@article {1326,
	title = {Impact of the activity of dung beetles (Coleoptera : Scarabaeidae : Scarabaeinae) inhabiting pasture land in Durango, Mexico},
	journal = {Environmental Entomology},
	volume = {33},
	number = {5},
	year = {2004},
	note = {digital copyhave copy},
	month = {Oct},
	pages = {1306-1312},
	abstract = {In this study, I analyzed the diversity of the dung beetle community (Coleoptera: Scarabaeidae: Scarabaeinae) in relation to its bovine dung-removal efficiency in a cattle ranch with a load of 250 animals currently under holistic resource management. A total of 3,430 individuals of 8 Scarabaeinae species was collected, of which 5 species are abundant in the area: Euoniticellus intermedius (Reiche), Digitonthophagus gazella (Fabricius), Onthophagus mexicanus Bates, O. knulli Howden and Cartwright, and Canthon humectus (Say). Of these 5 species, E. intermedius, D. gazella, and C. humectus were dominant in terms of abundance and biomass. Cattle dung pats were exploited mostly within the first 48 h after deposition. The activity and abundance of dung beetles recorded in the study were insufficient to remove the amount of fresh dung deposited in cattle pastureland.},
	keywords = {assemblages, baited pitfall traps, cattle, diversity, dung beetle, Dung beetles, Durango, ecological function, ecosystem service, ecosystems, holistic resource management, insects, larvae, scarabaeoidea col communities},
	url = {<Go to ISI>://000224606000022},
	author = {Sofia Anduaga}
}
@article {1705,
	title = {Reduced Splash Dispersal of Bovine Parasitic Nematodes from Cow Pats by the Dung Beetle Diastellopalpus-Quinquedens},
	journal = {Journal of Parasitology},
	volume = {78},
	number = {5},
	year = {1992},
	note = {have copy},
	month = {Oct},
	pages = {845-848},
	abstract = {From a thoroughly mixed portion of cattle feces with Cooperia sp. eggs, 1-kg artificial pats were placed in 6 buckets containing 6 kg of soil each. Ten dung beetles, Diastellopalpus quinquedens, were added to each of 3 buckets. The remaining 3 buckets served as controls without beetles. When infective parasite larvae (L3) had developed in the cow pats indoors, the following procedure was followed. During occasions of rainfall each bucket was placed outdoors in the center of a wider and higher container. When the rain stopped all buckets were brought indoors, and infective larvae spread by splash droplets during the rain were collected in the containers and counted. After 33 days, the remaining dung on the soil surface in buckets with dung beetles constituted only 38\% of that in the controls. Moreover, the number of L3 in feces left on the soil surface in the buckets with beetles was reduced by 88\%, presumably due to beetle activity. This may explain the 70-90\% reduction in splash dispersal of L3 of Cooperia sp. from cow pats attacked by beetles. The dung-burying activity of the beetles did not result in increased numbers of L3 in the soil under the cow pats, suggesting that many of the parasites in buried feces were destroyed.},
	keywords = {cooperia, dung beetle, ecological function, ecosystem service, larvae, trichostrongylidae},
	url = {<Go to ISI>://A1992JR77300017},
	author = {Gronvold, J. and Sommer, C. and Holter, P. and Nansen, P.}
}
@article {1984,
	title = {Dimorfismo sexual en larvas de Scarabaeoidea (Coleoptera)},
	journal = {m3m: Monografias Tercer Milenio},
	volume = {3},
	year = {2003},
	month = {sep},
	pages = {15-18},
	abstract = {A well defined sexual dimorphism is present in scarabaeoid larvae. Dimorphism was observed in late-age larvae of some species of Scarabaeidae, Aphodiidae, Trogidae, Orphinidae, Dynastidae, Passalidae and Lucanidae. This dimorphism manifests itself in the presence of a terminal ampulla, a cuticular structure situated in the ventral region of the 9th abdominal segment which is only present in male specimens. In Scarabaeidae, sexual dimorphism was only observed in the pupae of six species. The terminal ampulla in Canthon cyanellus cyanellus LeConte (Scarabaeidae) is present in the male larvae apparently since the first instar, and changes morphologically during the next larva instars. Only a detailed study of the morphogenesis of the terminal ampulla during the larval and pupal stages could help to define exactly what structures of the ejaculatory bulb and aedeagus it will turn into in the adult stage.},
	keywords = {larvae, Scarabaeoidea, sexual dimorphism.},
	author = {Martinez M. , Imelda and Lumaret, Jean-Pierre}
}
