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Dispersal of wolf spider, Pardosa monticola, in linear corridor, Breckland, UK

2010Dispersal of wolf spider, Pardosa monticola, in linear corridor, Breckland, UKWAIBOONYA Panya (Thailand)panya_wiboonya@hotmail.com
Organisation:University of East Anglia, Norwich (UK)Supervisor :Paul Dolman
Summary: Ecological corridors have been used as alternatives for creating connectivity among remnant habitat. However understanding ground fauna reaction to such corridors is still unclear. Here, I studied whether corridors promote the movement of an active ground predator, the wolf spider, Pardosa monticola. Furthermore, I tested the effect of a marking technique on individual survival and natural development. Mark-recapture was performed with pitfall trapping in forestry rides representing two corridors and two primary open habitats. 700 spiders were marked individually and released in June and July 2010. 314 marked spiders were recaptured. Spiders showed greater dispersal distance in corridor than in open habitat. Furthermore, daily dispersal distance in corridor was up to 50 m day-1. Marking showed minimal to no effect on spider survival and natural reproductive development under laboratory condition. These results suggest that forestry rides acted as a corridor when the ride was bounded by unsuitable matrix and marking can be used as a tool for dispersal study.
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