|
|
|
| Registros recuperados: 271 | |
|
| |
|
|
| Abatzopoulos, Th. J.; Amat, F.; Baxevanis, A. D.; Belmonte, G.; Hontoria, F.; Maniatsi, S.; Moscatello, S.; Mura, G.; Shadrin, N. V.. |
| Artemia urmiana (a species previously considered endemic of Lake Urmia, NW Iran) has been found in Lake Koyashskoe, a hypersaline lake on the Black Sea coast of the Crimean peninsula (Ukraine). Therefore, this is the first record of A. urmiana in Europe which updates its distribution. The species identification was based on an integrated and interdisciplinary approach using discriminant analysis of the morphometric characters, scanning electron microscopy, and molecular profile analysis. The data derived from the above mentioned approaches converge to significant similarity of the population under investigation with A. urmiana. The updated geographic distribution of the species, deriving from the present report, asks for additional contribution of other... |
| Tipo: Journal Contribution |
Palavras-chave: Salt lakes; Scanning electron microscopy; Discriminant analysis; Molecular analysis; Biogeography. |
| Ano: 2009 |
URL: http://repository.ibss.org.ua/dspace/handle/99011/1069 |
| |
|
|
| ACEVEDO,Aldemar A.; ARMESTO SANGUINO,Orlando; OLARTE QUIÑÓNEZ,Camilo Andrés; SOLANO,Liliana; ALBORNOZ ESPINEL,Mónica María; CABRERA,James Alexis; CARRERO SARMIENTO,Diego Armando. |
| ABSTRACT We present an estimation of the potential species richness of frogs, and diurnal butterflies distributed in the departments of Norte de Santander and Santander, Colombia, and analyze the implications for conservation of such high Andean species. From June 2012 to May 2016, we sampled across the Almorzadero, Santurbán and Tamá biogeographical units to gather presence data of 7 anuran species and 29 butterflies species from the superfamily Papilionoidea. We modeled the potential distribution of each species, converted every model to binary, and the sum up of unique species per cell allowed to estimate the model of potential richness, generating the total number of species for every 1 km2 cell. Every model was validated against field data, vegetation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biogeography; Biological diversity; Conservation; High Andean species; Species distribution models. |
| Ano: 2018 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2018000200151 |
| |
|
| |
|
| |
|
|
| Aedo, C.; Aldasoro, J.J.; Navarro, C.. |
| The sections Azorelloida, Neoandina, and Paramensia of Geranium, all of them from the Andes, are taxonomically revised. Fruits with the ‘seed ejection-type’ dispersal have been found in all species, which allows classifying them within subg. Geranium. The sections Azorelloida and Paramensia consist of one and two species respectively, while section Neoandina comprises 24 taxa. Prior to this revision, the stemless species of Geranium from the Andes have been considered to belong to sect. Andina. Geranium sessiliflorum (type of Geranium sect. Andina), however, should be included in sect. Chilensia. Therefore, recently a new sect. Neoandina has been described to include most of the sect. Andina species (Aedo, 2000). Diagnostic morphological features are... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Geraniaceae; Geranium; Biogeography; Distribution; Phylogeny; Systematics; S America.; Geraniaceae; Geranium; Biogeografía; Distributión; Filogenia; Sistemática; Sudamérica. |
| Ano: 2002 |
URL: http://www.repository.naturalis.nl/record/524846 |
| |
|
|
| Albertson,Jesse L.; Dietrich,Christopher H.. |
| The treehopper genus Tolania Stål (Hemiptera: Membracidae: Nicomiinae: Nicomiini) and 69 valid species (59 new) are described and illustrated based on adult morphology. Ten informal species groups are recognized based on a previously published phylogenetic analysis: (1) the dira species group comprising T. calista sp. nov., T. dira sp. nov., T. inca sp. nov., T. macaria sp. nov., T. secoya sp. nov., and T. zaparo sp. nov.; (2) the fasciata species group comprising T. fasciata (Walker), T. gracilis sp. nov., and T. laticlava sp. nov.; (3) the femoralis species group comprising T. femoralis Stål, T. fraterna Stål, and T. roberti sp. nov.; (4) the furcata species group comprising T. furcata sp. nov., T. tryphena sp. nov., and T. venezuelensis sp. nov.; (5)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biogeography; Homoptera; Identification; Morphology; Taxonomy. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000400002 |
| |
|
|
| Almaca, Carlos. |
| Coming from Oriental Asia and Siberia, the Cyprinidae reached the Iberic Peninsula probably at the end of the Oligocene. Their populations bore speciation processes which led to the formation of a fauna rich in endemic species and subspecies. Populations of two of the genera Barbus and Pseudophoxinus reached Northwestern African forming there several endemic species. Concerning the speciation forms, it is probable that the allopatric form, whether by foundation effect or by subdivision, played an important part. Pyrenees and Mediterranean Sea settled probably efficient barriers for the Iberic Cyprinidae isolation. The present geographical repartition of Cyprinidae in Iberic Peninsula suggests that altitude lines and glaciations which reached the north of... |
| Tipo: Text |
Palavras-chave: Portugal; Spain; Cyprinidae; Biogeography; Speciation. |
| Ano: 1976 |
URL: http://archimer.ifremer.fr/doc/1976/publication-1997.pdf |
| |
|
|
| Altaba, Cristian R.. |
| The allozyme data base of Arntzen & García-París (1995) on midwife toads (Alytes, Discoglossidae) is reanalysed considering each locus as a discrete character. The phylogeny thus inferred differs from the one obtained with genetic distances in the position of A. dickhilleni from the Betic region – it appears that its sister species is the widespread A. obstetricans, not the Mallorcan endemic A. muletensis. This phylogenetic hypothesis agrees with the taxonomic treatment of the genus based on morphology. A testable biogeographic hypothesis is proposed to account for the diversification of midwife toads in Iberia and the Balearics. The postulated underlying geological changes were the spread of inland saline lakes that divided Iberia (16 mY B.P.), the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Alytes; Midwife toads; Taxonomy; Phylogeny; Biogeography; Western Mediterranean; Iberia; Balearic Islands. |
| Ano: 1997 |
URL: http://www.repository.naturalis.nl/record/504192 |
| |
|
|
| Araujo, Paula Beatriz; Leistikow, Andreas. |
| Several species of “philosciid” Oniscidea are known from Brazil, most of them were found in the southern and eastern parts of this country. The genera Atlantoscia Ferrara & Taiti, 1981, Benthana Budde-Lund, 1908 and Balloniscus Budde-Lund, 1908, the latter considered to represent a separate family Balloniscidae Vandel, 1963, are considered the only neotropical philosciids bearing respiratory areas on their pleopods. Therefore, representatives of these genera are re-examined to shed new light on the question whether these species can be considered to be a monophylum with the autapomorphy “respiratory areas present”, The phytogeny of the above-mentioned genera is discussed under morphological and biogeographical aspects. Furthermore, a remarkable new... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Peracarida; Isopoda; Philosciids; Pleopodal lungs; Biogeography; Brazil. |
| Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/534349 |
| |
|
| |
|
|
| Arntzen, J.W.; García-París, M.. |
| Three competing phylogenetic hypotheses for the genus Alytes (midwife toads) are evaluated. Based on quantitative coding of protein characters the most parsimonious solution shows a sister taxon relationship for Alytes dickhilleni and A. muletensis. The alternatives in which A. obstetricans has its sister group in either A. dickhilleni or A. muletensis lack support. Using calibrations derived from protein evolutionary rates, the vicariant events giving rise to A. obstetricans and the lineage leading to the A. muletensis and A. dickhilleni clade and the subsequent splitting between A. muletensis and A. dickhilleni cannot be placed much earlier than the Miocene-Pliocene boundary. Biogeographical scenarios invoking an earlier time of divergence should be... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Allozymes; Alytes; Biogeography; Midwife toads; Phylogenetics; Spain; Taxonomy; Vicariance. |
| Ano: 1997 |
URL: http://www.repository.naturalis.nl/record/504096 |
| |
|
|
| Arntzen, J.W.; Wallis, Graham P.. |
| Within the newt genus Triturus, the large-bodied species in the T. cristatus (crested newt) superspecies show an unusual degree of variation in relative trunk length as a result of among-taxon variation in interlimb vertebral count. Here we examine the systematic value of this feature as assessed by both exterior measurement (Wolterstorff Index) and direct radiographic count of rib-bearing vertebrae, with particular reference to a number of confounding factors (sex differences, hybridisation, geographic variation, allometry, preservation effects). Using our mtDNA haplotype data, which are largely concordant with geographic distribution of species, we find that direct count of the rib-bearing vertebrae performs more reliably (14% misclassification) than... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Asymmetric hybridisation; Biogeography; Crested newt; Geographic variation; Morphology; MtDNA; Taxonomy; Triturus cristatus. |
| Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/534387 |
| |
|
|
| Arratia,Gloria; Quezada-Romegialli,Claudio. |
| ABSTRACT A study including morphological characters and mitogenomics of South American and Australian fishes previously assigned to Percichthyidae was conducted. Results generated from these different data sets reveal major disagreements concerning the content and interpretation of the so-called percichthyids. A phylogenetic analysis based on 54 morphological characters suggests the existence of two major clades: (1) Percichthyidae, including the South American Percichthys and the Australian taxa Macquaria australasica, Macquaria (= Plectroplites), and Maccullochella; (2) Perciliidae with the South American genus Percilia at the base plus more advanced Australian genera Nannoperca, Nannatherina, Bostockia, and Gadopsis. In contrast, molecular and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biogeography; Endemism; Morphology; Phylogeny; Taxonomy. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000100301 |
| |
|
|
| Ateweberhan, M.; Prud’homme van Reine, W.F.. |
| A survey of seaweeds was made in Eritrea in December 1995 and January 1996 on some islands of the Dahlak Archipelago and the surroundings of the port town of Massawa. During our study 101 specific and infraspecific taxa were identified, including 26 Chlorophyta, 20 Phaeophyta and 55 Rhodophyta. The survey resulted in 36 new records for Eritrea (11 Chlorophyta, 7 Phaeophyta and 18 Rhodophyta). Of these Eritrean records, 26 are new for the Red Sea (5 Chlorophyta, 4 Phaeophyta and 17 Rhodophyta). Comparison of records of seaweeds from localities in Eritrea to those from other localities in Eritrea as well as from other coasts of the western Indian Ocean have revealed that the regional distribution of seaweeds in the Red Sea is very patchy and that generally... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Benthic marine macroalgae; Biogeography; Eritrea; Red Sea; Taxonomy. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/524925 |
| |
|
| |
|
|
| Baker, D.B.. |
| An annotated facsimile of those pages of Alfred Russel Wallace’s notebook recording his consignments from the Malay Archipelago to his London agent, Samuel Stevens, is provided. Records of individual consignments are linked with the stages of Wallace’s and Charles Allen’s itineraries to which they relate and are amplified from data provided by Wallace elsewhere; wherever possible, dates and places of the despatch of consignments and of the dates of their receipt in London are noted; and the dates of material becoming available for study are established, chiefly from British Museum accessions registers. It is intended that this should provide readier access to scattered collection data and should in particular assist in determining what specimens may... |
| Tipo: Article / Letter to the editor |
Palavras-chave: A.R. Wallace; C. Allen; S. Stevens; Malaysia; Indonesia; Biography; Biogeography; Biodiversity; 42.05. |
| Ano: 2001 |
URL: http://www.repository.naturalis.nl/record/217448 |
| |
|
| |
|
|
| Balzano, Sergio; Percopo, Isabella; Siano, Raffaele; Gourvil, Priscillia; Chanoine, Melanie; Marie, Dominique; Vaulot, Daniel; Sarno, Diana. |
| Seventy-five diatoms strains isolated from the Beaufort Sea (Canadian Arctic) in the summer of 2009 were characterized by light and electron microscopy (SEM and TEM) as well as 18S and 28S rRNA gene sequencing. These strains group into 20 genotypes and 17 morphotypes and are affiliated with the genera Arcocellulus, Attheya, Chaetoceros, Cylindrotheca, Eucampia, Nitzschia, Porosira, Pseudo-nitzschia, Shionodiscus, Thalassiosira, Synedropsis. Most of the species have a distribution confined to the northern/polar area. Chaetoceros neogracilis and Chaetoceros gelidus were the most represented taxa. Strains of C. neogracilis were morphologically similar and shared identical 18S rRNA gene sequences, but belonged to four distinct genetic clades based on 28S rRNA,... |
| Tipo: Text |
Palavras-chave: Biogeography; ITS; ITS2 secondary structure; LSU; Morphology; Phylogeny; Polar diatoms; SSU. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00356/46718/46584.pdf |
| |
|
|
| BAO,FRANCIELLI; LEANDRO,THALES D.; ROCHA,MAÍRA DA; SANTOS,VANESSA S. DOS; STEFANELLO,THIAGO H.; ARRUDA,RAFAEL; POTT,ARNILDO; DAMASCENO-JÚNIOR,GERALDO A.. |
| ABSTRACT The Brazilian Pantanal is an extensive wetland with heterogeneous habitats, primarily due to the river-floodplain system and plants with differential adaptations and reproductive strategies. Factors such as altitude, distance among plant formations, and flood pulse must be considered to better understand its diversity. Aiming to assess the influence of biogeographic patterns in this system, we analyzed the floristic composition of six areas along the Paraguay River, including residual relieves, verifying the pattern of similarity, and effects of distance and altitude. We recorded 356 species in 87 families, mostly perennial (75%), and some annuals (15%) and pluriannuals (5%). Herbaceous plants were the most represented (48%), followed by arboreal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biogeography; Floodplain; Floristics; Pantanal; Vegetation. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100085 |
| |
| Registros recuperados: 271 | |
|
|
|
