02259nas a2200301   4500008004100000020001400041245012600055210006900181260000800250300001200258490000700270520140200277653001401679653001501693653001701708653002401725653001501749653001701764653001301781653001701794653001301811653002501824100001901849700001701868700001901885700001801904856003501922       2007                        eng d  a0929-139300aReproduction of the dung beetle (Copris tripartitus) in the dung of cattle treated with cis-cypermethrin and chlorpyrifos0 aReproduction of the dung beetle Copris tripartitus in the dung o  cMar  a546-5520 v353 aFresh dung was collected from untreated cattle and cattle dosed with a spray-on formulation of high cis-cypermethrin and chlorpyrifos (2.1 g/cow), on days 1, 3, 5 and 7 post-treatment. The survival and reproduction of the dung beetle Copris tripartitus Waterhouse, when given this dung was assessed. Residues of high cis-cypermethrin and chlorpyrifos in dung collected I day after treatment were sufficient to inhibit oviposition by female C. tripartitus. However, there was no significant effect on egg-laying in dung collected at days 3, 5 or 7 days post-treatment. In a second generation of C. tripartitus, derived from beetles fed the dung from treated animals, residues in dung collected both 1 and 3 days after treatment were sufficient to inhibit oviposition, and residues in dung collected 1 day after treatment inhibited dung consumption by newly emerged adults of C. tripartitus. It is concluded that dung voided by cattle treated with a spray-on formulation of high cis-cypermethrin and chlorpyrifos have toxic lethal effects for 1 day post-treatment and sub-lethal toxic effects on ovarian condition and brood-ball production in dung voided at 1 and 3 days posttreatment. The potential ecotoxic effects of these compounds are discussed in terms of dung beetle activity and strategies for parasite control of cattle in the Korean environment. (c) 2006 Elsevier B.V. All rights reserved.10aABAMECTIN10aCOLEOPTERA10aDung beetles10aINSECTS dung beetle10aIVERMECTIN10areproduction10aRESIDUES10aScarabaeidae10aSURVIVAL10asynthetic pyrethroid1 aBang, Hea, Son1 aLee, Joon-Ho1 aNa, Young, Eun1 aWall, Richard  u<Go to ISI>://000244172100010 01674nas a2200193   4500008004100000245014400041210006900185300001200254490000600266520093500272653001601207653003001223653001701253653001701270653001601287100001501303700002401318856013801342       1997                        eng d00aPossible risk posed by drift of the insect growth regulator pyriproxyfen to the rare dung beetle Circellium bacchus (F.) in a national park0 aPossible risk posed by drift of the insect growth regulator pyri  a215-2200 v13 aAerial drift of the juvenile hormone analogue (JHA), pyriproxyfen (Nemesis 100 ec®), used to control red scale on citrus on farms close to the Addo Elephant National Park in South Africa, was suspected of causing a decline in a population of the rare dung beetle species Circellium bacchus(F.) in the Park. The effect of pyriproxyfen on fertility and egg viability, as well as larval, pupal and callow adult development of C. bacchuswas studied in a laboratory assay. Adult beetles, soil surface and the initial dung supply were exposed to pyriproxyfen applied as a spray at 10 times less than the concentration used commercially to simulate spray drift. Exposure of adult beetles to pyriproxyfen did not affect egg production or the viability of eggs, nor did the compound have adverse effects on immature development, indicating that pyriproxyfen is unlikely to be the cause of the observed population depression of C. bacchus.10adevelopment10ajuvenile hormone analogue10areproduction10aScarabaeidae10aspray drift1 aKruger, K.1 aScholtz, Clarke, H.  uhttps://scarabnet.myspecies.info/possible-risk-posed-drift-insect-growth-regulator-pyriproxyfen-rare-dung-beetle-circellium-bacchus-f00699nas a2200169   4500008004800000245012200048210006900170260001200239300001000251490000700261653002300268653002500291653001700316100003100333700002700364856013800391       2005                        portdguese  00aAvaliacao de indices reprodutivos em besouro africano (Digitonthophagus gazella Fabricius) (Coleoptera: Scarabaeidae)0 aAvaliacao de indices reprodutivos em besouro africano Digitontho  cSep/Dec  a61-680 v2110abiological control10acoprophagous beetles10areproduction1 aFonseca, Vania, Maria de O1 aKerr, Warwick, Estevam  uhttps://scarabnet.myspecies.info/avaliacao-de-indices-reprodutivos-em-besouro-africano-digitonthophagus-gazella-fabricius-coleoptera-03256nas a2200325   4500008004100000245009200041210006900133300001200202490000800214520225500222653002602477653003702503653001102540653001402551653001502565653001702580653001702597653001502614653002502629653002002654653001602674653001302690653001702703653001702720653002202737653002102759100001902780700001602799856011502815       2001                        eng d00aBody size and paternal invest ment in the genus Onthophagus (Coleoptera, Scarabaeoidea)0 aBody size and paternal invest ment in the genus Onthophagus Cole  a405-4120 v2553 aDuring reproduction, dung beetles of the genus Onthophagus typically bury portions of dung removed from the dung pad. Even though females are capable of successfully constructing and provisioning nests when unaccompanied by males, extensive levels of co-operation between sexes have been reported. In some species, males show a clear dimorphism in body plan and only large horned males are known to assist females. In O. taurus this form of paternal investment is facultative and depends on social context (namely the presence of other males). We studied relationships between body size and paternal investment in five Onthophagus species (i.e. O. coenobita, O. fracticornis, O. illyricus, O. taurus and O. vacca). Two types of tests were established. In test A, a large and a small male were placed with a single, medium-size female, in test B, a large and a small female were placed with a single large male. In controls one male was placed with one female. Individuals were maintained for 10 days. Then the enclosures were opened to assess the position of each beetle. When two mates were found in close vicinity or in the same tunnel provisioning dung, a co-operative behaviour was assumed. In competitive tests, small males and small females never cooperated with their potential mates whilst large and medium-size individuals often co- operated with mates inside the same tunnels. No differences in frequencies of co-operation were found between large and medium-size females. Small females and small males scarcely co- operated with large or medium-size mates in controls. These results suggest that large individuals outcompete the small ones. They also suggest that paternal investment depends on body size of both mates. Large males of all species assist medium-size and large females, whereas small males do not. However, large males do not invest much parental effort on small females that, in fact, are poorly, assisted. We assume that large individuals of both sexes are reproductively superior to small ones. The propensity of both small females and small males to excavate was lower than that of larger individuals, accordingly, digging capacity could be a proximate factor explaining facultative paternal investment in these species.10aACUMINATUS COLEOPTERA10aALTERNATIVE REPRODUCTIVE TACTICS10abeetle10abody size10aBROOD CARE10aco-operation10aDung beetles10ainvestment10aMALE HORN DIMORPHISM10aMALE MORPHOLOGY10aOnthophagus10apaternal10areproduction10aScarabaeidae10aTAURUS COLEOPTERA10aVACCA COLEOPTERA1 aPalestrini, C.1 aRolando, A.  uhttps://scarabnet.myspecies.info/body-size-and-paternal-invest-ment-genus-onthophagus-coleoptera-scarabaeoidea