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Monumental architecture at Aguada Fenix and the rise of Maya civilization 期刊论文
NATURE, 2020
作者:  Bedding, Timothy R.;  Murphy, Simon J.;  Hey, Daniel R.;  Huber, Daniel;  Li, Tanda;  Smalley, Barry;  Stello, Dennis;  White, Timothy R.;  Ball, Warrick H.;  Chaplin, William J.;  Colman, Isabel L.;  Fuller, Jim;  Gaidos, Eric;  Harbeck, Daniel R.;  Hermes, J. J.;  Holdsworth, Daniel L.;  Li, Gang;  Li, Yaguang;  Mann, Andrew W.;  Reese, Daniel R.;  Sekaran, Sanjay;  Yu, Jie;  Antoci, Victoria;  Bergmann, Christoph;  Brown, Timothy M.;  Howard, Andrew W.;  Ireland, Michael J.;  Isaacson, Howard;  Jenkins, Jon M.;  Kjeldsen, Hans;  McCully, Curtis;  Rabus, Markus;  Rains, Adam D.;  Ricker, George R.;  Tinney, Christopher G.;  Vanderspek, Roland K.
收藏  |  浏览/下载:30/0  |  提交时间:2020/07/03

Archaeologists have traditionally thought that the development of Maya civilization was gradual, assuming that small villages began to emerge during the Middle Preclassic period (1000-350 bc  dates are calibrated throughout) along with the use of ceramics and the adoption of sedentism(1). Recent finds of early ceremonial complexes are beginning to challenge this model. Here we describe an airborne lidar survey and excavations of the previously unknown site of Aguada Fenix (Tabasco, Mexico) with an artificial plateau, which measures 1,400 m in length and 10 to 15 m in height and has 9 causeways radiating out from it. We dated this construction to between 1000 and 800 bc using a Bayesian analysis of radiocarbon dates. To our knowledge, this is the oldest monumental construction ever found in the Maya area and the largest in the entire pre-Hispanic history of the region. Although the site exhibits some similarities to the earlier Olmec centre of San Lorenzo, the community of Aguada Fenix probably did not have marked social inequality comparable to that of San Lorenzo. Aguada Fenix and other ceremonial complexes of the same period suggest the importance of communal work in the initial development of Maya civilization.


Lidar survey of the Maya lowlands uncovers the monumental site of Aguada Fenix, which dates to around 1000-800 bc and points to the role of communal construction in the development of Maya civilization.


  
Effects of bark beetle attacks on forest snowpack and avalanche formation - Implications for protection forest management 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 438: 186-203
作者:  Teich, Michaela;  Giunta, Andrew D.;  Hagenmuller, Pascal;  Bebi, Peter;  Schneebeli, Martin;  Jenkins, Michael J.
收藏  |  浏览/下载:19/0  |  提交时间:2019/11/26
Snow stratigraphy  Avalanche formation  Protection forest  Bark beetle  Snow micro penetrometer  SMP  
Overstory species response to clearcut harvest across environmental gradients in hardwood forests 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2018, 428: 66-80
作者:  Swaim, J. Travis;  Dey, Daniel C.;  Saunders, Michael R.;  Weigel, Dale R.;  Thornton, Christopher D.;  Kabrick, John M.;  Jenkins, Michael A.
收藏  |  浏览/下载:8/0  |  提交时间:2019/04/09
Long-term data  Stand development  Even-aged  Species composition  Central Hardwood Region  Ordination analysis  Edaphic variables  Disturbance history  
Climate warming alters fuels across elevational gradients in Great Basin bristlecone pine-dominated sky island forests 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2017, 392
作者:  Gray, Curtis A.;  Jenkins, Michael J.
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/09
Great Basin bristlecone pine  Wildland fuels  Climate change  Treeline forests