Testing the contribution of vertebrate predators and leaf traits to mainland-island differences in insect herbivory on oaks [Dataset]
We experimentally excluded insectivorous vertebrate predators (e.g., birds, bats) and measured leaf traits associated with herbivory in 52 populations of 12 oak (Quercus) species in three island-mainland sites: The Channel Islands of California vs. mainland California, Balearic Islands vs. mainland...
| Autores: | , , , , , , , , , , , , , , |
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| Tipo de recurso: | conjunto de datos |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:dnet:digitalcsic_::2f5c2ca316309ca6633cbfecb94a5423 |
| Acceso en línea: | http://hdl.handle.net/10261/428501 |
| Access Level: | acceso abierto |
| Palabra clave: | Biological sciences Bottom-up effects Chemical defences Island-mainland comparisons Multi-trophic interactions Plant-herbivore interactions Top-down effects Vertebrate predators biology Biology |
| Sumario: | We experimentally excluded insectivorous vertebrate predators (e.g., birds, bats) and measured leaf traits associated with herbivory in 52 populations of 12 oak (Quercus) species in three island-mainland sites: The Channel Islands of California vs. mainland California, Balearic Islands vs. mainland Spain, and the island Bornholm vs. mainland Sweden. Specifically, we included six conspecific island-mainland comparisons consisting of local oak species that were present both in islands and in mainland, and three congeneric comparisons consisting on insular endemic species (i.e., species only present in islands). For each of the nine oak species that were present on islands, we selected two or three populations in one or two islands and three paired conspecific or congeneric mainland populations, for a total of 52 populations. At each population, we selected three to four adult trees (N = 204) and experimentally excluded vertebrate predators (e.g., birds, bats) from two opposing, low-hanging accessible branches. At the end of the growing season, we measured leaf damage by insect herbivores on control vs. predator-excluded branches in all trees, and measured leaf traits, namely: phenolic compounds, specific leaf area, and nitrogen and phosphorous content (nutrient content has been measured at the population level). |
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