Food relocation behaviour in Eucraniina beetles (Scarabaeidae) and the constraints of xeric environment

Zunino, Mario; Barbero, Enrico; Luzzatto, M.

doi:10.1080/03946975.1989.10539440

Cited by 22 publications

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“…The results of behavioral observations and natural history of G. monticola and G. sterquilinus are very similar to those of G. centralis, but are described separately because the first two species observations were carried out by the author whereas the observation of G. centralis was conducted by Zunino et al (1989).…”

Section: Methodsmentioning

confidence: 58%

“…When the entrance of the burrow is reached, the beetles enter by walking forward rather than backward. Observations published by Zunino et al (1989) regarding the above behavioral character, suggested that the beetles drop the dung pellet turn back, and enter the nest walking backward dragging the pellet. I have not observed this for any Eucraniini species (see Ocampo 2003).…”

Section: Methodsmentioning

confidence: 99%

“…According to Zunino et al (1989) this species is mostly active during day between 9:00-11:00 am and sporadically between 4:30-5:30 pm at temperatures between 18-378C. This species occurs in open sandy areas that are mostly devoid of grass cover.…”

Section: Methodsmentioning

confidence: 99%

“…Observations of the food relocation behavior of G. centralis were conducted by Zunino et al (1989) in La Rioja, Argentina. According to Zunino et al (1989) this species is mostly active during day between 9:00-11:00 am and sporadically between 4:30-5:30 pm at temperatures between 18-378C.…”

Section: Methodsmentioning

confidence: 99%

“…With the exception of being listed in catalogs (Gemminger and Harold 1869;Gillet 1911;Bruch 1911;Blackwelder 1944;Martínez 1956) little research has been done on this genus in the last 130 years. The life history of some species of the tribe Eucraniini was reported by Halffter and Matthews (1966), Halffter and Edmonds (1982), and Zunino et al (1989Zunino et al ( , 1991. Zunino et al (1991) studied the life history and reported their observations on the food relocation behavior of G. centralis.…”

Section: Taxonomic Historymentioning

confidence: 99%

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Food Relocation Behavior and Synopsis of the Southern South American Genus Glyphoderus Westwood (Scarabaeidae: Scarabaeinae: Eucraniini)

Ocampo

2004

The Coleopterists Bulletin

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The Argentinean endemic Eucraniini genus Glyphoderus Westwood is redescribed, a key to species and a synopsis of the three known species, G. centralis Burmeister, G. monticola Burmeister, and G. sterquilinus (Westwood) is presented. The biology and food relocation behavior of the three species are described. A key to genera of the tribe Eucranini is also presented. ResumenEl género Glyphoderus Westwood endémico de Argentina es redescripto y se presenta una clave para las especies y una sinopsis de las tres especies conocidas, G. centralis Burmeister, G. monticola Burmeister y G. sterquilinus (Westwood). La biología del género es discutida y el comportamineto de relocación del alimento de las tres especies es descripto. Se presenta una clave para los géneros de la tribu Eucraniini.Glyphoderus Westwood is a small genus of the tribe Eucraniini (Scarabaeidae: Scarabaeinae). The Eucraniini is a unique tribe of dung beetles endemic to the Chaqueña and Monte biogeographic provinces in northwestern Argentina. The members of Eucraniini are unique in that they have very specialized ecological adaptations, exhibit unique behavior not seen in any other dung beetles, and occur only in specific desertthorn habitats of Argentina. The tribe consists of four genera: Anomiopsoides Blackwelder (five species), Ennearabdus Lansberge (one species), Eucranium Brullé (seven species), and Glyphoderus Westwood (three species) (Philips et al. 2002;Ocampo 2003Ocampo , 2004. This paper is a continuation of my work on the taxonomy and the evolution of the food relocation behavior of the genera of Eucraniini.Glyphoderus shares many derived character states with the genus Anomiopsoides (i.e., mesocoxae separated at base [ Fig. 1c] and mesotarsus longer than metatarsus). Based on phylogenetic hypothesis, they are sister taxa (see Philips et al. 2002;Ocampo 2004; in prep.).Nearly 250 specimens of Glyphoderus were studied for this work, 50% of which were originally misidentified or unidentified. This work provides a redescription of the genus Glyphoderus, including diagnosis, distribution, phenology, and illustrations of each species. A key to Eucraniini genera is also provided. These tools will prevent further misidentifications and misinterpretation of species distributions. The food relocation behavior of the three species of Glyphoderus is described.Images and videos on the food relocation behavior and natural history of the tribe Eucraniini are available on the World Wide Web at http://www-museum.unl.edu/ research/entomology/Eucraniini/Eucraniini1.html (Ocampo 2003). 295The Coleopterists Bulletin, 58(2): 295-305. 2004.

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Section: Methodsmentioning

confidence: 58%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Taxonomic Historymentioning

confidence: 99%

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Food Relocation Behavior and Synopsis of the Southern South American Genus Glyphoderus Westwood (Scarabaeidae: Scarabaeinae: Eucraniini)

Ocampo

2004

The Coleopterists Bulletin

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Evolution of flightlessness in Scarabaeoidea (Insecta, Coleoptera)

Scholtz¹

2000

Mitt. Mus. Nat.kd. Berl., Dtsch entomol.

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Flight clearly confers exceptional mobility on an insect, and conversely the lack of flight greatly restricts the area over which an insect can search for mates, oviposition sites and food. Therefore it is reasonable to expect that selection will favour the retention of flight in a highly variable environment and that non‐migratory life histories will most likely evolve in very persistent habitats. Environments with a higher than expected incidence of flightlessness amongst a wide variety of scarabaeoids are temperate highland forests in the tropics, mountains, deserts, islands, termite nests and cold regions. The flightlessness may be in either sexes or only the female and may be as a result of wing reduction or it may be behaviourally or physiologically induced. In some taxa flightlessness appears to be a random occurrence with a few species out of many in the taxon flightless whereas in others there is clearly a phylogenetic propensity for flightlessness with all or many species flightless. Flightlessness in some taxa is inexplicable in terms of current distribution and historical explanations must be advanced. The habitat with a predicted high incidence of flightlessness but which, in fact, has low incidence amongst scarabaeoids, is that in tropical forests. In addition, intimate phoretic associations with other animals, although relatively common and highly specialised, yield none of the expected evidence of flightlessness. It is proposed that biologically simple communities, in addition to stable habitats, contribute toward flightlessness. Flightlessness may evolve in one of two ways amongst scarabaeoids; where only females are flightless, the selective pressure to trade‐off flight against reproduction is paramount; where it occurs in both sexes, small microhabitats or high population density which increase the chances of sexual encounters, are overriding.

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Paleoenvironmental Analysis and Ichnoentomological Synthesis

Genise

2016

Topics in Geobiology

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Food relocation behaviour in Eucraniina beetles (Scarabaeidae) and the constraints of xeric environment

Cited by 22 publications

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Food Relocation Behavior and Synopsis of the Southern South American Genus Glyphoderus Westwood (Scarabaeidae: Scarabaeinae: Eucraniini)

Food Relocation Behavior and Synopsis of the Southern South American Genus Glyphoderus Westwood (Scarabaeidae: Scarabaeinae: Eucraniini)

Evolution of flightlessness in Scarabaeoidea (Insecta, Coleoptera)

Paleoenvironmental Analysis and Ichnoentomological Synthesis

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