TY - JOUR T1 - Interactions between dung, plants and the dung fauna in a heathland in northern Italy JF - Pedobiologia Y1 - 1999 A1 - Borghesio, L. A1 - Luzzatto, M. A1 - Palestrini, C. SP - 97 EP - 109 KW - abundance KW - beetles coleoptera KW - bush fly KW - cattle dung KW - disappearance KW - dung degradation KW - dung fauna KW - earthworms KW - Europe KW - muscidae KW - plant growth KW - Scarabaeidae KW - sheep dung KW - vetustissima walker diptera AB - The influence of the insect fauna on cattle dung degradation and the development of a natural vegetal community was studied during three successive summers in a heathland in northern Italy. In 1992 and 1993, small (864 cm(2)) rectangular iron sheet frames were placed on the ground and assigned to three experimental groups: one (Control) had no dung, the second contained an artificially made (0.5 kg) dung pat protected with a mesh in order to exclude insects, while the third group contained dung which was colonised by insects. Above-ground primary production within the cages was collected at regular intervals from June to September. Dung addition had a huge effect on plant growth in both years (+29-31 %), in addition to this, in the first year, but not in the second, dung insects transferred to the soil an amount of organic material that also significantly stimulated (+14.5 %) the external growth of the plants. We suggest that the difference between 1992 and 1993 could have been determined by different numbers of grazing cattle in the study area: in consequence of this, we hypothesise that dung insects populations were larger and more active in the first year compared with the second. In 1994, the role of the insect fauna on dung degradation was investigated in greater detail. The total dry matter decrease in dung attributable to the activity of the insect community, after 20 days from dung deposition, was 18.4 % of the original dry weight; of that percentage, less than one third (5.8 %) was related to underground nesting (paracoprid) beetles. Earthworms were not active in the season when our survey was carried out. We concluded that the dung insect fauna can influence dung degradation and the growth of a natural plant community occurring on an acidic and impoverished soil, but that these effects are only of minor importance. This seems to be a consequence of the low densities of dung beetles in the study area and the absence of large-sized paracoprid and telecoprid scarabaeid species. VL - 43 UR - ://000079093300001 N1 - Times Cited: 2Cited Reference Count: 58Cited References: ANDERSON JR, 1984, J ECON ENTOMOL, V77, P133 BISTROM O, 1991, ENTOMOL FENNICA, V27, P53 BORNEMISSZA GF, 1976, AUSTR MEAT RES COMMI, V30, P1 BORNEMISSZA GF, 1970, PEDOBIOLOGIA, V10, P1 BREYMEYER A, 1974, EKOL POL, V22, P617 BRYAN RP, 1976, AUSTR J AGR RES, V27, P567 CALAFIORI MH, 1979, INFLUENCIA DICHOTOMI CAMBEFORT Y, 1986, ACTA OECOL-OEC GEN, V7, P17 CAMBEFORT Y, 1991, DUNG BEETLE ECOLOGY, P51 DEBIAGGI E, 1990, RIV PIEMONTESE STORI, V11, P3 DOUBE BM, 1991, DUNG BEETLE ECOLOGY, P97 DOUBE BM, 1991, DUNG BEETLE ECOLOGY, P255 DOUBE BM, 1990, ECOL ENTOMOL, V15, P371 DOUBE BM, 1988, ECOL ENTOMOL, V13, P251 ELLENBERG H, 1986, VEGETATION ECOLOGY C FINCHER GT, 1986, BIOL CONTROL MUSCOID FINCHER GT, 1981, J GA ENTOMOL SOC, V16, P316 FINCHER GT, 1975, J PARASITOL, V61, P759 FINCHER GT, 1973, J PARASITOL, V59, P396 GILLARD P, 1967, J AUST I AGR SCI, V33, P30 GUGLIELMETTOMUG.L, 1996, ALLIONIA, V34, P343 HALFFTER O, 1982, NESTING BEHAV DUNG B HANSKI I, 1991, DUNG BEETLE ECOLOGY, P5 HANSKI I, 1991, DUNG BEETLE ECOLOGY, P75 HIRSCHBERGER P, 1994, PEDOBIOLOGIA, V38, P375 HIRSCHBERGER P, 1994, PEDOBIOLOGIA, V38, P475 HOLTER P, 1983, EARTHWORM ECOLOGY, P49 HOLTER P, 1988, HOLARCTIC ECOL, V11, P81 HOLTER P, 1982, OIKOS, V39, P213 HOLTER P, 1979, OIKOS, V32, P393 HOLTER P, 1975, OIKOS, V26, P177 HUGHES RD, 1978, B ENTOMOL RES, V68, P361 HUGHES RD, 1985, J AUST ENTOMOL SOC, V24, P65 HUGHES RD, 1975, J AUST ENTOMOL SOC, V14, P129 KABIR SMH, 1985, BANGLADESH J AGR, V10, P49 KIRK AA, 1982, B ENTOMOL RES, V73, P129 KIRK AA, 1992, ENTOMOPHAGA, V37, P507 LAMARET JP, 1991, DRUG BEETLE ECOLOGY, P97 LUMARET JP, 1983, B SOC ENTOMOL FR, V88, P481 LUMARET JP, 1980, ECOL MEDIT, V5, P51 LUMARET JP, 1990, MUSEUM NATL HIST NAT MACQUEEN A, 1975, CAN J PLANT SCI, V55, P961 MITTAL IC, 1993, TROPICAL ECOLOGY, V34, P150 NAKAMURA Y, 1975, PEDOBIOLOGIA, V15, P129 PAPP L, 1992, FOLIA ENTOMOLOGICA H, V54, P107 RIDSDILLSMITH TJ, 1988, B ENTOMOL RES, V78, P633 RIDSDILLSMITH TJ, 1986, ENTOMOL EXP APPL, V41, P83 RIDSDILLSMITH TJ, 1982, ENTOMOL EXP APPL, V32, P80 RIDSDILLSMITH TJ, 1982, P 3 AUST C GRASSL IN ROUGON D, 1981, AGECOP LIAISON, V59, P36 ROUGON D, 1988, REV ECOLOGIE BIOL SO, V25, P413 SALIN M, 1992, APPL STAT CON SPSS SESTINI A, 1957, ITALIA FISICA UREN SC, 1997, J APPL ECOL, V34, P208 VALIELA I, 1974, AM MIDL NAT, V92, P370 WASSMER T, 1995, ACTA OECOL, V16, P461 WATERHOUSE DF, 1974, SCI AM, V230, P100 ZUNINO M, 1994, ECOLOGY ETHOLOGY EVO, V6, P451EnglishArticle175KVPEDOBIOLOGIA ER -