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PHYLOGENETIC RELATIONSHIPS OF THE TROPICAL AMERICAN COLUMBELLID TAXA CONELLA, EURYPYRENE, AND PARAMETARIA (GASTROPODA: NEOGASTROPODA)
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ABSTRACT-Conella, Eurypyrene, and Parametaria are three taxa of columbellid neogastropods native to the Neogene American tropics whose monophyly and relationships have traditionally been confused. The primary objective of this study is to reconstruct the phylogenetic relationships of the tropical American species in these genera, to evaluate their monophyly, and to establish their constituencies. Parsimony-based phylogenetic analysis was used to generate phylogenetic topologies, after which t...
Related newspaper, magazine, and journal articles from HighBeam Research
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Strobilanthes: panicled species from East Asia
Kew Bulletin
; ... S. pubescens are made. A key is provided to facilitate identification. Several species are illustrated for the first time and maps show the distribution of all species discussed in this paper. The inflorescence in Strobilanthes is very variable with flowers ...
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Persistence of Fish Species Associations in Pools of a Small Stream of the Southern Great Plains
Copeia
; Persistence of direct contacts among species has important implications for the potential of taxa to influence each other's traits or evolutionary trajectories. We examined persistence of species (or "ecospecies") associations in Brier Creek, Oklahoma, based on visual surveys on seven dates
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"Yellow Jack and Geopolitics: Environment, Epidemics, and the Struggles for Empire in the American Tropics, 1650-1900"
Environmental History
; McNeill, J. R. "Yellow Jack and Geopolitics: Environment, Epidemics, and the Struggles for Empire in the American Tropics, 1650-1900." In City, Country, Empire: Landscapes in Environmental History, edited by Jeffry M. Diefendorf and Kurk Dorsey. Pittsburgh: University of Pittsburgh Press,
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A WEB PAGE FOR EVERY SPECIES.(Brief Article)
Whole Earth
; ... and allied themselves with it throughout their lives? Some might choose to oversee the critter's Web page. Others might report news about the species--When was it seen last? Where? Is it a subspecies? Is it threatened? How many are there? Has it appeared in ...
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A synopsis and new species of Emilia (Compositae-Senecioneae) in Northeast tropical Africa
Kew Bulletin
; Summary. The NE tropical African species of Emilia are revised and 14 species are recognised. Of these, five species are newly described and illustrated: E. herbacea, E. adamagibaensis, E. negellensis, E. serpentina and E. arvensis. One taxon is kept as Emilia sp. until more material is available.
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A New Species of Amolops (Anura: Ranidae) from Southwest China
Copeia
; A new species of Amolops is described from a mountainous area of southern Yunnan Province, China. The species is unique in having a dark purple dorsum with small light yellow spots. The spots are smaller than the smallest finger disk. Other characters that distinguish this species from other
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MODELING THE OCCURRENCE OF BIRD SPECIES: ARE THE ERRORS PREDICTABLE?(Brief Article)
Ecological Applications
; Abstract. Typical assessments of models where many species occurrences are predicted (e.g., from species-habitat matrices or Gap Analyses) report overall omission and commission errors. Yet species' attributes suggest that we may predict a priori that some species are more likely to be modeled
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Sequence Diversity, Reproductive Isolation and Species Concepts in Saccharomyces
Genetics
; ABSTRACT Using the biological species definition, yeasts of the genus Saccharomyces sensu stricto comprise six species and one natural hybrid. Previous work has shown that reproductive isolation between the species is due primarily to sequence divergence acted upon by the mismatch repair system and
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 "The Economist (US)")
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The number of the beasts. (counting species)
The Economist (US)
; ... an ecology, both in the form of evaporation through soil and transpiration through leaves. Dr Currie thinks the tally between maps is evidence that the more energy that is available for plants, the more types of plants there will be to exploit it. Evapotranspiration ...
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Three new species of Cola (Sterculiaceae) from western Cameroon
Kew Bulletin
; Summary. Three new species of Cola, C. cecidiifolia Cheek, C. metallica Cheek and C. suboppositifolia Cheek, all with simple-leaves and short-petioles, are described from western Cameroon and their conservation status is reviewed. A vegetative key to the 24 species of Cola known from Mt Cameroon,
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