Abstract
In the Midwest region of Brazil, forest fragments from the Atlantic Forest biome are disconnected from the landscape and with low resilience. Searching for potential restoration techniques, this study aimed to evaluate the interactions of artificial perches with some nucleation techniques, in order to confirm the hypothesis that the combination of these techniques increases the diversity of seeds and regenerants in the area. The experimental design was randomized in blocks, with five treatments and three replications. The restoration treatments included (1) control perches only; (2) perches with propagule collectors; (3) perches with brushwood transposition; (4) perches with food supply; and (5) perches with brushwood transposition and food supply. The experiment was conducted in a degraded area, which was previously colonized by pasture, in the surroundings of a forest remnant (reference ecosystem). After 365 days, the regenerants were identified (number of species and individuals). In the diversity of regenerants there was a significant increase with the interaction of more than one nucleation technique, highlighting the efficiency of the combination of artificial perches with collectors (T2) and brushwood transposition with food supply (T5). Based on the results it can be stated that the use of artificial perches combined with other nucleation techniques favors the recruitment of seedlings of zoochoric species and increases the seed bank through bird foraging. We believe that this technique is economically viable and has the potential for being used in restoration projects.
Highlights
One of the greatest threats to global biodiversity Is the anthropogenic impact due to the expansion of agricultural frontiers (Hansen et al, 2013)
Searching for potential restoration techniques, this study aimed to evaluate the interactions of artificial perches with some nucleation techniques, in order to confirm the hypothesis that the combination of these techniques increases the diversity of seeds and regenerants in the area
It is believed that the use of artificial perches alone was effective in the range of regenerating, when combined with other nucleation techniques such as brushwood transposition, food supply, and collectors, it can be seen an increase in the species diversity
Summary
One of the greatest threats to global biodiversity Is the anthropogenic impact due to the expansion of agricultural frontiers (Hansen et al, 2013). Brazilian semideciduous seasonal forests are forest formations that belong to the Atlantic Forest biome (Martins & Cavararo, 2012) and are protected by the Law 12.651 (Brazil, 2012) due to their various environmental functions, such as the preservation of water resources, landscapes, geological stability, and biodiversity. These forests facilitate gene flow of fauna and flora, protect the soil, and ensure human well-being.
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