Their small distributions and possibility for future habitat loss make these species of conservation

concern. The taxonomic status of a recently described species Bradypodion nkandlae (Raw & Brothers 2008) is found to be con-specific with B. nemorale and is herewith synonymised.”
“Forest ecosystems in Europe have been affected by human activities for many centuries. Here we investigate, if current forest soil organic carbon stocks are influenced not only by present ecological conditions and land use, but also by land management in the past. Based on the forest management history of the Hainich-Dun region a total of 130 inventory plots were selected in age-class forest and selectively cut forests under present management practice. The age-class forest originated from (1) former www.selleckchem.com/products/citarinostat-acy-241.html coppice-with-standards, (2) former selectively cut forests and (3) afforestation. The selectively cut forest Smoothened Agonist molecular weight contains “early regulated” forest where selective cutting has been practised for centuries, and forest, which was managed as coppice-with-standards through the 18th and the 19th centuries. We hypothesise that past management influences present soil organic carbon stocks. Density fractionation of soils in three physical fractions (HF: heavy fraction, o-LF: occluded light fraction, f-LF: free light fraction)

was carried out to increase the probability of detecting long-lasting effects of management history. TPX-0005 manufacturer No detectable differences in soil organic carbon (SOC) stocks, as measured in kg In-2 ground area, of the mineral soil and the heavy fractions, were found between present and historical forest management types (average total organic carbon (OC) stocks of mineral soil: 9.7 +/- 2.3 kg m(-2); average OC stocks of the organic layer: 0.5 +/- 0.3 kg m(-2); average total inorganic carbon (IC) stocks of mineral soil:

5.0 +/- 3.7 kg m(-2)). The variation of samples was overlapping. There was no consistent trend with management history. The upper mineral soil (0-30 cm) contained about 74% of total SOC, with f-LF contributing 24% in 0-10 cm and 20% in 10-30 cm, and o-LF 9% in 0-10 cm and 6% in 10-30 cm. The HF contained 85% (0-10 cm) and 86% (10-30 cm) of SOC stocks in the bulk soil. There was a significant decrease of total SOC stocks in the 0-10 and 10-30 cm depth increment with increasing abundance of beech. Mean C-14 concentrations in the HF were 102.0 pMC in 0-10 cm, and 93.4 pMC in 10-30 cm, corresponding to a mean 14C age of around 100 years and 550 years, respectively. Modelling C-dynamics based on the present measurements reveals that disturbances depleting 50% of soil C-stocks would equilibrate after 80 years. Thus, there is no memory effect of 19th century forest management. We conclude that past and present management has no detectable effect on present SOC. (C) 2012 Elsevier B.V. All rights reserved.