INFLUENCE OF ADULT BODY SIZE AND THE MALE PRONOTAL HORN ON PHENOTYPIC VARIATION IN <i>ONTHOPHAGUS BINODIS</i> THUNBERG (COLEOPTERA: SCARABAEIDAE)

Cook, Dvid F.

doi:10.1111/j.1440-6055.1993.tb00541.x

Cited by 5 publications

(3 citation statements)

References 16 publications

(18 reference statements)

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“…Progeny size has been associated with non‐genetic traits such as the dung provision by adults (Cook, 1993; Juliano, 1985). Much of the variation in size within dung beetle populations is attributed to environmental pressure that is applied to the breeding adults (Fox & Czesak, 2000).…”

Section: Discussionmentioning

confidence: 99%

“…The provisioning of broods with greater amounts of dung influences the horn morphological traits and brood masses of dung beetles (Cook, 1988; Cook, 1990; Eberhard, 1982; Hunt & Simmons, 2000; Hunt & Simmons, 2004). Larger male beetles are able to provide more dung by working cooperatively with reproductive females compared with smaller beetles of the same species (Cook, 1988; Cook, 1993). We found, however, that there was no influence of dung pH on brood size (dry weight) and, thus, brood provisioning.…”

Section: Discussionmentioning

confidence: 99%

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The interaction between Onthophagus binodis and cattle dung pH: Impacts on reproduction and offspring phenology

Heddle,

Hemmings,

Burns

et al. 2024

Physiological Entomology

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The environment surrounding invertebrates can influence the physiology of larval offspring. Dung beetles provide several significant ecological functions, including dung breakdown, fly control and nutrient cycling. Cattle diet influences the chemical and physical constituents of dung, of which pH is considered critical. Few studies have assessed this, though a pH of 6.3 is the lowest threshold for dung beetle reproduction. We investigated the effects of an introduced and widespread dung beetle (Onthophagus binodis) on cattle dung pH (7.3, 6.0 and 5.0) and pH on O. binodis reproduction, offspring phenotypic traits and development time. Dung beetle presence increased the Δ pH (more alkaline) within dung pads after 96 h. Dung beetles produced broods in dung with a pH of 5.0, though in fewer numbers compared with the other pH treatments. Larval development was delayed in pH 5.0 with an average of 50 days compared with 44 days in dung with pH 6, 7, and the control (7.3). Smaller broods (ellipsoid volume [mm3]) were produced in dung with a pH of 5.0 compared with pH 6.0 and 7.0, and offspring emerging from broods produced from dung with a pH of 6.0 were larger compared with the other pH treatments. Our results show that dung pH is important for brood production and progeny phenotypic traits of O. binodis, an agricultural ecosystem engineer and that there is no experimental evidence to support the suggestion that dung pH influences the provisioning of broods in this species.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The interaction between Onthophagus binodis and cattle dung pH: Impacts on reproduction and offspring phenology

Heddle,

Hemmings,

Burns

et al. 2024

Physiological Entomology

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“…Of them, elytral length has been frequently used for studies of coleopteran body size (e.g., Schmitz et al 2000 , Smith et al 2000 , Hernández et al 2011 , Knapp and Uhnava 2014 ). The other three have also been shown to be relevant with body size ( Cook 1993 , Smith et al 2000 , Fowler et al 2015 ). As we did not know which trait(s) would be most reasonable for rice water weevil, we first measured each of them and then screened for the best one using principal component analysis (see Statistical Analysis).…”

Section: Methodsmentioning

confidence: 99%

Variation of Body Size in Rice Water Weevil (Coleoptera: Curculionidae) and Its Associations with Population Biology

Huang

Jiang

et al. 2018

Journal of Insect Science

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Life history characteristics help us to determine the ability of invasive species to establish and thrive in an exotic environment. However, so far, there have been very few reports concerning geographic variation in the body size of invasive insects and the associations between body size variation and population biology. In this study, we surveyed the geographic variation in body size of an invasive agricultural pest, the rice water weevil Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae), in China. Its body size variation was found to follow Bergmann’s rule, a size cline related to latitude/altitude in which weevils tended to be larger in higher latitude/altitude localities. Moreover, using adults of different body size within populations, we also characterized the relationship between body size and some population traits of this weevil, including reproduction, food consumption, cold tolerance, and agility. The results showed that, large and mid-size adults (within populations) tended to consume more rice leaves, and larger adults also laid more and longer eggs, when compared with smaller adults. However, smaller adults appeared to have higher agility. In conclusion, body size of rice water weevil varies significantly with geography, and body size variation (within populations) may affect life history traits.

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Diversity in the Weapons of Sexual Selection: Horn Evolution in the Beetle Genus Onthophagus (Coleoptera: Scarabaeidae)

et al. 2005

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Abstract. Both ornaments and weapons of sexual selection frequently exhibit prolific interspecific diversity of form. Yet, most studies of this diversity have focused on ornaments involved with female mate choice, rather than on the weapons of male competition. With few exceptions, the mechanisms of divergence in weapon morphology remain largely unexplored. Here, we characterize the evolutionary radiation of one type of weapon: beetle horns. We use partial sequences from four nuclear and three mitochondrial genes to develop a phylogenetic hypothesis for a worldwide sample of 48 species from the dung beetle genus Onthophagus (Coleoptera: Scarabaeidae). We then use these data to test for multiple evolutionary origins of horns and to characterize the evolutionary radiation of horns. Although our limited sampling of one of the world's most species-rich genera almost certainly underestimates the number of evolutionary events, our phylogeny reveals prolific evolutionary lability of these exaggerated sexually selected weapons (more than 25 separate gains and losses of five different horn types). We discuss these results in the context of the natural history of these beetles and explore ways that sexual selection and ecology may have interacted to generate this extraordinary diversity of weapon morphology.Key words. Adaptive radiation, beetle horns, character divergence, male competition, Onthophagus, phylogeny, sexual selection, weapons.Received October 18, 2004. Accepted January 23, 2005 The history of life has been accentuated by several spectacular evolutionary radiations (Darwin 1871;Simpson 1949;Rensch 1959), and character divergence within these radiations frequently involves the exaggerated structures of sexual selection (Darwin 1871; West Eberhard 1983; Andersson 1994). The Hawaiian radiation of drosophilid flies, for example, has resulted in more than 900 extant species that differ most conspicuously in the wing patterns and courtship displays of males (Carson 1979;Templeton 1979;Kaneshiro and Boake 1987;Hoy et al. 1988;Kaneshiro 1988;Kambysellis et al. 1995). Similarly, radiations of birds-of-paradise, pheasants, and African Great Lake cichlids all involve the ornaments and displays of males (Beebe 1953;Gilliard 1969;Dominey 1984;Diamond 1986;Turner 1994;Deutsch 1997;Prum 1997;Frith and Beehler 1998; van Oppen et al. 1998). In fact, for a great many animals, the exaggerated structures of sexual selection display an evolutionary lability far surpassing that of other, not sexually selected structures (Darwin 1871;Geist 1966Geist , 1978Gilliard 1969; West-Eberhard 1983; Andersson 1994).Diversification of the ornaments and displays of mate choice is understandable-even expected. Numerous studies suggest that female choice can drive rapid divergence among populations (Lande 1981; West Eberhard 1983;Kaneshiro and Boake 1987;Endler and Houde 1995; van Oppen et al. 1998; Boake 2000;Uy and Borgia 2000;Boughman 2001;Masta and Maddison 2002;Mendelson 2003;Coleman et al. 2004). Founder events, genetic drift, and minor...

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INFLUENCE OF ADULT BODY SIZE AND THE MALE PRONOTAL HORN ON PHENOTYPIC VARIATION IN ONTHOPHAGUS BINODIS THUNBERG (COLEOPTERA: SCARABAEIDAE)

Cited by 5 publications

References 16 publications

The interaction between Onthophagus binodis and cattle dung pH: Impacts on reproduction and offspring phenology

The interaction between Onthophagus binodis and cattle dung pH: Impacts on reproduction and offspring phenology

Variation of Body Size in Rice Water Weevil (Coleoptera: Curculionidae) and Its Associations with Population Biology

Diversity in the Weapons of Sexual Selection: Horn Evolution in the Beetle Genus Onthophagus (Coleoptera: Scarabaeidae)

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