By ~ 1

Author(s):

Tatsuhiko Yamaguchi ◽

Kentaro Kuroki ◽

Katsura Yamada ◽

Takuya Itaki ◽

Kaoru Niino ◽

...

Keyword(s):

Sea Of Japan ◽

Deep Sea ◽

Japan Sea ◽

Winter Monsoon ◽

Early Pleistocene ◽

Circulation System ◽

The Sea Of Japan ◽

Intermediate Water ◽

Oxygen Isotope Stage ◽

Integrated Ocean Drilling Program

AbstractThe Sea of Japan (also termed the East Sea) has a circulation system isolated from the Pacific Ocean and East China Sea. The East Asian winter monsoon drives the circulation system and cools the Tsushima Warm Current (TWC) to form the Japan Sea Intermediate–Proper Water (JSIPW). The intermediate water conveys oxygen to deep-sea floors, which is available for benthic animals. During the Pliocene (3.5–2.8 Ma), Temperate Intermediate Water (TIW) was formed under the weak winter monsoon, and extinct ostracod TIW taxa were found. Little is known about early Pleistocene intermediate water and the extinction mode of benthic ostracods. We studied radiolarians and ostracods from deep-sea sediments between 2.0 and 1.3 Ma (Marine Oxygen Isotope Stage [MIS] 77 to MIS 41) at Integrated Ocean Drilling Program Site U1426, Sea of Japan. The ostracod faunas contained TIW and JSIPW taxa. The radiolarian subtropical-water taxa and the JSIPW ostracods indicate a small influx of the TWC and the JSIPW. The TIW occasionally expanded to the middle bathyal zone. By analogy with the relationship between the modern JSIPW and winter monsoon, weak winter monsoon possibly caused gentle temperature gradients in the water column and the expansion of the TIW. The JSIPW taxa expanded their ranges into the deep sea during interglacial periods.

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