03032nas a2200337   4500008004100000245012100041210006900162260000800231300001000239490000700249520210400256653001702360653002602377653001502403653001402418653001702432653001702449653001402466653000902480653002602489653001802515653001602533653001002549653001702559653001702576653001702593653001802610653001102628100002102639856003402660       2002                        eng d00aDung beetle diversity in South Africa: influential factors, conservation status, data inadequacies and survey design0 aDung beetle diversity in South Africa influential factors conser  cMar  a53-650 v103 aDung beetles are useful as indicators in conservation and global warming studies owing to their specialized regional and local distribution patterns. However, existing South African data are inadequate for indication at the necessary degree of spatial resolution. To improve the database, Survey methods need to Lie designed according to the spatial and temporal factors that influence dung beetle diversity. Across four major climatic regions, there are seven principal species distribution centres for dung beetles in which activity is influenced primarily by difference, in rainfall seasonality and temperature, Across these regions, generic endemism is largely concentrated around the coastline and in montane areas. The conservation status of endemic genera is discussed. At a local scale, spatial diversity is influenced primarily by soil, vegetation and dung type. Maximum local diversity of dung beetles is observed after rainfall and decreases as surface conditions become warmer and drier. After workshop discussions, a coarse-grained, asymmetrical gradsect survey grid has been designed according to vegetative, climatic and land-usage gradients across South Africa. It is suggested that each survey point across these regional gradients should comprise a quarter-degree square in which local ecological gradients should be surveyed for invertebrates, Baited pitfall trapping is an easy method to provide quantitative data for dung beetles across such environmental gradients. Lining up each catch on a tray provides a relatively quick way to compare the specimens, identify the species present, and provide a quantitative assessment of species abundance. Data collection may be conducted on one or more occasion., to accommodate seasonal and daily variation in species occurrence. This exercise could identify localities suitable for ecotourism reserves representative of the variation in ecotypes across the country, particularly, in coastal, natural grass and wooded regions, where many invertebrate taxa are endangered by habitat fragmentation including some rare dung beetle species.10aassociations10abiodiversity hotspots10aCOLEOPTERA10acommunity10aconsequences10aconservation10adiversity10aDung10ahabitat fragmentation10ahydrophilidae10apopulations10as str10aScarabaeidae10aScarabaeinae10asouth africa10astaphylinidae10asurvey1 aDavis, A., L. V.  u<Go to ISI>://00017624700000601861nas a2200193   4500008004500000245014700045210006900192300001000261490000700271520112900278653001201407653002201419653001401441653002201455653001201477100002201489700001801511856013801529       2002                        spandsh  00aPatrones de diversidad de grupos selectos de insectos en el bosque Chiquitano y pampas del cerrado de Santiago y Tucavaca, Santa Cruz, Bolivia0 aPatrones de diversidad de grupos selectos de insectos en el bosq  a37-460 v113 aAs part of a biological survey of Eastern Santa Cruz, four insect indicator groups (dung beetles, Scarabaeidae; tiger beetles, Cicindelidae; tabanid dipterans, Tabanidae; and diurnal butterf l i e s , Rhopalocera) were assessed at different sites and habitats in the Serranía de Santiago and in the Valle de Tucavaca. Using four trap types, 14 211 insect specimens, belonging to 102 dung beetle species, 18 tiger beetle species, 16 tabanid species, and 83 butterfly species were collected and classified during 21 sampling days. Among the five habitats that were sampled, the semi-deciduous Chiquitano forest and the riverine forest showed higher species richness of dung beetles and butterflies than the Cerrado savannas and other habitats. Some taxa of dung beetles and butterflies were classified as habitat specialists, while fewer ones were classified as generalists. Preliminary data suggest that regional diversity depends more on movement of species between sites than on species richness of different habitats at each site. We discuss the limitations of this study and present recommendations for future surveys. 10aBolivia10aChiquitano forest10adiversity10aindicator species10ainsects1 aGutierrez, Teresa1 aRumiz, Damian  uhttps://scarabnet.myspecies.info/patrones-de-diversidad-de-grupos-selectos-de-insectos-en-el-bosque-chiquitano-y-pampas-del-cerrado-d03191nas a2200349   4500008004100000245018200041210006900223260000800292300001200300490000700312520212700319653000902446653001702455653002502472653001702497653001402514653001702528653002902545653001102574653002802585653002102613653001302634653001002647653002102657653003402678653002602712653001302738100001702751700002002768700001902788856003402807       2002                        eng d00aModelling the species richness distribution of French dung beetles (Coleoptera, Scarabaeidae) and delimiting the predictive capacity of different groups of explanatory variables0 aModelling the species richness distribution of French dung beetl  cJul  a265-2770 v113 aAim To predict French Scarabaeidae dung beetle species richness distribution, and to determine the possible underlying causal factors. Location The entire French territory has been studied by dividing it into 301 grid cells of 0.72 x 0.36 degrees. Method Species richness distribution was predicted using generalized linear models to relate the number of species with spatial, topographic and climate variables in grid squares previously identified as well sampled (n = 66). The predictive function includes the curvilinear relationship between variables, interaction terms and the significant third-degree polynomial terms of latitude and longitude. The final model was validated by a jack-knife procedure. The underlying causal factors were investigated by partial regression analysis, decomposing the variation in species richness among spatial, topographic and climate type variables. Results The final model accounts for 86.2% of total deviance, with a mean jack-knife predictive error of 17.7%. The species richness map obtained highlights the Mediterranean as the region richest in species, and the less well-explored south-western region as also being species-rich. The largest fraction of variability (38%) in the number of species is accounted for by the combined effect of the three groups of explanatory variables. The spatially structured climate component explains 21% of variation, while the pure climate and pure spatial components explain 14% and 11%, respectively. The effect of topography was negligible. Conclusions Delimiting the adequately inventoried areas and elaborating forecasting models using simple environmental variables can rapidly produce an estimate of the species richness distribution. Scarabaeidae species richness distribution seems to be mainly influenced by temperature. Minimum mean temperature is the most influential variable on a local scale, while maximum and mean temperature are the most important spatially structured variables. We suggest that species richness variation is mainly conditioned by the failure of many species to go beyond determined temperature range limits.10aauto10abiodiversity10aconservation biology10adeterminants10adiversity10aDung beetles10aenvironmental components10aFrance10amodelling distributions10anorthern finland10apatterns10ascale10aspecies richness10aspecies richness distribution10avariance partitioning10awildlife1 aLobo, J., M.1 aLumaret, J., P.1 aJay-Robert, P.  u<Go to ISI>://00017664810000100728nas a2200229   4500008004100000245007700041210006900118300001200187490000700199653001000206653001300216653001400229653001600243653001600259653001400275653001600289653001700305100002400322700002600346700002400372856010200396       2002                        eng d00aDiversity and habitat use of dung beetles in a restored Andean landscape0 aDiversity and habitat use of dung beetles in a restored Andean l  a181-1870 v3410aAndes10aColombia10adiversity10adung beetle10ahabitat use10alandscape10arestoration10aScarabaeidae1 aMedina, Claudia, A.1 aS., Federico, Escobar1 aKattan, Gustavo, H.  uhttps://scarabnet.myspecies.info/diversity-and-habitat-use-dung-beetles-restored-andean-landscape01851nas a2200253   4500008004100000245007700041210006900118260000800187300001400195490000700209520117100216653001601387653002401403653001501427653001401442653001101456653001301467653001301480653002101493653001501514653001801529100001601547856003401563       2002                        eng d00aBiogeographic crossroads as priority areas for biodiversity conservation0 aBiogeographic crossroads as priority areas for biodiversity cons  cDec  a1480-14870 v163 aThreats to biodiversity outpace the resources of the conservation community and necessitate careful prioritization of conservation actions. I suggest that targeting the regions where biogeographic assemblages intersect - " biogeographic crossroads" - is a strategy that may achieve significant conservation economy by focusing on areas that satisfy many conservation criteria. I used a combination of data on Scarabaeine beetles in Bolivia and on other taxa and locations from the literature to consider the short- and long-term benefits of conserving these biogeographic crossroads. Biogeographic crossroads are areas of high species richness and beta diversity, often across many taxonomic groups. They are also regions where representativeness can be achieved with relative efficiency. Recent evidence that ecotones may be loci of evolution suggests that evolutionary processes such as speciation and coevolution may be conserved at biogeographic crossroads. Biogeographic crossroads appear to be areas of high conservation priority and opportunity in both the short and long term and require increased attention in the process of setting conservation priorities.10aassemblages10acomplementary areas10acongruence10adiversity10aforest10ahotspots10apatterns10aspecies richness10astrategies10atiger beetles1 aSpector, S.  u<Go to ISI>://000179420100009