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subspecies n. Quick reference
A Dictionary of Psychology (4 ed.)
... n . In biology, a taxonomic group into which a species is divided, containing organisms that are genetically differentiable from other members of the same species by the relative frequencies of their polymorphic genes . Also called a microspecies, race , or variety...
microevolution n. Quick reference
A Dictionary of Psychology (4 ed.)
... n. A relatively rapid change in a species or subspecies brought about by natural selection operating intensively on a characteristic or characteristics. Compare macroevolution . [From Greek mikros small + English evolution...
microspecies n. Quick reference
A Dictionary of Psychology (4 ed.)
... n. A taxonomic category below the level of a species , hence a race, subspecies, or variety. [From Greek mikros small + Latin species appearance or kind, from specere to...
variety n. Quick reference
A Dictionary of Psychology (4 ed.)
...of unlike things. In biology, a taxonomic group into which a species is divided, containing organisms that are genetically differentiable from other members of the same species by the relative frequencies of their polymorphic genes . Also called a microspecies, race , or subspecies . [From Latin varietas variety, from varius ...
taxonomy n. Quick reference
A Dictionary of Psychology (4 ed.)
...more loosely, any systematic classification. The conventional biological taxonomy includes the following, starting from the highest level: kingdom ( 2 ) , phylum , class ( 2 ) , order ( 3 ) , family ( 2 ) , genus , species , microspecies . A microspecies may be a subspecies , a race ( 2 ) , or a variety . See also taxon . taxonomic adj . [From Greek taxis order + -nomos ...
saltation n. Quick reference
A Dictionary of Psychology (4 ed.)
...is propagated along a myelinated nerve fibre in a sequence of jumps from one node of Ranvier to the next, greatly increasing its speed of propagation. Also called saltatory conduction . 2. A sudden variation in the structure or behaviour of an organism, species, or subspecies resulting from genetic mutation . 3. Another name for sensory saltation. [From Latin saltus a leap, from saltare to dance + - ation indicating a process or...
species n. Quick reference
A Dictionary of Psychology (4 ed.)
... n . A taxonomic group containing individuals capable of interbreeding and producing fertile offspring. A species is a subdivision of a genus , and it may contain one or more subspecies , varieties , or races ( 2 ) . By convention, following the system put forward by the Swedish botanist Carolus Linnaeus ( 1707–78 ) in his book Systema Naturae ( 1737 ), a species is always given a double name, comprising the generic name with an upper-case initial letter followed by the specific name with a lower-case initial letter, like an entry in a...
round dance n. Quick reference
A Dictionary of Psychology (4 ed.)
...from 1924 to 1955 , through which a female honey-bee communicates to other members of her hive the direction and distance of a source of nectar or sometimes a new nesting site less than a certain distance away—less than about 5–80 metres away, depending on the bee species or subspecies—the more elaborate and specific waggle dance being reserved for targets further away. In the round dance, the bee moves in circles on a (usually) vertical surface of the honeycomb, alternating clockwise and anticlockwise, the liveliness and length of her dance indicating how...
race n. Quick reference
A Dictionary of Psychology (4 ed.)
...populations; and 19, 17, and 64 in Oriental populations; and many other polymorphic genes show similar racial differences, but across all polymorphic genes, only about 6 per cent of genetic variance among humans is due to racial differences. Also called a microspecies , subspecies or variety . See also ethnic , racialism , racism . racial adj . [From Italian razza , origin...
waggle dance n. Quick reference
A Dictionary of Psychology (4 ed.)
...from 1924 onwards, through which a female honey-bee communicates to other members of her hive the direction and distance of a source of nectar or a new nesting site more than a certain distance away—more than about 5–80 metres away, depending on the bee species or subspecies. The bee describes a repeated figure of eight on the (usually) vertical surface of a honeycomb, moving in a straight line while waggling her abdomen swiftly (3–15 hertz) from side to side, looping back to perform another straight waggling run from the same point, then looping...
