CHAPTER 9. Dung Beetles in Tropical Savannas

Cambefort, Yves

doi:10.1515/9781400862092.156

Cited by 70 publications

(63 citation statements)

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“…O aumento na diversidade de mamíferos acarreta maior disponibilização de recursos alimentares para os besouros rola-bostas, que se alimentam de fezes e carcaças. Essa relação entre maior riqueza de besouros rola-bostas com a maior quantidade de grandes mamíferos também foi observada em savanas africanas (Cambefort 1991, Davis et al 1999.…”

Section: Discussionunclassified

Heterogeneidade do habitat, riqueza e estrutura da assembléia de besouros rola-bostas (Scarabaeidae: Scarabaeinae) em áreas de cerrado na Chapada dos Parecis, MT

Silva¹,

Diniz²,

Vaz‐de‐Mello³

2010

Neotrop. entomol.

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-Ecological theory of habitat heterogeneity and limited niche-similarity assumes that more heterogeneous environments provide a greater amount and diversity of resources than simple environments, resulting in a greater diversity of species. This study aimed to evaluate the effect of the habitat heterogeneity on the richness of dung beetles and to examine the spatial patterns of assemblage structure in relation to patterns of habitat heterogeneity. Dung beetles were collected using pitfall traps without bait in 30 points distributed in an area of cerrado sensu lato, in the region of Tangará da Serra, MT, Brazil, including areas of cerrado sensu stricto, campo sujo, cerradão and gallery forest. A total of 1,291 dung beetles were collected, distributed in 16 genera and 29 species. Overall habitat heterogeneity exerted a negative effect on patterns of dung beetles richness. Higher levels of species richness were observed in areas of cerrado campo sujo, while the areas of gallery forest were the most species poor. Regarding assembly structure, it was found that the dung beetles were separated into two major groups, one formed by the presence of specialized species in forest areas and other composed of species that occurred predominantly in cerrado. In conclusion, it was found that habitat complexity infl uenced the distribution of dung beetles, but the level of turnover in species composition along the heterogeneity gradient was relatively weak.

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Section: Discussionunclassified

Heterogeneidade do habitat, riqueza e estrutura da assembléia de besouros rola-bostas (Scarabaeidae: Scarabaeinae) em áreas de cerrado na Chapada dos Parecis, MT

Silva¹,

Diniz²,

Vaz‐de‐Mello³

2010

Neotrop. entomol.

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“…In Madagascar, lemurs are the most important mammalian group for dung beetles, as the use of ungulate and primate dung is the norm in Scarabaeidae and there are no native ungulates in Madagascar (apart from the now extinct hippopotami). Only specialized dung beetle species use carnivore or insectivore dung, while the use of carrion is more common (Cambefort, 1991c).…”

Section: Adaptive Radiationmentioning

confidence: 99%

“…One important exception is nocturnal activity, which has not evolved in Helictopleurini though is common in e.g. Onthophagini (Cambefort, 1991c). A likely reason is the presence of large numbers of Canthonini in forests in Madagascar; the two tribes appear to have divided the diel niche among themselves (Viljanen, 2004).…”

Section: Evolutionary Ecology Of Helictopleurini and Related Tribesmentioning

confidence: 99%

“…Aphodiidae, though abundant, are small in body size and typically inferior in competition to largebodied Scarabaeidae . Altogether, local Scarabaeidae dung beetle communities in open habitats in Madagascar consist of 2-11 species (Rahagalala et al, in preparation), which is strikingly less than in cattle dung communities in mainland Africa, with typically 50-60 or more locally coexisting species (Cambefort, 1991c).…”

Section: A Recent Ecological Shiftmentioning

confidence: 99%

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An old adaptive radiation of forest dung beetles in Madagascar

Wirta

Orsini

Hanski

2008

Molecular Phylogenetics and Evolution

118

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a b s t r a c tAdaptive radiations of mammals have contributed to the exceptionally high levels of biodiversity and endemism in Madagascar. Here we examine the evolutionary history of the endemic dung beetle tribe Helictopleurini (Scarabaeidae) and its relationship to the widely distributed Oniticellini and Onthophagini. Helictopleurini species are dependent on mammals for their resources. We date the single origin of the tribe at 37 to 23 MY ago, indicating overseas colonization of Madagascar. The main radiation occurred concurrently with the main radiations of lemurs. The ancestors of Helictopleurini are inferred to have been coprophagous species inhabiting open habitats. Subsequent evolution has involved a shift into forests, changes in resource use to a more generalized diet, and changes in body size. Four species of the extant 65 species have shifted to use the dung of the recently introduced cattle in open habitats, allowing these species to greatly expand their geographical ranges.

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“…Also, both Didactyliina and Proctophanina show the highest species and endemic species richness in this region. Although Palaeotropical dung beetle communities tend to be dominated by Scarabaeinae individuals (Cambefort, 1991;A.L.V. Davis et al, 2002;Doube, 1991), some studies show that the abundance of Aphodiini in some localities can sometimes be very high, or even the highest (Bernon, 1981;Krell et al, 2003;D.…”

Section: Regional Characteristicsmentioning

confidence: 99%

Composition and Distribution Patterns of Species at a Global Biogeographic Region Scale: Biogeography of Aphodiini Dung Beetles (Coleoptera, Scarabaeidae) Based on Species Geographic and Taxonomic Data

Jos

2012

Global Advances in Biogeography

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CHAPTER 9. Dung Beetles in Tropical Savannas

Cited by 70 publications

References 0 publications

Heterogeneidade do habitat, riqueza e estrutura da assembléia de besouros rola-bostas (Scarabaeidae: Scarabaeinae) em áreas de cerrado na Chapada dos Parecis, MT

Heterogeneidade do habitat, riqueza e estrutura da assembléia de besouros rola-bostas (Scarabaeidae: Scarabaeinae) em áreas de cerrado na Chapada dos Parecis, MT

An old adaptive radiation of forest dung beetles in Madagascar

Composition and Distribution Patterns of Species at a Global Biogeographic Region Scale: Biogeography of Aphodiini Dung Beetles (Coleoptera, Scarabaeidae) Based on Species Geographic and Taxonomic Data

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