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Best be(e) on low fat: linking nutrient perception, regulation and fitness

Please always quote using this URN: urn:nbn:de:bvb:20-opus-208709
  • Preventing malnutrition through consuming nutritionally appropriate resources represents a challenge for foraging animals. This is due to often high variation in the nutritional quality of available resources. Foragers consequently need to evaluate different food sources. However, even the same food source can provide a plethora of nutritional and non‐nutritional cues, which could serve for quality assessment. We show that bumblebees, Bombus terrestris , overcome this challenge by relying on lipids as nutritional cue when selecting pollen. ThePreventing malnutrition through consuming nutritionally appropriate resources represents a challenge for foraging animals. This is due to often high variation in the nutritional quality of available resources. Foragers consequently need to evaluate different food sources. However, even the same food source can provide a plethora of nutritional and non‐nutritional cues, which could serve for quality assessment. We show that bumblebees, Bombus terrestris , overcome this challenge by relying on lipids as nutritional cue when selecting pollen. The bees ‘prioritised’ lipid perception in learning experiments and avoided lipid consumption in feeding experiments, which supported survival and reproduction. In contrast, survival and reproduction were severely reduced by increased lipid contents. Our study highlights the importance of fat regulation for pollen foraging bumblebees. It also reveals that nutrient perception, nutrient regulation and reproductive fitness can be linked, which represents an effective strategy enabling quick foraging decisions that prevent malnutrition and maximise fitness.show moreshow less

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Metadaten
Author: Fabian A. Ruedenauer, David Raubenheimer, Daniela Kessner-Beierlein, Nils Grund-Mueller, Lisa Noack, Johannes Spaethe, Sara D. Leonhardt
URN:urn:nbn:de:bvb:20-opus-208709
Document Type:Journal article
Faculties:Fakultät für Biologie / Theodor-Boveri-Institut für Biowissenschaften
Language:English
Parent Title (English):Ecology Letters
Year of Completion:2020
Volume:23
Issue:3
Pagenumber:545-554
Source:Ecology Letters (2020) 23(3): 545–554. DOI: 10.1111/ele.13454
DOI:https://doi.org/10.1111/ele.13454
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie
Tag:PER; bee decline; foraging; nutrition; plant-insect interactions; pollen quality; resource use
Release Date:2020/09/22
Licence (German):License LogoCC BY-NC: Creative-Commons-Lizenz: Namensnennung, Nicht kommerziell 4.0 International