01968nas a2200217   4500008004100000245015400041210006900195260000800264300001400272490000700286520115400293653000901447653001701456653001501473653002701488653001901515653001901534100002401553700003501577856013801612       2006                        eng d00aThe action of post-dispersal beetles (Coleoptera: Scarabaeidae) and ants (Hymenoptera: Formicidae) on scats of Didelphis spp. (Mammalia: Didelphidae)0 aaction of postdispersal beetles Coleoptera Scarabaeidae and ants  cDec  a1197-12030 v543 aA two year study of dung beetles and ants acting on scats of two species of opossum (Didelphis spp.) was carried out. Scats were left in the field in order to detect post-dispersal agents. A portion of each scat (30 %) was examined for seeds in the laboratory. Beetles were recovered from burrows (51 % of 84 faecal samples left in the field) where they either buried scats of opossums or were attracted, together with ants, to pitfalls (N= 10) baited with opossum scats. Dung beetles were the main post-dispersal agents of seeds found in scats of opossums, rolling the scats away or burying then on the site of deposition. They buried faeces at 4 to 15 cm in depth (N= 22 tunnels). The main dung beetles identified (medium to large size) were Eurysternus (28.7 % in pitfalls) and Dichotomius (13.7 %), Coprophanaeus (seen only directly on faeces), besides small-bodied beetles (<10 mm; 57.6 %). The ant Acromirmex sp. transported some seeds from scats. This species was present in 25.5 % of all Formicidae samples (pitfall). These post-dispersal agents contribute to avert scat seed predators such as rodents, and to accelerate seed bank formation.10aants10aDung beetles10amarsupials10apost dispersal insects10aseed dispersal10asmall mammals.1 aCaceres, Nilton, C.1 aMonteiro-Filho, Emygdio, L. A.  uhttps://scarabnet.myspecies.info/action-post-dispersal-beetles-coleoptera-scarabaeidae-and-ants-hymenoptera-formicidae-scats-didelphi00563nas a2200109   4500008004100000245015400041210006900195300001400264490000700278100002900285856013900314       2006                        eng d00aThe action of post-dispersal beetles (Coleoptera: Scarabaeidae) and ants (Hymenoptera: Formicidae) on scats of Didelphis spp. (Mammalia: Didelphidae)0 aaction of postdispersal beetles Coleoptera Scarabaeidae and ants  a1197-12030 v541 a-Filho, Caceres_Monteiro  uhttps://scarabnet.myspecies.info/action-post-dispersal-beetles-coleoptera-scarabaeidae-and-ants-hymenoptera-formicidae-scats-didelph-002451nas a2200277   4500008004100000245016200041210006900203260000800272300001200280490000700292520159600299653001501895653002001910653001701930653003101947653001701978653001801995653001802013653001702031653001802048653001202066653002402078100001602102700002102118856003402139       2000                        eng d00aSpace and time distribution along a succesional gradient of coprofagous coleopterans (Scarabaeinae, Aphodiinae) in a tropical montane forest, Narino Colombia0 aSpace and time distribution along a succesional gradient of copr  cDec  a961-9750 v483 aDung beetles (Scarabaeinae y Aphodiinae) were used to evaluate the effects of human activities in the area surrounding La Planada Natural Reserve, southwestern Colombia. During 1993 we monitored three habitats: primary and secondary forest, and open fields used for cattle grazing. A total of 55 295 trap / hours, evenly distributed among the three habitat types, captured 9 115 individuals (18 species, 11 general. There were differences in species richness between habitats (F-2,F-9 = 29.88; P < 0.001), an in number of individuals (F-2,F-9 = 36.22; P < 0.001). Collecting sites differed within habitats. Cluster analyses show that species composition differs between habitats with and without tree cover. Open areas act as barriers for movements of forest species. Differences between habitats and collecting sites may reflect high environmental heterogeneity, land use history of the sites or the influence of nearby disturbance. Some of the species found in open fields come from lower elevations and are usually associated with intense human disturbance. The proportion of digging and rolling: species is similar in both primary and secondary forest, nocturnal species are more abundant; in open areas rolling species are absent and the number of diurnal species increases. We found no relationship between rainfall and species richness (r(2) = 0.26; P = 0.41), nor between rainfall and number of individuals collected throughout the year (r(2) = 0.07; P = 0.84). For all species the number of individuals collected decreased during dry season and during the onset of the rainy season.10aAphodiinae10aColombian Andes10aconsequences10adiversity and conservation10aDung beetles10afragmentation10aheterogeneity10aScarabaeinae10asoil-moisture10aspatial10asuccession gradient1 aEscobar, F.1 ade Ulloa, P., C.  u<Go to ISI>://00016972090002002461nas a2200277   4500008004100000245016200041210006900203260000800272300001200280490000700292520159600299653001501895653002001910653001701930653003101947653001701978653001801995653001802013653001702031653001802048653001202066653002402078100002602102700002102128856003402149       2000                        eng d00aSpace and time distribution along a succesional gradient of coprofagous coleopterans (Scarabaeinae, Aphodiinae) in a tropical montane forest, Narino Colombia0 aSpace and time distribution along a succesional gradient of copr  cDec  a961-9750 v483 aDung beetles (Scarabaeinae y Aphodiinae) were used to evaluate the effects of human activities in the area surrounding La Planada Natural Reserve, southwestern Colombia. During 1993 we monitored three habitats: primary and secondary forest, and open fields used for cattle grazing. A total of 55 295 trap / hours, evenly distributed among the three habitat types, captured 9 115 individuals (18 species, 11 general. There were differences in species richness between habitats (F-2,F-9 = 29.88; P < 0.001), an in number of individuals (F-2,F-9 = 36.22; P < 0.001). Collecting sites differed within habitats. Cluster analyses show that species composition differs between habitats with and without tree cover. Open areas act as barriers for movements of forest species. Differences between habitats and collecting sites may reflect high environmental heterogeneity, land use history of the sites or the influence of nearby disturbance. Some of the species found in open fields come from lower elevations and are usually associated with intense human disturbance. The proportion of digging and rolling: species is similar in both primary and secondary forest, nocturnal species are more abundant; in open areas rolling species are absent and the number of diurnal species increases. We found no relationship between rainfall and species richness (r(2) = 0.26; P = 0.41), nor between rainfall and number of individuals collected throughout the year (r(2) = 0.07; P = 0.84). For all species the number of individuals collected decreased during dry season and during the onset of the rainy season.10aAphodiinae10aColombian Andes10aconsequences10adiversity and conservation10aDung beetles10afragmentation10aheterogeneity10aScarabaeinae10asoil-moisture10aspatial10asuccession gradient1 aS., Federico, Escobar1 ade Ulloa, P., C.  u<Go to ISI>://00016972090002002259nas a2200217   4500008004100000245010600041210006900147300001000216490000700226520149700233653001901730653001701749653002401766653001801790653001701808653001301825100002701838700002601865700002401891856012601915       2007                        eng d00aCopro-necrophagous beetle (Coleoptera: Scarabaeidae) diversity in an agroecosystem in Yucatan, Mexico0 aCopronecrophagous beetle Coleoptera Scarabaeidae diversity in an  a83-990 v553 aScarabaeinae are sensitive to structural habitat changes caused by disturbance. We compared coprone- crophagous beetle (Scarabaeinae) community structure in three differently managed zones within an agroeco- system of the northern Yucatan Peninsula, Mexico. We placed dung and carrion traps once a month from June 2004 through May 2005. The beetle community included 17 species from the genera Canthon, Canthidium, Deltochilum, Pseudocanthon, Malagoniella, Onthophagus, Phanaeus, Copris, Uroxys, Sisyphus and Ateuchus. The secondary vegetation had a higher beetle diversity than the other two zones. Species richness was highest in the Brosimum alicastrum plantation. The pasture had the lowest species diversity and richness, but exhibited the highest abundance of Scarabaeinae in the dry season. The two zones with extensive tree cover were the most diverse. Roller beetles were dominant over burrower species and small-sized species outnumbered large species. Our data show two important issues: beetle species in the pasture extended their activity to the beginning of the dry season, while abundances dropped in the other, unirrigated zones; and the possibility that the Scarabaeinae living in neotropical forests are opportunistic saprophages and have specialized habits for resources other than dung. The B. alicastrum plantation is beneficial to the entire ranch production system because it functions as a dispersion and development area for stenotopic species limited to tree cover.10aagroecosystems10abiodiversity10aBrosimum alicastrum10afragmentation10aScarabaeinae10aYucatan.1 aNovelo, Enrique, Reyes1 aDelfin-Gonzalez, Hugo1 aMoron, Miguel-Angel  uhttps://scarabnet.myspecies.info/copro-necrophagous-beetle-coleoptera-scarabaeidae-diversity-agroecosystem-yucatan-mexico00602nas a2200145   4500008004100000245012900041210006900170300001200239490000700251100001400258700001600272700001500288700001500303856013800318       1974                        eng d00aAdditional observations on the behaviour of a tropical forest dung beetle, Megathoposoma candezei (Coleoptera: Scarabaeidae)0 aAdditional observations on the behaviour of a tropical forest du  a129-1330 v221 aWille, A.1 aFuentes, G.1 aOrozco, E.1 aSoleis, E.  uhttps://scarabnet.myspecies.info/additional-observations-behaviour-tropical-forest-dung-beetle-megathoposoma-candezei-coleoptera-scar