@article {691071, title = {From agronomics to international relations: Building an online encyclopedia of life in the Dominican Republic}, journal = {ReVista : Harvard review of Latin America.}, number = {Fall 2004 / Winter 2005}, year = {2005}, pages = {6-9}, publisher = {David Rockefeller Center for Latin American Studies, Harvard University}, address = {Cambridge, MA}, keywords = {Latin America -- Economic conditions -- 1982- -- Periodicals., Latin America -- Social conditions -- 1982- -- Periodicals.}, isbn = {1541-1443}, author = {Brian D. Farrell}, editor = {DRCLAS} } @governmentreport {691066, title = {Historical biogeography of longhorn cactus beetles: the influence of Pleistocene climate changes on American desert communities}, year = {2005}, pages = {135-139}, publisher = {U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station}, address = {Fort Collins, CO}, isbn = {Proc. RMRS-P-36}, author = {Smith, Christopher I. and Brian D. Farrell} } @article {591046, title = {Ecological and evolutionary diversification of the seed beetle genus Stator (Coleoptera : Chrysomelidae : Bruchinae)}, journal = {Evolution}, volume = {59}, number = {6}, year = {2005}, note = {

939MQTimes Cited:44Cited References Count:116

}, month = {Jun}, pages = {1315-1333}, abstract = {

Ehrlich and Raven{\textquoteright}s (1964) hypothesis on coevolution has stimulated numerous phylogenetic studies that focus on the effects of plant defensive chemistry as the main ecological axis of phytophagous insect diversification. However, other ecological features affect host use and diet breadth and they may have very different consequences for insect evolution. In this paper, we present a phylogenetic study based on DNA sequences from mitochondrial and protein-coding genes of species in the seed beetle genus Stator, which collectively show considerable interspecific variation in host affiliation, diet breadth, and the dispersal stage of the seeds that they attack. We used comparative analyses to examine transitions in these three axes of resource use. We argue that these analyses show that diet breadth evolution is dependent upon colonizing novel hosts that are closely or distantly related to the ancestral host, and that oviposition substrate affects the evolution of host-plant affiliation, the evolution of dietary specialization, and the degree to which host plants are shared between species. The results of this study show that diversification is structured by interactions between different selective pressures and along multiple ecological axes.

}, keywords = {acacia-farnesiana, bridwell coleoptera, coevolution, cytochrome oxidase 1, cytochrome-oxidase-i, dead-end, elongation factor 1-alpha, host records, insect plant interactions, insect-plant interaction, leaf beetles, molecular systematics, oviposition behavior, phytophagous insects, southwestern united-states, specialization}, isbn = {0014-3820}, author = {Morse, Geoff E. and Brian D. Farrell} } @article {591051, title = {Interspecific phylogeography of the Stator limbatus species complex: The geographic context of speciation and specialization}, journal = {Molecular Phylogenetics and Evolution}, volume = {36}, number = {2}, year = {2005}, note = {

942EOTimes Cited:24Cited References Count:87

}, month = {Aug}, pages = {201-213}, abstract = {

Diversification in phytophagous insects is often attributed to a propensity toward specialization and to a tendency for speciation to be associated with host-shifts. Phylogenetic analysis revealed a sister relationship between the generalist Stator limbatus and the specialist host-shifted Stator beali, providing a system to examine the genealogical and geographic origins of the main processes involved in this diversification: host-shifts, specialization, and reproductive isolation. We examine the interspecific phylogeographic relationships between these species using mitochondrial DNA sequence data. S. beali is derived within S. limbatus, rendering the latter paraphyletic and suggesting a budding process of speciation. The inherent polarity in this genealogical pattern indicates that the specialist habit, clumping oviposition behavior, and distinct genitalia of S. beali are all derived from the ancestral S. limbatus. The phylogeography of S. limbatus also shows strong geographic structure with divergences corresponding to known biogeographic boundaries, indicating that this evolutionary signal has not been erased by the vagaries of history. However, the derivation of S. beali and the evolution of reproductive isolation between the two species does not correspond to these known biogeographic boundaries, as S. beali and its sister clade of S. limbatus are restricted to the same geographic province. The geographic proximity of diversification combined with a divergence time estimated at the beginning of the Pleistocene indicates that speciation likely occurred very rapidly, although further genetic and ecological work is necessary to examine the mode of speciation. This study provides the historical context for ongoing evolutionary, ecological, and quantitative genetic research on the divergence in diet breadth between these species. (c) 2005 Elsevier Inc. All rights reserved.

}, keywords = {bruchinae, cytochrome oxidase 1, cytochrome-oxidase-i, dead-end, grasshoppers genus melanoplus, host records, leaf beetles, miocene communities, mitochondrial DNA, mitochondrial-DNA, molecular systematics, neotropical paleobotany, paraphyly, phylogeography, phytophagous insects, seed-feeding beetle, specialization, Speciation, stator}, isbn = {1055-7903}, author = {Morse, Geoff E. and Brian D. Farrell} } @article {591056, title = {Molecular phylogenetics and evolution of host plant use in the Neotropical rolled leaf {\textquoteright}hispine{\textquoteright} beetle genus Cephaloleia (Chevrolat) (Chrysomelidae : Cassidinae)}, journal = {Molecular Phylogenetics and Evolution}, volume = {37}, number = {1}, year = {2005}, note = {

973FDTimes Cited:28Cited References Count:66

}, month = {Oct}, pages = {117-131}, abstract = {

Here, we report the results of a species level phylogenetic study of Cephaloleia beetles designed to clarify relationships and patterns of host plant taxon and tissue use among species. Our study is based on up to 2088 bp of mtDNA sequence data. Maximum parsimony, maximum likelihood, and Bayesian methods of phylogenetic inference consistently recover a monophyletic Cephaloleia outside of a basal clade of primarily palm feeding species (the {\textquoteright}Arecaceae-feeding clade{\textquoteright}), and C irregularis. In all three analyses, the {\textquoteright}Arecaceae-feeding clade{\textquoteright} includes Cephaloleia spp. with unusual morphological features, and a few species currently placed in other cassidine genera and tribes. All three analyses also recover a clade that includes all Zingiberales feeding Cephaloleia and most Cephaloleia species (the {\textquoteright}Zingiberales-feeding clade{\textquoteright}). Two notable clades are found within the {\textquoteright}Zingiberales-feeding clade.{\textquoteright} One is comprised of beetles that normally feed only on the young rolled leaves of plants in the families Heliconiaceae and Marantaceae (the {\textquoteright}Heliconiaceae \& Marantaceae-feeding clade{\textquoteright}). The other is comprised of relative host tissue generalist, primarily Zingiberales feeding species (the {\textquoteright}generalist-feeding clade{\textquoteright}). A few species in the {\textquoteright}generalist-feeding clade{\textquoteright} utilize Cyperaceae or Poaceae as hosts. Overall, relatively basal Cephaloleia (e.g., the "Arecaceae clade{\textquoteright}) feed on relatively basal monocots (e.g., Cyclanthaceae and Arecaceae), and relatively derived Cephaloleia (e.g., the {\textquoteright}Zingiberales-feeding clade{\textquoteright}) feed on relatively derived monocots (mostly in the order Zingiberales). Zingiberales feeding and specialization on young rolled Zingiberales leaves have each apparently evolved just once in Cephaloleia. (c) 2005 Elsevier Inc. All rights reserved.

}, keywords = {accuracy, bark beetles, cassidinae, cephaloleia, characters, chrysomelidae, heliconia, hispinae, incomplete taxa, incongruence, length difference test, missing data, mitochondrial-DNA, mtdna, specialization, zingiberales}, isbn = {1055-7903}, author = {McKenna, Duane D. and Brian D. Farrell} } @article {591041, title = {Phylogeography of the longhorn cactus beetle Moneilema appressum LeConte (Coleoptera : Cerambycidae): was the differentiation of the Madrean sky islands driven by Pleistocene climate changes?}, journal = {Molecular Ecology}, volume = {14}, number = {10}, year = {2005}, note = {

955JUTimes Cited:59Cited References Count:67

}, month = {Sep}, pages = {3049-3065}, abstract = {

Although it has been suggested that Pleistocene climate changes drove population differentiation and speciation in many groups of organisms, population genetic evidence in support of this scenario has been ambiguous, and it has often been difficult to distinguish putative vicariance from simple isolation by distance. The sky island communities of the American Southwest present an ideal system in which to compare late Pleistocene range fragmentations documented by palaeoenvironmental studies with population genetic data from organisms within these communities. In order to elucidate the impact of Pleistocene climate fluctuations on these environments, biogeographic patterns in the flightless longhorn cactus beetle, Moneilema appressum were examined using mitochondrial DNA sequence data. Gene tree relationships between haplotypes were inferred using parsimony, maximum-likelihood, and Bayesian analysis. Nested clade analysis, Mantel tests, and coalescent modelling were employed to examine alternative biogeographic scenarios, and to test the hypothesis that Pleistocene climate changes drove population differentiation in this species. The program MDIV was used to estimate migration and divergence times between populations, and to measure the statistical support for isolation over ongoing migration. These analyses showed significant geographic structure in genetic relationships, and implicated topography as a key determinant of isolation. However, although the coalescent analyses suggested that a history of past habitat fragmentation underlies the observed geographic patterns, the nested clade analysis indicated that the pattern was consistent with isolation by distance. Estimated divergence times indicated that range fragmentation in M. appressum is considerably older than the end of the most recent glacial, but coincided with earlier interglacial warming events and with documented range expansions in other, desert-dwelling species of Moneilema.

}, keywords = {coalescent analysis, cytochrome-oxidase-i, Gene Flow, hyla-arenicolor cope, ice ages, insect fossil evidence, mdiv, moneilema, montane grasshoppers, nested clade analysis, paleobotanical record, partial mantel tests, phenotypic associations, pleistocene climate change, sky islands, western north-america}, isbn = {0962-1083}, author = {Smith, Christopher I. and Brian D. Farrell} } @article {591036, title = {Range expansions in the flightless longhorn cactus beetles, Moneilema gigas and Moneilema armatum, in response to Pleistocene climate changes}, journal = {Molecular Ecology}, volume = {14}, number = {4}, year = {2005}, note = {

907MJTimes Cited:52Cited References Count:50

}, month = {Apr}, pages = {1025-1044}, abstract = {

Pollen cores and plant and animal fossils suggest that global climate changes at the end of the last glacial period caused range expansions in organisms indigenous to the North American desert regions, but this suggestion has rarely been investigated from a population genetic perspective. In order to investigate the impact of Pleistocene climate changes and glacial/interglacial cycling on the distribution and population structure of animals in North American desert communities, biogeographical patterns in the flightless, warm-desert cactus beetles, Moneilema gigas and Moneilema armatum, were examined using mitochondrial DNA (mtDNA) sequence data from the cytochrome oxidase I (COI) gene. Gene tree relationships between haplotypes were inferred using parsimony, maximum-likelihood, and Bayesian analysis. Nested clade analysis and coalescent modelling using the programs MDIV and FLUCTUATE were used to identify demographically independent populations, and to test the hypothesis that Pleistocene climate changes caused recent range expansions in these species. A sign test was used to evaluate the probability of observing concerted population growth across multiple, independent populations. The phylogeographical and nested clade analyses reveal a history of northward expansion in both of these species, as well as a history of past range fragmentation, followed by expansion from refugia. The coalescent analyses provide highly significant evidence for independent range expansions from multiple refugia, but also identify biogeographical patterns that predate the most recent glacial period. The results indicate that widespread desert environments are more ancient than has been suggested in the past.

}, keywords = {cerambycidae, chihuahuan desert, chihuahuan-desert, cladistic-analysis, coalescent analysis, cytochrome-oxidase-i, eremicus species group, fluctuate, insect fossil evidence, late quaternary, mdiv, nested clade analysis, north-america, paleobotanical record, phenotypic associations, phylogeography, population-growth, sonoran desert}, isbn = {0962-1083}, author = {Smith, Christopher I. and Brian D. Farrell} }