01553nas a2200121   4500008004100000245012900041210006900170300001200239490000700251520107600258100001701334856008001351       1995                        eng d00aHabitat selection and offspring survival rate in three paracoprid dung beetles: the influence of soil type and soil moisture0 aHabitat selection and offspring survival rate in three paracopri  a147-1540 v183 aParacoprid dung beetles build brood chambers in the soil beneath a dung pat and provide them with dung Onthophagus species lay one egg into each chamber This paper deals with the influence of soil type and soil moisture on micro-habitat selection and survival of offspring m three middle-European Onthophagus-species (O coenobita, O fracticonis and O vacca) Discrimination between sandy soils with three different loam contents (0%, 20%, 40%) and four different water contents (4%, 8%, 12%, 16%) was tested in the laboratory During the first 24 h of each replicate beetles which colonized one of the patches did not distinguish between different soil conditions Emigration rates, measured as time when 50% of all individuals had left the patch, and numbers of brood chambers proved to be species specific and depended on soil moisture and soil type Survival rates of the larvae in the brood chambers were influenced nearly exclusively by soil moisture The results are discussed in relation to the ecology of the three species and in context with optimal foraging theories1 aSowig, Peter  uhttp://www.blackwell-synergy.com/doi/abs/10.1111/j.1600-0587.1995.tb00335.x02248nas a2200277   4500008004100000245016500041210006900206300001200275490000700287520122500294653001401519653001301533653001601546653001601562653001401578653002601592653003801618653001801656653003601674653001601710653004001726653003201766653001701798100001701815856013801832       1996                        eng d00aBrood care in the dung beetle Onthophagus vacca (Coleoptera: Scarabaeidae): The effect of soil moisture on time budget, nest structure, and reproductive success0 aBrood care in the dung beetle Onthophagus vacca Coleoptera Scara  a254-2580 v193 aUnder laboratory conditions brood care behaviour, nest structure and weight of dung supply in brood chambers of the dung beetle Onthophagus vacca proved to depend on water content of the soil beneath the dung. The substrate in a bucket beneath the dung pat was dry sand (4% water content) or moist sand (8% water content). Emigrating beetles were trapped and counted at 12 h intervals. In a total of 109 replicates one pair was released on an artificial 1000 g dung pat. From 95 replicates in which brood chambers were built the following results were derived: 1) Breeding females and resident males which helped the female stayed longer in dung pats on dry sand than in those on moist sand. 2) Nest architecture was influenced by substrate moisture: length of main tunnels did not differ between nests in dry and moist sand, but total length of side tunnels was shorter in dry sand. 3) Numbers of brood chambers were equal in both substrate types, weight of the dung supplies was larger in dry sand. 4) Offspring size was not only influenced by dung provision in the brood chambers. Beetles emerging from chambers in dry sand were smaller than those emerging from moist sand even if the amount of dung supply was equal.10aAnimalia-10aAnimals-10aArthropoda-10aArthropods-10aBehavior-10aColeoptera-: Insecta-10aEcology- (Environmental-Sciences)10aInvertebrata-10aOnthophagus-vacca (Coleoptera-)10aPhysiology-10aReproductive-System (Reproduction-)10aScarabaeidae- (Coleoptera-)10aSoil-Science1 aSowig, Peter  uhttps://scarabnet.myspecies.info/brood-care-dung-beetle-onthophagus-vacca-coleoptera-scarabaeidae-effect-soil-moisture-time-budget-ne00479nas a2200121   4500008004100000245008000041210006900121300001200190490000700202100002000209700001700229856011100246       1994                        eng d00aDie coprophagen Kafer der Schafweide "Flachsland" am Schonberg bei Freiburg0 aDie coprophagen Kafer der Schafweide Flachsland am Schonberg bei  a355-3760 v691 aWassmer, Thomas1 aSowig, Peter  uhttps://scarabnet.myspecies.info/die-coprophagen-kafer-der-schafweide-flachsland-am-schonberg-bei-freiburg