Open Marien Archief | Vlaams Instituut voor de Zee
 

Vlaams Instituut voor de Zee

Platform voor marien onderzoek

Open Marien Archief

Het Open Marien Archief van België (OMA) biedt vrije toegang tot de digitale publicaties over de Vlaamse kust en het Belgisch deel van de Noordzee, en alle andere mariene, estuariene en kustgebonden publicaties van Belgische auteurs en wetenschappers en van buitenlandse wetenschappers geaffilieerd aan een Belgische instelling.

Meer info

Nieuwe zoekopdracht
[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

Low propensity for aerial dispersal in specialist spiders from fragmented landscapes
Bonte, D.; Vandenbroecke, N.; Lens, L.; Maelfait, J.-P. (2003). Low propensity for aerial dispersal in specialist spiders from fragmented landscapes. Proc. - Royal Soc., Biol. Sci. 270(1524): 1601-1607. dx.doi.org/10.1098/rspb.2003.2432
In: Proceedings of the Royal Society of London. Series B. The Royal Society: London. ISSN 0962-8452; e-ISSN 1471-2954, meer
Is gerelateerd aan:
Bonte, D.; Vandenbroecke, N.; Lens, L.; Maelfait, J.-P. (2004). Low propensity for aerial dispersal in specialist spiders from fragmented landscapes, in: Bonte, D. Verspreiding van spinnen in grijze kustduinen: ruimtelijke patronen en evolutionair-ecologisch belang van dispersie = Distribution of spiders in coastal grey dunes: spatial patterns and evolutionary-ecological importance of dispersal. pp. 96-108, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Trefwoorden
    Biological phenomena > Evolution
    Dispersal
Author keywords
    evolution; dispersal; habitat specialization; phylogenetical background

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 drag generates an upward lift on a silk thread. 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 from morphological traits, directly linked to active dispersal. Therefore, we expect that if the risk of landing in an unsuitable habitat is lower than the probability of reaching a suitable habitat, selection should benefit a well-developed ballooning behaviour. We investigated interspecific variation in the ballooning-initiating tiptoe behaviour as it is linked to spider dispersal performance. Our results indeed indicate that ballooning performance is negatively related to habitat specialization in spiders from patchy grey dunes, so habitat specialists are characterized by poorly developed dispersal behaviour. These findings are concordant with recent insights that dispersal is selected as risk spreading in generalists, while it is selected against in specialist species.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs