02082nas a2200217   4500008004500000245016600045210006900211300001000280490000600290520127600296653001301572653000901585653001501594653001601609653001401625653001701639653001101656100003101667700002801698856013801726       2003                        spandsh  00aPreferencia por cebo de los escarabajos coprofagos (Coleoptera: Scarabaeidae: Scarabaeinae) de un remanente de bosque seco tropical al norte de Tolima (Colombia)0 aPreferencia por cebo de los escarabajos coprofagos Coleoptera Sc  a59-650 v33 aFeeding and nesting tactics may limit the effects of species overlapping on one particular resource in a diverse community (Halffter & Edmonds, 1982). Diversity of feeding habits characterizes the dung beetle groups of the Neotropics, and undoubtedly contributes to to the high species richness of this region (Gill, 1991). Feeding habits determine some ecological aspects (Halffter, 1959) of scarabaeids, like behavior, distribution, morphology and development (Halffter & Matthews, 1966). This paper studies scarabaeine bait preferences in a dry forest patch and its surrounding matrix. 22 species were captured, with 6 new records for the area. The bait with the highest preference rating was omnivore dung, followed by carrion, fungi, cow dung and rotting fruit. The species with the highest abundance was Dichotomius ca. centralis, with 758  individuals and a copro-necrophagous diet. Its dominance was not restricted to the forested area, and significant numbers were found at the pasture matrix. Strict diet species like Deltochilum valgum agropyge were also collected. The dung beetle community observed was mostly generalist (71%), possibly due to the scarcity of excrement, which forces individuals to use other sources of food with a similar nutritional value.10aColombia10adiet10adry forest10apreferences10aresources10aScarabaeinae10aTolima1 aLida, Fernanda, Bustos-Gom1 aToro, Alejandro, Lopera  uhttps://scarabnet.myspecies.info/preferencia-por-cebo-de-los-escarabajos-coprofagos-coleoptera-scarabaeidae-scarabaeinae-de-un-remane02770nas a2200241   4500008004500000245011300045210006900158260000800227300001000235490000600245520190200251653003002153653001502183653002902198653001502227653002602242653003402268653002902302653001702331100002402348700001802372856013802390       2003                        spandsh  00aSobre el comportamiento de alimentacion y nidificacion de Eucraniini (Coleoptera Scarabaeidae: Scarabaeinae)0 aSobre el comportamiento de alimentacion y nidificacion de Eucran  csep  a75-800 v33 aIn this study we report upon the analysis of food relocation and nesting behaviour of some species of the Tribe Eucraniini sensu Zunino, 1985 (Coleoptera: Scarabaei- dae), endemic to the arid and semiarid areas of Argentina, namely Ennearabdus lobocephalus (Ennearabdina), Anomiopsoides heteroclyta, Glyphoderus sterquilinus and Eucranium arachnoides (Eucraniina). Observations, carried out either under field conditions [Salta (Cafayate), La Rioja (Chamical), Mendoza (Ñacuñán), Córdoba (Chancaní), San Luis (Juan Jorba, La Punilla)], or in experimental breeding boxes (Chamical, Chancaní and Río Cuarto) placed in natural conditions, allowed us to obtain data concerning the rhythms of adults activity, locomotion behaviour, food manipulation and nest structure. Ennearabdus lobocephalus, the only flying species, very scarce, exploits different kinds of fresh or semifresh excrement and, seemingly, is nocturnal, hypophagic and paracoprid. The Eucraniina, which are apterous or micropterous, diurnal, heliophi- lous, telephagic and telecoprid, feed excusively on dehydrated dung, generally from rodents and camelids, alternatively from domestic herbivores. Food relocation, mainly horizontal, is performed by the specimen using movements and postures which may change depending on the size of the fragment; however, the food relocation pattern is typical and exclusive of the group. Our observations included also some cases of vertical relocation, just beneath the food source, and even rare events of direct feeding without a previous relocation. Differences both in locomotion behaviour and food handling have been observed. The comparison of the obtained data, altough preliminary and incomplete, leads us to hypothesize the occurrence of a remarkable ethological plasticity in Eucranium arachnoides, higher than that of Anomiopsoides heteroclyta and Glyphoderus sterquilinus.10aAnomiopsoides heteroclyta10aArgentina.10aEnnearabdus lobocephalus10aEucraniini10aEucranium arachnoides10afeeding and nesting behaviour10aGlyphoderus sterquilinus10aScarabaeinae1 aMonteresino, Estela1 aZunino, Mario  uhttps://scarabnet.myspecies.info/sobre-el-comportamiento-de-alimentacion-y-nidificacion-de-eucraniini-coleoptera-scarabaeidae-scaraba