Data from: Long-term stoichiometry and fates highlight animal egestion as nutrient repackaging, not recycling, in aquatic ecosystems
1. Animal defecation, or egestion, is a pronounced transformation of organic matter in many ecosystems. However, because egesta have been presumed recalcitrant and low-nutrient, their significance and variability as an animal nutrient flux in aquatic settings - especially relative to mineralization...
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fttriple:oai:gotriple.eu:50|dedup_wf_001::8a60df36b79f605feda69936db02b03a 2023-05-15T16:30:14+02:00 Data from: Long-term stoichiometry and fates highlight animal egestion as nutrient repackaging, not recycling, in aquatic ecosystems Halvorson, Halvor M. Hall, Delaney J. Evans-White, Michelle A. 2018-03-06 https://doi.org/10.5061/dryad.pp700 undefined unknown http://dx.doi.org/10.5061/dryad.pp700 https://dx.doi.org/10.5061/dryad.pp700 lic_creative-commons oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:114526 10.5061/dryad.pp700 oai:easy.dans.knaw.nl:easy-dataset:114526 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 Life sciences medicine and health care Allocapnia Tipulidae Faeces macroinvertebrates detritivores streams Asellidae Tipula fine particulate organic matter (FPOM) Capniidae Lirceus Ecological stoichiometry Greenland Arkansas envir geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2018 fttriple https://doi.org/10.5061/dryad.pp700 2023-01-22T16:52:02Z 1. Animal defecation, or egestion, is a pronounced transformation of organic matter in many ecosystems. However, because egesta have been presumed recalcitrant and low-nutrient, their significance and variability as an animal nutrient flux in aquatic settings - especially relative to mineralization via excretion - are poorly known. 2. We compared carbon (C), nitrogen (N), and phosphorus (P) dynamics over short- to long-term (up to 107 days) microbial decomposition of egesta from the aquatic shredders Allocapnia spp., Lirceus spp., and Tipula spp. fed low- or high-P content Platanus occidentalis litter to investigate roles of egesta in aquatic nutrient dynamics. 3. Tipula produced N- and P-deplete egesta of higher N:P compared to Lirceus and Allocapnia, and high-P diets increased egesta P content compared to low-P diets. Despite measurable C losses to decomposition, these differences in nutrient content persisted through decomposition, showing diet and species control both immediate and long-term properties of egested particles. 4. Egesta switched between uptake and release of dissolved phosphorus and ammonium during decomposition, and exhibited consistent net N uptake as nitrate-nitrite. Across species and diets, lower N:P egesta tended to exhibit greater uptake of dissolved inorganic N, suggesting P enrichment of egesta drove stronger dissolved N demand by decomposer microbes. 5. Shredder egesta exhibit stable nutrient contents long-term and, counter to assumptions that they are negligible or minor net sources, can be strong, extended sinks of dissolved inorganic nutrients. Future studies should consider contrasts between animal nutrient fluxes as excretion, which facilitates nutrient recycling via mineralization, versus egestion, which slows nutrient recycling via organic nutrient repackaging and can create sinks of dissolved nutrients. Egesta dissolved nutrient release, elemental contents, and respiration over time.Data are divided among 3 sheets. The first sheet gives nutrient release recorded on each ... Dataset Greenland Unknown Greenland |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Life sciences medicine and health care Allocapnia Tipulidae Faeces macroinvertebrates detritivores streams Asellidae Tipula fine particulate organic matter (FPOM) Capniidae Lirceus Ecological stoichiometry Greenland Arkansas envir geo |
spellingShingle |
Life sciences medicine and health care Allocapnia Tipulidae Faeces macroinvertebrates detritivores streams Asellidae Tipula fine particulate organic matter (FPOM) Capniidae Lirceus Ecological stoichiometry Greenland Arkansas envir geo Halvorson, Halvor M. Hall, Delaney J. Evans-White, Michelle A. Data from: Long-term stoichiometry and fates highlight animal egestion as nutrient repackaging, not recycling, in aquatic ecosystems |
topic_facet |
Life sciences medicine and health care Allocapnia Tipulidae Faeces macroinvertebrates detritivores streams Asellidae Tipula fine particulate organic matter (FPOM) Capniidae Lirceus Ecological stoichiometry Greenland Arkansas envir geo |
description |
1. Animal defecation, or egestion, is a pronounced transformation of organic matter in many ecosystems. However, because egesta have been presumed recalcitrant and low-nutrient, their significance and variability as an animal nutrient flux in aquatic settings - especially relative to mineralization via excretion - are poorly known. 2. We compared carbon (C), nitrogen (N), and phosphorus (P) dynamics over short- to long-term (up to 107 days) microbial decomposition of egesta from the aquatic shredders Allocapnia spp., Lirceus spp., and Tipula spp. fed low- or high-P content Platanus occidentalis litter to investigate roles of egesta in aquatic nutrient dynamics. 3. Tipula produced N- and P-deplete egesta of higher N:P compared to Lirceus and Allocapnia, and high-P diets increased egesta P content compared to low-P diets. Despite measurable C losses to decomposition, these differences in nutrient content persisted through decomposition, showing diet and species control both immediate and long-term properties of egested particles. 4. Egesta switched between uptake and release of dissolved phosphorus and ammonium during decomposition, and exhibited consistent net N uptake as nitrate-nitrite. Across species and diets, lower N:P egesta tended to exhibit greater uptake of dissolved inorganic N, suggesting P enrichment of egesta drove stronger dissolved N demand by decomposer microbes. 5. Shredder egesta exhibit stable nutrient contents long-term and, counter to assumptions that they are negligible or minor net sources, can be strong, extended sinks of dissolved inorganic nutrients. Future studies should consider contrasts between animal nutrient fluxes as excretion, which facilitates nutrient recycling via mineralization, versus egestion, which slows nutrient recycling via organic nutrient repackaging and can create sinks of dissolved nutrients. Egesta dissolved nutrient release, elemental contents, and respiration over time.Data are divided among 3 sheets. The first sheet gives nutrient release recorded on each ... |
format |
Dataset |
author |
Halvorson, Halvor M. Hall, Delaney J. Evans-White, Michelle A. |
author_facet |
Halvorson, Halvor M. Hall, Delaney J. Evans-White, Michelle A. |
author_sort |
Halvorson, Halvor M. |
title |
Data from: Long-term stoichiometry and fates highlight animal egestion as nutrient repackaging, not recycling, in aquatic ecosystems |
title_short |
Data from: Long-term stoichiometry and fates highlight animal egestion as nutrient repackaging, not recycling, in aquatic ecosystems |
title_full |
Data from: Long-term stoichiometry and fates highlight animal egestion as nutrient repackaging, not recycling, in aquatic ecosystems |
title_fullStr |
Data from: Long-term stoichiometry and fates highlight animal egestion as nutrient repackaging, not recycling, in aquatic ecosystems |
title_full_unstemmed |
Data from: Long-term stoichiometry and fates highlight animal egestion as nutrient repackaging, not recycling, in aquatic ecosystems |
title_sort |
data from: long-term stoichiometry and fates highlight animal egestion as nutrient repackaging, not recycling, in aquatic ecosystems |
publishDate |
2018 |
url |
https://doi.org/10.5061/dryad.pp700 |
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Greenland |
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Greenland |
genre |
Greenland |
genre_facet |
Greenland |
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oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:114526 10.5061/dryad.pp700 oai:easy.dans.knaw.nl:easy-dataset:114526 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 |
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http://dx.doi.org/10.5061/dryad.pp700 https://dx.doi.org/10.5061/dryad.pp700 |
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lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.pp700 |
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