Paleovegetation reconstruction of fossil forests dominated by Metasequoia and Glyptostrobus from the late Pliocene Kobiwako Group, central Japan

Yamakawa, Chiyomi; Momohara, Arata; Nunotani, Tomoo; Matsumoto, Midori

doi:10.2517/1342-8144(2008)12[167:proffd]2.0.co;2

Cited by 19 publications

(6 citation statements)

References 2 publications

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“…Despite the extensive study of fossil wood in paleoecological studies that span large amounts of geologic time, there has been only limited application of this proxy of past vegetation to guide restoration designs (Walker et al 2003). In fact, we may know more about the local-scale composition and structure of forests that are many thousands or millions of years old from studies of buried wood (Pregitzer et al 2000;Williams et al 2003Williams et al , 2008Yamakawa et al 2008) than we do about forests that existed at the time of European settlement in the eastern United States which were cut and cleared. Therefore, if adequate exposures are available and the tools of plant paleoecology are brought to bear on more recent buried wood deposits it would be possible to gain a higher resolution view of forest composition.…”

Section: Woodmentioning

confidence: 99%

A Paleoecological Perspective on Wetland Restoration

Williams

2011

Wetlands

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Paleoecological investigations of wetland sedimentary deposits offer the possibility of obtaining accurate reconstructions of base line conditions in the past. Plant remains, such as leaves, seeds, fruits, wood, and pollen, provide a window of variable temporal and spatial resolution into past environmental conditions at a particular site. These archives of physical and biological wetland ecosystem characteristics, if preserved, may be exploited to reconstruct the plant community at a single point in time. Moreover, changes in past plant community composition, hydrology, and the dynamics of wetland ecosystems through time may be better understood. This paper reviews the range of paleoecological information archived in wetland sedimentary deposits that may be understood in the restoration science context. This type of information gleaned by applying paleoecological techniques should provide reasonable targets for restoration ecologists working to improve the quality and quantity of ecosystem functions and services in wetlands.Undisturbed wetlands, by virtue of their position on the landscape and the specific properties of the plants that populate these ecosystems, archive proxies of past environmental information within their soils and sediments. In temperate North America the geomorphic settings for wetlands typically vary from locale to locale, including depressional, riverine or floodplain, and lacustrine, among others. Yet all wetlands share a common attribute; the inundation of soil by water at a duration or frequency that is sufficient to exclude flora and fauna intolerant of such conditions. Although this ecosystem trait provides wetland scientists a means to mechanistically define a wetland, from a paleoecological standpoint there is a more important consequence of hydric soil conditions; plant and animal remains are often preserved in the wet, oxygen-deficient soils. Moreover, most wetlands are depositional environments; places where sediment accumulation exceeds erosion, thereby providing B. A. LePage (ed.), Wetlands,

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Section: Woodmentioning

confidence: 99%

A Paleoecological Perspective on Wetland Restoration

Williams

2011

Wetlands

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“…Fossil representatives of this genus are quite abundant like Metasequoia and have been recorded since the early‐Early Cretaceous in middle to high latitudes of North America and Eurasia. The genus often occurs in riparian vegetation associated with Metasequoia (Yamakawa et al, , ), and it often co‐occurred with Taxodium during the Paleogene in the circum‐Japan Sea areas. According to LePage (), Glyptostrobus existed well on each continent until the Pliocene under various climate conditions.…”

Section: Resultsmentioning

confidence: 99%

Oligocene–Neogene fossil history of Asian endemic conifer genera in Japan and Korea

Yabe¹,

Jeong²,

Kim

et al. 2018

J of Sytematics Evolution

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Temporal and spatial changes of ten conifer genera that are endemic to East Asia were analyzed based on fossil data from humid temperate forests in the Japanese Islands and Korean Peninsula to elucidate the phytogeographic history, and to understand differences between those genera eliminated from the Japanese Islands and those that remained extant. All these genera, except for Thujopsis, have existed in the area since the Paleogene and remained in the Japanese islands after initial separation from the continent at the early–middle Miocene. Fossil representatives of locally extinct six genera have tendencies to adapt to wider ranges of climatic conditions than their modern relatives. Metasequoia, Glyptostrobus, and Taiwania began to change their distributions since the late Miocene possibly through habitat partitioning. Keteleeria, Pseudolarix, and Cunninghamia appeared to have expanded their habitat toward warmer conditions during the mid‐Miocene Climatic Optimum and then became restricted to warmer forest vegetation by the end of Pliocene. Overall changes in their distribution can be explained by climatic effects. On the contrary, three genera endemic to Japan (Sciadopitys, Cryptomeria, and Thujopsis) followed clearly different trends from the others. Cryptomeria and Thujopsis were especially adapted to cooler‐temperate climate and they retained their habitat areas in the northern part of Japan. During the late Miocene–Pliocene, the islands connected with the Eurasian continent again, which probably acted as a corridor for warm‐adapted genera to disperse southwest. Current data suggest that ecological requirements of each genus might be essential to determine whether they could survive on the Japanese Islands.

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“…2.8 Ma) and the Ass-Tmd2 (Tsukagoshi and TSRG, 1995); b, Iga clay bed of the Kobiwako Group (Miki, 1948); c, Yudani and the lowermost part of the Atago Formations (Momohara and Mizuno, 1999); d, lower part of the Atago Formation (Momohara and Mizuno, 1999); e, Kono Formation (Yasuda, 1958;Takemura, 1984); f, middle part of the Atago Formation (Momohara and Mizuno, 1999); g, Onbegawa (Momohara, 2013); h, upper part of the Atago Formation (Momohara and Mizuno, 1999); i, Sakuramura Formation (Momohara, 2013); j, Kobiwako Group (KRG, 1977); k, Echigawa fossil forest bed (Yamakawa et al, 2008); and l, Kobiwako Group (KRG, 1980). Lastly, "m" (Miki et al, 1957) is correlated with the Ma9 marine clay bed based on Huzita and Maeda (1985).…”

Section: Mismentioning

confidence: 99%

“…Autochthonous assemblages dominated by Metasequoia and Glyptostrobus in backmarsh sediments in the Kobiwako Group at ca. 1.85 Ma included Menyanthes trifoliata, a wetland plant (Yamakawa et al, 2008) which indicates prevailing cool-temperate climate conditions in the lowlands. The second oldest record showing cooltemperate climate conditions corresponds to the assemblages dated at ca.…”

Section: Early Pleistocenementioning

confidence: 99%

Paleovegetation reconstruction of fossil forests dominated by Metasequoia and Glyptostrobus from the late Pliocene Kobiwako Group, central Japan

Cited by 19 publications

References 2 publications

A Paleoecological Perspective on Wetland Restoration

A Paleoecological Perspective on Wetland Restoration

Oligocene–Neogene fossil history of Asian endemic conifer genera in Japan and Korea

Stages of major floral change in Japan based on macrofossil evidence and their connection to climate and geomorphological changes since the Pliocene

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