|
|
|
|
|
| Felix, R.; Kleef, H. van. |
| Oecanthus pellucens entering the Netherlands at Lobith (Orthoptera: Gryllidae) On august 8, 2004 a male Oecanthus pellucens was heard along the river Waal, just east of the city of Nijmegen (the Netherlands). Additional searches revealed that the species is distributed from the German border towards Nijmegen and Arnhem along the rivers Waal and Rhine respectively. These observations confirm that O. pellucens has successfully colonised the Netherlands in a natural way and has probably been present for several years. Previous records of O. pellucens in the Netherlands were attributed to transport by traffic from southern Europe. All specimens were found along the shore of the river, indicating that dispersal is accomplished by water transport during... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Boomkrekel; Nederland; Verspreiding; Herkenning; 42.75. |
| Ano: 2004 |
URL: http://www.repository.naturalis.nl/record/261967 |
| |
|
|
| Felix, R.; Hoof, P. van. |
| A large population of the sicklebearing bush-cricket Phaneroptera falcata on the Oirschotse Heide (Orthoptera: Tettigoniidae) In 2003 a large population of Phaneroptera falcata was found at the Oirschotse heide, in the province of Noord-Brabant in the Netherlands. The total number of individuals was estimated at 15,000 with a density of approximately 1 specimen per square meter. A large population like this has never been reported for the Netherlands. In the rest of Europe densities of P. falcata between 0,01 and 0,13 specimens per square meter are reported. The location is a former agricultural field (7 ha) with a rough vegetation dominated by Senecio jacobea and Cirsium arvense. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Sprinkhanen; Phaneroptera falcata; Verspreiding; Nederland; 42.75. |
| Ano: 2004 |
URL: http://www.repository.naturalis.nl/record/261961 |
| |
|
|
| Felix, R.. |
| The two-coloured bush-cricket Metrioptera bicolor, first record for the Netherlands (Orthoptera: Tettigoniidae) The first record of Metrioptera bicolor for the Netherlands is presented. A long winged male was found singing in a chalk grassland with high vegetation in the Poppelmondedal on the Sint Pietersberg (southernmost part of the province of Limburg). Recently the species has reached close to the Dutch border in Belgium and Germany. The northward expansion of this highly xerothermophilic species is due to a period of warm summers on a row. Whether the species will settle in the Netherlands depends on the climatic conditions. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Sprinkhanen; Nederland; Herkenning; Verspreiding; 42.75. |
| Ano: 2004 |
URL: http://www.repository.naturalis.nl/record/261968 |
| |
|
|
|
