Animal genetic resources for food and agriculture crop and livestock species in the early neolithic time period changed our human evolution and lifestyles. This ability to control food production led to major demographic, technological, political and military changes. Consecutively, thousands of years of natural and human selection, genetic drift, inbreeding, and crossbreeding have contributed to the diversification of animal genetic resources and increased the variety of environments and production systems that livestock keeping takes place. Relatively few species have been domesticated; out of the world's 148 non-carnivorous species weighing more than 45 kg, only 15 have been successfully domesticated. The proportion of domesticated birds used for food
An Annotated Checklist of the Birds of the Oriental Region a discussion of the rationale behind the choice of English names, the systematic list (195 pages), a 17-page references list containing 814 items, and indexes of both English and scientific names. There is also a map of the region covered (supplementing the textual description within the introduction), and a list of eight excluded species. Works which used this work for their taxonomic basis include: Reviews of the checklist can be found in the following: An Annotated Checklist of the Birds of the Oriental Region An Annotated Checklist of the Birds of the Oriental Region is a 1996 softback book published