3 Works

Agricultural intensification erodes taxonomic and functional diversity in Mediterranean olive groves by filtering out rare species

Rubén Tarifa, Carlos Martínez-Núñez, Francisco Valera, Juan P. González-Varo, Teresa Salido & Pedro J. Rey
1. Agri-Environmental Schemes (AES) have been proposed to mitigate the impact of agriculture on both taxonomic and functional biodiversity. However, a better knowledge of the mechanisms involved in the loss of agrobiodiversity is needed to implement efficient AES. An unbalanced effort on research towards arable lands compared to permanent crops, and on fauna relative to plants, is patent, which limits the generalization of AES effectiveness. 2. We evaluated the effects of agricultural management and landscape...

Fruit abundance and trait matching determine diet type and body condition across frugivorous bird populations

Juan P. González-Varo, Alejandro Onrubia, Néstor Pérez-Méndez, Rubén Tarifa & Juan C. Illera
Research on seed-dispersal mutualisms has been highly unbalanced towards the plants, largely overlooking the fitness effects of fruit resources on frugivorous animals. Moreover, despite morphological mismatches like gape limitation may reduce the abundance of fruits that are actually accessible to a frugivore species, there is very little evidence on the trait-matching implications from a frugivore’s perspective. Here, we refine recent resource-provisioning models to comprehensively test the joint effects of fruit abundance and trait matching on...

Partitioning beta diversity to untangle mechanisms underlying the assembly of bird communities in Mediterranean olive groves

Vicente García-Navas, Carlos Martínez-Núñez, Rubén Tarifa, Antonio J. Manzaneda, Francisco Valera, Teresa Salido, Francisco M. Camacho & Pedro J. Rey
Aim: We investigated taxonomic and functional beta diversity of bird communities inhabiting Mediterranean olive groves subject to either intensive or extensive management of the ground cover and located in landscapes with different degrees of complexity. Location: Andalusia, southern Spain. Methods: We partitioned taxonomic and functional beta diversity into its two additive components, turnover and nestedness. We also explored the contributions of single sites to overall beta diversity (LCBD) and separated the effects of species replacement...

Registration Year

  • 2021
    3

Resource Types

  • Dataset
    3

Affiliations

  • University of Jaén
    3
  • University of Cádiz
    3
  • Estacion Experimental de Zonas Aridas
    2
  • University of Oviedo
    1
  • Estación Biológica de Doñana
    1
  • Institute for Research and Technology in Food and Agriculture
    1
  • Agroscope
    1