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Registros recuperados: 48
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A Late Cretaceous gastropod homing scar (possibly ichnogenus Lacrimichnus) from southern Limburg, The Netherlands Naturalis
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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A new short-rostrum odontocete (Mammalia: Cetacea) from the middle Miocene of the Eastern Netherlands Naturalis
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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A new species of Eudendrium (Hydrozoa: Anthomedusae: Eudendriidae) from the Netherlands Naturalis
Marques, A.C.; Migotto, A.E..
Eudendrium vervoorti spec. nov. is described from the coast of Zeeland, the Netherlands. A key to Dutch species of Eudendrium is included.
Tipo: Article / Letter to the editor Palavras-chave: Cnidaria; Hydrozoa; Eudendrium; Taxonomy; The Netherlands; New species.; 42.72.
Ano: 1998 URL: http://www.repository.naturalis.nl/record/317808
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An additional record of Oichnus excavatus Donovan & Jagt from the Maastrichtian (Upper Cretaceous) of southern Limburg, The Netherlands Naturalis
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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An early seal (Mammalia, Pinnipedia) from the Middle Miocene (Langhian) of Miste (The Netherlands) Naturalis
Schneider, S.; Heissig, K..
A single, upper premolar tooth of a seal from the Miste mollusc bed (Miocene, middle Langhian: The Netherlands) is determined as an upper P3 of Miophoca cf. vetusta Zapfe. Fossils of this species and genus have to date only been reported from the Late Badenian (uppermost Langhian) of the Central Paratethys, at “Neudorf-Sandberg” (Devínská Nová Ves, Slovakia). This latter locality, however, is some two million years younger than the Miste Bed. The tooth from Miste represents the first evidence for the presence of the genus Miophoca in the North Sea Basin.
Tipo: Article / Letter to the editor Palavras-chave: Miophoca; Pinnipedia; Middle Miocene; Miste; The Netherlands; 42.84.
Ano: 2005 URL: http://www.repository.naturalis.nl/record/210112
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Anatomical evidence for the occurrence of Lymnaea (Galba) palustris (O.F. Müller, 1774) and L. (Galba) corvus (Gmelin, 1778) (Gastropoda: Lymnaeidae) in the Netherlands Naturalis
Velde, G. van der; Kessel, C.M. van.
A study was made on the Lymnaea (Galba) palustris complex in The Netherlands. Investigations on the genitalia proved that in The Netherlands two species are present, viz. L. palustris (O. F. Müller, 1774) and L. corvus (Gmelin, 1778), which can not in all cases be distinguished by shell characters. Genitalia were prepared, drawn and several measurements were carried out to investigate the variation within the two species. It appeared that most characters show a partial or total overlap. Some characters appeared to separate the two species absolutely. One of these is very useful for a quick distinction of both species, viz. the situation of the truncus receptaculi with respect to the oviductus, which character is already visible after a general dissection...
Tipo: Article / Letter to the editor Palavras-chave: Mollusca; Gastropoda; Lymnaeidae; Lymnaea (Galba) palustris; L. (Galba) corvus; Anatomy; The Netherlands; 42.73.
Ano: 1984 URL: http://www.repository.naturalis.nl/record/318120
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Bucculatrix ainsliella Murtfeldt, a new North American invader already widespread on northern red oaks (Quercus rubra) in Western Europe (Bucculatricidae) Naturalis
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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Cetaceans stranded in the Netherlands from 1998 to 2007 Naturalis
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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Consumer driven supply chains: the case of Dutch organic tomato CIGR Journal
Anastasiadis, Foivos; van Dam, Ynte.
Supply chain management refers to the efficient integration of various processes involved in turning resources into consumer products.  Effectiveness of the supply chain is more easily understood in terms of Value Chain Management, and the integration of processes that turn resources into consumer value.  The current paper reports two studies into the value chain of organic produce in The Netherlands.  The paper combines two different research approaches to study which consumer motives and values are the main drivers of organic consumption.  In a qualitative laddering (N=72) study, three distinct groups of motives were identified.  These motives are centred around hedonic, benevolent, and universalist values.  In a quantitative survey (N=1453), the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Supply Chain Management; Consumer Behaviour organic food; Consumer; Supply chain; The Netherlands.
Ano: 2014 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2295
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De Cephidae en Argidae van Nederland (Hymenoptera) Naturalis
Burggraaf - van Nierop, Y.D.; Achterberg, C. van.
The distribution and phenological data of the Cephidae and Argidae from the Netherlands are given. Janus compressus (Fabricius, 1793) is for the first time reported from The Netherlands. Important morphological characters are illustrated and keys to the Dutch species are given. Short notes on synonymy, size and biology are added. Hylotoma tarda Klug, 1814 is synonymized with H. melanura Klug, 1814.
Tipo: Article / Letter to the editor Palavras-chave: Hymenoptera; Cephidae; Argidae; Distribution; Check-lists; The Netherlands; Cala- meuta; Cephus; Hartigia; Janus; Trachelus; Aprosthema; Arge; Sterictiphora.; 42.75.
Ano: 1990 URL: http://www.repository.naturalis.nl/record/317231
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Débarquements internationaux. Façade "Manche est" ArchiMer
Mahe, Kelig; Delpech, Jean-paul; Coppin, Franck; Carpentier, Andre.
This report is a result of a contract between Ifremer and the French Ministry of Industry. The aim was to map the fishery activity and landings for french and some international fishing vessels in the Eastern Channel, vessels which length is more than 10 meters.
Tipo: Text Palavras-chave: The Netherlands; Belgium; England; Germany; France; Landings; Western Channel; Eastern Channel; Pays Bas; Belgique; Angleterre; Allemagne; France; Production; Débarquements; Manche est; Manche orientale.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/rapport-6646.pdf
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Do Farmers Internalise External Impacts of Pesticides in Production? AgEcon
Skevas, Theodoros; Stefanou, Spiro E.; Oude Lansink, Alfons G.J.M..
In modern agriculture, pesticides feature so prominently in growers’ arsenal to reduce crop damage caused by various pests and diseases. But their indiscriminate use can harm human health and the environment and, eventually, impact agricultural productivity negatively. In an era of an increasing public awareness on the external effects of pesticides, the EU is trying to update its pesticide policy by establishing tax and levy schemes. An important question is whether the external impacts of pesticides are also affecting the farmers’ production environment. A damage abatement specification is used consisting of a potential output function and a damage abatement function. The damage abatement function considers both high and low toxicity pesticides, and...
Tipo: Conference Paper or Presentation Palavras-chave: Pesticides; Externalities; Biodiversity; The Netherlands; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Food Security and Poverty; Land Economics/Use; Productivity Analysis.
Ano: 2010 URL: http://purl.umn.edu/109403
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Does Pig Density Matter for the Choice of Control Strategies in Classical Swine Fever Epidemic? AgEcon
Magen, M.-J.J.; Burrell, Alison M.; Nielen, Michel W.F..
This paper examines the importance of pig population density in the area of an outbreak of CSF for the spread of the disease and the choice of control measures. A sector-level market and trade model and a spatial, stochastic, dynamic epidemiological simulation model for the Netherlands were used. Outbreaks in sparsely and densely populated areas were compared under four different control strategies and with two alternative trade assumptions. Results indicate that the control strategy required by current EU legislation is enough to eradicate an epidemic starting in an area with sparse pig population. By contrast, additional control measures are necessary if the outbreak begins in an area with high pig population density. The economic consequences of...
Tipo: Conference Paper or Presentation Palavras-chave: Classical Swine Fever epidemics; Pig population density; Animal transport; Emergency vaccination; Preventive slaughter; The Netherlands; Livestock Production/Industries.
Ano: 2002 URL: http://purl.umn.edu/24920
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Ecological niche models for four native cockroach species (Blattaria: Blattellidae: Ectobiinae) in the Netherlands Naturalis
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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Farm Structure and the Effects of Agri-Environmental Programs: Results from a Matching Analysis for European Countries AgEcon
Pufahl, Andrea; Weiss, Christoph R..
This paper extends previous research (Pufahl and Weiss, 2009) and applies a semi-parametric propensity score matching approach to evaluate the effects of agrienvironment (AE) programs on input use and farm output of individual farms in eight Member States of the European Union. We find substantial differences in treatment effects between countries. The analysis reveals significant effects of AE participation on production (Germany, France) and farm profits (France, Ireland, United Kingdom). AE participation sporadically reduces the intensity of land use as measured by the purchase of farm chemicals (fertilizer, pesticide) and grazing livestock densities. We also find differences in the treatment effect among farms with different farm size (heterogeneous...
Tipo: Conference Paper or Presentation Palavras-chave: Evaluation; Agri-environment programs; Propensity score matching; Germany; Italy; Spain; France; Portugal; United Kingdom; The Netherlands; EU-15; Agribusiness; Agricultural and Food Policy.
Ano: 2009 URL: http://purl.umn.edu/52997
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Gliridae (Rodentia, Mammalia) from the Upper Pliocene of Tegelen (province of Limburg, The Netherlands) Naturalis
Hoek Ostende, L.W. van den.
Two species of dormouse have been found in the Upper Pliocene clays of Tegelen, Muscardinus pliocaenicus and Glirulus pusillus. The latter is the first record of this genus in The Netherlands. Muscardinus pliocaenicus shows derived characteristics and is close to the Recent hazelmouse M. avellanarius. The record of Glirulus pusillus is one of the last in Europe. Like the flying squirrel Hylopetes debruijni, also known from Tegelen, G. pussilus ranks among a group of Pliocene animals with its living relatives in Asia. Thus, there is an analogy with the Tertiary flora, which also has relicts in the same area.
Tipo: Article / Letter to the editor Palavras-chave: Tegelen; Muscardinus; Glirulus; Pliocene; The Netherlands; 42.84; 38.22.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/219300
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Het genus Hylaeus in Nederland (Hymenoptera, Colletidae) : with a key to the species of N.W. Europe in English Naturalis
Koster, A..
The distribution and ecology of all twenty species of Hylaeus Fabricius, 1793 occurring in The Netherlands are discussed. A comprehensive key (in English) to the species of The Netherlands and adjacent areas is given. The maps illustrating the distribution within The Netherlands are based upon ca. 10,000 specimens. The collection of the Leiden Museum and literature sources were used in preparing the maps showing the distribution in Europe. Two species, H. pfankuchi and H. styriacus, have not been recorded from the Netherlands since 1950.
Tipo: Article / Letter to the editor Palavras-chave: Hymenoptera; Colletidae; Hylaeus; Distribution; Ecology; The Netherlands; Keys.; 42.75.
Ano: 1986 URL: http://www.repository.naturalis.nl/record/317227
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Joint knowledge production for climate change adaptation: what is in it for science? Ecology and Society
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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Larger benthic Foraminifera of the type Maastrichtian Naturalis
Renema, W.; Hart, M.B..
Brief descriptions are presented of species of larger benthic foraminifera found in the type area of the Maastrichtian, supported by an identification key.
Tipo: Article / Letter to the editor Palavras-chave: Larger benthic foraminifera; Maastrichtian; Maastricht; The Netherlands; 42.89; 38.22.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/428926
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Late Cretaceous ophiuroids in the Binkhorst Collection at the Museum für Naturkunde, Berlin, reassessed Naturalis
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
Registros recuperados: 48
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