In this study I found that the preferences for clearcutting and post-windstorm habitat were significantly related to the body length of scuttle flies. Open-area habitats resulted from disturbance were settled by smaller, multivoltine and mostly sapro/mycophagous species of Phoridae. This observation is in accordance with the general rule concerning habitat stability-species size relationship (Kingsolver 2009). These small species of a relatively fast development times that dominate scuttle fly communities in clear-cuts, but also in areas after windstorm and buy CP673451 wildfire, are attracted by higher insolation and temperature, and also lower humidity

(Durska 1996, 2001, 2006, 2009; Chown and Gaston 2010; Durska et al. 2010). Similar results were obtained for carabids in Białowieża Primeval Forest, Pisz Forest and in the south of Sweden (Skłodowski 2006; Garbalińska and Skłodowski 2008; Tyler 2010). Dajoz (1998) buy AZD5582 reported a smaller mean size of species of Coleoptera in fire-damaged areas in California and Arizona. In turn, McAbendroth et al. (2005) found that both habitat fractal complexity and allometry selleck compound may control density-body size scaling in lentic macroinvertebrate communities. However, Hurd and Fagan (1992) found that in the cursorial spider community of herbaceous habitat the breadth of the distribution of adult body lengths was greater than in older woody stands. Those authors pointed out that a consequence of variation in

body sizes of generalist arthropod predators is the tendency of larger individuals “to eat smaller ones, which would give the larger bodied species an advantage when other preys were scarce”. In contrast, I detected that the dominant species in the old-growth stands, were of a larger-size than the dominant species in the habitats after disturbances. In my previous Tolmetin study (Durska 1996) the small-sized (mean length ≤1.35 mm) dominant in clear-cut and windstorm habitats, pyrophilous M. verralli was found only in a few individuals in the old-growth stand habitats. It is worth adding that this species also dominated in the scuttle fly communities after wildfires in the Castanea sativa forests

in the Swiss Alps (Prescher et al. 2002). Possibly, M. verralli is sensitive to shade and prefers exposure to the sun more than other scuttle flies (Durska 1996, 2001, 2006, 2009; Prescher et al. 2002; Żmihorski and Durska 2011). I have not found this species in scuttle fly material collected after a wildfire affecting hemiboreal forest in Tyresta near Stockholm (Durska et al. 2010). Probably, the range of this species does not reach the far north of Europe. High similarity of the scuttle fly communities found in clear-cuts and logged-windthow areas is not surprising as these two habitat types have common features. Both experience a considerable reduction in the density of standing and felled trees. As a consequence, semi-open habitats with increased insolation are created.