Data from: The influence of plant defensive chemicals, diet composition, and winter severity on the nutritional condition of a free-ranging, generalist herbivore
When consuming plants, herbivores must deal with both low nutritional quality from cell wall constituents and potentially toxic plant secondary metabolites, which are often inversely related. Herbivores that consume a highly nutritious, but chemically defended plant, may consume high levels of toxin...
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Data Archiving and Networked Services (DANS)
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Online Access: | https://doi.org/10.5061/dryad.8f973 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::187873140942236f9d9228d32566c7ee 2023-05-15T13:13:44+02:00 Data from: The influence of plant defensive chemicals, diet composition, and winter severity on the nutritional condition of a free-ranging, generalist herbivore Parikh, Grace L. Forbey, Jennifer Sorensen Robb, Brecken Peterson, Rolf O. Vucetich, Leah M. Vucetich, John A. 2020-07-04 https://doi.org/10.5061/dryad.8f973 undefined unknown Data Archiving and Networked Services (DANS) http://dx.doi.org/10.5061/dryad.8f973 https://dx.doi.org/10.5061/dryad.8f973 lic_creative-commons oai:easy.dans.knaw.nl:easy-dataset:94222 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:94222 10.5061/dryad.8f973 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 Life sciences medicine and health care Plant secondary metabolites Alces alces Herbivory envir socio Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2020 fttriple https://doi.org/10.5061/dryad.8f973 2023-01-22T16:53:37Z When consuming plants, herbivores must deal with both low nutritional quality from cell wall constituents and potentially toxic plant secondary metabolites, which are often inversely related. Herbivores that consume a highly nutritious, but chemically defended plant, may consume high levels of toxins that require energy for detoxification. Alternatively, herbivores may avoid consuming high levels of toxins by consuming a diverse diet that may be lower in overall nutritional quality. In this study, we assessed the relationship among nutritional restriction, detoxification and diet diversity in a free-ranging wild herbivore. We collected urine deposited in the snow (hereafter, snow-urine) and feces by free-ranging moose Alces americanus, a generalist browser, during winter. We used the ratio of urinary urea nitrogen to creatinine (UN:C), measured in snow-urine samples, as an indicator of nutritional restriction, and the ratio of glucuronic acid to creatinine (GA:C), as an indicator of investment in detoxification. We used microhistology to determine diet composition from fecal pellets. GA:C and UN:C were positively associated, suggesting that nutritional condition tends to be worse for individuals investing more in detoxification. We found, after accounting for the influence of winter severity, diet diversity and UN:C to be negatively related, suggesting that increasingly diverse diets were associated with improved nutritional condition. Overall, the most important predictor of UN:C was winter severity and proportion of diet comprised of balsam fir Abies balsamea. Physiological indicators of nutritional restriction tended to be worse during severe winters and among individuals that had consumed more balsam fir. These results highlight complex relationships among environmental conditions, foraging decisions, and costs of detoxification that can influence nutritional condition of herbivores. dryad_dataData used for analysis for manuscript and figures. Dataset Alces alces Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Life sciences medicine and health care Plant secondary metabolites Alces alces Herbivory envir socio |
spellingShingle |
Life sciences medicine and health care Plant secondary metabolites Alces alces Herbivory envir socio Parikh, Grace L. Forbey, Jennifer Sorensen Robb, Brecken Peterson, Rolf O. Vucetich, Leah M. Vucetich, John A. Data from: The influence of plant defensive chemicals, diet composition, and winter severity on the nutritional condition of a free-ranging, generalist herbivore |
topic_facet |
Life sciences medicine and health care Plant secondary metabolites Alces alces Herbivory envir socio |
description |
When consuming plants, herbivores must deal with both low nutritional quality from cell wall constituents and potentially toxic plant secondary metabolites, which are often inversely related. Herbivores that consume a highly nutritious, but chemically defended plant, may consume high levels of toxins that require energy for detoxification. Alternatively, herbivores may avoid consuming high levels of toxins by consuming a diverse diet that may be lower in overall nutritional quality. In this study, we assessed the relationship among nutritional restriction, detoxification and diet diversity in a free-ranging wild herbivore. We collected urine deposited in the snow (hereafter, snow-urine) and feces by free-ranging moose Alces americanus, a generalist browser, during winter. We used the ratio of urinary urea nitrogen to creatinine (UN:C), measured in snow-urine samples, as an indicator of nutritional restriction, and the ratio of glucuronic acid to creatinine (GA:C), as an indicator of investment in detoxification. We used microhistology to determine diet composition from fecal pellets. GA:C and UN:C were positively associated, suggesting that nutritional condition tends to be worse for individuals investing more in detoxification. We found, after accounting for the influence of winter severity, diet diversity and UN:C to be negatively related, suggesting that increasingly diverse diets were associated with improved nutritional condition. Overall, the most important predictor of UN:C was winter severity and proportion of diet comprised of balsam fir Abies balsamea. Physiological indicators of nutritional restriction tended to be worse during severe winters and among individuals that had consumed more balsam fir. These results highlight complex relationships among environmental conditions, foraging decisions, and costs of detoxification that can influence nutritional condition of herbivores. dryad_dataData used for analysis for manuscript and figures. |
format |
Dataset |
author |
Parikh, Grace L. Forbey, Jennifer Sorensen Robb, Brecken Peterson, Rolf O. Vucetich, Leah M. Vucetich, John A. |
author_facet |
Parikh, Grace L. Forbey, Jennifer Sorensen Robb, Brecken Peterson, Rolf O. Vucetich, Leah M. Vucetich, John A. |
author_sort |
Parikh, Grace L. |
title |
Data from: The influence of plant defensive chemicals, diet composition, and winter severity on the nutritional condition of a free-ranging, generalist herbivore |
title_short |
Data from: The influence of plant defensive chemicals, diet composition, and winter severity on the nutritional condition of a free-ranging, generalist herbivore |
title_full |
Data from: The influence of plant defensive chemicals, diet composition, and winter severity on the nutritional condition of a free-ranging, generalist herbivore |
title_fullStr |
Data from: The influence of plant defensive chemicals, diet composition, and winter severity on the nutritional condition of a free-ranging, generalist herbivore |
title_full_unstemmed |
Data from: The influence of plant defensive chemicals, diet composition, and winter severity on the nutritional condition of a free-ranging, generalist herbivore |
title_sort |
data from: the influence of plant defensive chemicals, diet composition, and winter severity on the nutritional condition of a free-ranging, generalist herbivore |
publisher |
Data Archiving and Networked Services (DANS) |
publishDate |
2020 |
url |
https://doi.org/10.5061/dryad.8f973 |
genre |
Alces alces |
genre_facet |
Alces alces |
op_source |
oai:easy.dans.knaw.nl:easy-dataset:94222 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:94222 10.5061/dryad.8f973 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 |
op_relation |
http://dx.doi.org/10.5061/dryad.8f973 https://dx.doi.org/10.5061/dryad.8f973 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.8f973 |
_version_ |
1766260169337995264 |