Sentence examples for a behavioral trait from inspiring English sources
Some are noted for a behavioral trait in which two individuals approach and "kiss". The purpose of this, whether sexual or aggressive, is not known.
Evidence of genetic basis, which has been furnished by selective breeding and by functional correlation implying natural selection, is silent about how a behavioral trait is realized in individual ontogeny (the development of an organism from conception to adulthood).
One way to measure the heritability of a behavioral trait is to determine the average values of the behaviour for the parents and offspring in a sample of families within a population and calculate the linear relationship between offspring values and parental values.
The idea that a behavioral trait can influence a species' evolution is "very intuitive," says evolutionary physiologist Raymond Huey of the University of Washington in Seattle.
"This is the first time anyone's used a single gene to implant something as complex as a behavioral trait into another species," says Young. "It's a brilliant piece of work," says Dean Hamer, a behavioral geneticist at the National Cancer Institute.
Impulsivity is a behavioral trait that varies across the general population.
Although these data could be interpreted as evidence against a "behavioral traits hypothesis of voluntary activity", they did, however, find that selected mice displayed fewer turns in their travel paths, which could be indicative of increased motivated behavior in these animals.
J.F. Crow and K. Aoki, "Group selection for a polygenic behavioral trait: a differential proliferation model," PNAS 79 (1982): 2628-31.
A neurodevelopmental disorder can be conceptualized as an extreme impairment along a dimension of an underlying behavioral trait.
79, 81 These results suggest that selection on a single behavioral trait can lead to a range of morphological changes.
In other words, the researcher tries to identify the ecological challenges, or "selection pressures," faced by a species and then investigates how a particular behavioral trait helps individuals surmount these obstacles so that they can survive and reproduce.
