Soil macrofauna order diversity and abundance under improved fallows and organic matter transfer system in Zimbabwe

2014 ◽  
Vol 52 (4) ◽  
pp. 506-513 ◽  
Author(s):  
Misi A. Manyanga ◽  
Paramu L. Mafongoya ◽  
Tony P. Tauro
Keyword(s):  
Organic Matter ◽  
Transfer System ◽  
Improved Fallows ◽  
Soil Macrofauna ◽  
Matter Transfer

Termitivore or detritivore? A quantitative investigation into the diet of the East African caecilian Boulengerula taitanus (Amphibia: Gymnophiona: Caeciliidae)

2004 ◽  
Vol 54 (1) ◽  
pp. 45-56 ◽  
Author(s):  
G. John Measey ◽  
Olivier Gaborieau
Keyword(s):  
Organic Matter ◽  
Stomach Contents ◽  
Gut Contents ◽  
Generalist Predators ◽  
East African ◽  
Quantitative Investigation ◽  
Soil Macrofauna ◽  
Taita Hills ◽  
Specialist Predators ◽  
African Genus

AbstractMost caecilians are thought to be generalist predators of soil ecosystem engineers (earthworms, termites and ants), but it has been suggested that members of the East African genus Boulengerula are specialist predators. Surprisingly, in the only detailed study of diet of any Boulengerula, the authors speculated that B. taitanus is partly detritivorous, based on the large amount of organic matter found in the alimentary canal. Here we test the conflicting hypotheses that B.taitanus is a termitivore or detritivore, using the stomach and gut contents of 47 specimens collected in the Taita Hills, Kenya. Termites and earthworms contribute most significantly to diet by number and mass, respectively. These constitute the major dietary items, together with dipteran larvae and other soil macrofauna. Contents of the intestine are mostly soil and organic matter originating from prey items. The mass content of the intestines averages 69% of total gut contents, and is significantly greater than identifiable stomach contents. The null hypotheses that B. taitanus is a generalist and a predator are not rejected.

Role of mysid seasonal migrations in the organic matter transfer in the Curonian Lagoon, south-eastern Baltic Sea

2008 ◽  
Vol 80 (2) ◽  
pp. 225-234 ◽  
Author(s):  
Jūratė Lesutienė ◽  
Elena Gorokhova ◽  
Zita R. Gasiūnaitė ◽  
Artūras Razinkovas
Keyword(s):  
Organic Matter ◽  
Baltic Sea ◽  
Curonian Lagoon ◽  
South Eastern ◽  
Seasonal Migrations ◽  
Matter Transfer ◽  
Eastern Baltic

scholarly journals Impact of the bird-manure caused eutrophication on the abundance and diversity of chironomid larvae (Diptera; Chironomidae) in lakes of the Bolshoy Aynov Island (Russia, Barents Sea)

2017 ◽  
pp. 72-75
Author(s):  
Viktor Baranov ◽  
Ivan Nekhaev
Keyword(s):  
Organic Matter ◽  
Species Richness ◽  
Barents Sea ◽  
Chironomid Larvae ◽  
Bird Colony ◽  
Large Bird ◽  
Perceived Impact ◽  
Abundance And Diversity ◽  
Northern Russia ◽  
Matter Transfer

We report on the perceived impact of bird faeces as an agent of organic matter transfer on the density and species richness of the Chironomidae in the lakes of the Bolshoy Aynov island (Barents Sea, Northern Russia). In total we recorded 15 species of Chironomidae. Highest species richness and specimen numbers were recorded in Lake Severnoe, closest to the large bird colony.

Mechanism for the small-scale movement of carbon among estuarine habitats: organic matter transfer not crab movement

Oecologia ◽  
2006 ◽  
Vol 148 (1) ◽  
pp. 88-96 ◽  
Author(s):  
Michaela A. Guest ◽  
Rod M. Connolly ◽  
Shing Y. Lee ◽  
Neil R. Loneragan ◽  
Mark J. Breitfuss
Keyword(s):  
Organic Matter ◽  
Small Scale ◽  
Matter Transfer

scholarly journals Seagrass organic matter transfer in Posidonia oceanica macrophytodetritus accumulations

2018 ◽  
Vol 212 ◽  
pp. 73-79 ◽  
Author(s):  
Remy François ◽  
Mascart Thibaud ◽  
De Troch Marleen ◽  
Loïc N. Michel ◽  
Lepoint Gilles
Keyword(s):  
Organic Matter ◽  
Posidonia Oceanica ◽  
Matter Transfer

X-ray computed microtomography to predict CO2 emissions in casts of 6 earthworm species (Lumbricidae)

2020 ◽  
Author(s):  
Guillaume Le Mer ◽  
Nicolas Bottinelli ◽  
Marie-France Dignac ◽  
Arnaud Mazurier ◽  
Laurent Caner ◽  
...  
Keyword(s):  
Organic Matter ◽  
Physicochemical Properties ◽  
Plant Litter ◽  
Ecological Groups ◽  
C Mineralization ◽  
Aporrectodea Caliginosa ◽  
Soil Macrofauna ◽  
X Ray ◽  
Earthworm Species ◽  
The Impact

<p>Plant residues are the main precursors of soil organic matter (SOM) and soil macrofauna is an important driver of ecological processes involved in the sequestration of carbon (C) in soils. In particular, earthworms are one of the largest contributors to soil matter formation in most terrestrial ecosystems. In the short term, they may increase the rate of OM turnover by mineralization, fragmentation and stimulation of microbial activity. On the other hand they may reduce OM degradability by forming stable aggregates and organo-mineral complexes protecting C from mineralization for longer time scales. Earthworms are classified in three main ecological groups depending on their behaviors and on their morpho-functional traits. However, their intra- or inter- ecological group effect on C stabilization needs to be investigated.</p><p>In this study, we explored the impact of earthworm diversity (composed of several species belonging to different ecological groups) on the physicochemical properties of casts, related to CO<sub>2</sub> emissions. We hypothesized that C mineralization in casts would be related to the ecological category.</p><p>We studied casts of 6 species (2 anecic species: Lumbricus terrestris & Aporectodea nocturna, 2 endogeic species: Allolobophora icterica & Aporrectodea caliginosa and 2 epigeic species: Lumbricus castaneus & Eisenia fetida) produced in a silty subsoil with addition of plant litter. Casts were incubated for 140 days under similar laboratory conditions. We measured CO<sub>2</sub> mineralization, pH, elemental composition and physical cast organization by X-ray microtomography (resolution of 9.49 µm voxel) at 7, 42, and 140 days.</p><p>Our results showed lower CO<sub>2</sub> mineralization in aggregates produced without earthworms than all earthworm casts. In the beginning of the incubation casts showed similar CO<sub>2</sub> emissions and specific physicochemical properties as OC content and pH. After 140 days, CO<sub>2</sub> emissions were earthworm species specific with Aporectodea nocturna showing highest CO<sub>2</sub> emissions, and Aporrectodea caliginosa the lowest values. Microtomographic analyses showed that this is due to an increase of cast porosity with increasing cast age coupled with a concurrent decrease particulate organic matter (POM) structures. Our first results seemed to suggest that earthworms belonging to the same ecological category influence similarly C mineralization through their impact on the cast organization.</p>

Organic matter transfer in Lake Superior's food web: Insights from bulk and molecular stable isotope and radiocarbon analyses

2015 ◽  
Vol 61 (1) ◽  
pp. 149-164 ◽  
Author(s):  
B. R. Kruger ◽  
J. P. Werne ◽  
D. K. Branstrator ◽  
T. R. Hrabik ◽  
Y. Chikaraishi ◽  
...  
Keyword(s):  
Organic Matter ◽  
Stable Isotope ◽  
Food Web ◽  
Matter Transfer

Soil fertility management: Impacts on soil macrofauna, soil aggregation and soil organic matter allocation

2011 ◽  
Vol 48 (1) ◽  
pp. 53-62 ◽  
Author(s):  
F.O. Ayuke ◽  
L. Brussaard ◽  
B. Vanlauwe ◽  
J. Six ◽  
D.K. Lelei ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Fertility ◽  
Soil Aggregation ◽  
Soil Fertility Management ◽  
Soil Macrofauna ◽  
Fertility Management

scholarly journals Influence of soil macrofauna on soil organic carbon content

2018 ◽  
Vol 29 (4) ◽  
pp. 20-25
Author(s):  
Katarzyna Szyszko-Podgórska ◽  
Marek Kondras ◽  
Izabel Dymitryszyn ◽  
Anita Matracka ◽  
Mirosław Cimoch ◽  
...  
Keyword(s):  
Organic Matter ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Content ◽  
Significant Influence ◽  
Carbon Accumulation ◽  
Soil Invertebrate ◽  
Organic Carbon Content ◽  
Soil Macrofauna ◽  
Decomposition Of Organic Matter

Abstract Macrofauna plays a very important role in the functioning of the natural environment. It plays an important role in the decomposition of organic matter by mixing and crushing organic matter in soil. Invertebrate faeces influence the development of microorganisms and their dead bodies stimulate mineralization in the soil. They also influence the humification processes. The aim of the study was to determine the influence of macrofauna and litter distribution and the accumulation of organic carbon in soil. The study showed a significant influence of this thick animal on the processes taking place in the soil. Significant correlations were observed between the organic carbon content in the litter and the organic carbon content in the soil, macrofauna activity with litter decomposition and its influence on the organic carbon accumulation.

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