EVOLUTION IN PERIODICAL CICADAS
نویسندگان
چکیده
منابع مشابه
Evolution of periodicity in periodical cicadas
Periodical cicadas (Magicicada spp.) in the USA are famous for their unique prime-numbered life cycles of 13 and 17 years and their nearly perfectly synchronized mass emergences. Because almost all known species of cicada are non-periodical, periodicity is assumed to be a derived state. A leading hypothesis for the evolution of periodicity in Magicicada implicates the decline in average tempera...
متن کاملLife Cycle in Periodical Cicadas
-Several lines of evidence suggest that the 13-year life cycle is genetically dominant over the 17-year life cycle in periodical cicadas. They are: (1) 13-year dominance best predicts the decline of 17 -year Brood X, and concomitant increase in Brood XIX in the midwest, following a hypothesized 1868 hybridization with 13-year Brood XIX through assimilation of heterozygotes into Brood XIX; (2) t...
متن کاملThe Ecology, Behavior, and Evolution of Periodical Cicadas
Periodical cicada nymphs feed underground on root xylem fluids for precisely 13 or 17 years before emerging at any given locality synchronously and in tremendous numbers. Populations throughout the eastern United States are grouped into variously sized, geographically contiguous broods, which are reproductively isolated from each other. Six distinct species represent the 13and 17-year life cycl...
متن کاملPeriodical cicadas: a minimal automaton model
The Magicicada spp. life cycles with its prime periods and highly synchronized emergence have defied reasonable scientific explanation since its discovery. During the last decade several models and explanations for this phenomenon appeared in the literature along with a great deal of discussion. Despite this considerable effort, there is no final conclusion about this long standing biological p...
متن کاملPeriodical cicadas as resource pulses in North American forests.
Resource pulses are occasional events of ephemeral resource superabundance that occur in many ecosystems. Aboveground consumers in diverse communities often respond strongly to resource pulses, but few studies have investigated the belowground consequences of resource pulses in natural ecosystems. This study shows that resource pulses of 17-year periodical cicadas (Magicicada spp.) directly inc...
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ژورنال
عنوان ژورنال: Evolution
سال: 1963
ISSN: 0014-3820
DOI: 10.1111/j.1558-5646.1963.tb03277.x