Middle to Late Holocene landscape changes and geoarchaeological implications in the marshes of the Dives estuary (NW France)

AbstractOur study is located in northern Beni and aims to improve knowledge on regional landscape changes from the last 8600 years, based on pollen and charcoal analyses from a lacustrine sediment core from Lake Ginebra. Our results showed that gallery forest and lacustrine sediment were observed from 8645 until 3360 cal yr BP. After a change from a lacustrine to a swamp environment at 1700 cal yr BP, the Cerrados and the Mauritia swamp became installed 1000 years ago on our study site. The environmental changes we observed over the last 8600 years in the Ginebra record reinforce the evidence of a west–east climatic gradient with the persistence of rain forest throughout the Holocene on the western side and the presence of the Cerrados until the late Holocene on the eastern side. Moreover, the persistence of a wet forest in the early to mid-Holocene in southwestern Amazonia highlighted some local responses to the global trend that could be related to the distance from the Andes; while in the late Holocene, both an increase in insolation and strengthening of the South American summer monsoon system enabled the installation of a seasonal flooded savanna in northern Beni and of the rain forest in eastern Beni.

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Silting up Oiniadai’s harbours (Acheloos River delta, NW Greece). Geoarchaeological implications of late Holocene landscape changes

Géomorphologie relief processus environnement ◽

10.4000/geomorphologie.645 ◽

2007 ◽

Vol 13 (1) ◽

Cited By ~ 4

Author(s):

Andreas Vött

Keyword(s):

Late Holocene ◽

River Delta ◽

Landscape Changes ◽

Acheloos River

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Late Holocene coastline and landscape changes to the west of Ephesus, Turkey

Quaternary International ◽

10.1016/j.quaint.2017.09.024 ◽

2019 ◽

Vol 501 ◽

pp. 349-363 ◽

Cited By ~ 4

Author(s):

Friederike Stock ◽

Stefan Halder ◽

Stephan Opitz ◽

Anna Pint ◽

Sirri Seren ◽

...

Keyword(s):

Late Holocene ◽

Landscape Changes ◽

The West

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Paleontology and paleoecology of guano deposits in Mammoth Cave, Kentucky, USA

Quaternary Research ◽

10.1016/j.yqres.2015.01.008 ◽

2015 ◽

Vol 83 (3) ◽

pp. 427-436 ◽

Cited By ~ 8

Author(s):

Chris Widga ◽

Mona Colburn

Keyword(s):

Stable Isotope ◽

Late Holocene ◽

Open Space ◽

Interglacial Period ◽

Landscape Changes ◽

Tadarida Brasiliensis ◽

Stable Isotope Analyses ◽

Cave System ◽

Closed Forest ◽

Isotope Analyses

Bat guano deposits are common in the Mammoth Cave system (Kentucky, USA). Paleontological remains associated with these deposits are important records of local landscape changes. Recent excavations in the cave suggest that vertebrate remains in most of these deposits are dominated by Chiroptera. Although no extinct fauna were identified, the presence of a large roost of Tadarida brasiliensis in the Chief City section is beyond the northern extent of its current range suggesting that this deposit dates to an undetermined interglacial period. Stable isotope analyses of Tadarida-associated guano indicate a C3 prey signature characteristic of forested habitat. This was unexpected since this species is typically associated with open environments. Further ecomorphological analysis of wing shape trends in interglacial, Holocene, and historic-aged assemblages indicate that interglacial faunas are dominated by fast-flying, open-space taxa (T. brasiliensis) while late Holocene and Historic assemblages contain more taxa that utilized closed forest or forest gaps.

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