01711nas a2200145   4500008004100000245010400041210006900145260001300214300001200227490000700239520114500246100001801391700001801409856013801427       2003                        eng d00aAnts (Hymenoptera: Formicidae) on non-native neotropical ant-acacias (Fabales: Fabaceae) in Florida0 aAnts Hymenoptera Formicidae on nonnative neotropical antacacias   cDecember  a460-4630 v863 a*[One of the best-known symbioses in the Neotropics is the association between ant-acacias & Pseudomyrmex ants that live in the acacia’s hollow thorns.  We surveyed ants on 2 species of ant-acacia, Acacia cornigera (L.) & Acacia sphaerocephala Schlechtendal & Chamisso, growing outside their native range at 5 sites in Florida.  We found 11 ant species: 5 native Florida ants [Brachymyrmex sp. nr. obscurior, Camponotus floridanus (Buckley), Pseudomyrmex cubaensis (Forel), Pseudomyrmex ejectus (Smith), & Pseudomyrmex elongatus (Mayr)], 2 Neotropical exotics [Camponotus sexguttatus (Fabr.) & Pseudomyrmex gracilis (Fabr.)], & 4 Old World exotics [Monomorium floricola (Jerdon), Paratrechina longicornis (Latreille), Pheidole megacephala (Fabr.), & Technomyrmex albipes (Smith)].   Only the 2 Neotropical exotics, Ps. gracilis & C. sexguttatus, inhabited thorns with holes that appeared to have been perforated by ants as entrances.  For Ps. gracilis, & perhaps also for C. sexguttatus, their association with ant-acacias in Florida represents the reconstitution in an exotic locale of a facultative symbiosis evolved in the Neotropics.]1 aWetterer, J K1 aWetterer, A L  uhttps://antkey.myspecies.info/zh-hans/content/ants-hymenoptera-formicidae-non-native-neotropical-ant-acacias-fabales-fabaceae-florida01016nas a2200133   4500008004100000245004600041210004300087300001200130490000700142520061100149100001800760700001800778856008600796       2004                        eng d00aAnts (Hymenoptera: Formicidae) of Bermuda0 aAnts Hymenoptera Formicidae of Bermuda  a212-2210 v873 a*[P. megacephala was first recorded in Bermuda in 1889, & was the most dominant ant species there in the early 20th century.  When L. humile arrived in Bermuda in the 1940's, this new invader quickly overran much territory, driving back P. megacephala.  However, P. megacephala persisted, & ever since, these 2 species have been contesting ever-shifting battlefronts between mutually exclusive territories that together occupy most of the land area of Bermuda.  In addition to the 2 dominant ant species, 18 other ant species are known from Bermuda, though currently all are inconspicuous and/or very rare]1 aWetterer, J K1 aWetterer, A L  uhttps://antkey.myspecies.info/zh-hans/content/ants-hymenoptera-formicidae-bermuda