@article {1449,
	title = {Dung beetle activity and the development of trichostrongylid eggs into infective larvae in cattle faeces},
	journal = {Veterinary Parasitology},
	volume = {118},
	number = {1-2},
	year = {2003},
	note = {julio has hard copy disease ecology, parasite transmission, scarbaeinae, ecological function},
	month = {Dec 1},
	pages = {157-163},
	abstract = {In the perspective to reduce the use of antiparasitic drugs, any interaction between the processes that control the development of parasite eggs into infective larval stages (L3) in dung and the activities of different dung-breeding organisms becomes of interest. The objective of the present study was to determine whether dung beetle activity affected the development of parasite larvae in cattle dung. Faeces containing eggs of parasites (predominately Cooperia spp.) were pooled according to high (250-600 epg) or low (approx. 100 epg) egg counts. Experimental dung pats were formed for each category of faeces and to half of these pats, dung beetles (20 Aphodius rufipes, 20 A. scybalarius syn. rufus) were added and kept for 12 days at 21degreesC (+/-1degreesC) and 90\% RH (+/-5\% RH). Beetles were then removed and the pats were divided in two where half the pat was incubated for an additional 12 days at 21degreesC (+/-1degreesC) and 90\% RH (+/-5\% RH) and the other half was immediately analysed. A greater number of L3 were recovered from the dung subjected to beetle activity compared with control dung (P < 0.001). However, following an additional 12 days incubation of the dung, similar numbers of L3 were recovered from beetle-affected dung with high egg counts, whereas there were significantly greater numbers of L3 derived from the control dung (P < 0.001). There was no significant difference in L3 recovery in the two categories of pats (i.e. high and low nematode egg counts). The results indicate that activity by Aphodius spp. in fresh dung can optimise conditions for nematode development to the infective larval stage if favourable environmental conditions prevail. Such synergistic effect may be due to the fact that dung beetles used in this study are dung dwellers, i.e. no substantial amount of the dung is removed or burrowed as these beetles feed, lay their eggs and the larval development takes place in brood chambers inside the dung. (C) 2003 Elsevier B.V. All rights reserved.},
	keywords = {Aphodius spp., avermectins, cattle dung, cattle-nematoda, cooperia-oncophora, Dung beetles, free-living stages, grazing cattle, impact, ivermectin dung beetle, nematode parasites, ostertagia-ostertagi, SURVIVAL, sweden},
	url = {<Go to ISI>://000187397900017},
	author = {Chirico, J. and Wiktelius, S. and Waller, P. J.}
}
@article {1450,
	title = {Dung beetle activity and the development of trichostrongylid eggs into infective larvae in cattle faeces},
	journal = {Veterinary Parasitology},
	volume = {118},
	number = {1-2},
	year = {2003},
	note = {julio has hard copy},
	month = {Dec 1},
	pages = {157-163},
	abstract = {In the perspective to reduce the use of antiparasitic drugs, any interaction between the processes that control the development of parasite eggs into infective larval stages (L3) in dung and the activities of different dung-breeding organisms becomes of interest. The objective of the present study was to determine whether dung beetle activity affected the development of parasite larvae in cattle dung. Faeces containing eggs of parasites (predominately Cooperia spp.) were pooled according to high (250-600 epg) or low (approx. 100 epg) egg counts. Experimental dung pats were formed for each category of faeces and to half of these pats, dung beetles (20 Aphodius rufipes, 20 A. scybalarius syn. rufus) were added and kept for 12 days at 21degreesC (+/-1degreesC) and 90\% RH (+/-5\% RH). Beetles were then removed and the pats were divided in two where half the pat was incubated for an additional 12 days at 21degreesC (+/-1degreesC) and 90\% RH (+/-5\% RH) and the other half was immediately analysed. A greater number of L3 were recovered from the dung subjected to beetle activity compared with control dung (P < 0.001). However, following an additional 12 days incubation of the dung, similar numbers of L3 were recovered from beetle-affected dung with high egg counts, whereas there were significantly greater numbers of L3 derived from the control dung (P < 0.001). There was no significant difference in L3 recovery in the two categories of pats (i.e. high and low nematode egg counts). The results indicate that activity by Aphodius spp. in fresh dung can optimise conditions for nematode development to the infective larval stage if favourable environmental conditions prevail. Such synergistic effect may be due to the fact that dung beetles used in this study are dung dwellers, i.e. no substantial amount of the dung is removed or burrowed as these beetles feed, lay their eggs and the larval development takes place in brood chambers inside the dung. (C) 2003 Elsevier B.V. All rights reserved.},
	keywords = {Aphodius spp., avermectins, cattle dung, cattle-nematoda, cooperia-oncophora, Dung beetles, free-living stages, grazing cattle, impact, IVERMECTIN, nematode parasites, ostertagia-ostertagi, SURVIVAL, sweden},
	url = {<Go to ISI>://000187397900017},
	author = {Chirico, J. and Wiktelius, S. and Waller, P. J.}
}
@article {1892,
	title = {Lethal and sublethal effects of ivermectin on the dung-breeding beetles Euoniticellus intermedius (Reiche) and Onitis alexis Klug (Coleoptera: Scarabaeidae)},
	journal = {Agriculture, Ecosystems and Environment},
	volume = {61},
	year = {1997},
	pages = {123-131},
	keywords = {avermectins, dung beetle, fecundity, fertility, larval development},
	author = {Kruger, K. and Scholtz, Clarke H.}
}
@article {2222,
	title = {Endoparasite control strategies: Implications for biodiversity of native fauna},
	journal = {International Journal for Parasitology},
	volume = {27},
	number = {2},
	year = {1997},
	note = {digital copy},
	month = {Feb},
	pages = {173-180},
	abstract = {Efforts to control the spectrum of diseases that affect humans, our crops and our animals pose problems which need to be debated openly. Widespread use of chemicals in such a broad sphere raises important concerns not only about safety for the users, consumers and target species, but especially about the not so obvious effects upon the ecosystems in which they are used. Some undetermined level of biological diversity is necessary to maintain ecological function and resilience. These, in turn, are necessary for generating the biological resources (trees, fish, wildlife, crops) and ecological services (watershed protection, air cleansing, climate stabilisation, erosion control) on which economic activity and human welfare depend, The driving forces behind decline of biodiversity stem entirely from human activities. Underlying causes are those resulting from the cultural and social factors associated with economic activities and lead to direct depletion of species, and degradation or destruction of habitats. The broad spectrum and high efficacy of the macrocyclic lactones against nematode and arthropod parasites of livestock and companion animals are unprecedented. Cattle, horses, sheep, swine, dogs-to varying degrees all are utilised by humans for economic gain. Detrimental impact upon non-target animals is considered acceptable in eradicating parasites because of their economic importance to commercial livestock production. Production will increase when these parasites are eliminated, but we remain oblivious to the long-term consequences of our actions, What are the ecological limits to rural economic activities? Decomposing animal faeces help to maintain our ecosystem by returning valuable nutrients to the soil. Dung fauna-fungi, yeast, bacteria, nematodes, insects and earthworms-play a non-conspicuous but important and varied role in this decomposition process, a role dependent upon many factors, especially environmental ones, Anthelmintics and pesticides are of considerable value in agriculture, but largely at an unevaluated cost to the greater environment, We have insufficient knowledge of the extent to which a spectrum of anthelmintics and pesticides affect ecological function and ecosystem resilience in our commercial plant and animal production systems. It is time we developed a genuine interest in avoiding {\textquoteright}{\textquoteright}the dialogue of the deaf{\textquoteright}{\textquoteright} that in the past has minimised interdisciplinary research between environmental ecology and commercial plant and animal production. (C) 1997 Australian Society for Parasitology. Published by Elsevier Science Ltd.},
	keywords = {anthelmintics, ANTIPARASITIC DRUG IVERMECTIN, avermectins, biological diversity, cattle dung, ecological function, ecological resilience, macrocyclic lactones, musca-vetustissima, pastureland ecology, pesticides, scarabaeine dung beetle, TREATING CATTLE},
	url = {<Go to ISI>://A1997WN33300006},
	author = {Spratt, D. M.}
}
