William H. Cade

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William Henry Cade (born July 5, 1946) is an American-Canadian biologist who served as the president and vice-chancellor of the University of Lethbridge from 2000 to 2010. [1] His research articles deal mainly with entomology, particularly with field crickets.

Contents

Education

Cade completed his BA (1968), MA (1972) and PhD (1976) in Zoology at the University of Texas at Austin. While an undergraduate at Texas, Cade became a member of the Tau chapter of the Kappa Sigma fraternity. [2]

Family

Cade's wife, Elsa Salazar Cade (born 1952, San Antonio, Texas), is a Mexican-American science teacher and entomologist. She was selected as one of the top ten science teachers in 1995 by the National Science Teachers Association. [3] For her efforts, she received an award from the University of Lethbridge in 2010 in recognition of her volunteer work. [4]

Research

William Cade has done research in evolution of animal behavior, insect reproductive behavior, acoustic signals in cricket, cockroach mating behavior, and parasite-prey coevolution.

Flies and crickets

With his wife, Cade has done more than 30 years of research on the Texas field cricket, Gryllus texensis . [5] He also had a long collaboration with Dan Otte collecting and studying the crickets and grasshoppers of Africa. [6] In 1975, together with his wife, he discovered the parasitic fly Ormia ochracea is attracted to the song of male crickets. Only female flies are attracted to the song, and they deposit living larvae on and in the vicinity of calling males. The larvae burrow into and eat the cricket who dies in about 7 days when the flies pupate. This was the first example of a natural enemy that locates its host or prey using the mating signal of the host/prey. [7] In 2006, research by Marlene Zuk revealed that pressure from the O. ochracea caused the crickets to evolve a silent male with wings that look like female wings, one of the fastest recorded examples of evolution. [8]

Selected publications

Related Research Articles

<span class="mw-page-title-main">Gryllinae</span> Subfamily of crickets

Gryllinae, or field crickets, are a subfamily of insects in the order Orthoptera and the family Gryllidae.

<i>Ormia ochracea</i> Species of fly

Ormia ochracea is a small yellow nocturnal fly in the family Tachinidae. It is notable for its parasitism of crickets and its exceptionally acute directional hearing. The female is attracted to the song of the male cricket and deposits larvae on or around him, as was discovered in 1975 by the zoologist William H. Cade.

<span class="mw-page-title-main">Northern cricket frog</span> Species of amphibian

The northern cricket frog is a species of small hylid frog native to the United States and northeastern Mexico. These frogs are majorly in grey, green, and brown color with blotching patterns. Many have a brown or orange stripe down the center of their back and a triangular marking on the top of their head. Despite being members of the tree frog family, they are not arboreal. These frogs prefer habitats near the edges of slow-moving bodies of water, and in close proximity to shelter items, like rocks. It has two recognized subspecies, A. c. crepitans and A. c. paludicola.

<i>Gryllus bimaculatus</i> Species of cricket

Gryllus bimaculatus is a species of cricket in the subfamily Gryllinae. Most commonly known as the two-spotted cricket, it has also been called the "African" or "Mediterranean field cricket", although its recorded distribution also includes much of Asia, including China and Indochina through to Borneo. It can be discriminated from other Gryllus species by the two dot-like marks on the base of its wings.

<i>Teleogryllus oceanicus</i> Species of cricket

Teleogryllus oceanicus, commonly known as the Australian, Pacific or oceanic field cricket, is a cricket found across Oceania and in coastal Australia from Carnarvon in Western Australia and Rockhampton in north-east Queensland

<span class="mw-page-title-main">Tree cricket</span> Subfamily of crickets

Tree crickets are insects of the order Orthoptera. These crickets are in the subfamily Oecanthinae of the family Gryllidae.

A mating call is the auditory signal used by animals to attract mates. It can occur in males or females, but literature is abundantly favored toward researching mating calls in females. In addition, mating calls are often the subject of mate choice, in which the preferences of one gender for a certain type of mating call can drive sexual selection in a species. This can result in sympatric speciation of some animals, where two species diverge from each other while living in the same environment.

<i>Gryllus pennsylvanicus</i> Species of cricket

Gryllus pennsylvanicus is known as the fall field cricket. G. pennsylvanicus is common in southern Ontario, is widespread across much of North America and can be found even into parts of northern Mexico. It tends to be absent in most of the southwestern United States including southern California. Within its geographic range this field cricket will burrow into soil in fields and forest edges. Individuals inhabit grassy disturbed areas and are often found around areas of human habitation.

<i>Gryllus veletis</i> Species of cricket

Gryllus veletis, commonly known as the spring field cricket, is abundant throughout eastern North America. G. veletis is a solitary, aggressive, omnivorous, burrow-inhabiting species of cricket. This species is commonly confused with Gryllus pennsylvanicus, as they inhabit the same geographical area. However, the two species are easily distinguished through examination of life history, ovipositor and behavioural differences. Predators of G. veletis include American toads, wild turkeys, red-tailed hawks, wolf spiders and red-backed salamanders.

<span class="mw-page-title-main">Cricket (insect)</span> Small insects of the family Gryllidae

Crickets are orthopteran insects which are related to bush crickets, and, more distantly, to grasshoppers. In older literature, such as Imms, "crickets" were placed at the family level, but contemporary authorities including Otte now place them in the superfamily Grylloidea. The word has been used in combination to describe more distantly related taxa in the suborder Ensifera, such as king crickets and mole crickets.

<i>Gryllus</i> Genus of crickets

Gryllus is a genus of field cricket. Members of the genus are typically 15–31 mm long and darkly coloured. The type species is Gryllus campestris L.: the European field cricket.

Platygryllus is a genus of crickets in the subfamily Gryllinae. Records of species distribution include Africa, southern Europe and in Asia: India, Java and the Philippines.

<i>Gryllus texensis</i> Species of cricket

Gryllus texensis is a species of cricket described by William H. Cade and Otte in (2000). Cade and Otte clarify that field crickets collected in the Southeastern United States from Florida to Texas identified as Gryllus integer, were in fact misidentified, and should have been classified as G. texensis. Morphologically, Cade and Otte found no differences between G. texensis and Gryllus rubens, however, their call song structure was significantly different.

<i>Gryllus rubens</i> Species of cricket

Gryllus rubens, commonly known as the southeastern field cricket, is one of many cricket species known as a field cricket. It occurs throughout most of the Southeastern United States. Its northern range spans from southern Delaware to the extreme southeastern corner of Kansas, with a southern range stretching from Florida to eastern Texas.

Female copulatory vocalizations, also called female copulation calls or coital vocalizations, are produced by female primates, including human females, and female non-primates. Copulatory vocalizations usually occur during copulation and are hence related to sexual activity. Vocalizations that occur before intercourse, for the purpose of attracting mates, are known as mating calls.

<span class="mw-page-title-main">Marlene Zuk</span> American evolutionary biologist

Marlene Zuk is an American evolutionary biologist and behavioral ecologist. She worked as professor of biology at the University of California, Riverside (UCR) until she transferred to the University of Minnesota in 2012. Her studies involve sexual selection and parasites.

An illegitimate receiver is an organism that intercepts another organism's signal, despite not being the signaler's intended target. In animal communication, a signal is any transfer of information from one organism to another, including visual, olfactory, and auditory signals. If the illegitimate receiver's interception of the signal is a means of finding prey, the interception is typically a fitness detriment to either the signaler or the organism meant to legitimately receive the signal, but it is a fitness advantage to the illegitimate receiver because it provides energy in the form of food. Illegitimate receivers can have important effects on the evolution of communication behaviors.

Gryllus integer, commonly known as the western trilling cricket, is one of many species of field cricket in the genus Gryllus. It is called the "triller" field cricket because its song is nearly continuous rather than broken into discrete chirps. G. integer can be found in parts of the Western United States, having been recorded from Oregon, California, Arizona and New Mexico.

The sensory trap hypothesis describes an evolutionary idea that revolves around mating behavior and female mate choice. It is a model of female preference and male sexual trait evolution through what is known as sensory exploitation. Sensory exploitation, or a sensory trap is an event that occurs in nature where male members of a species perform behaviors or display visual traits that resemble a non-sexual stimulus which females are responsive to. This tricks females into engaging with the males, thus creating more mating opportunities for males. What makes it a sensory trap is that these female responses evolved in a non-sexual context, and the male produced stimulus exploits the female response which would not otherwise occur without the mimicked stimulus.

<i>Acanthogryllus fortipes</i> Southern African cricket species

Acanthogryllus fortipes, or the brown cricket, is a species of cricket from southern Africa. It is mostly dark brown in colour and has a large head. It is a common species in short grass, including artificial habitats such as lawns and fields.

References

  1. Cade, William H. "Curriculum Vitae" (PDF). Retrieved 6 June 2024.
  2. Cactus Yearbook. Austin, TX: University of Texas. 1968. p. 490.
  3. "Buffalo teacher a finalist for science group award". The Buffalo News. 1995-02-17. p. 35. Retrieved 2023-12-28.
  4. "Bill & Elsa Cade". Calgary Herald. 2010-11-11. p. 78. Retrieved 2023-12-28.
  5. Male mating success, calling and searching behavior at high and low density in the field cricket, Gryllus integer William H. Cade & Elsa Salazar Cade, Animal Behavior, 1992, pp. 43, 49-56.
  6. Alternation calling and spacing patterns in the field cricket Acanthogryllus fortipes (Orthoptera; Gryllidae). William H. Cade and Daniel Otte, Canadian Journal of Zoology, pp. 2916-2920
  7. Cade, W. H. 1975. Acoustically orienting parasitoids: Fly phonotaxis to cricket song. Science 190: pp. 1312-1313.
  8. "Crickets on Mute: Hush falls as killer fly stalks singers". September 20, 2006.
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