01754nas a2200253   4500008004100000245014000041210006900181300001000250520083400260653002901094653001401123653001301137653001601150653001601166653003001182653002601212653003801238653001301276653001801289653001901307653001601326100002001342856013801362       1992                        eng d00aModification in the dung beetles communities on highland grasslands of the Iberian Central System (Spain) along an altitudinal gradient0 aModification in the dung beetles communities on highland grassla  a15-313 aThe effect of a moderated altitudinal variation (500 m) on the dung beetle communities is studied in highland grasslands of the Iberian Central System. The more is the altitude the less is the richness of these communities. This decrease is more important in the warm south slope stations than in the north slope stations, since south slope grasslands are inhabited for a larger number of species with small populations, which are unable to colonize grasslands of the highest altitude. The Scarabaeidae species are the principal component of this latter group. However there is not an altitudinal variation in the abundance. In addition, north-slope dung beetle communities have a lesser number of species, but similar number of individuals and larger biomass. These results are in accordance with a density compensation pattern.10aaltitudinal-distribution10aAnimalia-10aAnimals-10aArthropoda-10aArthropods-10aColeoptera- (Coleoptera-)10aColeoptera-: Insecta-10aEcology- (Environmental-Sciences)10aInsects-10aInvertebrata-10aInvertebrates-10aPhysiology-1 aLobo, Jorge, M.  uhttps://scarabnet.myspecies.info/modification-dung-beetles-communities-highland-grasslands-iberian-central-system-spain-along-altitud02114nas a2200301   4500008004100000245011000041210006900151300001200220490000800232520111600240653001401356653001301370653001601383653001601399653001801415653002501433653002601458653003101484653001301515653002301528653001801551653001901569653003601588653002201624653001201646100002001658856013401678       2000                        eng d00aSpecies diversity and composition of dung beetle (Coleoptera: Scarabaeoidea) assemblages in North America0 aSpecies diversity and composition of dung beetle Coleoptera Scar  a307-3210 v1323 aData from 18 studies carried out on dung beetles from temperate North America (north of 25degree latitude) are compared to verify the existence of some geographical pattern in the variation of three parameters: (1) species number, (2) taxonomic composition, and (3) number of introduced species. Southern localities are characterized by a larger number of species and a significantly higher number of scarabaeine species than northern localities (only southern communities located inside the Chihuahuan desert do not conform to this pattern). To explain the latitudinal pattern in faunistic composition and number of species, historical factors are postulated. Foreign species of the tribe Aphodiini seem to be more frequent in the northern localities where more aphodiine native species occur. In contrast, foreign species of the subfamily Scarabaeinae are not more frequent in the southern localities with a greater number of native scarabaeine species. These results are consistent with the hypothesis that the more diverse assemblages of native dung beetle are more resistant to invasion by foreign species.10aAnimalia-10aAnimals-10aArthropoda-10aArthropods-10aBiodiversity-10abiological-invasions10aColeoptera-: Insecta-10adung-beetles (Coleoptera-)10aInsects-10aintroduced-species10aInvertebrata-10aInvertebrates-10aNorth-America (Nearctic-region)10aspecies-diversity10ataxonom1 aLobo, Jorge, M.  uhttps://scarabnet.myspecies.info/species-diversity-and-composition-dung-beetle-coleoptera-scarabaeoidea-assemblages-north-america02184nas a2200277   4500008004100000245011000041210006900151300001000220490000700230520122600237653001401463653001301477653001601490653001601506653002601522653003101548653001301579653001801592653001901610653001501629653002301644653005201667653004001719100002001759856012701779       2001                        eng d00aDecline of roller dung beetle (Scarabaeinae) populations in the Iberian peninsula during the 20th century0 aDecline of roller dung beetle Scarabaeinae populations in the Ib  a43-500 v973 aA historical compilation of data on roller dung beetle occurrence in the Iberian peninsula was examined for temporal changes between the first and second half of the 20th century. Analysis of changes in the relative frequency of database records, individuals and 10-km UTM cells where the beetles occurred showed a decline in the occurrence of nine of the eleven species. A comparison of latitudinal and longitudinal mid-points of the 10-km UTM cells where each species occurs indicated that the range of most roller dung beetles in the Iberian peninsula has also contracted. Before 1950 a significant, positive and curvilinear relationship was found between the number of roller dung beetles and the area of coastal environments (sea, dunes, beaches and marshes); while in the second half of the 20th century the number of "roller" species is positively correlated with artificial pastureland and scrub areas. It is suggested that urban development of the coastal zones for tourism since 1950 has probably contributed greatly to the disappearance of many roller populations. It is recommended that some of the more affected species of roller dung beetles should be considered for inclusion among protected invertebrates.10aAnimalia-10aAnimals-10aArthropoda-10aArthropods-10aColeoptera-: Insecta-10aIberian-Peninsula (Europe-10aInsects-10aInvertebrata-10aInvertebrates-10aPalearctic10aPopulation-Studies10aroller-dung-beetle (Coleoptera-): Scarabaeinae-10aWildlife-Management (Conservation-)1 aLobo, Jorge, M.  uhttps://scarabnet.myspecies.info/decline-roller-dung-beetle-scarabaeinae-populations-iberian-peninsula-during-20th-century02879nas a2200301   4500008004100000245015200041210006900193300001100262490000600273520181600279653001402095653001302109653003002122653001602152653001602168653001802184653002602202653003002228653003102258653001302289653001802302653001902320653002302339653003202362100002002394700002502414856013802439       1999                        eng d00aAn intercontinental comparison of dung beetle diversity between two mediterranean-climatic regions: Local versus regional and historical influences0 aintercontinental comparison of dung beetle diversity between two  a91-1030 v53 aThe species richness of biological communities is influenced by both local ecological, regional ecological, and historical factors. The relative importance of these factors may be deduced by comparison between communities in climatically and ecologically equivalent, but geographically and historically separate regions of the world. This claim is based on the hypothesis that community processes driven by similar local ecological factors lead to convergence in species richness whereas those driven by differing regional or historical factors lead to divergence. An intercontinental comparison between the winter rainfall regions of South Africa and the Iberian Peninsula showed that overall species richness of dung beetles was dissimilar at local, subregional and regional scales in Scarabaeidae s. str. but similar at all scales in Aphodiinae. Removal of species widespread in the summer rainfall region of Africa or the temperate region of Europe (regional component) resulted in dissimilarit y in species richness of mediterranean endemics at all scales in both dung beetle taxa. However, the lines joining each set of species richness values were parallel which may indicate similarities in processes between different mediterranean climatic regions despite slight differences in latitudinal range. The dominant pattern of dissimilarity or non-convergence may be related primarily to intercontinental differences in regional biogeographical and evolutionary history (faunal dispersal, glaciation effects in relation to geographical barriers to dispersal, speciation history, long-term disturbance history). The limited pattern of similarity or convergence in overall species richness of Aphodiinae may be a chance result or primarily related to intercontinental similarities in local ecological factors.10aAnimalia-10aAnimals-10aAphodiinae- (Coleoptera-)10aArthropoda-10aArthropods-10aBiodiversity-10aColeoptera-: Insecta-10adung-beetle (Coleoptera-)10aIberian-Peninsula (Europe-10aInsects-10aInvertebrata-10aInvertebrates-10aPopulation-Studies10aScarabaeidae- (Coleoptera-)1 aLobo, Jorge, M.1 aDavis, Adrian, L. V.  uhttps://scarabnet.myspecies.info/intercontinental-comparison-dung-beetle-diversity-between-two-mediterranean-climatic-regions-local-v02498nas a2200277   4500008004100000245016200041210006900203300001200272490000600284520145200290653000601742653001401748653001301762653001601775653001401791653004201805653002601847653005301873653003801926653001801964653003701982653001602019100002002035700002702055856013802082       1994                        eng d00aLocal distribution and coexistence of Digitonthophagus gazella (Fabricius, 1787) and Onthophagus batesi Howden and Cartwright 1963 (Coleoptera: Scarabaeidae)0 aLocal distribution and coexistence of Digitonthophagus gazella F  a117-1270 v83 aWith data coming from two Mexican Neotropical localities, an analysis of the main niche dimensions of two potential competitors was carried out: an introduced Indoafrican species (D. gazella) and a native one (O. batesi). Both species show similar daily activity. They coexist in grasslands bordering on tropical forest opened for cattle activity. Results show spatial segregation at local level: both species inhabit open areas but O. batesi less so. This latter species also inhabits the forest, mainly at the edge zones. The possible causes of this spatial segregation along the environmental gradient could be related with a different detection capacity of the two species. Since their flying activity occurs at dusk and dawn, we suggest that the detection of humidity has an important role in the observed segregation. We propose that the adults colonize dung pats located in places with suitable environmental conditions that secure progeny survivorship. However. the possibility of competition between these species, cannot be ruled out. From a historic-evolutive perspective the coexistence of both species is recent. It is necessary to determine the spatial behavior of either species where the other one is missing. What happens with possible interactions in overlapping zones (edge-grassland) and studies about immigration-emigration rates from dung pats in these zones, where the two species coexist, are questions for future research.10aa10aAnimalia-10aAnimals-10aArthropoda-10aBehavior-10aClimatology- (Environmental-Sciences)10aColeoptera-: Insecta-10aDigitonthophagus-gazella (Organisms-Unspecified)10aEcology- (Environmental-Sciences)10aInvertebrata-10aOnthophagus-batesi (Coleoptera-)10aPhysiology-1 aLobo, Jorge, M.1 aMontes, De, Oca Enriqu  uhttps://scarabnet.myspecies.info/local-distribution-and-coexistence-digitonthophagus-gazella-fabricius-1787-and-onthophagus-batesi-ho02273nas a2200313   4500008004100000245016400041210006900205300001000274490000700284520116400291653001401455653001301469653003001482653001601512653001601528653001801544653002601562653003301588653004601621653001201667653001301679653001801692653001901710653002401729100002001753700002201773700002601795856013801821       1997                        eng d00aDiversity and spatial turnover of dung beetle (Coleoptera: Scarabaeoidae) communities in a protected area of South Europe (Donana National Park, Huelva, Spain)0 aDiversity and spatial turnover of dung beetle Coleoptera Scaraba  a71-880 v113 aDiversity and spatial turnover of the spring dung beetle community of Donana National Park (Huelva, Spain), one of the most important wildlife reserves in the Mediterranean area, were examined. The entire dung beetle community is estimated to comprise around 68 species. Coastal dunes and marsh proved to be the most singular habitats within Donana Reserve. Response of Scarabaeidae and Aphodiidae to habitat heterogeneity was different. Scarabaeidae fauna was highly homogeneous throughout the habitats whereas Aphodiidae showed higher rates of species turnover and some singular local communities, thus contributing to a greater extent to the regional diversity. Scarabaeidae family presents more ubiquitous species and lower values of beta diversity, so that its local and regional diversity converge. It is suggested that different adaptive strategies regard in resource partitioning (Scarabaeidae: tunnellers and ball-rollers; Aphodiidae: dwellers) can account for these differences. Although Donana National Park is home to a richer wild mammal fauna and non-human altered habitats, its dung beetle diversity is similar to that of other Spanish regions.10aAnimalia-10aAnimals-10aAphodiidae- (Coleoptera-)10aArthropoda-10aArthropods-10aBiodiversity-10aColeoptera-: Insecta-10aDonana-National-Park (Spain-10adung-beetle (Coleoptera-): Scarabaeoidea-10aEurope-10aInsects-10aInvertebrata-10aInvertebrates-10aPalearctic-region):1 aLobo, Jorge, M.1 aSanmartin, Isabel1 aMartin, Piera, Fermin  uhttps://scarabnet.myspecies.info/diversity-and-spatial-turnover-dung-beetle-coleoptera-scarabaeoidae-communities-protected-area-south