Persistence of Seed Dispersal in Agroecosystems: Effects of Landscape Modification and Intensive Soil Management Practices in Avian Frugivores, Frugivory and Seed Deposition in Olive Croplands
نویسندگان
چکیده
Farming impacts animal-mediated seed dispersal through mechanisms operating on at least two spatial scales. First, the landscape scale, habitat loss and land conversion to agriculture/livestock grazing, second, farm via a local intensification of agricultural practices. These scales farming impact function but have rarely been integrated. In particular, studies evaluating effect agriculture frugivorous birds in Mediterranean ecosystems are lacking. This study evaluates role transformation, from fruit-rich woodland habitats olive grove landscapes, together with intensive practices soil management persistence for fleshy-fruited plants landscapes south Spain. We used bird censuses, mist-nets, traps characterize avian frugivore assemblages, frugivory, deposition seminatural (SNWH) patches fields 40 olives farms spanning 20 localities distributed across whole range cultivation Andalusia (southern Spain). found that despite remarkable abundance diversity, arrival decreased compared SNWH patches. Likewise, cover and/or growing expansion frugivory arrival. Interestingly, effects often depended context. less diverse fruit-eating assemblages pooled as increased or landscape, while remaining relatively invariant fields. Finally, conventional agriculture, low-intensity deposition. conclude permeable frugivores than expected due agroforest-like nature these presence is crucial maintenance landscapes. results evidence by seriously threaten service olive-dominated Maintenance, restoration, promotion should be prioritized conservation enhancing functional connectivity human-shaped
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ژورنال
عنوان ژورنال: Frontiers in Ecology and Evolution
سال: 2021
ISSN: ['2296-701X']
DOI: https://doi.org/10.3389/fevo.2021.782462