Compartir
Título
Regeneration dynamics in fragmented landscapes at the leading edge of distribution: Quercus suber woodlands as a study case
Autor(es)
Materia
Recruitment dynamics
Quercus suber
Edge distribution
Secondary succession
Growth-climate relationships
Clasificación UNESCO
24 Ciencias de la vida
2508.10 Precipitación
2502 Climatología
2402.03 Antropometría y Antropología Forense
Fecha de publicación
2021
Editor
Springerlink
Citación
Montero-Muñoz, J.L., Ureña, C., Navarro, D. et al. (2021). Regeneration dynamics in fragmented landscapes at the leading edge of distribution: Quercus suber woodlands as a study case. Plant Soil 467, 311–327. https://doi.org/10.1007/s11104-021-05077-7
Resumen
[EN] Aims
We studied the regeneration dynamics of woodlands and abandoned old fields in a landscape dominated by Quercus suber in its lower limits of rainfall and temperature. Two hypotheses were established: (1) regeneration of Quercus species is strongly favored by the presence of tree cover; and (2) growth of Q. suber is driven by the climatic variables that represent the lower ecological limit of its leading distribution edge.
Methods
We selected woodlands and old fields with and without tree remnants (n = 3 per type), and analyzed stand structure, soil parameters and tree growth.
Results
Succession was arrested in old fields without tree remnants. By contrast, remnant trees were accelerators of forest recovery in old fields. Tree cover played a fundamental role in Quercus recruitment throughout seed dispersal and facilitation that mitigate the effects of summer drought on seedlings. Also, tree cover improved soil parameters (e.g., organic matter) that are important factors for understanding differences in regeneration. Winter/spring precipitation exerted a positive effect on tree growth, as well as temperatures during winter/spring and September.
Conclusions
Regeneration dynamics are modeled by the density of tree cover in the cold and dry edge of the distribution area of Q. suber where Q. ilex is increasing in abundance. Although temperature has a positive effect on the tree growth of Q. suber, when demographic processes are considered, decreases in water availability likely play a critical role in Q. ilex recruitment. This in turn changes dominance hierarchies, especially in abandoned areas with little or no tree cover.
URI
ISSN
0032-079X
DOI
10.1007/s11104-021-05077-7
Versión del editor
Colecciones
Patrocinador
Publicación en abierto financiada por el Consorcio de Bibliotecas Universitarias de Castilla y León (BUCLE), con cargo al Programa Operativo 2014ES16RFOP009 FEDER 2014-2020 DE CASTILLA Y LEÓN, Actuación:20007-CL - Apoyo Consorcio BUCLE
Ficheros en el ítem
Tamaño:
3.781Mb
Formato:
Adobe PDF