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Geoarchaeological evidence from Angkor, Cambodia, reveals a gradual decline rather than a catastrophic 15th-century collapse

Dan Penny, Tegan Hall, Damian Evans, Martin Polkinghorne
2019 Proceedings of the National Academy of Sciences of the United States of America  
, and soil erosion all decline as early as the first decades of the 14th century CE, and that the moat of Angkor Thom was no longer being maintained by the end of the 14th century.  ...  These data indicate a protracted decline in occupation within the economic and administrative core of the city, rather than an abrupt demographic collapse, suggesting the focus of power began to shift  ...  We acknowledge the support and collaboration of the Authority for the Protection and Management of Angkor and the Region of Siem Reap (APSARA National Authority), Cambodia.  ... 
doi:10.1073/pnas.1821460116 pmid:30804175 pmcid:PMC6421400 fatcat:z5af62xnhbf2dcfhs2hzqwon6a

Detecting the initial impact of humans and introduced species on island environments in Remote Oceania using palaeoecology

Matiu Prebble, Janet M. Wilmshurst
2008 Biological Invasions  
Palaeoecological data from most islands reveal catastrophic transformations, with losses of many species through over-hunting, deforestation and the introduction of novel mammalian predators, the most  ...  The isolated archipelagos of Remote Oceania provide useful microcosms for understanding the impacts of initial human colonization.  ...  Detecting the initial impact of humans  ... 
doi:10.1007/s10530-008-9405-0 fatcat:bqw5rseiandz5obb6yecqmxv6m

Ninety years of change on a low wooded island, Great Barrier Reef

S. M. Hamylton, R. McLean, M. Lowe, F. A. F. Adnan
2019 Royal Society Open Science  
The variable nature of ramparts and the presence of a trough that prevents the continuous spread of mangroves across a uniformly flat colonization surface precludes the interpretation of landform changes  ...  Moreover, longer-term implications of environmental change for these landforms can only be evaluated once the specific nature of the local carbonate budget, including the relative contribution of corals  ...  Low Isles caretakers Wayne and Jenni Fox are thanked for practical assistance in the field.  ... 
doi:10.1098/rsos.181314 pmid:31312467 pmcid:PMC6599766 fatcat:nc6p2jmoknbnhepnuptjmgtk54

Oligocene to Holocene sediment drifts and bottom currents on the slope of Gabon continental margin (west Africa)

Michel Séranne, César-Rostand Nzé Abeigne
1999 Sedimentary Geology  
The presence of upslope migrating sediment waves, and the northwest migration of the sediment drifts indicate deposition by bottom current flowing upslope, under the influence of the Coriolis force.  ...  These structures, previously interpreted as turbidity current channels, display the distinctive seismic image and internal organisation of sediment drifts, constructed by the activity of bottom currents  ...  Western Geophysical and GECO provided the seismic data for this study and are warmly thanked.  ... 
doi:10.1016/s0037-0738(99)00069-x fatcat:5gjlfjvcnrekbogwxg2of7tmua

A 3.5 ka record of paleoenvironments and human occupation at Angkor Borei, Mekong Delta, southern Cambodia

Paul Bishop, Dan Penny, Miriam Stark, Marian Scott
2003 Geoarchaeology  
These changes are synchronous with an abrupt decline in the concentration of microscopic charcoal particles in the sediments, and the colonization of the core locality by swamp forest plants.  ...  Microfossil and sedimentological data from a 3.1 m core extracted from a reservoir (baray) at the ancient Cambodian settlement of Angkor Borei in the Mekong Delta have provided a continuous record of sedimentation  ...  We also thank Weipers School of Veterinary Science, University of Glasgow for the core X-rays, and the British Geological Survey, Edinburgh, for use of the magnetometer.  ... 
doi:10.1002/gea.10067 fatcat:hz45p7bazndojo3325pa3nd7nu

The Intertidal Ecology of the British Solomon Islands: I. The Zonation Patterns of the Weather Coasts

J. E. Morton
1973 Philosophical Transactions of the Royal Society of London. Biological Sciences  
It is attached to the land mass by a spit or cay of coarse sand and coral rubble, supporting a mangrove swamp behind. At Gizo, the shoreline inside the moat consists of black basalt.  ...  Elevation of zonal levels is effectively limited by the height of the surf bench.  ...  of the ecological collections.  ... 
doi:10.1098/rstb.1973.0034 fatcat:fonv2kjbjveq5dvuoi4loiik2i

Successional dynamics of a 35 year old freshwater mitigation wetland in southeastern New Hampshire

J. Grant McKown, Gregg E. Moore, Andrew R. Payne, Natalie A. White, Jennifer L. Gibson, David G. Jenkins
2021 PLoS ONE  
Although the mitigation project has not created the full area of lost scrub-shrub swamp after 35 years, it has developed a structurally complex habitat and diverse avian community that effectively provides  ...  swamps, red maple swamps, and sedge meadows.  ...  Acknowledgments The authors thank Cornerstone Tree Care for providing access the site. Field assistance was provided by graduate student Chloe Brownlie (UNH) for vegetation monitoring.  ... 
doi:10.1371/journal.pone.0251748 pmid:33999932 fatcat:5phfm6dsobeufmclahhfdoeoxa

Sea Level Change in the Holocene on the Northern Great Barrier Reef

R. F. McLean, D. R. Stoddart, D. Hopley, H. Polach
1978 Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences  
During the Royal Society -Universities of Queensland Expedition to the northern Great Barrier Reef in 1973 we became particularly conscious of both the utility of reef data and problems associated with  ...  O ur intention is to present the evidence for a recent sea level history by utilizing data solely obtained from the Expedition without recourse to earlier commentaries on this or adjacent areas of the  ...  They conclude that mean low water springs (0.5 m) represents an effective upper limit to coral growth in freedraining reef flat locations, while for living moated microatolls the approximate upper limit  ... 
doi:10.1098/rsta.1978.0097 fatcat:fqw3vd6qwzajdcc3l3kmaq4v3a

Ground penetrating radar imaging of cap rock, caliche and carbonate strata

S.E Kruse, J.C Schneider, D.J Campagna, J.A Inman, T.D Hickey
2000 Journal of Applied Geophysics  
GPR mapping through south Florida prairie, cypress swamp and hardwood hammock resolves variations in thickness and structure of cap rock to ; 3 m and holds the potential to test theories for cap rock-vegetation  ...  Field experiments show ground penetrating radar GPR can be used to image shallow carbonate stratigraphy effectively in a variety of settings.  ...  Mesa, and Gene Shinn for proposing the work on Grossman's Ridge.  ... 
doi:10.1016/s0926-9851(99)00062-2 fatcat:uyhk2oncbrbghlx2jftko2qdoa

Structure and Energetics of Three Minnesota Forests

W. A. Reiners
1972 Ecological Monographs  
Ecological Society of America is collaborating with JSTOR to digitize, preserve and extend access to Ecological Monographs.  ...  JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive.  ...  Curtis makes no mention of the occurrence of marginal forests of this type although he does mention a "moat" between conifer swamps and the upland (1959:233).  ... 
doi:10.2307/1942231 fatcat:xd6iontatbbelgnhopozhbozka

Fluviatile swamps of New England

N. S. Shaler
1887 American Journal of Science  
of the swamp lands.  ...  I have at present no data sufficient to determine the depth to which the valleys have been encumbered by the swamp accumulations which have been formed in them or how much their beds have been raised from  ... 
doi:10.2475/ajs.s3-33.195.210 fatcat:xracwvc7d5ea5kyw2ny6746qbe

TRADE DURING PRE-SRIWIJAYA (4th–5th Centuries AD)

Triwurjani Triwurjani
2011 Berkala Arkeologi  
This paper is made in an attempt to re-emphasize the existence of the site of Karang Agung, which is based on its natural landscape that was a tidal swamp with very limited sources of fresh water.  ...  There are a number of variables that show the importance of this site, they are: its location which was near water (Musi tributary, moats); the existence of boat stake and various artifacts that were assumed  ...  There are two types of swamp: tidal swamp, which is located at or near the beach, in an estuary or near an estuary that was influenced by tidal waves of the sea; and non-tidal swamp or inland swamp, which  ... 
doi:10.30883/jba.v31i1.418 fatcat:ic2qq77r2zd57a3zy4buofqsma

A Study of Phayao's Historical Trading Communities to Encourage Recognizing Local History and to Promote Cultural Tourism

Phakthima Wangyao
2018 Nakhara : Journal of Environmental Design and Planning  
Based on the study of data, there are three existing commercial communities known as the following: the Sop-Tam commercial community of Tai Yai and Burmese which is currently closed, the Nong Ra-bu community  ...  The methods used for research were collecting historical and physical data as well as conducting surveys.  ...  at Mueang Phayao Market, and the area of Nong Ra-bu that was a huge swamp, but currently is a multipurpose yard.  ... 
doi:10.54028/nj2018153148 fatcat:jra27yfusvg2laqomfzgoub27i

Marine Sandstone Rolls"in a Coal Mine in Northern Wasatch Plateau, Utah: ABSTRACT"

Mark Bunnell, Chris Kravits, Joseph
1984 American Association of Petroleum Geologists Bulletin  
The sinters are red, have a pumicelike texture, and include diatoms that show effects of dissolution.  ...  The Anderson deposit formed in moat sediments within theMcLendon caldera.  ... 
doi:10.1306/ad461499-16f7-11d7-8645000102c1865d fatcat:mhg4csske5gxjcbphxzmoqvb3e

The Wetlands of Lakes Pontchartrain and Maurepas: Past, Present and Future

P.A. Keddy, D. Campbell, T. McFalls, G.P. Shaffer, R. Moreau, C. Dranguet, R. Heleniak
2007 Environmental Reviews  
Humans also removed most of the cypress swamps in a pulse of logging between 1876 and 1956.  ...  The state closest to historical conditions would be large areas of bald cypress swamp.  ...  We also thank the many students and volunteers who, over the years, have contributed to the research we cite, many of whom will go unrecognized.  ... 
doi:10.1139/a06-008 fatcat:rwraypuxsjcddpowwojhhudc6q
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