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| Registros recuperados: 19 | |
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| Renema, W.; Wakkie, B.. |
| The syrphid genus Callicera in the Netherlands and Belgium (Diptera: Syrphidae) In Europe six species of Callicera are known. Until recently C. aenea, rufa and fagesii were known from both the Netherlands and Belgium. The authors have studied all available material and have gathered field data. In this paper C. aurata is presented for the first time from the Netherlands. Nine females and one male were observed in south of the province of Limburg. All Belgian specimens of C. aenea proved to be C. aurata (pers. com. L. Verlinden). This means that C. aurata has to be added to the Belgian list and C. aenea has to be eliminated. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Nederland; Verspreiding; Fenologie; Biotopen; Herkenning; Determinatiesleutel. |
| Ano: 2001 |
URL: http://www.repository.naturalis.nl/record/218575 |
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| Renema, W.. |
| Three times does the trick, Chalcosyrphus eunotus back on the species list of the Netherlands (Diptera: Syrphidae) Chalcosyrphus eunotus (Loew, 1873) has already been reported twice for the Netherlands, in 1958 and 1965. Both times re-examination of the specimens showed that it concerned Criorhina pachymera (Van der Goot 1969, Van der Linden 1988). On April 6, 2000 a male C. eunotus was caught near Elsloo (Limburg, the Netherlands). The distribution, flight period and habitat of C. eunotus are summarised, and many new European records are given. Chalcosyrphus eunotus usually occurs in deciduous forests (Quercus- Fraxinus-Ulmus) and is often found along the edges of small streams running through the forest (Speight 2000; this paper). The larvae were found... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Nederland; Verspreiding; Herkenning; Biologie; 42.75. |
| Ano: 2001 |
URL: http://www.repository.naturalis.nl/record/218660 |
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| Smit, J.T.; Reemer, M.; Renema, W.. |
| Five new species of the hoverfly genus Cheilosia for the Netherlands (Diptera: Syrphidae) Five species of the hoverfly genus Cheilosia are reported here for the first time for the fauna of the Netherlands. Keys are provided for the identification of the northwestern European species of the canicularis and proxima complexes. Cheilosia aerea Dufour, 1848 was only found in Zuid-Limburg, the most southeastern part of the Netherlands. Except for one specimen from 1943, all 14 specimens were collected in the 1990s. Cheilosia himantopus (Panzer, 1798) occurs in Zuid-Limburg and around Winterswijk in the east of the Netherlands. The species has the same distribution as C. canicularis (Panzer, 1801), with which it had been confused for a long time. Cheilosia... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Nederland; Verspreiding; Biologie; Biotopen; Herkenning; Determinatiesleutel; 42.75. |
| Ano: 2001 |
URL: http://www.repository.naturalis.nl/record/218675 |
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| Reemer, M.; Renema, W.. |
| Three species of hoverflies removed from the Dutch list (Diptera: Syrphidae) Doubtful records of three hoverfly species from the Netherlands are discussed. Two specimens previously identified as Cheilosia acutilabris Becker, 1894 belong to C. proxima (Zetterstedt, 1843). Five specimens previously identified as Melangyna ericarum (Collin, 1946) belong to M. umbellatarum (Fabricius, 1794). Four species previously identified as Paragus finitimus Goeldlin de Tiefenau, 1974 are now considered to belong to P. bicolor (Fabricius, 1794). These results lead to the conclusion that Cheilosia acutilabris, Melangyna ericarum and Paragus finitimus should be removed from the Dutch species list. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Syrphidae; Nederland; Misdeterminatie; Herkenning; 42.75. |
| Ano: 2004 |
URL: http://www.repository.naturalis.nl/record/261965 |
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| Wesselingh, F.P.; Kaandorp, R.J.G.; Vonhof, H.B.; Räsänen, M.E.; Renema, W.; Gingras, M.. |
| The Miocene Pebas Formation from the section Santa Rosa de Pichana (Loreto, Peru) was investigated using a combination of analyses of sedimentary facies, molluscan communities and taphonomy, and stable isotopes of both entire shells and growth bands in bivalves. Three sequences, comprising a succession of transgressive, maximum flooding and regressive/prograding intervals, are documented. Molluscs are most common in the transgressive/highstand intervals and are almost absent in regressive/prograding intervals. The fauna is dominated by endemic Pebasian species, such as Pachydon and Dyris spp. The nature of the deposits as well as the availability of oxygen varied in a predictable way within each of the sequences and determined the nature of the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Miocene; Amazonia; Palaeoecology; Sedimentology; Stable isotopes; 38.22; 42.73. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/209732 |
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| Wesselingh, F.P.; Cadée, G.C.; Renema, W.. |
| The actual and fossil distribution patterns of the aquatic gastropod genera Tryonia and Planorbarius indicate that avian dispersal was an important dispersal mechanism in the geological past. Combining the distribution histories of these genera with ecological data on modern relatives provides insights into the process of dispersal of aquatic taxa in general. Avian dispersal of aquatic taxa is facilitated by a variety of factors, including mass occurrence in resting/foraging places of migrating birds, ways to attach to the birds and to overcome desiccation during flight, as well as easy reproduction from a single specimen when introduced into a new habitat. The uncertain taxonomical status of aquatic organisms, as well as biased preservation and sampling,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Avian dispersal; Aquatic taxa; Biogeography; Distribution; Gastropoda; Mollusca; 42.73. |
| Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/235212 |
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| Renema, W.. |
| The larger benthic foraminifera fauna from four regions at or near Bali are described. In 132 samples in total 19 species were found. This is a similar to species richness in areas like the Spermonde and Cebu, but the fauna composition differed markedly. For each species the occurrence at Bali and environmental parameters affecting this distribution are discussed. It is argued that the very low abundance of imperforate species is not due to the absence of their microhabitat, but due to climatic or oceanographic parameters. The most likely is the presence of periodic upwelling, which causes the seawater temperature to drop to low levels seasonally. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Formanifera; Bali; Indonesia; 42.79. |
| Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/220323 |
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| Registros recuperados: 19 | |
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