Collembolan communities show distinct edge-effects in a fragmented hardwood floodplain ecotone.
| Autor: | Marx, Michael Thomas |
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| Další autoři: |
Eisenbeis, Gerhard, 1943-
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| Jazyk: | angličtina |
| Předmět: | |
| Druh dokumentu: | Non-fiction |
| ISSN: | 1211-376X |
| Abstrakt: | Abstract: Investigations on edge-effects in collembolan communities are quite rare. For this reason from October 2007 until May 2008 pitfall traps were used to determine possible edge-effects on epedaphic springtail communities on a small fragmented hardwood floodplain, the peripheral area of the hardwood floodplain and two adjacent softwood floodplains. The hardwood floodplain was additionally divided into three sections each at a different distance from the river Rhine. Altogether 10148 individuals belonging to 15 families and 51 species were caught. Different dominance-based, species-based and combined similarity indices were used to measure differences between the collembolan communities in neighbouring areas. There were very high species-based and dominance-based similarities between the three sections on the hardwood floodplain. In contrast, the similarity between the three hardwood floodplain sections and the adjacent softwood floodplains was very low, due to the high incidence of flood in softwood floodplains. The dominance-based and combined similarity indices showed strong differences between the forest edge and the hardwood floodplain sections, although the species-based indices indicate a high similarity. In the peripheral area Lepidocyrtus cyaneus Tullberg, 1871, which prefers open habitats, was eudominant. In the hardwood floodplain this species showed only sporadic to recedent dominance values. |
| Databáze: | Katalog Knihovny AV ČR |
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