Details zur Publikation

Referenztyp Zeitschriften
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Creative Commons Lizenz creative commons licence
Titel (primär) An integrative approach to discern the seed dispersal role of frugivorous guilds in a Mediterranean semiarid priority habitat
Autor Acosta-Rojas, D.C.; Jiménez-Franco, M.V.; Zapata-Pérez, V.M.; De la Rúa, P.; Martínez-López, V.
Journal / Serie PeerJ
Erscheinungsjahr 2019
Department OESA
Band/Volume 7
Seite von e7609
Sprache englisch
Keywords DNA barcoding, Mutualistic networks, Vertebrate frugivorous guilds, Complementary seed dispersal, Priority habitat 5220*, Mediterranean
Abstract Seed dispersal is an essential process to maintain the viability of plant populations, and understanding this ecological process allows management strategies to be developed to conserve ecosystems. European Union priority habitat 5220* is defined as “Mediterranean arborescent shrubland with Ziziphus lotus” and it represents a favorable microclimate within the severe climatic conditions typical of the semiarid south-eastern region of the Iberian Peninsula. Therefore, the study of seed dispersal in this priority habitat by different frugivorous guilds, is a challenge for its conservation. In this study, we have characterized a mutualistic network of seed dispersal that is mediated by vertebrates (mammals and birds) in the protected habitat 5220*. The aims of this study were to: (i) identify the seed disperser community; (ii) analyze the relative role of key species in the dispersal process; and (iii) compare the functional ecology of the seed dispersal process between mammals and birds. As such, we collected animal faeces to determine seed dispersers taxonomy, identifying the mammals through the visual aspect of the faeces and the birds by DNA barcoding. In the case of birds, we also collected regurgitated seeds in which the disperser species was also identified through molecular techniques. This allowed us to build-up a mutualistic network and to identify the relative role of these animals in seed dispersal. Our results showed that mammals and birds fulfilled complementary roles in seed dispersal, with birds representing the main dispersers of key plants within the 5220* habitat, and mammals the main dispersers of human-cultivated plants. Herein, we provide a useful approach with relevant information that can be used to propose management policies that focus on restoring the threatened 5220* habitat, promoting the role of birds to disperse key species that structure plant communities of this priority habitat.
dauerhafte UFZ-Verlinkung
Acosta-Rojas, D.C., Jiménez-Franco, M.V., Zapata-Pérez, V.M., De la Rúa, P., Martínez-López, V. (2019):
An integrative approach to discern the seed dispersal role of frugivorous guilds in a Mediterranean semiarid priority habitat
PeerJ 7 , e7609