Egy heterogén erdőállomány avarlakó szárazföldi ászkarák-közösségeinek (Isopoda: Oniscidea) összehasonlítása - Comparison of litter inhabiting terrestrial isopod (Isopoda: Oniscidea) communities of a heterogenious woodland

Otártics, Máté Zsolt and Juhász, Nikolett and Üst, Norbert and Farkas, Sándor (2014) Egy heterogén erdőállomány avarlakó szárazföldi ászkarák-közösségeinek (Isopoda: Oniscidea) összehasonlítása - Comparison of litter inhabiting terrestrial isopod (Isopoda: Oniscidea) communities of a heterogenious woodland. NATURA SOMOGYIENSIS (24). pp. 61-70. ISSN 1587-1908 (print); 2062-9990 (online)

Preview

Text 29e6fa6023d27b086ade909df67bd0a9.pdf Available under License Creative Commons Attribution. Download (2MB) | Preview

Abstract

The aim of our research was an ecofaunistic investigation of isopod communities living in different habitats (three different oak woods, two acacia woods, and a pine-grove) of a heterogeneous forest. In particular, we described and compared the species composition, the dominance structure and diversity indices of the communities (Shannon, Rényi) in the habitats. The researched area (“Községi forest”) situated near the Deseda-lake (Kaposvár, Somogy County). Nine Barber pitfall traps were laid in three parallel lines in six sampling patches. The traps had been working from March to November, 2011 and were emptied eleven times during this interval. The traps caught a total of 8769 isopods belonging to 10 species. Protracheonicus politus had the largest (80.21%) proportion of the total sample so this species is the dominant woodlouse of the Községi forest. The ratio of Porcellium collicola (12.77%), Trachelipus rathkii (4.56%) and Trachelipus ratzeburgii (1.96%) were also noticeable. The amount of the other species was low (1-50 specimens). Some of these species (Haplophthalmus danicus, Hyloniscus riparius, Trichoniscus provisorius) live in the soil or in decaying trees so usually they are under-represented in pitfall samples. An average of six species was found in each habitat. The highest numbers of species (7) occurred in the acacia forests and in an oak wood habitat, while the smallest (5) in another oak wood by the lake. The species compositions of an acacia and an oak wood were identical using Sørensen similarity index. The isopod community of the pine-grove was also similar. The sample of the ruderal weed vegetation differed in the highest degree from the woody habitats. By the results, the isopod community could be very similar in different woody habitats. We found the highest Shannon diversity values in the weedy habitat. The Rényi diversity ordering gave the same result.

Actions (login required)

Edit Item