Abstract
The effect ofAphodius sphacelatus andA. ater activity in cattle faeces andSphaeridium bipustulatum in sheep and horse faeces on the discharge ofPilobolus sporangia was investigated under laboratory conditions. In five trials, the median number of sporangia produced was significantly less (P<0.01) in experimental chambers (with 1 or 2 beetles/g faeces) than in control chambers (without beetles). In addition, median percentage reduction of sporangia was significantly higher (P<0.01) forA. sphacelatus (80.9%) than forA. ater (56.9%) at 1 beetle/g cattle faeces.
Résumé
L'effet de l'activité d'Aphodius spacelatus et deA. ater dans les bouses de vaches et deSphaeridium bipustulatum dans les fèces de moutons et de chevaux, sur la libération de sporanges parPilobolus a été étudié en conditions de laboratoire. Sur 5 essais le nombre médian de sporanges libérés dans des cellules expérimentales (avec 1 ou 2 bousiers/g fèces) était significativement inférieur (P<0.01) à celui obtenu dans des cellules témoins (sans bousier). De plus, le pourcentage médian de réduction des sporanges est significativement plus élevé (P<0,01) pourA. sphacelatus (80,9%) que pourA. ater (56,9%) à la densité de 1 bousier/g de bouse.
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Biggane, R.P.J., Gormally, M.J. The effect of dung beetle activity on the discharge ofPilobolus (Fungi, mucorales) sporangia in cattle, sheep and horse faeces. Entomophaga 39, 95–98 (1994). https://doi.org/10.1007/BF02373498
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DOI: https://doi.org/10.1007/BF02373498