0377-9424 0377-9424 S0377-94242017000200047 10.15517/rac.v41i2.31299 Costa Rica Costa Rica Costa Rica Costa Rica 00 12 2017 00 12 2017 41 2 47 66

2010 2 4 4 433-59 ASD 2010 2006 30 2 2 31-44 2012 30 2 2 189-97 2007 278 2012 404 2001 8 2 2 175-83 1968 5 17 17 77-88 1980 212 2015 71 2005 488 2013 95 2014 62 1 1 385-408 2014 6 1 1 179-94 2010 16 2 2 7-18 2000 208 2010 Santo Domingo, Ecuador 2008 9 2 2 12-8 2009 Bogotá, Colombia 2015 36 1 1 27-39 2013 8 2003 189 2013 73 2011 3 2012 9 1990 40 1 1 440-51 USDA (United States Department of Agriculture) 2001 88 1999 17 3 3 193-200