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003			MX-MdCICY
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040			_cCICY
090			_aB-15854
245	1	0	_aRamón and Maya Ruins : an ecological, not an economic, relation
490	0		_vScience, 216(4543), p.298-299, 1982
520	3		_aEconomically important trees such as ramón have been shown to have a high density in the civic-ceremonial core zone of ancient Maya ruins. The distribution of such trees is probably the result of their requirements for growth and reproduction, which are optimal on the ruins, and not because they are the descendants of trees planted by the Maya aristocracy.
650	1	4	_aRAMÓN
650	1	4	_aMAYA RUINS
650	1	4	_aECOLOGY
700	1	2	_aLambert, J.D.H.
700	1	2	_aAmason, J.T.
856	4	0	_uhttps://drive.google.com/file/d/1rg3DGZOfFfO42vunfVEOwkkQ2y_AFjTP/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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