Avifauna and biogeographical affinities of a<i>carrasco</i>-dominated landscape in north-eastern Brazil: providing baseline data for future monitoring

Lima, Hevana S.; Las-Casas, Flor Maria Guedes; Ribeiro, Jonathan Ramos; Girão, Weber; Mariz, Daniele; Naka, Luciano N.

doi:10.1017/s0959270921000101

Cited by 3 publications

(3 citation statements)

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“…One of the main limitations of the space-for-time approach is that areas under study may be heterogeneous or may have suffered from different histories of land use (Foster and Tilman, 2000). The Fazenda Pau D'Arco represents a rather homogeneous patch of dry forest vegetation, with virtually no differences in altitude or climatic regimes throughout its area (de Lima et al, 2021). Our results from the chrono-sequence studied, including an 11-yr regeneration period, are somewhat concerning.…”

Section: Discussionmentioning

confidence: 77%

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The Effect of Forest Management on the Avifauna of a Brazilian Dry Forest

et al. 2021

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The conversion of tropical habitats has dramatic implications on biodiversity and represents one of the greatest conservation challenges of our time. Seasonally Dry Tropical Forests (SDTF), which are disjointly distributed throughout the Neotropics, are especially susceptible to human activities. The Caatinga Dry Forest, located in the semi-arid interior of northeastern Brazil, represents not only the largest and most biologically diverse nucleus of SDTF, but also the world’s most densely populated semi-arid region, with ever-growing pressure on its natural resources. To prevent illegal logging, conservation agencies looked at forest management, where an area is divided in smaller stands which are gradually logged and allowed to regrow for a period of time, when a new cutting cycle should reinitiate. The impacts of these management schemes on biodiversity, however, remain largely untested. We conducted standardized avian surveys to evaluate the effects of forest management on the avian community at a 1,670 ha privately owned property located on the Chapada do Araripe, northeastern Brazil. This area was divided in 22 forest stands, half of which had already been logged at the time of our sampling, creating a gradient of logged and natural forests and an 11-yr chrono-sequence of forest regeneration. Our results show that logged areas present fewer individuals, fewer species, and different avian assemblages than unlogged forests. Such differences are mostly driven by forest-dependent species, which were overwhelmingly affected by forest management. Our results show that although logged forests tend to recover its height after a decade, they do not recover the originally forest cover, measured by the Normalized Difference Vegetation Index. Likewise, decade-long recovering stands continue to show lower species richness, lower bird abundance, and different avian composition than unlogged forests. We identified a set of bird species that are more affected by forest management (ecological losers) and a group of birds that apparently benefit from the referred changes in land use (ecological winners). We conclude that completely managing an entire area may cause the extirpation of several forest-dependent species. We therefore suggest keeping logged and unlogged plots intermingled, to avoid local extinctions and the complete modification of the original avifauna.

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Section: Discussionmentioning

confidence: 77%

“…During our point counts, we detected 3,789 individuals of 90 bird species, of 34 different avian families, which represents more than 60% of all bird species ever recorded at the Fazenda Pau D'Arco, and virtually all non-occasional residents (de Lima et al, 2021).…”

Section: Avian Community Structurementioning

confidence: 99%

The Effect of Forest Management on the Avifauna of a Brazilian Dry Forest

et al. 2021

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“…The documentation of avifauna provides a baseline for non-specimen records, records are supported by photographs, which are captured at the time of field observation 9 .…”

Section: Introductionmentioning

confidence: 99%

Status and Diversity of Ornithofauna in Joggers Park, Lucknow, Uttar Pradesh, India

Mishra

Prateek

Mishra

et al. 2023

JEOH

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The present study was done to account for the status and diversity of ornithofauna of Joggers Park, Lucknow, U.P., India. The field explorations were carried out from September 2021 to August 2022. During the period of study, a total of 62 species of ornithofauna were identified which belonged to 13 orders and 32 families. The order Passeriformes had a maximum number of bird count (34 species) belonging to 16 families. The least number of bird species was recorded in orders Strigiformes, Charadriiformes, Apodiformes, and Galliformes each containing 1 species. All the 62 avian species reported in Joggers Park come under the least concerned category of IUCN. Out of the total species, 49 species were resident and 13 Residents were Migratory (RM).

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Managed logging negatively affects the density and abundance of some dry forest specialist bird species of northeastern Brazil

Ribeiro

Las-Casas

Silva

et al. 2021

Ornithological Applications

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The Caatinga, the largest region of seasonally dry tropical forest in the Neotropics, suffers high rates of deforestation and habitat degradation, mostly due to wood extraction. As an alternative to illegal logging, governments have looked at more sustainable management schemes, allowing natural regeneration after logging through relatively long (~25-year) harvest rotations. We investigated the impacts of forest management at a 1,700-ha privately owned area located at the Araripe Plateau, in the semiarid interior of northeastern Brazil, focusing on the population parameters of 8 avian species. The property was subdivided into 22 forest stands, where a different stand has been logged every year since 2004. By 2016, when we sampled the avifauna, 12 forest stands had already been logged and allowed to regrow, creating a landscape of logged and unlogged stands and a 12-year forest recovery chrono-sequence. We conducted distance-based sampling along transects to estimate the density and abundance of these species in logged and unlogged stands. We found that logging impacted 3 of the target species. Two of them (Megaxenops parnaguae and Synallaxis scutata) were less abundant, whereas another (Sclerurus cearensis) disappeared altogether from logged areas. We also found a positive correlation between the normalized difference vegetation index (NDVI) and the avian density of the affected species. However, we failed to observe any significant relationship between forest recovery or NDVI and species densities, suggesting that even after 12 years of forest recovery, species abundance remains lower in logged than in unlogged areas. We found that logging impacted birds in a species-specific manner, with 5 species unaffected and 3 species declining. Although our sampling occurred half-way through the regeneration cycle, we found no evidence of recovery for those species most affected. We suggest keeping unlogged areas intermingled with logged stands, allowing the survival and potential recovery of species in regenerating forests.

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Avifauna and biogeographical affinities of acarrasco-dominated landscape in north-eastern Brazil: providing baseline data for future monitoring

Cited by 3 publications

References 40 publications

The Effect of Forest Management on the Avifauna of a Brazilian Dry Forest

The Effect of Forest Management on the Avifauna of a Brazilian Dry Forest

Status and Diversity of Ornithofauna in Joggers Park, Lucknow, Uttar Pradesh, India

Managed logging negatively affects the density and abundance of some dry forest specialist bird species of northeastern Brazil

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