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| Registros recuperados: 271 | |
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| 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 |
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| Pardiñas,Ulyses F. J.; Abba,Agustín M.; Merino,Mariano L.. |
| Species of small mammals from southwestern Buenos Aires province range within a wide variety of habitats, herbaceous (Pampean District), shrubs (Monte District), steppes, and xerophytic woodlands (Espinal District). Their natural history is still poorly known. In this paper we make a synthesis of the taxonomy and distribution of the marsupials (Marmosinae) and rodents (Sigmodontinae) of southwestern Buenos Aires province. Distributional records and taxonomical information were obtained from field survey, analyses of raptor pellets, revision of specimens housed in collections in Argentina, and literature. Between Sierra de la Ventana (38º S) and the río Negro (41ºS) occur two species of marmosines and 14 of sigmodontine rodents. Some of these species show a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antrophic impact; Argentina; Biogeography; Marmosinae; Sigmodontinae. |
| Ano: 2004 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832004000200006 |
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| Ericson, P.G.P.. |
| The paper summarizes the current understanding of the evolution and diversification of birds. New insights into this field have mainly come from two fundamentally different, but complementary sources of information: the many newly discovered Mesozoic bird fossils and the wealth of genetic analyses of living birds at various taxonomic levels. The birds have evolved from theropod dinosaurs from which they can be defined by but a few morphological characters. The early evolutionary history of the group is characterized by the extinctions of many major clades by the end of the Cretaceous, and by several periods of rapid radiations and speciation. Recent years have seen a growing consensus about the higher- level relationships among living birds, at least as... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Aves; Phylogeny; Systematics; Fossils; DNA; Genetics; Biogeography; 42.83. |
| Ano: 2008 |
URL: http://www.repository.naturalis.nl/record/280479 |
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| Wesselingh, F.P.; Salo, J.A.. |
| Between c. 23 and 8 Ma, western Amazonia was occupied by the vast Pebas long-lived lake/wetland system. The Pebas system had a variety of influences over the evolution of Miocene and modern Amazonian biota; it formed a barrier for the exchange of terrestrial biota, a pathway for the transition of marine biota into freshwater Amazonian environments, and formed the stage of remarkable radiations of endemic molluscs and ostracods. The lithological variation of the Pebas Formation has furthermore enhanced edaphic heterogeneity in western Amazonia, sustaining present-day high terrestrial diversity in the region. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Miocene; Amazonia; Biogeography; Biodiversity; Mollusca; 42.73; 38.22. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/209738 |
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| Doesburg, P.H. van; Cassis, G.; Monteith, G.B.. |
| A new species belonging to the genus Proxylastodoris Heiss & Popov, 2002, P. kuscheli spec. nov., of the subfamily Xylastodorinae Barber, 1920 (Heteroptera: Thaumastocoridae) is described from New Caledonia. It is the first recent record outside the western Hemisphere of the Xyalstodorinae and is the largest known member of the family Thaumastocoridae. The new species was collected on inflorescences of the native New Caledonian palm species Burretiokentia vieillardii (Brongn. & Gris) Pichi-Serm. The habitat, collecting methods, host plant and biology of the new species are described. The biogeography of the Thaumastocoridae and Xylastodorinae is discussed and suggestions for further research are proposed. This discovery is characterised as the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Biogeography; New species; Palmae; Proxylastodoris kuscheli; Xylastodorinae; 42.75. |
| Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/358745 |
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| Sluys, Ronald; Kawakatsu, Masaharu. |
| An account is given of 13 species of freshwater planarians from the family Dugesiidae, based on samples from new localities in New Zealand and Australia; these include four newly described and one problematic species. In the case of three species, the material described represents the second series of specimens available since the material used in the original descriptions of these species, as a result of which our understanding of the morphology of the animals can be expanded. In other cases, the new material also contributed to a more detailed understanding of the anatomy of the species. The study concludes with detailed distribution maps for the species examined, including not only the new distributional records described in the paper but also... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Platyhelminthes; Dugesiidae; Australia; New Zealand; Taxonomy; Biogeography. |
| Ano: 2001 |
URL: http://www.repository.naturalis.nl/record/504748 |
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| 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 |
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| Steadman, D.W.. |
| The arrival of prehistoric peoples in Oceania over the past several millennia resulted in the extinction of many species and populations of megapodes. Before these anthropogenic losses, species of megapodes ranged across Melanesia, Western Polynesia, and much of Micronesia. Island groups that lack megapodes today but were inhabited by them in the past include New Caledonia, Fiji, the Ha`apai Group and `Eua (Tonga), Samoa, Niue, and Pohnpei. The extinct megapodes varied in size from a tiny, quail-like species of Megapodius in Tonga to the large, flightless Sylviornis of New Caledonia. Remote Tongan islands as small as 13 km2 were able to sustain three species of Megapodius before human impact, thus calling into question the validity of using modern species... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Megapodiidae; Biogeography; Extinction; Oceania; 42.83. |
| Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/219416 |
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| 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 |
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| Wu, M.-J.; Huang, T.-C.; Huang, S.-F.. |
| Species of Euphrasia are distributed in both hemispheres with a series of connecting localities on the mountain peaks of Taiwan and the Malesian region including Luzon, Borneo, Sulawesi, Seram and New Guinea. Two hypotheses are proposed to explain this distribution pattern. The Northern Hemisphere might have been the centre of origin or the Southern Hemisphere. This study aims to reconstruct the core phylogeny of Euphrasia in the connecting areas and tries to identify the migratory direction of Euphrasia in Taiwan and Malesia. The phylogeny of Euphrasia, including sections Euphrasia, Malesianae and Pauciflorae, is reconstructed with the chloroplast molecular markers rps2 gene, trnL intron and trnL-trnF intergenic spacer. The results suggest that the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Biogeography; Euphrasia; Phylogeny; Rps2 gene sequence; TrnL intron sequence; TrnL-trnF intergenic spacer sequence. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/525151 |
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| Registros recuperados: 271 | |
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