| Title: | Ectophagous folivores do not profit from rich resources on phylogenetically isolated trees |
| Author(s): | Mallick S; Molleman F; Yguel B; Bailey R; Muller J; Jean F; Prinzing A; |
| Address: | "Centre National de la Recherche Scientifique, Universite de Rennes 1, Research Unit UMR 6553, Ecosystemes Biodiversite Evolution (ECOBIO), Campus de Beaulieu, 35042, Rennes, France. soumen.mallick@univ-rennes1.fr. Department of Systematic Zoology, Institute of Environmental Biology, Faculty of Biology, A. Mickiewicz University, Ul. Uniwersytetu Poznanskiego 6, 61-614, Poznan, Poland. Centre National de la Recherche Scientifique, Universite de Rennes 1, Research Unit UMR 6553, Ecosystemes Biodiversite Evolution (ECOBIO), Campus de Beaulieu, 35042, Rennes, France. Centre d'Ecologie et des Sciences de la Conservation (CESCO-UMR 7204), Sorbonne Universites-MNHN-CNRS-UPMC, CP51, 55-61rue Buffon, 75005, Paris, France. Department of Ecology and Vertebrate Zoology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland. Field Station Fabrikschleichach, Department of Animal Ecology and Tropical Biology, Biocenter, University of Wurzburg, Glashuttenstrasse 5, 96181, Rauhenebrach, Germany. Bavarian Forest National Park, Freyunger Str. 2, 94481, Grafenau, Germany" |
| DOI: | 10.1007/s00442-022-05260-2 |
| ISSN/ISBN: | 1432-1939 (Electronic) 0029-8549 (Linking) |
| Abstract: | "Resource use by consumers across patches is often proportional to the quantity or quality of the resource within these patches. In folivores, such proportional use of resources is likely to be more efficient when plants are spatially proximate, such as trees forming a forest canopy. However, resources provided by forest-trees are often not used proportionally. We hypothesised that proportional use of resources is reduced when host trees are isolated among phylogenetically distant neighbours that mask olfactory and visual search cues, and reduce folivore movement between trees. Such phylogenetically distant neighbourhoods might sort out species that are specialists, poor dispersers, or have poor access to information about leaf quality. We studied individual oaks, their leaf size and quality, their folivory and abundance of folivores (mostly Lepidopteran ectophages, gallers and miners), and parasitism of folivores. We found that leaf consumption by ectophages hardly increased with increasing leaf size when host trees were phylogenetically isolated. We found a similar effect on host use by parasitoids in 1 year. In contrast, we found no consistent effects in other folivore guilds. Relative abundances of specialists and species with wingless females declined with phylogenetic isolation. However, resource use within each of these groups was inconsistently affected by phylogenetic isolation. We suggest that phylogenetic isolation prevents ectophages from effectively choosing trees with abundant resources, and also sorts out species likely to recruit in situ on their host tree. Trees in phylogenetically distant neighbourhoods may be selected for larger leaves and greater reliance on induced defences" |
| Keywords: | Phylogeny *Forests Herbivory Plant Leaves *Quercus Folivore guilds Leaf size/quality Parasitoids Phylogenetic isolation Plant-animal interactions; |
| Notes: | "MedlineMallick, Soumen Molleman, Freerk Yguel, Benjamin Bailey, Richard Muller, Jorg Jean, Frederic Prinzing, Andreas eng Germany 2022/09/28 Oecologia. 2023 Jan; 201(1):1-18. doi: 10.1007/s00442-022-05260-2. Epub 2022 Sep 27" |
