Simulated predation of Quercus variabilis acorns impairs nutrient remobilization and seedling performance irrespective of soil fertility
Identificadores
Enlace permanente (URI): http://hdl.handle.net/10017/37449DOI: 10.1007/s11104-017-3518-0
ISSN: 0032-079X
Fecha de publicación
2018Patrocinadores
National Natural Science Foundation of China
Comunidad de Madrid
Cita bibliográfica
Plant and Soil, 2018, v. 423, n. 1, p. 295-306
Palabras clave
Acorn removal
Acorn reserves
Growth
Soil nutrients
Survival
Root structure
Proyectos
31670638 (National Natural Science Foundation of China)
TD2011-8 (Fundamental
Research Funds for the Central Universities)
REMEDINAL 3 S2013/MAE-2719 (Comunidad de Madrid)
info:eu-repo/grantAgreement/MINECO//CGL2014-53308-P/ES/SERVICIOS DE LA AVIFAUNA (HIGH MOBILE LINK SPECIES) EN MOSAICOS AGROFORESTALES: REGENERACION FORESTAL Y REGULACION DE PLAGAS/
Tipo de documento
info:eu-repo/semantics/article
Versión
info:eu-repo/semantics/publishedVersion
Derechos
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
© 2017 Springer International Publishing
Derechos de acceso
info:eu-repo/semantics/openAccess
Resumen
Background and aims Predators may partially orcompletely consume Quercus spp. acorns, but effectson nutrient remobilization and seedling performance arepoorly understood. We investigated interactions betweensoil fertility and the removal of Quercus variabilisacorn cotyledons at different early developmental stageson seedling nutrition and development.Methods Seedlings were grown in two soils of contrastingfertility and the kinetics of acorn nitrogen, phosphorusand potassium remobilization, and seedling survival,growth and nutrient content were analyzed.Results Acorn mass and macronutrients decreased remarkably<2 weeks after emergence, with nitrogen andphosphorus remobilizing faster than potassium. Acornremoval at or 1 week after emergence inhibited seedlingsurvival, growth and fine root formation, whereas removalfrom 2 to 10 weeks after emergence had minor effects. Acorn macronutrient remobilization and effects of acorn removal on seedling performance were not reversed under high soil fertility. When acorns were removed ≥ 2 weeks after emergence, fertilization increased root surface and seedling nitrogen content. Conclusions. Acorn nutrients are more important than soil nutrients during very early seedling development. Cotyledon damage at emergence impairs seedling performance despite no direct damage to the remainder of the seedling. This effect cannot be reverted by high soil fertility and has potential ecological and practical implications for oak regeneration.
Ficheros en el ítem
Ficheros | Tamaño | Formato |
|
---|---|---|---|
simulated_shi_PLSO_2017.pdf | 936.2Kb |
|
Ficheros | Tamaño | Formato |
|
---|---|---|---|
simulated_shi_PLSO_2017.pdf | 936.2Kb |
|
Colecciones
- ECOLOGÍA - Artículos [239]