Structure and Organization of Canopy Bird Assemblages in Central Amazonia

Naka, Luciano N.

doi:10.1642/0004-8038(2004)121[0088:saoocb]2.0.co;2

Cited by 17 publications

(22 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This study adds to the growing body of evidence suggesting that the natural heterogeneity found in a tropical forest can affect the local composition of animal and plant communities [17,21,[38][39][40][41][42][43][44][45][46][47][48]. Although we found that none of the variables analyzed were significantly associated with the number of bird species (richness) and individuals (abundance) recorded either on mist-nets or acoustic surveys, we found significant relationships between at least three parameters (elevation, distance to the nearest stream, and depth of the leaf litter) and bird species composition.…”

Section: Discussionmentioning

confidence: 90%

“…These species seem to be generally rare or locally uncommon in central Amazonia [14], independently of the conservation condition of the forest. In fact, virtually all species considered vulnerable to fragmentation or sensitive to fragment area [47] were found at the RFAD [48].…”

Section: Discussionmentioning

confidence: 99%

“…Despite the good conditions of the RFAD's avifauna, which was last surveyed by us more than five years ago [7,32,38,48], careful monitoring is important, particularly given the continuous pressure created by the growth of the city of Manaus. Therefore, we recommend that long-term monitoring of bird communities using standardized methods be done at the RFAD [54] in order to ensure that processes of species loss (if unavoidable) are well documented.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Spatial Variation in Bird Community Composition in Relation to Topographic Gradient and Forest Heterogeneity in a Central Amazonian Rainforest

Cintra

Naka

2012

International Journal of Ecology

View full text Add to dashboard Cite

We investigated the effects of landscape features and forest structure on the avian community at the Reserva Florestal Adolpho Ducke near Manaus, in the Brazilian Amazon. We sampled the landscape and forest in 72 50 × 50 m plots systematically distributed in the reserve, covering an area of 6,400 ha. The avifauna was sampled using mist nets and acoustic surveys near the plots. We found no significant relationships between landscape features and forest components in the plots and the number of bird species and individuals sampled. Results of Principal Coordinate Analyses, however, showed that bird species composition changes along a topographic gradient (plateau-slope-valley), and also in relation to leaf litter depth and distance to forest streams. We also found compositional differences in the avian community on the eastern and western water basins that compose the reserve. Our results suggest that although most bird species occur throughout the reserve, many species track differences in the landscape and the forest structure.

show abstract

Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Spatial Variation in Bird Community Composition in Relation to Topographic Gradient and Forest Heterogeneity in a Central Amazonian Rainforest

Cintra

Naka

2012

International Journal of Ecology

View full text Add to dashboard Cite

show abstract

“…Thus, the detection of these birds is usually compromised, which leads to an underestimation of richness and abundance of species associated with higher forest strata (Walther, 2003;Derlindati and Caziani, 2005;Anderson, 2009). Studies that directly access canopy birds generally involve observations from towers placed at the height of emergent trees (Greenberg, 1981;Loiselle, 1988;Naka, 2004;Anderson and Naka, 2011), platforms (Bouricius et al, 2002;Peña-Foxon and Díaz, 2012) and walkways, where mist nets can also be employed (Rahman, 2002), or cranes with more sophisticated technology (Shaw, 2002).…”

Section: Introductionmentioning

confidence: 99%

Bird assemblage mist-netted in an Atlantic Forest area: a comparison between vertically-mobile and ground-level nets

Vecchi

Alves

2015

Braz. J. Biol.

View full text Add to dashboard Cite

Mist nets may be opened at different heights in the forest, but they are seldom used over 3 m above the ground. We used two different methods to compare species richness, composition, and relative abundance and trophic structure of the bird assemblage at Ilha Grande (with a 290 birds standardization): conventional ground-level nets (0-2.4 m height range) and elevated nets (0-17 m) with an adjustable-height system (modified from Humphrey et al., 1968) that we call vertically-mobile nets. There were significant differences in capture frequencies between methods for about 20% of the species (Chi-squared test, P<0.05), and the two methods caught different assemblages. Ground-level nets recorded less species, and they comparatively overestimated mainly Suboscine insectivores and underestimated frugivores and nectarivores. Different sampling methods used at the same location may result in very different diagnoses of the avifauna present, both qualitatively and quantitatively. We encourage studies involving mist net sampling to include the upper strata to more accurately represent the avifauna in Atlantic Forest.Keywords: canopy, high nets, mist net sampling, trophic structure, vertical stratification. Assembleia de aves capturadas em redes de neblina em uma área de MataAtlântica: uma comparação entre redes verticalmente móveis e no nível do solo ResumoRedes-de-neblina podem ser abertas a diferentes alturas na floresta, mas raramente são usadas acima de 3 m do chão. Usamos dois diferentes métodos para comparar riqueza, abundância relativa de espécies e estrutura trófica da assembleia de aves da Ilha Grande (com a padronização de 290 indivíduos): redes convencionais no nível do solo (0-2,4 m de altura) e redes bandeira (0-17 m) com um sistema de ajuste de altura (modificado de Humphrey et al., 1968) que denominamos redes verticalmente móveis. Houve diferenças significativas nas frequências de capturas entre os métodos em cerca de 20% das espécies (teste Qui-quadrado, P<0,05), e os dois métodos capturaram diferentes assembleias. Redes de neblina no nível do solo registraram menos espécies, e comparativamente superestimaram principalmente espécies insetívoras de Suboscine, e subestimaram frugívoras e nectarívoras. Métodos diferentes de amostragem usados em uma mesma localidade podem resultar em uma diagnose bem distinta da avifauna presente, tanto qualitativa como quantitativamente. Recomendamos que estudos envolvendo amostragens com redes-de-neblina incluam os estratos superiores para representar mais acuradamente a avifauna na Mata Atlântica.Palavras-chave: dossel, redes-bandeira, amostragem com redes-de-neblina, estrutura trófica, estratificação vertical.

show abstract

“…Birds were also categorized according to seven habitat categories within Twin Cays. These categories were adapted and modified from schemes of Naka (2004). They are: (1) AIR =overhead; (2) AQU = aquatic; (3) AQUE = aquatic edge; (4) AQUF = aquatic fields (mud flats, wet sandy beaches and marshy fields); (5) C = canopy; (6) U = lower strata (understory and midstory); (7) A = found anywhere within the understory and canopy.…”

Section: Introductionmentioning

confidence: 99%

Winter and summer bird communities of Twin Cays, Belize

Mitten¹,

McKeon²,

Feller³

2004

Atoll Research Bulletin

View full text Add to dashboard Cite

Avian species richness and abundance were studied in order to characterize the bird fauna of Twin Cays, Belize. Auditory and visual surveys were conducted for both migratory and resident species during winter and summer seasons. The Mangrove Yellow Warbler was the most common bird species on the islands in both seasons, with an estimated mean density of 13.4 birdsha during the winter and 10.9 birdsha in the summer. The importance of mangrove habitats to a diversity of migratory passerines and resident breeding birds along the Mesoamerican Barrier Reef is supported with 56 species of 20 families recorded from the islands.

show abstract

Structure and Organization of Canopy Bird Assemblages in Central Amazonia

Cited by 17 publications

References 24 publications

Spatial Variation in Bird Community Composition in Relation to Topographic Gradient and Forest Heterogeneity in a Central Amazonian Rainforest

Spatial Variation in Bird Community Composition in Relation to Topographic Gradient and Forest Heterogeneity in a Central Amazonian Rainforest

Bird assemblage mist-netted in an Atlantic Forest area: a comparison between vertically-mobile and ground-level nets

Winter and summer bird communities of Twin Cays, Belize

Contact Info

Product

Resources

About