Abstract

The Pernambuco Endemism Center in north-east Brazil has the most fragmented forest cover and the largest number of threatened birds of the whole Atlantic Forest. We analyzed the distribution of three groups of bird species: forest-dependent, endemic and/or threatened using the interpolation method of Inverse Distance Weighting. We also checked the concentration of these birds in protected and unprotected areas, suggesting new sites that need to be protected. The richness concentration of forest-dependent, endemic and/or threatened birds in 123 sites were analysed. There was a greater concentration of the three groups in north Alagoas, south and north Pernambuco, and north and west Paraíba. The distribution of the three groups was almost regular in different vegetation types, although a lower concentration was found in the pioneer formation. There was a greater concentration of birds from all three groups between Pernambuco and Alagoas, and this must be due to the presence of more forest fragments with better structure and vegetation heterogeneity. The protected and unprotected areas hosted important records of endemic and/or threatened birds. We suggested some important places for implementation of new protected areas due to the larger concentrations of the target birds and because they are located within the boundaries of the Important Bird Areas.

Highlights

  • The Brazilian Atlantic Forest in the states of Alagoas, Pernambuco, Paraíba and Rio Grande do Norte, known as Pernambuco Endemism Center ( PEC)(Silva et al, 2004) retains just only 11.45% of its original vegetation cover (SOSMA, 2015), and is currently one of the most degraded areas of the whole dominium, consideredBraz

  • Despite the high level of fragmentation, 434 bird species persist in the region (Roda et al, 2011), which has the highest number of threatened birds in Brazil, according to the last updated list of threatened birds (Brasil, 2014; IUCN, 2015)

  • Some research related to the conservation of threatened birds was carried out in the region, e.g. Pauxi mitu, Glaucidium mooreorum, Terenura sicki, Philydor novaesi, Tangara fastuosa, etc (Silveira et al, 2003b, 2008; Roda et al, 2011)

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Summary

Introduction

The Brazilian Atlantic Forest in the states of Alagoas, Pernambuco, Paraíba and Rio Grande do Norte, known as Pernambuco Endemism Center ( PEC)(Silva et al, 2004) retains just only 11.45% of its original vegetation cover (SOSMA, 2015), and is currently one of the most degraded areas of the whole dominium, consideredBraz. Some research related to the conservation of threatened birds was carried out in the region, e.g. Pauxi mitu, Glaucidium mooreorum, Terenura sicki, Philydor novaesi, Tangara fastuosa, etc (Silveira et al, 2003b, 2008; Roda et al, 2011). This current alarming situation of the PEC has occurred due to the removal of the native vegetation (Olmos, 2005; Silveira et al, 2003a). Throughout the region there are 42 IBAs, many of which overlap protected areas

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