conferring a faculty, privilege, permission, or the power of doing or not doing something: a facultative enactment. ... left to one's option or choice; optional: The last questions in the examination were facultative.
dictionary.reference.com/browse/facultative dictionary.reference.com/browse/facultative
Gaulin & McBurney, 2001) is that traits are not considered to be endlessly malleable. Some traits are fixed through a wide range of environmental conditions (obligate traits; e.g. having two eyes), while others are highly sensitive to environmental change (facultative traits;
bjp.rcpsych.org/cgi/content/full/178/2/178-b
A presentation on I. Traditional And Evolutionary Psycholo in Science & Technology on authorSTREAM ... Obligate and facultative traits :Obligate and facultative traits If the ability to adjust to environmental changes is so useful and fitness-enhancing, why are not all traits facultative?
www.authorstream.com/Presentation/aSGuest6205-121281-tr... www.authorstream.com/Presentation/aSGuest6205-121281-traditional-evolutionary-psycholo-psychology-science-technology-ppt-powerpoint/
Since evolutionary psychology conceptualizes morality as a set of facultative traits, differences across individuals would be explained as primarily a result of differences in the environmental circumstances encountered, possibly in a cumulative fashion.
www.ac.wwu.edu/~culture/Sunar.htm
Sep 3, 2009 ... The ability of facultative endosymbionts to introduce novel heritable traits into their hosts (e.g., parasitoid immunity) is expected to ...
arjournals.annualreviews.org/doi/pdf/10.1146/annurev-en... arjournals.annualreviews.org/doi/pdf/10.1146/annurev-ento-112408-085305
Facultative Symbionts of Aphids and the Horizontal Transfer of Ecologically Important Traits. ... Facultative Symbionts of Aphids and the Horizontal Transfer of Ecologically Important Trai...Facultative Symbionts of Aphids and the Horizontal Transfer of Ecologically Important Traits.
www.ncbi.nlm.nih.gov/pubmed/19728837
Sexual Jealousy as a Facultative Trait 357 order to motivate these implicit concerns with the behavior of one's mate (Sy- mons 1979). ...
web.missouri.edu/~gearyd/EthologySociobiology.pdf
Permanent exposure versus facultative concealment of sexual traits: an experimental study in the house sparrow. Received: 29 September 1995/Accepted after ...
www.jstor.org/stable/4601274
Predators and parasitoids of herbivores can play important roles in plant defense. ... In facultative interactions, selection via herbivores' enemies also may shape plant traits, although no study has yet demonstrated all of the necessary criteria to document selection in a single tri-trophic system.
www.esajournals.org/doi/abs/10.1890/02-0625
First through Fifth Week Notes From Lectures and Readings ... Terms and Concepts with which to be familiar ... obligate and facultative traits...
www.unl.edu/rhames/courses/for97notes.htm