By Edward O Price
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Additional resources for Animal domestication and behavior
Thus, it seems most plausible that the wolf-like ancestors of the dog initially domesticated themselves and that humans became their domesticators only later in the process. While the process described above is the most likely explanation for the domestication of the wolf, it is not a likely scenario for the establishment of most of our domestic animal stocks. g. pelage coloration). The advent of stable agrarian societies and the ability to provide food for captive herbivores set the stage for these important domestications.
The authors could not identify the environmental conditions responsible for the higher inbreeding depression in free-living animals. They hypothesized that relatively harsh living conditions in the wild can reduce the survival of unfit animals, whereas in captivity, management techniques and health care are available to promote and prolong their survival. e. controlled inbreeding). Templeton and Read (1984) used this hypothesis to explain the increased viability noted in a relatively small captive population of Speke’s gazelle (Gazella spekei) during its first few generations in captivity.
1986) proposed that unconscious selection for tameness is inevitable in captive populations of animals. Marliave et al. (1993) reported that ten generations of laboratory rearing of the coonstripe shrimp (Pandalus danae) resulted in inadvertent selection for reduced intensity of escape responses. Regular handling of the shrimp in a study of protandric hermaphroditism would often injure individuals with intense tail-flip escape responses. 5% of the level in wild stock. Hybrids between wild and ‘domestic’ shrimp were intermediate for both variables.