02155nas a2200253   4500008004100000245011100041210006900152300001200221490000700233520125200240653002701492653002201519653002201541653001701563653002201580653002501602653003201627100002001659700002001679700002001699700003001719700002001749856013201769       2007                        eng d00aHow does the knowledge about the spatial distribution of Iberian dung beetle species accumulate over time?0 aHow does the knowledge about the spatial distribution of Iberian  a772-7800 v133 aDifferent distribution maps can be obtained for the same species if localities where species are present are mapped at different times. We analysed the accumulation of information over time for a group of dung beetle species in the Iberian Peninsula. To do this, we used all available information about the distribution of the group as well as data on selected species to examine if the process of discovery of species distribution has occurred in a climatically or spatially structured fashion. Our results show the existence of a well-defined pattern of temporal growth in distributional information; due to this, the date of capture of each specimen can be explained by the environmental and spatial variables associated to the collection sites. We hypothesize that such temporal biases could be the rule rather than the exception in most distribu- tional data. These biases could affect the weighting of environmental factors that influence species distributions, as well as the accuracy of predictive distribution models. Systematic surveys should be a priority for the description of species geographical ranges in order to make robust predictions about the consequences of habitat and climate change for their persistence and conservation. 10aBiodiversity databases10acollecting biases10adistribution maps10aDung beetles10aIberian Peninsula10aspatial distribution10aspecies distribution ranges1 aLobo, Jorge, M.1 aBaselga, Andres1 aHortal, Joaquin1 aJimenez-Valverde, Alberto1 aGomez, Jose, F.  uhttps://scarabnet.myspecies.info/how-does-knowledge-about-spatial-distribution-iberian-dung-beetle-species-accumulate-over-time02042nas a2200229   4500008004100000020001400041245011500055210006900170300001000239490000700249520123300256653002601489653001701515653002701532653001201559653002801571653001801599100002001617700001901637700001801656856013801674       2007                        eng d  a1578-665X00aConvergences and divergences between two European mountain dung beetle assemblages (Coleoptera, Scarabaeoidea)0 aConvergences and divergences between two European mountain dung   a83-960 v303 aWe analyzed the altitudinal change in dung beetle species richness and the relative proportion of higher taxa, as well as the turnover in the type of distribution and range size of species in two mountain chains located at the two extremes of Europe (Western Rhodopes Mountains and the Iberian Central System). Both mountain ranges showed a clear substitution among higher taxa (Aphodiinae–Geotrupinae vs. Scarabaeidae) and species richness variation with the altitude was similar. We suggest that East European dung beetle assemblages are conditioned by a horizontal colonization process in which mountains had been reached in relatively recent geological time by elements coming from different latitudes. In spite of these convergences, Rhodopes dung beetle assemblages are characterized by a significantly lower proportion of narrowly distributed species and a lower relevance of Aphodiinae species in lowland places. Although these divergences can be partially attributed to the dissimilar sampling effort accomplished in both regions, we suggest that the low number on narrowly distributed species could be due to the different role of these two mountain zones as refuges during glaciar–interglaciar Pleistocene cycles.10aAltitudinal variation10aDung beetles10aIberian Central System10aRefuges10aRhodopes mountain range10aScarabaeoidea1 aLobo, Jorge, M.1 aGueorguiev, B.1 aChehlarov, E.  uhttps://scarabnet.myspecies.info/convergences-and-divergences-between-two-european-mountain-dung-beetle-assemblages-coleoptera-scarab