02050nas a2200229   4500008004100000245014800041210006900189260000800258300001200266490000700278520133200285653001701617653001701634653002401651653001501675653002401690100001701714700001901731700001501750700002101765856003401786       2004                        eng d00aMolecular phylogeny and biogeography of the dung beetle genus Temnoplectron Westwood (Scarabaeidae : Scarabaeinae) from Australia's wet tropics0 aMolecular phylogeny and biogeography of the dung beetle genus Te  cMay  a741-7530 v313 aThe landscape of the Australian Wet Tropics can be described as "islands" of montane rainforest Surrounded by warmer or more xeric habitats. Historical glaciation cycles have caused expansion and contraction of these rainforest "islands" leading to consistent patterns of genetic divergence within species of vertebrates. To explore whether this dynamic history has promoted speciation in endemic and diverse groups Of insects, we used a combination of mtDNA sequencing and morphological characters to estimate relationships and the tempo of divergence among Australian representatives of the dung beetle genus Temnoplectron. This phylogenetic hypothesis shares a number of well-supported clades with a previously published phylogenetic hypothesis based on morphological data. though statistical support for several nodes is weak. Sister species relationships well-supported in both tree topologies. and a tree obtained by combining the two data sets. suggest that speciation has mostly been allopatric. We identify a number of speciation barriers, which coincide with phylogeographic breaks found in vertebrate species. Large sequence divergences between species emphasize that speciation events are ancient (pre- Pleistocene). The flightless, rainforest species appear to have speciated rapidly. but also in the distant past.10abiogeography10aDung beetles10amolecular phylogeny10aspeciation10atropical rainforest1 aBell, K., L.1 aYeates, D., K.1 aMoritz, C.1 aMonteith, G., B.  u<Go to ISI>://00022094800002502052nas a2200217   4500008004100000245012100041210006900162300001400231490000700245520125600252653001401508653002201522653001701544653002201561653001801583653001401601653002601615100003501641700002001676856013801696       2004                        eng d00aPhylogenetic relationships of Iberian Aphodiini (Coleoptera: Scarabaeidae) based on morphological and molecular data0 aPhylogenetic relationships of Iberian Aphodiini Coleoptera Scara  a1084-11000 v313 aA phylogeny of Iberian Aphodiini dung beetles was reconstructed based on morphological and molecular data. The data set included a total of 84 variable characters from wing venation, mouthparts, genitalia, and external morphology, as well as mito- chondrial partial cytochrome c oxidase I (COI), complete tRNA-Leu (UUR), and partial cytochrome c oxidase II (COII) gene nucleotide sequences (1210 positions). Phylogenetic trees based on molecular data were relatively more resolved than those based on morphological characters. The Bayesian analysis of combined molecular and morphological data provided resolution not achieved by each data set separately. Ammoecius and Aphodius are the first lineages that branch off from the tree, followed by Acrossus, Nimbus, and Heptaulacus. The remaining studied taxa are recovered in a more derived clade that lacks internal resolution. Re- constructed trees based on molecular data showed relatively short internal nodes that were weakly supported. Such pattern may reflect a rapid radiation at the origin of the tribe Aphodiini, but also saturation of mutational changes. Several tests were conducted to discern between both competing hypotheses, as well as to assess the effect of incomplete taxon sampling. 10aAphodiini10aCombined analysis10aDung beetles10aIberian Peninsula10aPhylogenetics10aRadiation10aSpeciation rate tests1 aCabrero-Sanudo, Francisco-Jose1 aZardoya, Rafael  uhttps://scarabnet.myspecies.info/phylogenetic-relationships-iberian-aphodiini-coleoptera-scarabaeidae-based-morphological-and-molecul