[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina
Low ballooning propensity in habitat specialist spiders (Araneae) from grey dunes: rare species will become rarer in a fragmented landscape
Bonte, D.; Vandenbroecke, N.; Lens, L.; Maelfait, J.-P. (2003). Low ballooning propensity in habitat specialist spiders (Araneae) from grey dunes: rare species will become rarer in a fragmented landscape, in: Mees, J. et al. VLIZ Young Scientists' Day, Brugge, Belgium 28 February 2003: book of abstracts. VLIZ Special Publication, 12: pp. 25
In: Mees, J.; Seys, J. (Ed.) (2003). VLIZ Young Scientists' Day, Brugge, Belgium 28 February 2003: book of abstracts. VLIZ Special Publication, 12. Vlaams Instituut voor de Zee: Oostende. VIII, 69 pp., meer
In: VLIZ Special Publication. Vlaams Instituut voor de Zee (VLIZ): Oostende. ISSN 1377-0950, meer
Beschikbaar in  Auteurs 
Documenttype: Samenvatting
Trefwoorden
    Belgium
    Equipment > Measuring devices > Flow measuring equipment > Wind measuring equipment > Balloons
    Habitat
    Spiders
    Spiders
    Taxa > Species > Rare species
    Topographic features > Beach features > Dunes
    Araneae [WoRMS]
    België [Marine Regions]
    Terrestrisch
Auteurs  Top 
  • Bonte, D., meer
  • Vandenbroecke, N.
  • Lens, L., meer
  • Maelfait, J.-P., meer
Abstract
    Aerial dispersal by ballooning is a passive flight, by which wind dragging generates an upward lift on a silk treat. It is likely to reflect an aerial lottery, in which the absence of flight direction control is a serious cost for long-distance dispersal in a fragmented landscape. For species, occurring in one patchily distributed habitat type, dispersal should evolve in a different way than morphological traits, linked to active dispersal. Especially in fragmented habitats, we expect positive selection for the performance of the ballooning dispersal if the individual benefits from the dispersal in terms of survival. Only if the risk of landing in an unsuitable habitat is lower than the probability in reaching a suitable habitat, selection should benefit a well-developed ballooning behaviour. Our results indicate that ballooning performance is negatively related to habitat specialisation in spiders from patchy grey dunes and related to local distribution patterns. Deviations from this relationship can be attributed to other additional dispersal mechanisms and variation in life histories.
Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs 
IMIS is ontwikkeld en wordt gehost door het VLIZ.