@article {1504,
	title = {A dung beetle survey of selected Gauteng nature reserves: implications for conservation of the provincial scarabaeine fauna},
	journal = {African Entomology},
	volume = {13},
	number = {1},
	year = {2005},
	pages = {1-16},
	abstract = {Aquantitativedungbeetlesurvey(Coleoptera:Scarabaeidae:Scarabaeinae)wasconducted insixGautengnaturereserves(Tswaing,Leeuwfontein,Roodeplaat,Ezemvelo,AbeBailey, Suikerbosrand) representativeof theprovincial rangeinenvironmental conditions. The studyprovidedaprovincial species inventorythat has beentestedfor completeness bycomparisonwithmuseumreferencematerial. It alsopermittedananalysisof major influencesonregional(altitude,annualrainfall)andlocal(soilandvegetationtype)patterns of speciesabundance. Thesurveyrecordedatotal of 152species. Althoughafurther29 specieswererepresentedinreferencecollections,theirabsencefromthepresentworkwas probablyduetohabitat,food,ortemporalspecializations.Multivariateanalyses(clustering, MDS)ofspeciesabundancedataformedsixclusters,eachcomprisingexclusivelythesitesin singlereserves. Thisindicatesthatregionalbetween-reservefaunaldifferencesaregreater thanlocal withinreservedifferences, thusdemonstratingthevalueof eachreserve. Ina hierarchical analysisofobliquefactors, fiveoutofsevenstatisticallydefinedclusterscom- prisedexclusivelythesitesinsinglereserveswithSuikerbosrandsplitintwo.Theseclusters werevariouslycorrelatedwithnineextendedfactors.Alongsevenfactors,correlationswere uniqueoressentiallyuniquetosinglereservesandwerefairlyhigh,particularlyatinterme- diatealtitude. Alongtheremainingtwosharedfactors, therewereopposingtrendsinthat correlationseitherdecreasedwithhigheraltitudeordecreasedwithloweraltitude. Thus, eachclustershowsthreecoefficientsofdetermination, onerepresentingtheproportionof varianceduetosharedhighlandfaunalinfluence,onerepresentingthatduetosharedlow- landfaunal influenceandthethirdrepresentingthatduetouniquelocal faunal composi- tion. Theanalysesidentifythetransitionfromlowlandtohighland-dominatedfaunas, the relativefaunal distinctivenessofeachreserve, andomissionsfromtheprovincial reserve system.},
	keywords = {conservation, Dung, Gauteng, nature reserve, Scarabaeinae, SouthAfrica, survey},
	author = {Davis, A. L. V. and Scholtz, Clarke H. and Deschodt, C.}
}
@article {1897,
	title = {Effects of cattle treatment with a fluazuron pour-on on survival and reproduction of the dung beetle species Onthophagus gazella (Fabricius)},
	journal = {Veterinary Parasitology},
	volume = {143},
	year = {2007},
	pages = {380-384},
	abstract = {While resistance against many other classes of acaricides has been described, products containing benzoylphenyl urea are currently still successfully used against the pesticide-resistant blue tick (Boophilus decoloratus) in South Africa. In order to assess any adverse impact of these tickicides on the important dung beetle (Coleoptera: Scarabaeidae) fauna, a bioassay was undertaken on the ecotoxicological effects of a fluazuron (benzoylphenyl urea) pour-on formulation (Acatak1) on the survival and reproduction of the African dung beetles species Onthophagus gazella (Fabricius). The experiment yielded no significant differences in adult or larval survival, egg production, fecundity and fertility between the control and treatment group following three beetle generations over. These results suggested that treatment of cattle with the fluazuron pour-on formulation Acatak1 was not detrimental to the selected dung beetle species in any notable way.},
	keywords = {Acaricide, Benzoylphenyl urea, Boophilus decoloratus, dung beetle, ecotoxicological effect, Fluazuron, Onthophagus gazella},
	author = {Kryger, U. and Deschodt, C. and Davis, A. L. V. and Scholtz, Clarke H.}
}
