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| Registros recuperados: 48 | |
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| Jagt, J.W.M.. |
| An isolated gastropod homing scar, etched into an arcoscalpelline (cirripede) scutum, is recorded from the upper Nekum Member (Maastricht Formation, upper Maastrichtian) at the ENCI-HeidelbergCement Group quarry. This trace may be assignable to the ichnogenus Lacrimichnus Santos, Mayoral & Muñiz, that comprises etching scars produced by Neogene calyptraeid and/or capulid gastropods and ostreid bivalves from southern Spain and Portugal. However, it differs from both ichnospecies currently contained in that ichnogenus, L. bonarensis and L. cacelensis, in showing a relatively deep depression around the rim, irregularly distributed pit- and slit-like depressions, and an irregularly subcircular outline. Despite the wealth of available hard substrates... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Trace fossil; Homing scar; Gastropoda; Lacrimichnus; Cirripedia; Upper Cretaceous; Maastrichtian; The Netherlands; 38.22; 42.73. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/217413 |
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| Bianucci, G.; Landini, W.. |
| An incomplete odontocete (Mammalia, Cetacea) skull from Middle Miocene Miste Bed (near Winterswijk in the eastern part of The Netherlands) is described as Vanbreenia trigonia, a new genus and species. The skull exhibits a short rostrum with only two maxillary teeth for each toothrow and with narrow and toothless apical portion exclusively formed by the premaxilla. Considering this last character, the specimen could belong to the Eurhinodelphinidae even if a certain attribution is not possible because of the incompleteness of the specimen. Vanbreenia n. gen. could represent a specialized adaptation to bottom suction feeding among the eurhinodelphinids. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Cetacea; Odontocete; Systematics; Feeding; Miocene; The Netherlands. |
| Ano: 2002 |
URL: http://www.repository.naturalis.nl/record/505053 |
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| Donovan, S.K.; Jagt, J.W.M.. |
| A single example of Oichnus excavatus Donovan & Jagt, infesting the holasteroid echinoid Hemipneustes striatoradiatus (Leske), is reported from the upper Meerssen Member, Maastricht Formation (uppermost Maastrichtian), of the former Blom quarry, Berg en Terblijt, southern Limburg, The Netherlands. This is the first evidence that O. excavatus may be more widely distributed in the type area of the Maastrichtian than previously assumed. The embedment structure occurs just below the ambitus and close to the peristome, suggesting that the producing organism may have been ingesting detritus from the sea floor rather than filter feeding, the more usual interpretation of its behaviour. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Embedment structure; Trace fossils; Oichnus; Echinoids; Hemipneustes; Maastrichtian; The Netherlands; 42.72. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/210110 |
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| Nieukerken, E.J. van; Doorenweerd, C.; Ellis, W.N.; Huisman, K.J.; Koster, J.C.; Mey, W.; Muus, T.S.T.; Schreurs, A.. |
| Bucculatrix ainsliella Murtfeldt, 1905 is for the first time reported from Europe: the Netherlands, Belgium, and adjacent Germany. DNA barcodes confirm its identity. It is the first North American lepidopteranspecies feeding on northern red oak Quercus rubra ever found in Europe, and only the second North American oak-feeding insect found in Europe. The species has regularly been found in the Netherlands and northern Belgium since 2006, and in 2011 also in Nordrhein-Westfalen in Germany, adjacent to the Dutch border, but the earliest records are from the Netherlands, Amersfoort in 1989 and 1990. Early stages, leafmines, and the adult are described, illustrated, and diagnosed against oak-feeding Bucculatrix ulmella Zeller, 1848 and other similar species.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Bucculatrix ainsliella; Invasive species; Northern red oaks; Quercus rubra; Bucculatricidae; The Netherlands; Belgium; Germany; 42.75; 42.56. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/433335 |
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| Camphuysen, C.J.; Smeenk, C.; Addink, M.; Jansen, O.E.. |
| Between 1998 and 2007, 2063 cetaceans were found stranded in the Netherlands, representing at least 14 species. Two species, humpback whale (Megaptera novaeangliae) and Blainville’s beaked whale (Mesoplodon densirostris), are additions to the Dutch list. Apart from the first humpback whales, relatively many balaenopterid whales were found in comparison with previous decades. Range extension of recovering populations may explain part of this trend. However, the decline in strandings frequency in sperm whales (Physeter macrocephalus), another species with a slowly recovering Atlantic population but with a distinct peak in strandings in the 1990s, suggests that the factors underlying these changes are complex. During the 20th century, the strandings frequency... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Cetaceans; Strandings; The Netherlands; North Sea; Wadden Sea; Fin whale; Sei whale; Minke whale; Humpback; 42.84. |
| Ano: 2008 |
URL: http://www.repository.naturalis.nl/record/328649 |
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| Ciliberti, P.; Jong, H. de; Schouten, M.A.; Verweij, P.A.; Heitmans, W.R.B.. |
| This paper aims at modelling the spatial distribution of the cockroach species Capraiellus panzeri, Ectobius lapponicus, Ectobius pallidus and Ectobius sylvestris within the Netherlands and comparing the habitat preferences of these species. Maxent was used to calculate habitat suitability and to identify environmental variables underlying the differences in observed distribution patterns. A sub-sampling procedure was employed to test model stability. Models were evaluated by calculating the Area Under the Curve (AUC). The analyses show that except for the costal dune area, the western part of the Netherlands is unsuitable for the species. Suitability predictions for C. panzeri, E. lapponicus and E. sylvestris are very similar, with suitable areas... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Capraiellus panzeri; Cockroaches; Ecological niche modelling; Ectobius lapponicus; Ectobius pallidus; Ectobius sylvestris; Maxent; Model stability; The Netherlands; 42.75. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/321914 |
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| Hegger, Dries; Environmental Governance, Copernicus Institute of Sustainable Development, Utrecht University; d.l.t.hegger@uu.nl; Dieperink, Carel; Environmental Governance, Copernicus Institute of Sustainable Development, Utrecht University; c.dieperink@uu.nl. |
| Both in literature and in practice, it is claimed that joint knowledge production (JKP) by researchers, policy makers, and other societal actors is necessary to make science relevant for addressing climate adaptation. Although recent assessments of JKP projects have provided some arguments in favor of their societal merit, much less is known about their scientific merit. We explored the latter by developing a conceptual framework addressing characteristics of doing JKP as well as hypotheses on potential merits and pitfalls in terms of its process, output, and impact for science. Semistructured interviews with six environmental science research leaders as well as discussions with five researchers involved in past JKP projects were used to start... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Climate change adaptation; Joint knowledge production (JKP); Science studies; Survey; The Netherlands. |
| Ano: 2015 |
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| Jagt, J.W.M.; Neumann, C.. |
| A small lot of latest Cretaceous brittlestars from the Maastrichtian type area, contained in the Binkhorst [van den Binkhorst] Collection at the Museum für Naturkunde in Berlin, is restudied and, in part, illustrated for the first time. Presumably, these thirteen specimens represent only a portion of the ophiuroid material referred to in two papers by Binkhorst van den Binkhorst, both published in 1859, because all are assignable to two species which are common only in the Nekum and Meerssen members of the type Maastrichtian, namely Felderophiura vanderhami Jagt, 1991, and Ophiomusium lux Jagt & Kutscher in Jagt, 2000. Brittlestar material from lower levels within the Maastricht Formation (i.e., Valkenburg, Gronsveld, Schiepersberg and Emael members)... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Echinodermata; Ophiuroidea; Late Cretaceous; Maastrichtian; The Netherlands; 38.22. |
| Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/361977 |
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| Registros recuperados: 48 | |
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