The lack of seeds represents one of the highest di culties to overcome for the ecological restoration of areas that have been deforested. This study evaluates the effectiveness of arti cial perches in increasing the abundance and species richness of bird-dispersed seeds and the similitude of seed rain composition (origin and habit of plant seeds), of deforested areas with and without arti cial perches in relation to woodland remnants that serve as seeds source. The experiment took place in two sites of the Espinal ecoregion, Argentina. We found that in deforested areas, perches increased seed abundance and species richness in the seed rain in comparison with deforested areas without arti cial perches. The species composition under arti cial perches was similar to the seed rain dispersed in the woodland. However, a decrease in the richness of native species was signi cant in the deforested area, probably due to behavioral differences between opportunistic and obligate frugivorous. Seed of trees and shrubs species were well represented in the seed rain under arti cial perches. Results from this study contribute to the understanding of nucleation and recovery mechanisms used by nature that re ect ecosystem resilience. We recommend using arti cial perches in deforested areas with potential for recovery because it is an e cient technique to promote the entry of birds and increase seed rain, preserving features of the original environment. However, using arti cial perches should be avoided in sites with potentially invasive nonnative species.
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