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- Q4974295 subject Q6999057.
- Q4974295 subject Q9183949.
- Q4974295 abstract "Brood X (Brood 10), the Great Eastern Brood, is one of 15 broods of periodical cicadas that appear regularly throughout the eastern United States. It has the greatest range and concentration of any of the 17-year cicadas.Every 17 years, Brood X cicadas tunnel en masse to the surface of the ground, lay eggs, and then die off in several weeks. The combination of long dormancy, simultaneous emergence of vast numbers, and short period before the nymphs' burrowing underground to safety, allows the brood to survive even massive predation.Pehr Kalm, a Swedish naturalist visiting Pennsylvania and New Jersey in 1749 on behalf of his nation's government, observed in late May an emergence of Brood X. When reporting the event in a paper that a Swedish academic journal published in 1756, Kalm wrote: The general opinion is that these insects appear in these fantastic numbers in every seventeenth year. Meanwhile, except for an occasional one which may appear in the summer, they remain underground.There is considerable evidence that these insects appear every seventeenth year in Pennsylvania.Kalm then described documents (including one that he had obtained from Benjamin Franklin) that had recorded in Pennsylvania the emergence from the ground of large numbers of cicadas during May 1715 and May 1732. He noted that the people who had prepared these documents had made no such reports in other years. Kalm further noted that others had informed him that they had seen cicadas only occasionally before the insects appeared in large swarms during 1749. He additionally stated that he had not heard any cicadas in Pennsylvania and New Jersey in 1750 in the same months and areas in which he had heard many in 1749. The 1715 and 1732 reports, when coupled with his own 1749 and 1750 observations, supported the previous "general opinion" that he had cited.Kalm summarized his observations and conclusions in a paper translated into English in 1771, in which he cited his 1756 Swedish publication and stated:There are a kind of locusts which about every seventeen years come hither in incredible numbers .... In the interval between the years when they are numerous, they are only seen or heard single in the woods.In April 1800, Benjamin Banneker, who lived near Ellicott's Mills, Maryland, documented three Brood X emergences when writing in his record book that he recalled a "great locust year" in 1749, a second in 1766 during which the insects appeared to be "full as numerous as the first" and a third in 1783. He predicted that the insects "may be expected again in the year 1800, which is seventeen years since their third appearance to me".Brood X's most recent appearance was in the spring and early summer of 2004 throughout an area roughly enclosed by Illinois, Michigan, New York and Georgia. The next appearances will be in 2021 and 2038.Bob Dylan's song "Day of the Locusts" (on his 1970 album New Morning) refers to the Brood X cicadas that were present in Princeton, New Jersey in June 1970 when Dylan received an honorary degree from Princeton University.".
- Q4974295 thumbnail 17-year_cicada.jpg?width=300.
- Q4974295 wikiPageExternalLink g900a.htm.
- Q4974295 wikiPageExternalLink broodX.php.
- Q4974295 wikiPageExternalLink g900m17y.htm.
- Q4974295 wikiPageExternalLink cicadas.html.
- Q4974295 wikiPageExternalLink watch?v=tfy2wi3u-VY&hd=1.
- Q4974295 wikiPageWikiLink Q1166.
- Q4974295 wikiPageWikiLink Q1189650.
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- Q4974295 wikiPageWikiLink Q162267.
- Q4974295 wikiPageWikiLink Q170430.
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- Q4974295 wikiPageWikiLink Q21578.
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- Q4974295 wikiPageWikiLink Q34.
- Q4974295 wikiPageWikiLink Q34969.
- Q4974295 wikiPageWikiLink Q392.
- Q4974295 wikiPageWikiLink Q49664.
- Q4974295 wikiPageWikiLink Q557600.
- Q4974295 wikiPageWikiLink Q6999057.
- Q4974295 wikiPageWikiLink Q719204.
- Q4974295 wikiPageWikiLink Q730938.
- Q4974295 wikiPageWikiLink Q9183949.
- Q4974295 comment "Brood X (Brood 10), the Great Eastern Brood, is one of 15 broods of periodical cicadas that appear regularly throughout the eastern United States. It has the greatest range and concentration of any of the 17-year cicadas.Every 17 years, Brood X cicadas tunnel en masse to the surface of the ground, lay eggs, and then die off in several weeks.".
- Q4974295 label "Brood X".
- Q4974295 depiction 17-year_cicada.jpg.