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Data from: Experimental N and P additions alter stream macroinvertebrate community composition via taxon‐level responses to shifts in detrital resource stoichiometry
- 负责人：
- Demi, Lee
- DOI：
- doi:10.5061/dryad.f8qm2d7
- 摘要：
- t have been lacking to date. 2. We analyzed patterns of macroinvertebrate community composition in five detritus-based headwater streams subject
Data from: A molecular gut content study of Themisto abyssorum (Amphipoda) from Arctic hydrothermal vent and cold seep systems
- 负责人：
- DOI：
- doi:10.5061/dryad.tm1k0
- 摘要：
- the stomach content. We found a wide range of organisms including micro-eukaryotes, metazoans and detritus. Themisto abyssorum specimens from Loki's Castle had the high
Data from: Parental and offspring larval diets interact to influence life history traits and dengue virus infection of offspring in Aedes aegypti
- 负责人：
- DOI：
- doi:10.5061/dryad.6c78sn1
- 摘要：
- , yellow fever and Zika. Parents were raised on either high or low larval detritus inputs with subsequent offspring being divided into two groups, one receiving
Data from: Burrowing detritivores regulate nutrient cycling in a desert ecosystem
- 负责人：
- DOI：
- doi:10.5061/dryad.6nq98f5
- 摘要：
- plant detritus from the desert surface, using litter-baskets with different mesh sizes that allow selective entry of micro-, meso- or macro-fauna. We als
Data from: Shelter availability mediates decorating in the majoid crab, Camposcia retusa
- 负责人：
- Brooker, Rohan
- DOI：
- doi:10.5061/dryad.602hq
- 摘要：
- and filamentous algae, and detritus. Decorations were primarily distributed on the carapace and hind walking legs which may reflect exoskeleton morphology. Howeve
Data from: Feces nitrogen release induced by different large herbivores in a dry grassland
- 负责人：
- Wang, Jingzhi
- DOI：
- doi:10.5061/dryad.7hn64
- 摘要：
- of plant production as well as the amounts and quality of plant litter and animal wastes. The generalization that the relative quality of detritus inputs is enhanced
Data from: The ichnogenus Tubotomaculum: an enigmatic pellet-filled structure from Upper Cretaceous to Miocene deep-marine deposits of southern Spain
- 负责人：
- DOI：
- doi:10.5061/dryad.7g902
- 摘要：
- when organic detritus was scarce is suggested. The association with chemoautothrophic bacteria in modern analogs of Tubotomaculum provides a crucial piece
Data from: Necrobiome framework for bridging decomposition ecology of autotrophically and heterotrophically derived organic matter
- 负责人：
- Benbow, Mark
- DOI：
- doi:10.5061/dryad.pp5bs35
- 摘要：
- Decomposition contributes to global ecosystem function by contributing to nutrient recycling, energy flow and limiting biomass accumulation. The decomposer organisms influencing this process form diverse, complex, and highly dynamic communities that often specialize on different plant or animal resources. Despite performing the same net role, there is a need to conceptually synthesize information on the structure and function of decomposer communities across the spectrum of dead plant and animal resources. A lack of synthesis has limited cross-disciplinary learning and research in important areas of ecosystem and community ecology. Here we expound on the ‘necrobiome’ concept and develop a framework describing the decomposer communities and their interactions associated with plant and animal resource types within multiple ecosystems. We outline the biotic structure and ecological functions of the necrobiome, along with how the necrobiome fits into a broader landscape and ecosystem context. The expanded necrobiome model provides a set of perspectives on decomposer communities across resource types, and conceptually unifies plant and animal decomposer communities into the same framework, while acknowledging key differences in processes and mechanisms. This framework is intended to raise awareness among researchers, and advance the construction of explicit, mechanistic hypotheses that further our understanding of decomposer community contributions to biodiversity, the structure and function of ecosystems and global nutrient recycling and energy flow.
Data from: The dominant detritus-feeding invertebrate in arctic peat soils derives its essential amino acids from gut symbionts
- 负责人：
- Larsen, Thomas
- DOI：
- doi:10.5061/dryad.6f798
- 摘要：
- Supplementation of nutrients by symbionts enables consumers to thrive on resources that might otherwise be insufficient to meet nutritional demands. Such nutritional subsidies by intracellular symbionts has been well studied; however, supplementation of de novo synthesized nutrients to hosts by extracellular gut symbionts is poorly documented, especially for generalists with relatively undifferentiated intestinal tracts. Although gut symbionts facilitate degradation of resources that would otherwise remain inaccessible to the host, such digestive actions alone cannot make up for dietary insufficiencies of macronutrients such as essential amino acids (EAA). Documenting whether gut symbionts also function as partners for symbiotic EAA supplementation is important because the question of how some detritivores are able to subsist on nutritionally insufficient diets has remained unresolved. To answer this poorly-understood nutritional aspect of symbiont-host interactions, we studied the enchytraeid worm, a bulk soil feeder that thrives in arctic peatlands. In a combined field and laboratory study, we employed stable isotope fingerprinting of amino acids to identify the biosynthetic origins of amino acids to bacteria, fungi and plants in enchytraeids. Enchytraeids collected from arctic peatlands derived more than 80% of their EAA from bacteria. In a controlled feeding study with the enchytraeid Enchytraeus crypticus, EAA derived almost exclusively from gut bacteria when the worms fed on higher fiber diets, whereas most of the enchytraeids' EAA derived from dietary sources when fed on lower fiber diets. Our gene sequencing results of gut microbiota showed that the worms harbor several taxa in their gut lumen absent from their diets and substrates. Almost all gut taxa are candidates for EAA supplementation because almost all belong to clades capable of biosynthesizing EAA. Our study provides the first evidence of extensive symbiotic supplementation of EAA by microbial gut symbionts, and demonstrate that symbiotic bacteria in the gut lumen appear to function as partners for both symbiotic EAA supplementation as well as for digestion of insoluble plant fibers.
Data from: Free-living bacterial communities associated with tubeworm (Ridgeia piscesae) aggregations in contrasting diffuse flow hydrothermal vent habitats at the Main Endeavour Field, Juan de Fuca Ridge
- 负责人：
- DOI：
- doi:10.5061/dryad.453f3
- 摘要：
- ). Eight samples of particulate detritus were recovered from paired tubeworm grabs from four vent sites. Most sequences (454 tag and Sanger methods) wer
