0187-5779 0187-5779 S0187-57792018000400393 10.28940/terra.v36i4.417 México Mexico 00 12 2018 00 12 2018 36 4 393 409

2012 123 400-17 2004 162 295-309 2000 51 1769‑1780 1974 55 856-63 2006 25 345-55 2010 1 349-61 1980 61 1065-74 1999 96 9701-4 1990 22 22-35 1993 2018 210 508-18 2014 32 251-79 2018 36 169-81 2009 9 818‑823 2009 8 23-42 1975 7 270-7 2014 58 591-601 2014 13-18 July 2014 Quebec City, Quebec, Canada 1017-20 2006 120 109-26 1992 44 265-70 1993 45 11‑19 1989 77 1059-79 2008 112 3833-45 2007 201 144-56 1996 55 65‑79 1991 119 561-601 1996 35 45-64 1984 16 193-201 1995 33 457-65 2009 61 41-52. 2005 249-302 2012 34 139-54 2013 105 1740-7 2011 45 121‑134 2018 256-257 207‑219 2018 172 384-91 1994 5 703-14 2003 365-81 2009 19 1417-28 2009 43 291-307 1974 1999 42 124-33 2004 25 3303-30 1997 48 25-43 2016 60 1347-56 1993 24 353-77 2016 3 160108 2009 15 2335-59 2013 14 86-98 2004 109 d20105 2011 115 382-91 2006 2017 190 318-30 2003 24 59-70