01799nas a2200205   4500008004100000245011900041210006900160300001200229490000700241520116900248653001701417653001301434653002401447653001601471653001201487653002001499100001501519700001601534856004301550       1996                        eng d00aBiogeography of milkweed butterflies (Nymphalidae: Danaidae) and mimetic patterns on tropical Pacific archipelagos0 aBiogeography of milkweed butterflies Nymphalidae Danaidae and mi  a317-3260 v573 aDistributions of danaine butterfly species and associated mimetic patterns were compared among fifteen archipelagos of the tropical Pacific Ocean, and within five major archipelagos (the Bismarcks, Fiji, East and West Solomon Islands, and Vanuatu). Using both simple and stepwise linear regression analysis, variation in the total number of danaine species and number of mimetic patterns was assessed with respect to island size, isolation and elevation. Relative to interarchipelago distributions, the distribution of danaine species and number of mimetic patterns on islands within archipelagos exhibited less dependence upon interisland distance and island area. Geographical features influencing the number of mimetic patterns were similar to those of danaines as a whole. Analysis of residuals from stepwise linear regression suggested that factors influencing danaine distributions were different from those for nondanaine butterflies. This result is consistent with the hypothesis of enhancement of danaine species establishment through Mullerian mimicry, although other factors such as host plant availability and similar habitat use may also be important.10aBIODIVERSITY10aDanaidae10aisland biogeography10aLEPIDOPTERA10amimicry10aPacific Insects1 aDudley, R.1 aAdler, G.H.  uhttps://pacleps.myspecies.info/node/4001741nas a2200229   4500008004100000245006800041210006800109300001200177490000700189520112100196653001701317653001701334653001001351653001201361653001401373653001601387653002001403653001501423100001601438700001501454856004201469       1994                        eng d00aButterfly biogeography and endemism on tropical Pacific Islands0 aButterfly biogeography and endemism on tropical Pacific Islands  a151-1620 v513 aButterfly distributions on 26 tropical Pacific archipelagos were analysed to examine the effects of geography on diversity and endemism. The total butterfly fauna for each archipelago was divided into continental (found also on continental areas), Pacific (found within more than one archipelago but not ourside of the study area), and endemic species (restricted to a single archipelago). Numbers and proportions of each species were related to eight geographic variable by stepwise multiple linear regression analysis. Total  area of an archipelago and distance from other land masses were important predictors of the number of species within an archipelago. Proportions of butterfly species in each category were related differently to the geographic variables, with endemism being promoted by the number of large islands within an archipelago. Relative to birds, butterflies have been less successful in colonizing remore archipelagos and have much lower levels of endemism. Even if colonization is successful, butterflies speciation may be constrained by the mechanics of coevolution with available host plants.10aBIODIVERSITY10aBIOGEOGRAPHY10aBIRDS10aENDEMIC10aEVOLUTION10aLEPIDOPTERA10aPacific Insects10aSPECIATION1 aAdler, G.H.1 aDudley, R.  uhttps://pacleps.myspecies.info/node/2