Spatial heterogeneity of gall formation in relation to chemotype distribution in Thymus vulgaris
| Autor: | Perrine Gauthier, Yan B. Linhart, John D. Thompson, Christophe Borron, Justin Amiot, Ken Keeefover-Ring |
|---|---|
| Přispěvatelé: | Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UPVM)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Laboratoire d'Etude de l'Apprentissage et du Développement [Dijon] (LEAD), Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB), Université Paul-Valéry - Montpellier 3 (UPVM)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École Pratique des Hautes Études (EPHE), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
education.field_of_study Ecology Chemotype digestive oral and skin physiology fungi Population food and beverages Parasitism Plant Science 15. Life on land 010603 evolutionary biology 01 natural sciences digestive system diseases Spatial heterogeneity Plant ecology Botany Shoot Gall Biological dispersal [SDE.BE]Environmental Sciences/Biodiversity and Ecology education ComputingMilieux_MISCELLANEOUS 010606 plant biology & botany |
| Zdroj: | Plant Ecology Plant Ecology, Springer Verlag, 2019, ⟨10.1007/s11258-019-00954-9⟩ Plant Ecology, 2019, ⟨10.1007/s11258-019-00954-9⟩ |
| ISSN: | 1385-0237 1573-5052 |
| Popis: | The utilization of host plants by herbivorous insects depends on plant traits and physical environment. The purpose of the present work is to test the hypothesis that spatial variation in the presence of galls of the specialist fly Janetiellathymicola in natural populations of its host plant Thymus vulgaris differ in relation to spatial variation in chemotype presence. We quantified gall infection rates in 59 populations that differ in chemotype presence across a sharp ecological gradient in the South of France. We also quantified spatial aggregation of galls and plants and made a 3-year study of infection, biomass and plant survival in three populations. The proportion of galled plants was significantly higher in populations with non-phenolic chemotypes on deeper soils in sites with cold winter temperatures than in populations of phenolic chemotypes on stony soils in sites with mild winters. In a population with two non-phenolic chemotypes, galls were significantly more present on plants of the chemotype with the highest proportion of galls in the multi-population survey. In a 3-year study, galled plants had a significantly greater probability of being infected by a subsequent generation than non-galled plants. This probability declined with distance. Galls absorbed a significant proportion of vegetative biomass on a shoot, but their presence was unrelated to survival. Host plant chemistry, habitat characteristics and dispersal limitation conjointly affect this host–parasite interaction. |
| Databáze: | OpenAIRE |
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