D. Sandmann

Publications40
h-index11
Citations459
Highly Influential Citations10
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Tropical Andean Forests Are Highly Susceptible to Nutrient Inputs—Rapid Effects of Experimental N and P Addition to an Ecuadorian Montane Forest
TLDR
It is shown that Neotropical montane rainforests respond rapidly to moderate additions of N and P, which suggest marked changes in species composition and diversity of these forests by nutrient inputs in the long term. Expand
New taxa and new records of oribatid mites of the family Galumnidae (Acari: Oribatida) from Ecuador.
The new genus Neoctenogalumna gen. nov. with Ctenogalumna moresonensis Engelbrecht, 1972 as a type species and the new subgenus Neoctenogalumna (Paractenogalumna) subgen. nov. with Neoctenogalumna… Expand
Litter mixture effects on decomposition in tropical montane rainforests vary strongly with time and turn negative at later stages of decay
TLDR
Plant species diversity appears to act as a major driver for decomposition processes in tropical montane rainforest ecosystems, highlighting the need for increasing plant conservation efforts to protect ecosystem functioning of this threatened biodiversity hotspot. Expand
More sex at higher altitudes: Changes in the frequency of parthenogenesis in oribatid mites in tropical montane rain forests
TLDR
The data support the view that the reproductive mode of soil animals is predominantly controlled by the availability and accessibility of resources. Expand
Three new species of oribatid mites (Acari, Oribatida) from Ecuador
TLDR
Three new oribatid mite species are described from Ecuador and are morphologically similar to Ampullobates nigriclavatus Grandjean, but differs from the latter by the morphology of the lamellar, exuvial and some epimeral setae, sensilli, and the size of the interlamellar and exobothridial setae. Expand
Fauna: Composition and Function
Nutrient Additions Affecting Matter Turnover in Forest and Pasture Ecosystems
Nutrient inputs into ecosystems of the tropical mountain rainforest region are projected to further increase in the next decades. To investigate whether important ecosystem services such as nutrient… Expand
Moderate changes in nutrient input alter tropical microbial and protist communities and belowground linkages
TLDR
The results suggest that the decomposer system of tropical montane rainforests significantly responds to even moderate changes in nutrient inputs with the potential to cause major ramifications of the whole ecosystem including litter decomposition and plant growth. Expand
Consequences of exclusion of precipitation on microorganisms and microbial consumers in montane tropical rainforests
TLDR
Overall, the results show that microorganisms and testate amoebae rapidly respond to a reduction in precipitation, which implies that precipitation and soil moisture in tropical rainforests are the main factors regulating decomposition and nutrient turnover. Expand
Leaf Litter Chemistry Drives the Structure and Composition of Soil Testate Amoeba Communities in a Tropical Montane Rainforest of the Ecuadorian Andes
TLDR
The data show that leaf litter chemistry overrides leaf litter richness in structuring testate amoeba communities, and high litter nitrogen and low lignin concentrations are indicators of high litter quality for testateAmoebae density and species richness. Expand
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