Frank, Kevin ; Brückner, Adrian ; Hilpert, Andrea ; Heethoff, Michael ; Blüthgen, Nico (2017)
Nutrient quality of vertebrate dung as a diet for dung beetles.
In: Scientific Reports, 2017, 7 (1)
doi: 10.1038/s41598-017-12265-y
Artikel, Zweitveröffentlichung
Kurzbeschreibung (Abstract)
At the basis of a trophic web, coprophagous animals like dung beetles (Scarabaeoidea) utilize resources that may have advantages (easy gain and handling) as well as drawbacks (formerly processed food). Several studies have characterized the nutrients, e.g. C/N ratios and organic matter content, for specific types of dung. However, a comparative approach across dung types and feeding guilds of dung producers, and relationships between dung nutrients and preferences by coprophages, have been missing. Hence, we analyzed water content, C/N ratio, amino acid, neutral lipid fatty acid, free fatty acid and sterol composition and concentrations in dung from 23 vertebrates, including carnivore, omnivore and herbivore species. Our analyses revealed significant differences among the three vertebrate feeding guilds for most nutritional parameters. Although formerly processed, dung grants sufficient amounts of essential nutrients for insects. We tested whether nutrients can explain the dung beetles’ preferences in a field experiment, using 12 representative dung types in baits that were installed in 27 forests and 27 grasslands. Although consistent preferences for specific dung types were pronounced, the nutritional composition did not predict the variation in attractiveness of these dung diets, suggesting a primary role of dung volatiles irrespective of food quality.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2017 |
| Autor(en): | Frank, Kevin ; Brückner, Adrian ; Hilpert, Andrea ; Heethoff, Michael ; Blüthgen, Nico |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Nutrient quality of vertebrate dung as a diet for dung beetles |
| Sprache: | Englisch |
| Publikationsjahr: | 2017 |
| Publikationsdatum der Erstveröffentlichung: | 2017 |
| Verlag: | Springer Nature |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Scientific Reports |
| Jahrgang/Volume einer Zeitschrift: | 7 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1038/s41598-017-12265-y |
| URL / URN: | https://doi.org/10.1038/s41598-017-12265-y |
| Herkunft: | Zweitveröffentlichung aus gefördertem Golden Open Access |
| Kurzbeschreibung (Abstract): | At the basis of a trophic web, coprophagous animals like dung beetles (Scarabaeoidea) utilize resources that may have advantages (easy gain and handling) as well as drawbacks (formerly processed food). Several studies have characterized the nutrients, e.g. C/N ratios and organic matter content, for specific types of dung. However, a comparative approach across dung types and feeding guilds of dung producers, and relationships between dung nutrients and preferences by coprophages, have been missing. Hence, we analyzed water content, C/N ratio, amino acid, neutral lipid fatty acid, free fatty acid and sterol composition and concentrations in dung from 23 vertebrates, including carnivore, omnivore and herbivore species. Our analyses revealed significant differences among the three vertebrate feeding guilds for most nutritional parameters. Although formerly processed, dung grants sufficient amounts of essential nutrients for insects. We tested whether nutrients can explain the dung beetles’ preferences in a field experiment, using 12 representative dung types in baits that were installed in 27 forests and 27 grasslands. Although consistent preferences for specific dung types were pronounced, the nutritional composition did not predict the variation in attractiveness of these dung diets, suggesting a primary role of dung volatiles irrespective of food quality. |
| URN: | urn:nbn:de:tuda-tuprints-68713 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 570 Biowissenschaften, Biologie |
| Fachbereich(e)/-gebiet(e): | 10 Fachbereich Biologie |
| Hinterlegungsdatum: | 15 Okt 2017 19:55 |
| Letzte Änderung: | 15 Okt 2017 19:55 |
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| Suche nach Titel in: | TUfind oder in Google |
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