Andrei Langeloh Roos | ICMBio (original) (raw)

Papers by Andrei Langeloh Roos

Fernando de Noronha is one of few archipelagos of Brazil. These islands harbor five species of la... more Fernando de Noronha is one of few archipelagos of Brazil. These islands harbor five species of land birds: two introduced species (House Sparrow, Passer domesticus, and Cattle Egret, Bubulcus ibis), one widespread dove (Eared Dove, Zenaida auriculata) and two endemic passerines. The two endemic species, Noronha Vireo (Vireo graci‐ lirostris) and Noronha Elaenia (Elaenia ridleyana), have been classified as 'Near Threatened' and 'Vulnerable', respec‐ tively. Here, we quantified the abundance of land birds and correlated it to habitat features to assess potential habitat preferences. We carried out 120 five‐minute point counts in October 2009, and correlated bird abundance with per‐ centages of woodland, bushes, low herbs, bare ground, and man‐made habitats in each sample. The abundance of Noronha Vireo and Noronha Elaenia was positively correlated with woodland and bushes cover. The Eared Dove was associated to sites with bare ground, the House Sparrow with man‐made habitats, and the Cattle Egret with low vege‐ tation sites. Abundances of Noronha Vireo and Noronha Elaenia were significantly higher in sites with natural vegeta‐ tion than in human‐influenced areas. The association between these species and areas with high native vegetation cover highlights their potential vulnerability to human disturbance.

Brazilian Journal of Ornithology, Jun 2014

In 1819, Johan Baptist Ritter von Spix explored the dry woodlands along the Rio São Francisco, ne... more In 1819, Johan Baptist Ritter von Spix explored the dry woodlands along the Rio São Francisco, near the village of Juazeiro, in the deep interior of the Brazilian northeast (Juniper 2003). Among the specimens he collected, was a small blue macaw. That species, first observed by Georg Marcgrave when he has working in Pernambuco during the XVII Century, is now known as Spix's Macaw (Cyanopsitta spixii), and was known to inhabit the gallery forests near Curaçá, a small town located some 90 km east of Juazeiro, in the state of Bahia. Curaçá not only represents the type locality of the blue macaw collected by Spix, but also remained the last stronghold of this species until the end of the XX century, when the last known individual in the wild disappeared (Silveira and Straube 2008). The presence of this global rarity near the little village of Curaçá attracted many ornithologists to the region, particularly during the 1990s, but their aBStract: The region of Curaçá was one of the first regions of the Brazilian northeast to be ornithologically explored, and is known as the type locality and last stronghold of the Spix's Macaw (Cyanopsitta spixii), now extinct in the wild. The region of Curaçá has been considered of high conservation importance, particularly for holding some of the last relicts of Caraíba (Tabebuia caraiba) gallery forest in the Caatinga, and for representing the most obvious place to start a reintroduction program for C. spixii. Despite international interest in the plight of the macaw and frequent visits by ornithologists in the last 30 years, no general avian survey has been undertaken in the region. In this paper, we present data from three independent field seasons in the area, conducted in 1997-98, 2000, and 2011. We include data on 204 bird species recorded in the region, including 28 taxa endemic to the Caatinga. We present an analysis of the species present in the region, in relation to their preferred habitats and include natural history and breeding data for many of them. In particular, we include our observations on the last wild individual of C. spixii, and describe the nest and breeding behavior of Compsothraupis loricata. We also present an appendix with the list of all avian species recorded in the area, including the field season when these records were obtained, their seasonal and conservation status, the main habitats and localities where each record was obtained, a quantitative assessment of abundance for part of the species, and documentation (specimen, photograph, or audio recording) available for each species. We conclude that the region of Curaçá is particularly species rich, and that a great part of this avian diversity results from its high habitat heterogeneity, which includes arboreal and shrubby Caatinga, gallery forests, riverine riparian habitats along the Rio São Francisco, and open areas and artificial ponds, which are particularly important for aquatic birds.

Atualidades Ornitologicas, 2013

Revista Brasileira de …, 2012

: história e tendências populacionais. O presente trabalho discorre sobre a colonização da garça-... more : história e tendências populacionais. O presente trabalho discorre sobre a colonização da garça-vaqueira (Bubulcus ibis) no Arquipélago de Fernando de Noronha, estabelecida na década de 1980, avaliando as tendências populacionais e seus possíveis impactos sobre as espécies nativas. Dados primários e históricos de estimativas populacionais foram ajustados a modelos de regressão não-linear para o cálculo de taxas intrínsecas de crescimento (r) e de incremento anual (λ) para diferentes períodos. Esses apontam que, na primeira década a espécie era irregular no arquipélago, mas nos anos subsequentes apresentou um crescimento exponencial abrupto (r = 0,302 aves/ano e λ = 1,352), chegando a uma população estimada em 655 (DP = 13) indivíduos em 2005. Posteriormente, passaram a ser aplicadas medidas de controle populacional pelo governo local, o que resultou em uma diminuição progressiva em sua abundância, contudo, a eficácia dos métodos diminuiu e a população mostrou sinais de uma acelerada recuperação (r = 1,147; λ = 3,147). Essas experiências sugerem que os esforços descontínuos e pontuais no manejo de garças-vaqueiras, ou sobre apenas uma fração parcial de uma população, tendem a funcionar apenas como medidas mitigatórias, considerando a capacidade na reposição de suas populações.

Revista Brasileira de …, 2009

biological data of Puffinus lherminieri banded in Fernando de Noronha archipelago during 2005 and... more biological data of Puffinus lherminieri banded in Fernando de Noronha archipelago during 2005 and 2006. This study reports on banding and biometry data of Puffinus lherminieri from the Fernando de Noronha Archipelago taken during the 2005 and 2006 breeding seasons. Nesting and conservation strategies are also discussed.

Birds of the Cabo Orange National Park: a field guide

Report of the Brazilian National Banding System (1986-1995). This report summarizes the wild bird... more Report of the Brazilian National Banding System (1986-1995). This report summarizes the wild bird banding activities with CEMAVE’s bands at Brazil between 1986 and 1995. During this period, 133 banders have marked 202,999 birds, whose 182,109 were ringed at Brazil (89.71%), 20,002 at Antarctica and the rest of it at Uruguay, Colombia, Peru and Argentina. This corresponds to a total of 819 species from 83 families, where 805 species (98.29%) have been banded at Brazil. The most common species were: Thalasseus sandvicensis (18,512), Zenaida auriculata (11,928) and Dendrocygna viduata (11,656). It also presents the data of 2,732 recoveries of birds banded with CEMAVE’s bands in South America, North America, Central America, Oceania, Africa and yet in Antarctica, in that same period. The three most recovered species were Sula dactylatra (375), Dendrocygna bicolor (372) and Netta peposaca (304).

Report of the National Banding System (1973-1985). This report summarizes the activities of bird ... more Report of the National Banding System (1973-1985). This report summarizes the activities of bird ringing in Brazil during years 1973 trough 1985. During this period, 59 ringers participated in the marking of of 68,060 birds, where 62,316 were ringed in Brazil (91.6%), 5,375 in Antarctica (7.9%) and 369 (0.5%) in Colombia, using metal rings of the Brazilian Environment Agency (CEMAVE). This total corresponds of 597 species of 73 families, where 557 (93.3%)557 (93.3%) have been marked in Brazil. The report also shows data of 669 recoveries, the most in Brazil (95.2% of total), though others have ocurred in other countries in North America, South America, Oceania and Africa, and even in Antarctica.

Ornithologia, 2006

RESUMO: Avifauna da região do Lago de Sobradinho: composição, riqueza e biologia. A Bacia Hidrogr... more RESUMO: Avifauna da região do Lago de Sobradinho: composição, riqueza e biologia. A Bacia Hidrográfica do Rio São Francisco (BHSF) possui grande parte de sua área dentro do bioma caatinga que é um importante centro de endemismo de aves na América do Sul, mas com conhecimento sobre sua avifauna ainda reduzido. Visando contribuir para o aprofundamento do conhecimento sobre a avifauna existente na bacia, foram realizados inventários avifaunísticos em seis áreas de caatinga na área de influência do Lago de Sobradinho, uma região considerada de grande importância biológica para conservação da biodiversidade do bioma. Através de censos visuais e capturas com redes-de-neblina foram registradas 145 espécies de aves, pertencentes a 43 famílias. Foram registradas oito espécies consideradas endêmicas do bioma caatinga, 3 globalmente quase ameaçadas de extinção e 3 espécies consideradas de alta sensibilidade à distúrbios humanos, o que indica a importância dessas áreas para a conservação desses taxa. Entretanto, as áreas estudadas apresentam alterações antrópicas e ausência de registros de algumas espécies endêmicas, que são consideradas ameaçadas ou de alta sensibilidade a distúrbios humanos, o que pode ser um indicativo da perda local de espécies. Com um esforço de amostragem de 3.705 horas-rede foi capturado um total de 904 indivíduos de 79 espécies, o que resultou em índices de abundância de espécies (taxas de capturas), dados quantitativos ainda não publicados sobre a caatinga. São também apresentados dados inéditos sobre biometria e biologia de diversas espécies da caatinga, como mudas de penas e placas de incubação, incluindo espécies endêmicas a este Bioma. Os dados analisados sugerem a estação reprodutiva para a região entre os meses de outubro a dezembro. PALAVRAS-CHAVE. Caatinga, bacia do Rio São Francisco, redes-de-neblina, biometria, conservação.

Ararajuba, 2003

A revision of records of Phoebetria Reichenbach, 1853 from southern Brazil and first documented r... more A revision of records of Phoebetria Reichenbach, 1853 from southern Brazil and first documented record of Phoebetria palpebrata (Forster, 1785) (Procellariiformes: Diomedeidae) from Santa Catarina. In recent decades several records of the sooty albatross (Phoebetria spp.) have been reported on the Brazilian coast. However, almost all reports were based on sightings only, or were identification errors. Concrete evidence of the occurrence of these species along the southern Brazilian coast is lacking. The finding of a live Phobetria palpebrata in Florianópolis, Santa Catarina, is presented herein. The bird was measured, photographed and is now in the MZUSP collection. This is the first documented record of this species in southern Brazil.

Bird Conservation International, Jun 2002

The island of Santa Catarina lies in the Atlantic Forest Domain of southern Brazil, one of the mo... more The island of Santa Catarina lies in the Atlantic Forest Domain of southern Brazil, one of the most threatened ecosystems on the planet. It holds a wide variety of habitats, ranging from sand dune 'restingas' to mature rain forest. We report, for the first time, a survey of the bird species and their conservation status for the different habitats present on the island. We recorded 269 bird species of 54 families (25 species were seabirds). More than 50% (140) of the total number of species were residents or probable residents, 20% (58) were visitors and a relatively high number of species (61, 23%) had indeterminate residential status. Nearly 15% (35 species) of the 244 landbird species observed were endemic to the Atlantic Forest. Habitat specificity was recorded for 40% (97 species). We recorded one Endangered (Solitary Tinamou Tinamus solitarius), one Vulnerable (White-necked Hawk Leucopternis lacernulata), and three Near-threatened species (Azure Jay Cyanocorax caeruleus, Azure-shouldered Tanager Thraupis cyanoptera, Black-backed Tanager Tangara peruviana). We also recorded six locally threatened species that we predict will become extinct in the near future. The future for the birds of the island is uncertain, especially for habitat specialists, due to habitat loss for resort developments, and a lack of concern by the government and local people.

Reproductive and alimentary aspects of Swallow-tailed Kite Elanoides forficatus (Falconiformes: A... more Reproductive and alimentary aspects of Swallow-tailed Kite Elanoides forficatus (Falconiformes: Accipitridae) in Santa Catarina Island, Brazil

Melopsittacus, 2000

New records for birds in the Parque Estadual do Morro do Diabo, São Paulo State, Brazil