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Kinetics of exsheathment of infective ovine and bovine strongylid larvae in vivo and in vitro
TLDR
The RUSITEC system represents a valid system for studying the kinetics of exsheathment of strongylid nematodes under in vitro conditions and the results confirm that ex sheathment generally occurs in the part of the gastrointestinal tract immediately anterior to the habitat of the adult parasite.
Si cycling in a forest biogeosystem – the importance of transient state biogenic Si pools
The relevance of biological Si cycling for dissolved silica (DSi) export from terrestrial biogeosystems is still in debate. Even in systems showing a high content of weatherable minerals, like
Primary immigration and succession of soil organisms on reclaimed opencast coal mining areas in eastern Germany
Abstract Immigration to and colonisation of recultivated opencast coal mining areas by soil organisms were investigated in eastern Germany during the period 1996–1998 in freshly exposed substrates
Dynamics and drivers of the protozoic Si pool along a 10-year chronosequence of initial ecosystem states
Abstract The size and dynamics of biogenic silicon (BSi) pools influence silicon (Si) fluxes from terrestrial to aquatic ecosystems. The research focus up to now was on the role of plants in Si
THE USE OF DOSED AND HERBAGE N-ALKANES AS MARKERS FOR THE DETERMINATION OF INTAKE, DIGESTIBILITY, MEAN RETENTION TIME AND DIET SELECTION IN GALAPAGOS TORTOISES (GEOCHELONE NIGRA)
TLDR
Estimates of diet composition using alkanes in individual animals accurately reflected directly-observed composition and confirms that n-alkanes may be used for determining diet intake and the passage through the gut of the particulate digesta phase, and for estimating diet composition.
Soil Testate Amoebae and Diatoms as Bioindicators of an Old Heavy Metal Contaminated Floodplain in Japan
TLDR
The observed decrease in individual numbers due to heavy metal pollution resulted in a considerable decline in protozoic (testate amoebae) and protophytic (pennate diatoms) silicon pools, suggesting that heavy metalpollution affects biogeochemical cycling in this system.
Biodiversity development of terrestrial testate amoebae: is there any succession at all?
TLDR
Cluster analysis of species inventory and abundances of numerous types of soil of different age highlight a classification of amoebal communities towards regional influences rather than local successional stages of vegetation, corroborate the fact that belowground communities operate differently from plant communitites in that they are characterised by additive invasion and not by interspecific competition.
Development o of s soil f fauna a at m mine s sites d during 46 y years a after a afforestation
Summary At the afforested overburden heap „Langteichhalde“ (lignite mining district Berzdorf, Eastern Germany) a long-term study of the soil fauna (since 1961) was completed by new investigations
Influence of different dietary calcium levels on the digestibility of Ca, Mg, and P in captive-born juvenile Galapagos giant tortoises (Geochelone nigra)
TLDR
It is indicated that higher Ca concentrations in the diet led to an increased apparent digestibility of Ca, Mg, and P, and the influence of an increased fat and decreased fiber content in diet III concerning digestibility is discussed.
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