Silicon-based plant defences, tooth wear and voles
| Autor: | Paulina A. Szafrańska, Karol Zub, Ivan Calandra, Gildas Merceron, Andrzej Zalewski |
|---|---|
| Přispěvatelé: | Groupe d'Étude sur les Géomatériaux et Environnements Naturels, Anthropiques et Archéologiques - EA 3795 (GEGENAA), Université de Reims Champagne-Ardenne (URCA)-SFR Condorcet, Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Maison des Sciences Humaines de Champagne-Ardenne (MSH-URCA), Université de Reims Champagne-Ardenne (URCA)-Université de Reims Champagne-Ardenne (URCA), Institut International de Paléoprimatologie, Paléontologie Humaine : Evolution et Paléoenvironnement (IPHEP), Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Physiology Population Zoology Aquatic Science 010603 evolutionary biology 01 natural sciences 03 medical and health sciences Grazing Animals [SDV.BV]Life Sciences [q-bio]/Vegetal Biology Herbivory education Molecular Biology ComputingMilieux_MISCELLANEOUS Ecology Evolution Behavior and Systematics education.field_of_study Herbivore biology Arvicolinae Ecology Plants Silicon Dioxide biology.organism_classification Diet Plant Leaves 030104 developmental biology Tooth wear Phytolith Insect Science Population cycle Animal Science and Zoology Vole Poland Seasons Tooth Wear |
| Zdroj: | Journal of Experimental Biology Journal of Experimental Biology, The Company of Biologists, 2016, 219 (4), pp.501-507. ⟨10.1242/jeb.134890⟩ |
| ISSN: | 1477-9145 0022-0949 |
| DOI: | 10.1242/jeb.134890 |
| Popis: | Plant–herbivore interactions are hypothesized to drive vole population cycles through the grazing-induced production of phytoliths in leaves. Phytoliths act as mechanical defences because they deter herbivory and lower growth rates in mammals. However, how phytoliths impair herbivore performance is still unknown. Here, we tested whether the amount of phytoliths changes tooth wear patterns. If confirmed, abrasion from phytoliths could play a role in population crashes. We applied dental microwear texture analysis (DMTA) to laboratory and wild voles. Lab voles were fed two pelleted diets with differing amounts of silicon, which produced similar dental textures. This was most probably due to the loss of food mechanical properties through pelletization and/or the small difference in silicon concentration between diets. Wild voles were trapped in Poland during spring and summer, and every year across a population cycle. In spring, voles feed on silica-rich monocotyledons, while in the summer they also include silica-depleted dicotyledons. This was reflected in the results; the amount of silica therefore leaves a traceable record in the dental microwear texture of voles. Furthermore, voles from different phases of population cycles have different microwear textures. We tentatively propose that these differences result from grazing-induced phytolith concentrations. We hypothesize that the high amount of phytoliths in response to intense grazing in peak years may result in malocclusion and other dental abnormalities, which would explain how these silicon-based plant defences help provoke population crashes. DMTA could then be used to reconstruct vole population dynamics using teeth from pellets or palaeontological material. |
| Databáze: | OpenAIRE |
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