Invasive spiders

Another project concerned invasive spiders in Maine.  A linyphiid spider, Linyphia triangularis, is well established along the Maine coast.  Graduate student Jeremy Houser focused on its effect on native species for his dissertation. 

Houser, J. D., A. Porter, H. Ginsberg, and E.M. Jakob. In press. The effect of agonistic competitive interactions between invasive and native sheet-web spiders. Canadian Journal of Zoology.

Houser, J.D., H. Ginsberg, and E. M. Jakob.  2014. Competition between introduced and native spiders (Araneae: Linyphiidae). Biological Invasions 16:2479-2488.Jakob, E. M., A. H. Porter, H. Ginsberg, J. V. Bednarski, and J. Houser.  2011.  A four-year study of invasive and native spiders in Maine.  Canadian Journal of Zoology 89:668-677.

Bednarski, J., H. Ginsberg and E. Jakob.  2010.  Competitive interactions between a native spider (Frontinella communis, Araneae: Linyphiidae) and an invasive spider (Linyphia triangularis, Araneae: Linyphiidae).  Biological Invasions 12:905-912.

Houser, J., D. Jennings, and E. Jakob.  2005.  Predation by Argyrodes trigonum on Linyphia triangularis, an invasive sheet-web weaver in coastal Maine.  Journal of Arachnology 33:193-195.

  • We studied invasive spiders in Acadia National Park. They are more common in coastal habitat.
  • Multiple webs of Linyphia<\i> on the same tree are common.
  • Jeremy Houser (an old picture!) at his study site in Acadia National Park.

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