Molecular systematics of Malagasy poison frogs in the Mantella betsileo and  M. laevigata species groups

Zootaxa ◽  
2007 ◽  
Vol 1501 (1) ◽  
pp. 31-44 ◽  
Author(s):  
FALITIANA C.E. RABEMANANJARA ◽  
ANGELICA CROTTINI ◽  
YLENIA CHIARI ◽  
FRANCO ANDREONE ◽  
FRANK GLAW ◽  
...  

Malagasy poison frogs of the genus Mantella with its 16 species are currently sub-divided into 5 major groups. Of these, the Mantella betsileo group is traditionally understood as containing four species, Mantella betsileo, M. expectata, M. viridis and M. manery, while the M. laevigata group is considered to be monospecific. A phylogenetic analysis of samples from multiple localities of all species in these two groups, based on sequences of the mitochondrial cytochrome b gene, shows the existence of several well-distinct clades in what is currently considered to be Mantella betsileo: (1) central-western populations from Kirindy, Isalo, and near Antsirabe close to the Betsileo region, to which the name M. betsileo is to be applied, (2) populations of the north-east and north-west, which are closely related to M. viridis and to which the name M. ebenaui is to be applied, and (3) a clade from southernmost Madagascar and from the Tsingy de Bemaraha, which is sister to M. expectata and furthermore includes important intra-clade variation, therefore probably representing one or two undescribed species. Our data also support a large genetic distance of M. manery to all other species and its probable sister-group relationship to the sympatric M. laevigata; M. manery is consequently transferred from the M. betsileo group to the M. laevigata group.

2011 ◽  
Vol 25 (4) ◽  
pp. 334 ◽  
Author(s):  
Joel Ledford ◽  
Pierre Paquin ◽  
James Cokendolpher ◽  
Josh Campbell ◽  
Charles Griswold

A phylogenetic analysis of the spider genus Neoleptoneta Brignoli, 1972 is presented based on molecular sequence variation from three genes (mitochondrial cytochrome c oxidase subunit I, nuclear histone H3 and nuclear 28S rDNA) and including exemplars for all North American leptonetid genera except the ecribellate archoleptonetine Darkoneta. Analysis of concatenated data and independent genes using Bayesian, maximum likelihood and parsimony methods failed to recover Neoleptoneta as monophyletic. The genera Archoleptoneta, Appaleptoneta and Calileptoneta are monophyletic and a sister group relationship is supported between Appaleptoneta and Calileptoneta. Morphological data based on a survey of leptonetid genera using scanning electron and compound light microscopy are discussed and traced on the molecular phylogeny. Images for each North American leptonetine genus are provided, including comparison with Asian and European outgroups. Images of the incertae sedis species Leptoneta brunnea Gertsch, 1974 and Leptoneta sandra Gertsch, 1974 are provided and their generic placement is re-evaluated. Ancestral state reconstruction is used to assess patterns of cave evolution and shows that most species are descended from troglophilic ancestors and that troglobites have evolved at least nine times independently within the North American Leptonetidae. Neoleptoneta is relimited to include seven species restricted to central Mexico including N. bonita (Gertsch, 1974), N. capilla (Gertsch, 1971), N. delicata (Gertsch, 1971), N. limpida (Gertsch, 1974), N. rainesi (Gertsch, 1971) and N. reclusa (Gertsch, 1971) and to include Leptoneta brunnea, giving the new combination N. brunnea (Gertsch, 1974). The remaining species described in Neoleptoneta are placed in three new genera: (1) Chisoneta, gen. nov. from south-western Texas and Nuevo Leon, Mexico, including the four species C. chisosea (Gertsch, 1974), C. isolata (Gertsch, 1971), C. modica (Gertsch, 1974) and C. pecki (Gertsch, 1971), new combinations; (2) Ozarkia, gen. nov. from Arizona and New Mexico north-east to Arkansas, Alabama and Georgia, including the nine species O. alabama (Gertsch, 1974), O. apachea (Gertsch, 1974), O. archeri (Gertsch, 1974), O. arkansa (Gertsch, 1974), O. blanda (Gertsch, 1974), O. georgia (Gertsch, 1974), O. ivei (Gertsch, 1974), O. novaegalleciae (Brignoli, 1979) and O. serena (Gertsch, 1974), new combinations; and (3) Tayshaneta, gen. nov. from Texas south to Coahuila, Mexico, with the eleven species T. anopica (Gertsch, 1974), T. bullis (Cokendolpher, 2004), T. coeca (Chamberlin & Ivie, 1942), T. concinna (Gertsch, 1974), T. devia (Gertsch, 1974), T. furtiva (Gertsch, 1974), T. microps (Gertsch, 1974), T. myopica (Gertsch, 1974), T. paraconcinna (Cokendolpher & Reddell, 2001), T. uvaldea (Gertsch, 1974) and T. valverdae (Gertsch, 1974), new combinations. Leptoneta sandra Gertsch, 1974 cannot be placed in any North American, European or Asian genus and is thus transferred to the new genus Montanineta, gen. nov., giving the new combination Montanineta sandra (Gertsch, 1974).


2005 ◽  
Vol 16 (4) ◽  
Author(s):  
Ifran Aslan ◽  
Andrzej Warchalowski

A series of ca. 50 specimens of a small Longitarsus Latr. in the undescribed species were collected from the North-East of Asia Minor in the field research during the 21.VIII—1.IX.2003. Longitarsus ozbeki sp. n. is described and illustrated from north west of Turkey. This species is phenotypically similar to Longitarsus albineus (Foudras) and Longitarsus artvinus Gruev & Aslan. L. ozbeki sp. n. differs from the other two species by the outline of pronotum, coloration of body, punctuation of elytra, coloration of claws, tarsomeres, and metanotum, central lobe of anal sternite in male, aedeagus and spermathecae. Length ofbody is 1.9— 2.2 mm (mean 2.13 mm) and 2.4—2.6 mm (mean 2.46 mm) in male and female, respectively.


2009 ◽  
Vol 99 (4) ◽  
pp. 419-425 ◽  
Author(s):  
Bianca de A Carvalho ◽  
Luiz F. B Oliveira ◽  
Margarete S Mattevi

The genus Thylamys Gray, 1843 lives in the central and southern portions of South America inhabiting open and shrub-like vegetation, from prairies to dry forest habitats in contrast to the preference of other Didelphidae genera for more mesic environments. Thylamys is a speciose genus including T. elegans (Waterhouse, 1839), T. macrurus (Olfers, 1818), T. pallidior (Thomas, 1902), T. pusillus (Desmarest, 1804), T. venustus (Thomas, 1902), T. sponsorius (Thomas, 1921), T. cinderella (Thomas, 1902), T. tatei (Handley, 1957), T. karimii (Petter, 1968), and T. velutinus (Wagner, 1842) species. Previous phylogenetic analyses in this genus did not include the Brazilian species T. karimii, which is widely distributed in this country. In this study, phylogenetic analyses were performed to establish the relationships among the Brazilian T. karimii and all other previously analyzed species. We used 402-bp fragments of the mitochondrial cytochrome b gene, and the phylogeny estimates were conducted employing maximum parsimony (MP), maximum likelihood (ML), Bayesian (BY), and neighbor-joining (NJ). The topologies of the trees obtained in the different analyses were all similar and pointed out that T. karimii is the sister taxon of a group constituted of taxa from dry and arid environments named the dryland species. The dryland species consists of T. pusillus, T. pallidior, T. tatei, and T. elegans. The results of this work suggest five species groups in Thylamys. In one of them, T. velutinus and T. kariimi could constitute a sister group forming one Thylamys clade that colonized Brazil.


Author(s):  
Peter R. Dawes ◽  
Bjørn Thomassen ◽  
T.I. Hauge Andersson

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Dawes, P. R., Thomassen, B., & Andersson, T. H. (2000). A new volcanic province: evidence from glacial erratics in western North Greenland. Geology of Greenland Survey Bulletin, 186, 35-41. https://doi.org/10.34194/ggub.v186.5213 _______________ Mapping and regional geological studies in northern Greenland were carried out during the project Kane Basin 1999 (see Dawes et al. 2000, this volume). During ore geological studies in Washington Land by one of us (B.T.), finds of erratics of banded iron formation (BIF) directed special attention to the till, glaciofluvial and fluvial sediments. This led to the discovery that in certain parts of Daugaard-Jensen Land and Washington Land volcanic rocks form a common component of the surficial deposits, with particularly colourful, red porphyries catching the eye. The presence of BIF is interesting but not altogether unexpected since BIF erratics have been reported from southern Hall Land just to the north-east (Kelly & Bennike 1992) and such rocks crop out in the Precambrian shield of North-West Greenland to the south (Fig. 1; Dawes 1991). On the other hand, the presence of volcanic erratics was unexpected and stimulated the work reported on here.


1964 ◽  
Vol 44 (1) ◽  
pp. 1-8

Early in 1963 much of the land occupied by the Roman building at Fishbourne was purchased by Mr. I. D. Margary, M.A., F.S.A., and was given to the Sussex Archaeological Trust. The Fishbourne Committee of the trust was set up to administer the future of the site. The third season's excavation, carried out at the desire of this committee, was again organized by the Chichester Civic Society.1 About fifty volunteers a day were employed from 24th July to 3rd September. Excavation concentrated upon three main areas; the orchard south of the east wing excavated in 1962, the west end of the north wing, and the west wing. In addition, trial trenches were dug at the north-east and north-west extremities of the building and in the area to the north of the north wing. The work of supervision was carried out by Miss F. Pierce, M.A., Mr. B. Morley, Mr. A. B. Norton, B.A., and Mr. J. P. Wild, B.A. Photography was organized by Mr. D. B. Baker and Mrs. F. A. Cunliffe took charge of the pottery and finds.


In this paper the author investigates the periodical variations of the winds, rain and temperature, corresponding to the conditions of the moon’s declination, in a manner similar to that he has already followed in the case of the barometrical variations, on a period of years extending from 1815 to 1832 inclusive. In each case he gives tables of the average quantities for each week, at the middle of which the moon is in the equator, or else has either attained its maximum north or south declination. He thus finds that a north-east wind is most promoted by the constant solar influence which causes it, when the moon is about the equator, going from north to south; that a south-east wind, in like manner, prevails most when the moon is proceeding to acquire a southern declination ; that winds from the south and west blow more when the moon is in her mean degrees of declination, going either way, than with a full north or south declination ; and that a north-west wind, the common summer and fair weather wind of the climate, affects, in like manner, the mean declination, in either direction, in preference to the north or south, and most when the moon is coming north. He finds the average annual depth of rain, falling in the neighbourhood of London, is 25’17 inches.


2009 ◽  
Vol 6 (2) ◽  
pp. 36-38 ◽  
Author(s):  
Zahid Latif

Ireland is the third largest island in Europe and the twentieth largest island in the world, with an area of 86 576 km2; it has a total population of slightly under 6 million. It lies to the north-west of continental Europe and to the west of Great Britain. The Republic of Ireland covers five-sixths of the island; Northern Ireland, which is part of the United Kingdom, is in the north-east. Twenty-six of the 32 counties are in the Republic of Ireland, which has a population of 4.2 million, and its capital is Dublin. The other six counties are in Northern Ireland, which has a population of 1.75 million, and its capital is Belfast. In 1973 both parts of Ireland joined the European Economic Community. This article looks at psychiatry in the Republic of Ireland.


1954 ◽  
Vol 49 ◽  
pp. 267-291
Author(s):  
Elizabeth B. Wace

The Cyclopean Terrace Building lies to the north-west of the Lion Gate on the northern end of the Panagia Ridge and faces almost due west across the valley of the Kephissos and modern main road from Corinth to Argos. It lies just below the 200 m. contour line, and one terrace below the houses excavated in 1950–51 by Dr. Papadimitriou and Mr. Petsas to the east at the same end of the ridge. The area contains a complex of buildings, both successive and contemporary, and in view of the discovery of structures both to the south-west and, by the Greek Archaeological Service, to the north-east it is likely that this whole slope was covered by a portion of the outer town of Mycenae. This report will deal only with the structure to which the name Cyclopean Terrace Building was originally given, the so-called ‘North Megaron’, supported by the heavy main terrace wall.The excavation of this structure was begun in 1923. The main terrace wall was cleared and two L.H. IIIC burials discovered in the top of the fill in the south room. In 1950 it was decided to attempt to clear this building entirely in an endeavour to find out its date and purpose. The clearing was not, however, substantially completed until the close of the 1953 excavation season, and this report presents the available evidence for the date as determined by the pottery found beneath the building; the purpose is still a matter for study, though various tentative conclusions can be put forward.


Author(s):  
Tonny B. Thomsen ◽  
Christian Knudsen ◽  
Alana M. Hinchey

A multidisciplinary provenance study was conducted on stream sediment samples from major rivers in the eastern part of Labrador, Canada (Fig. 1). Th e purpose was to fi ngerprint the sources that deliver material to the stream sediments and to the reservoir sand units deposited off shore in the sedimentary basins in the Labrador Sea. We used a multimineral U-Pb geochronological approach employing rutile and titanite in addition to zircon to obtain unbiased age data. Th e purpose of this was to characterise the diff erent igneous and metamorphic episodes that occurred in Labrador, which is an area with highly variable geology characterised by the Palaeoproterozoic south-eastern Churchill province in the north-west, the Archaean Nain plutonic suite in the north-east, the Palaeoproterozoic Makkovik province in the east and the Mesoproterozoic Grenville Province to the south. Th e fi eld work was carried out in 2012 and 2013 and the study is a collaborative project between the Geological Survey of Denmark and Greenland and the Geological Survey of Newfoundland and Labrador. In this paper we focus on three samples from the southern part of the study area where two parts of the Grenville orogeny are found (Fig. 1).


Finisterra ◽  
2012 ◽  
Vol 31 (62) ◽  
Author(s):  
Andrew Pike ◽  
Mário Vale

The industrial policy in the UK and in Portugal, as in most EU countries, seeks to attract new investment capacity, to create jobs and to promote the impact of the so-called "demonstration efect" of "greenfield" development strategies pursued in the new plants of inward investors on existing or "brownfield" plants. This industrial policy focus is particularly evident in the automobile industry.This paper compares the industrial policy oriented towards the automobile industry in the UK and in Portugal. Two recent "greenfield" investments are analised: Nissan in the North-East region (UK) and Ford/VW in the Setúbal Peninsula (Portugal), as well as three "brownfield" plants: Ford Halewood and GM Vauxhall Ellesmere Port in the North-West region (UK) and Renault in Setúbal (Portugal). The first part starts with a discussion of industrial policy in the automobile sector, the role of "greenfield" development strategies and the "demonstration effect" on "brownfield" plants. Then, the limits of new inward investment are pointed out, basically their problems and restrictions. Afterwards, the structural barriers to the "demonstration effect" within "brownfield" plants are outlined and some possabilities for alternative "brownfield" development strategies are presented.


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