Cicada
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| Cicada | |
|---|---|
 | |
| Name | Cicada |
| Regnum | Animalia |
| Phylum | Arthropoda |
| Classis | Insecta |
| Ordo | Hemiptera |
| Subordo | Auchenorrhyncha |
| Familia | Cicadidae |
Cicada
Cicadas are hemipteran insects known for their loud acoustic displays and distinctive life histories. Native to many regions, they are prominent in ecosystems and cultures, appearing in literature, art, music, and natural history. Famous entomologists, museums, universities, and naturalist societies have studied cicadas across continents, documenting their taxonomy, behavior, and interactions with humans.
Taxonomy and Evolution
Cicadas belong to the family Cicadidae within the order Hemiptera, and their classification has been refined by work from researchers at institutions such as the Smithsonian Institution, the Natural History Museum, London, and universities including Harvard University and the University of California, Berkeley. Molecular phylogenetics using methods developed at laboratories like the Max Planck Institute and collaborations among researchers affiliated with the Royal Society and the National Science Foundation have clarified relationships among genera such as Magicicada, Tibicen, Cicadetta, Chremistica, and Meimuna. Fossil records from formations studied by paleontologists at institutions like the American Museum of Natural History and the Natural History Museum, Vienna show ancient cicadomorph lineages contemporaneous with early Cretaceous and Paleogene faunas. Biogeographic patterns described in literature published by the Linnean Society of London and researchers at the Smithsonian Tropical Research Institute illustrate diversification associated with continental drift and climatic shifts recorded by the Intergovernmental Panel on Climate Change.
Description and Biology
Adult cicadas are characterized by membranous wings, large compound eyes, and specialized tymbal organs used for sound production; morphological descriptions are held in collections at institutions such as the British Museum and described in monographs from the Entomological Society of America. Anatomy studies by researchers affiliated with the Royal Society of London and universities including Columbia University and the University of Cambridge detail the exoskeleton, wing venation, and muscular mechanisms of the tymbal. Physiological investigations conducted at research centers like the Salk Institute and the Max Planck Institute for Chemical Ecology examine tracheal respiration, circulatory hemolymph, and endosymbionts discovered in studies published with support from the National Institutes of Health and the Howard Hughes Medical Institute. Acoustic properties and signal processing have been analyzed by laboratories associated with the MIT Media Lab and the University of Oxford.
Life Cycle and Development
Cicada life cycles range from annual to periodical strategies, with famous examples studied at Princeton University and the University of Virginia illustrating 13- and 17-year periodicity in species of the genus Magicicada. Developmental biology research involving collaborators at the Max Planck Institute for Developmental Biology and the European Molecular Biology Laboratory has explored nymphal instars, moulting processes, and hormonal regulation involving neuroendocrine factors characterized by teams at the University of Tokyo and the University of Queensland. Paleoentomological context provided by researchers at the Smithsonian Institution and the American Museum of Natural History connects life history strategies to historical climate events documented by the National Aeronautics and Space Administration.
Behavior and Ecology
Acoustic signaling, mate attraction, and chorusing behaviors have been subjects of field studies by teams from the University of Michigan, the Australian National University, and the Chinese Academy of Sciences; experimental work by researchers at the Max Planck Institute for Ornithology and the University of California, Davis addresses predator avoidance and thermoregulatory behaviors. Predation, parasitism, and trophic interactions involve predators studied by ecologists at the Smithsonian Tropical Research Institute, including songbird species documented by ornithologists at the Cornell Lab of Ornithology and mammals recorded by researchers affiliated with the Johns Hopkins University. Ecosystem impacts such as nutrient cycling and soil disturbance have been quantified in studies funded by agencies like the National Science Foundation and reported in journals associated with the Royal Society Publishing.
Distribution and Habitat
Cicadas occur on every continent except Antarctica, with regional faunas cataloged by museums such as the Australian Museum, the National Museum of Natural History (France), and the Royal Ontario Museum. Biogeographic surveys conducted by researchers at the University of Cape Town and the National University of Singapore document species richness in temperate woodlands, tropical forests, and savannahs, with habitats described in field guides published by the Field Museum and regional natural history societies. Climate change projections by the Intergovernmental Panel on Climate Change and distribution modeling studies from the Center for International Forestry Research examine range shifts and altitudinal movements.
Interactions with Humans
Cicadas feature in cultural works archived by the British Library, the Library of Congress, and museums worldwide, appearing in classical poetry studied in departments at Oxford University and Yale University and in folk art preserved by organizations such as UNESCO. Economic and agricultural studies from the United States Department of Agriculture and the Food and Agriculture Organization evaluate cicada impacts on orchards and plantation crops, while culinary and entomophagy traditions documented by researchers at the University of Gastronomic Sciences and the Smithsonian Folklife Festival describe human consumption. Acoustic recordings curated by the BBC and public outreach by institutions like the National Geographic Society have popularized cicada song.
Conservation and Threats
Conservation assessments coordinated by the International Union for Conservation of Nature and research from universities including the University of British Columbia and the University of Melbourne address habitat loss, pesticide exposure, and climate-driven phenological shifts. Protected area management guided by agencies such as the United States National Park Service and the European Environment Agency incorporates invertebrate monitoring protocols developed by the Natural History Museum, London and the Royal Botanic Gardens, Kew. Citizen science projects organized by platforms like the iNaturalist community and initiatives from the Xerces Society contribute distribution data and support conservation planning.