00695nas a2200157   4500008004100000245015600041210006900197300001200266490000700278100002600285700003400311700001400345700001700359700002300376856013800399       2003                        eng d00aSpatial separation of Afrotropical dung beetle guilds: a trade-off between competitive superiority and energetic constraints (Coleoptera: Scarabaeidae)0 aSpatial separation of Afrotropical dung beetle guilds a tradeoff  a210-2220 v261 aKrell, Frank-Thorsten1 aKrell-Westerwalbesloh, Sylvia1 aWeiss, I.1 aEggleton, P.1 aLinsenmair, Eduard  uhttps://scarabnet.myspecies.info/spatial-separation-afrotropical-dung-beetle-guilds-trade-between-competitive-superiority-and-energet02241nas a2200205   4500008004100000245013200041210006900173260000800242300001400250490000700264520160300271653000601874653001101880653001701891653001001908100003401918700002601952700002301978856003402001       2004                        eng d00aDiel separation of Afrotropical dung beetle guilds - avoiding competition and neglecting resources (Coleoptera : Scarabaeoidea)0 aDiel separation of Afrotropical dung beetle guilds avoiding comp  cSep  a2225-22490 v383 aDung beetle guilds of different competitive level coexist at high abundances in the forest - savanna mosaic of Ivory Coast. A total of 25 875 specimens was recorded from 90 samples of fresh buffalo dung exposed for 4- h periods over the day in the Parc National de la Comoe. Redundancy analyses show different patterns of the guild structure determined by time of day, and positive correlations of guild abundance with temperature. The competitively superior telecoprids ( rollers) have their abundance peak at midday when the high temperatures presumably enable them to perform their energetically costly rolling behaviour at greater speed. The competitively intermediate paracoprids ( tunnellers) and the competitively inferior endocoprids ( dwellers) have their peak around dusk when: ( 1) the superior competitors are not active, and ( 2) they can easily synchronize their flight activity using light intensity changes. During the two peaks of flight activity of the dung beetles, their abundance at the resource is very high, causing obvious competition. On the other hand, the resource is hardly used between 22: 00 h and 10: 00 h. This is probably due to physiological constraints ( high optimum temperature required for the diurnal species and dependence on light intensity patterns as a flight trigger of the nocturnal species, respectively). Shifting flight activity to these periods of low competition does not occur, resulting in a unequal level of competition over the day, thus periods of considerable competition within dung beetle assemblages alternate with vacant temporal refuges.10a'10aCote d10aDung beetles10aIvore1 aKrell-Westerwalbesloh, Sylvia1 aKrell, Frank-Thorsten1 aLinsenmair, Eduard  u<Go to ISI>://000221581700007