Colonization Pattern of Abandoned Croplands by Quercus pyrenaica in a Mediterranean Mountain Region
Metadatos
Afficher la notice complèteEditorial
MDPI
Materia
Mountain abandoned croplands Land-use legacies Sierra Nevada Pyrenean oak Mediterranean mountain Herbivory Post-abandonment management
Date
2021Referencia bibliográfica
Pérez-Luque, A.J.; Bonet-García, F.J.; Zamora, R. Colonization Pattern of Abandoned Croplands by Quercus pyrenaica in a Mediterranean Mountain Region. Forests 2021, 12, 1584. https://doi.org/10.3390/f12111584
Patrocinador
LIFE-ADAPTAMED (LIFE14CCA/ES/000612) project; MIGRAME Project (Excellence Research Group Programme of the Andalusian Government (RNM 6734); eLTER H2020 projectRésumé
Land abandonment is a major global change driver in the Mediterranean region, where
anthropic activity has played an important role in shaping landscape configuration. Understanding
the woodland expansion towards abandoned croplands is critical to develop effective management
strategies. In this study, we analyze the colonization pattern of abandoned croplands by Quercus
pyrenaica in the Sierra Nevada mountain range (southern Spain). We aimed to assess differences
among populations within the rear edge of the Q. pyrenaica distribution. For this purpose, we characterized (i) the colonization pattern of Q. pyrenaica, (ii) the structure of the seed source (surrounding
forests), and (iii) the abundance of the main seed disperser (Eurasian jay, Garrulus glandarius). The
study was conducted in five abandoned croplands located in two representative populations of Q.
pyrenaica located on contrasting slopes. Vegetation plots within three habitat types (mature forest,
edge-forest and abandoned cropland) were established to compute the abundance of oak juveniles.
The abundance of European jay was determined using data of bird censuses (covering 7 years). Our
results indicate that a natural recolonization of abandoned croplands by Q. pyrenaica is occurring in
the rear edge of the distribution of this oak species. Oak juvenile abundance varied between study
sites. Neither the surrounding-forest structure nor the abundance of jays varied significantly between
study sites. The differences in the recolonization patterns seem to be related to differences in the
previous- and post-abandonment management.