Abstract
Over 70% of threatened birds in the state of Rio Grande do Sul, south Brazil, inhabit forest environments. The creation and maintenance of protected areas is one of the most important measures aiming to mitigate these problems. However, the knowledge of the local biodiversity is essential so that these areas can effectively preserve the natural resources. Between 2004 and 2009 we sampled the avifauna in two conservation units in Rio Grande do Sul: Floresta Nacional de Canela (FNC) and Parque Natural Municipal da Ronda (PMR), both representative of the Mixed Humid Forest (Araucaria Forest). A total of 224 species was recorded, 116 at FNC and 201 at PMR, ten of which threatened regionally: Pseudastur polionotus, Odontophorus capueira, Patagioenas cayennensis, Amazona pretrei, A. vinacea, Triclaria malachitacea, Campephilus robustus, Grallaria varia, Procnias nudicollis and Sporophila melanogaster. Richness and species composition seem to be related to different stages of forest conservation, to size and connectivity, as well as to the diversity of environments. The better conservation of PMR compared to FNC, allied to its geographic position, results in a richer avifauna, with a larger amount of rare and endangered species, as well as species sensitive to disturbance and endemic to the Atlantic Rainforest. We suggest management actions aiming the conservation and the long-term recovery of natural environments at these sites.
Highlights
Rio Grande do Sul is one of the states in Brazil with the best knowledge of its avian composition, with a record of 661 species (Bencke et al, 2010)
Species list in protected areas is one of the initial and most relevant procedures for the maintenance of natural resources (Wilson, 1997), many Conservation Units (CUs) in Brazil do not have biological surveys
Such is the case of Floresta Nacional de Canela and Parque Natural Municipal da Ronda, both located in São Francisco de Paula, regional scale (RS)
Summary
Rio Grande do Sul is one of the states in Brazil with the best knowledge of its avian composition, with a record of 661 species (Bencke et al, 2010). Species list in protected areas is one of the initial and most relevant procedures for the maintenance of natural resources (Wilson, 1997), many Conservation Units (CUs) in Brazil do not have biological surveys Such is the case of Floresta Nacional de Canela and Parque Natural Municipal da Ronda, both located in São Francisco de Paula, RS. When studying the avifauna through an altitude gradient in the Atlantic coast of the state, Bencke & Kindel (1999) sampled an area going from the sea level up to 1000 m, including the region of São Francisco de Paula This can be considered the most complete study on bird diversity covering an area from the slope and lowlands to the uplands along the state of Rio Grande do Sul. In addition, the biological inventories in three protected areas of the state are important references, which include the vegetation found in the slopes and lowlands. We bring information on the poorly known, rare or endangered species in the region and propose a list of management measures
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
