02424nas a2200181   4500008004100000022002500041245015600066210006900222260000800291300001400299490000700313520162400320100002501944700002401969700002401993700003002017856019502047       2013                        eng d  a0046-225X, 1938-293600aPotential geographic distributions and successful invasions of parthenogenetic broad-nosed weevils (Coleoptera: Curculionidae) native to South America.0 aPotential geographic distributions and successful invasions of p  caug  a677–6870 v423 aTen species of parthenogenetic broad-nosed weevils (Coleoptera: Curculionidae: Entiminae) native to Argentina, southern Brazil, and Uruguay were selected for niche modeling analysis based on climatic data and altitude, to evaluate their potential range expansion inside and outside South America. The selected species belong to five genera of the tribe Naupactini affecting economically important crops. Until present, five of the 10 species analyzed here have invaded prairies and steppes of countries outside South America (Australia, New Zealand, Mexico, United States, and South Africa) : Aramigus tessellatus (Say), Atrichonotussordidus (Hustache), Atrichonotus taeniatulus (Berg), Naupactus leucoloma Boheman, and Naupactus peregrinus (Buchanan). Our niche modeling analyses performed with MAXENT demonstrated that these areas would be also suitable for Aramigus conirostris (Hustache), Eurymetopus fallax (Boheman), Pantomorus auripes Hustache, Pantomorus ruizi (Brèthes), and Pantomorus viridisquamosus (Boheman), consequently, they also have the potential to invade areas outside their native ranges, mainly in southeastern United States, some European countries (e.g., Portugal, France, and southern England), South Africa, New Zealand, and southeastern Australia. All the studied species share similar environmental requirements, the most important variables being the Mean Temperature of Driest Quarter, the Annual Mean Temperature and Isothermality. Long distance dispersal through commercial trade, and parthenogenetic reproduction would increase the threat of these weevils to crop production worldwide.1 aLanteri, Analía, A.1 aGuzmán, Noelia, V.1 adel Río, Guadalupe1 aConfalonieri, Viviana, A.  uhttps://bioone.org/journals/Environmental-Entomology/volume-42/issue-4/EN12297/Potential-Geographic-Distributions-and-Successful-Invasions-of-Parthenogenetic-Broad-Nosed/10.1603/EN12297.full02057nas a2200169   4500008004100000022001400041245008300055210006900138260000800207300001600215490000700231520152400238100002401762700002501786700003001811856004601841       2012                        eng d  a1573-847700aColonization ability of two invasive weevils with different reproductive modes0 aColonization ability of two invasive weevils with different repr  cnov  a1371–13900 v263 aThe flightless weevils Naupactus leucoloma and Naupactu xanthographus (Coleoptera: Curculionidae: Naupactini), which are native to and partially co-distributed in South America, apparently have asexual and bisexual reproductive modes, respectively. We used two different molecular markers to elucidate the effects of these reproductive modes on the colonization ability and genetic variability of both species. First, we investigated the occurrence of clonal reproduction in the putative parthenogenetic species (i.e. significant bias in sex ratio) and second, whether parthenogenesis was associated with higher colonization ability and low levels of genetic variability in marginal environments compared with those of the bisexual species. We assessed the central and marginal areas of distribution of these species with ecological niche modeling that includes environmental variables and with landscape interpolation of molecular variability. Our results support the idea that parthenogenetic species are more successful than bisexual ones in colonizing new environments. N. leucoloma is most probably apomictic, and would have recently experienced significant population growth concomitant with an important geographic range expansion to distant areas with moderately suitable environmental conditions. On the other hand, the populations of the bisexual species, N. xanthographus, seem to have maintained fairly constant sizes, expanding its geographic distribution to locations close to the proposed ancestral area.1 aGuzmán, Noelia, V.1 aLanteri, Analía, A.1 aConfalonieri, Viviana, A.  uhttps://doi.org/10.1007/s10682-012-9564-4