Wpływ stopnia izolacji kęp olsowych na aktywność i różnorodność epigeicznych bezkręgowców
THE IMPACT OF ISOLATION DEGREE OF THE ALDER TUSSOCKS ON ACTIVITY AND DIVERSITY OF THE EPIGEIC INVERTEBRATES
Languages of publication
Activity and diversity of epigeic invertebrates were studied in 2004, in alder wood (Alnus glutinosa-Carex elata association). There were chosen: fragment of alder wood and 23 alder tussocks that average surface was 0.27m2. There were installed also 16 artificial tussocks: 4 of them were the same size as natural, and other 12 were smaller, 0,1m2 in size. The average hight of tussockw was 0.4m. Distance between particular tussocks varied from 1 to 2m.Tussocks were placed 3, 5, 7, 9 and 11m from the fragment of the alder wood. Material was collected by using pitfall traps. Samples were taken every 7 or 14 days twice in the season: when tussocks were or were not isolated by water. The distance from the alder wood did not influence on activity and diversity of epigeic invertebrates on tussocks. Saprophagous: Isopoda and Collembola and predators: Araneae and Carabidae were the most abundant in the samples.
Publication order reference