The backyard of Tlaxcala. An approach to its composition

The backyard is an agroecosystem located near the home and fulf ills several functions provides various services; in addition, one third of Rural Production Units Tlaxcala have this agroecosystem. In mexican state Tlaxcala, México, primary sector that contributes least to gross domestic product; it divided into 60 municipalities 66% its territory used for agricultural, livestock forestry activities little known about objective research was make approximation composition with respect plant animal species found backyard. Registry Agricultural Producers State Mexico, carried out by National Institute Statistics Geography (INEGI) used; as a member work team, copy original database obtained informally, which consisted total 53 968 basic information cards; total, 17 236 reported activities. analyzed using frequency tables data grouped sorted classes both species. Regarding main vegetable produced backyard, fruit trees such peaches corn stand out. Of produced, cattle poultry are most produced. On average, 91.15% what self-consumption; average area 215 m2. determined terms certain economic importance; results here can be useful other continues characterization structure, functioning Tlaxcala.