{"id":146614,"date":"2014-04-15T16:00:24","date_gmt":"2014-04-15T19:00:24","guid":{"rendered":"http:\/\/revistapesquisa.fapesp.br\/?p=146614"},"modified":"2017-03-13T13:56:44","modified_gmt":"2017-03-13T16:56:44","slug":"birds-atlantic-forest","status":"publish","type":"post","link":"https:\/\/revistapesquisa.fapesp.br\/en\/birds-atlantic-forest\/","title":{"rendered":"Birds of the Atlantic Forest"},"content":{"rendered":"
\"Seven-colored

LUCIANO LIMA<\/span>Seven-colored Tanager (Tangara fastuosa<\/em>)
An endangered species endemic to the Atlantic Forest LUCIANO LIMA<\/span><\/p><\/div>\n

Despite having been deforested to the extent that only 10% of its original expanse remains, the Atlantic Forest is still literally in most Brazilians\u2019 back yard. One in every seven people in Brazil lives in an area legally defined as part of this biome, which stretches along the ocean on the eastern edge of this country and cuts a swath through 17 states, from Piau\u00ed to Rio Grande do Sul. Scientists have just concluded the most complete, up-to-date survey of the diversity of birds that inhabit the remaining areas of this coastal garden, which is under pressure from the growth of cities.<\/p>\n

Under the supervision of Lu\u00eds F\u00e1bio Silveira, curator of the ornithology collection at the University of S\u00e3o Paulo Zoology Museum (MZ-USP), 29-year-old ornithologist Luciano Lima has produced a report, more than 500 pages long, in which he lists every known bird species in the biome, summarizes its main characteristics and places of occurrence and updates its conservation status (endangered or not). It took him five years to review the scientific literature and visit nearly every Brazilian state that contains portions of the Atlantic Forest. \u201cThe only states I didn\u2019t visit were Sergipe and Mato Grosso do Sul,\u201d says Lima, who lives in Resende, Rio de Janeiro State, near Itatiaia National Park, where he has been watching birds since the age of 13.<\/p>\n

\"036-041_Aves_217\"<\/a>The sizeable numbers gleaned from the survey are revealing, and reinforce the biome\u2019s importance to the world of birds. The Atlantic Forest is home to 891 bird species, which account for about 45% of all species found in Brazil. Amazonia has more species\u2014about 1,300\u2014but its area is four times larger, according to the geographic boundaries used by the Brazilian Institute of Geography and Statistics (IBGE). Approximately one-fourth of the bird species\u2014213 in absolute numbers, or 24% of the total\u2014are endemic to the Atlantic Forest. In the language of biology, endemic species are those found exclusively in a given type of plant formation, and nowhere else. Another 17 species are nearly endemic, that is, they occur primarily in the Atlantic Forest, and only marginally in other biomes.<\/span><\/p>\n

A little more than 25% of all the species\u2014233 in absolute numbers\u2014are endangered, according to national and international lists of birds most likely to disappear from the planet. Not every endemic species is in danger, nor is every jeopardized species exclusive to the biome. Of the endangered species, however, 147 are endemic or nearly endemic to the Atlantic Forest. \u201cThat figure is really worrisome,\u201d Lima says. According to the survey, the Atlantic Forest also has 1,035 bird subspecies, of which 351 are endemic. \u201cThis is the first time that data on the occurrence of bird subspecies in this biome have been presented in a study,\u201d Silveira points out. In ornithology, the term \u201csubspecies\u201d refers to geographically isolated populations of a bird that are distinct from one another to some degree, but that have not been considered distinct enough to deserve species status. \u201cThis concept has been used indiscriminately in the Atlantic Forest, and many valid species of birds are \u2018hidden\u2019 beneath the name of a subspecies,\u201d the MZ-USP researcher comments.<\/span><\/p>\n

\"A

LUCIANO LIMA<\/span>A Saffron Toucanet (Pteroglossus bailloni<\/em>) LUCIANO LIMA<\/span><\/p><\/div>\n

Species inflation
\n<\/b>The data compiled and produced in Lima\u2019s study differ from other works published in recent decades. Some relatively recent surveys even point to the existence of more than a thousand species of birds in the Atlantic Forest. The disparities were largely expected and unavoidable. \u201cLima used clearer criteria, based on the natural features of the biome and the biogeographic aspects of the species, to define exactly what constitutes an Atlantic Forest area and determine which birds actually inhabited those sections,\u201d notes Silveira, thesis advisor to the young ornithologist, who completed his master\u2019s degree this year with the study. \u201cIn the past, other studies used the legal definition of the Atlantic Forest, which also includes areas adjacent to the biome but that are actually parts of the Cerrado, the Caatinga or the Pampa.\u201d<\/p>\n

The overly liberal approach that prevailed until recently has inflated the number of species described as inhabitants of the Atlantic Forest. Birds were included that, strictly speaking, live in the vicinity of that type of plant formation, but in more precise terms they inhabit segments of other biomes, according to Silveira and Lima. To mitigate this problem, birds that live predominantly in a 100-kilometer (km) strip along the borders of other biomes\u201450 km inside the legal boundaries of the Atlantic Forest and 50 km outside of them\u2014were not considered as belonging to that plant formation in the young ornithologist\u2019s survey.<\/span><\/p>\n

\"A

LUCIANO LIMA<\/span>A pair of Three-toed Jacamars (Jacamaralcyon tridactyla<\/em>), also endemic but in jeopardy of extinction. LUCIANO LIMA<\/span><\/p><\/div>\n

\u201cLima\u2019s work puts the house in order and is becoming a benchmark in terms of Atlantic Forest birds,\u201d says Jos\u00e9 Fernando Pacheco, a director of the Brazilian Ornithological Records Committee (CBRO), a forum associated with the Brazilian Ornithological Society that oversees the quality of data on the geographic distribution of birds in Brazil. \u201cNo one has ever devoted this much time to organizing the list of species in that biome. The adoption of any working criterion, of course, is always somewhat arbitrary, but the choices he has made are pertinent, and they make sense.\u201d<\/span><\/p>\n

More representative orders
\n<\/b>More than half the Atlantic Forest species mapped belong to the order Passeriformes, the popular passerines, which make up 55% of the known types of birds on Earth. According to Lima\u2019s study, there are 476 species of passerines in the biome. The birds in this order range from those that are commonplace in urban neighborhoods, such as sparrows, to little-known creatures that are endangered, for example, the Seven-colored Tanager (Tangara fastuosa<\/i>). This colorful bird, a little over 10 centimeters in length, is found only in sections of the Atlantic Forest between the states of Rio Grande do Norte and Alagoas.<\/p>\n

The second-most representative order is Apodiformes, with 53 species of hummingbirds and swifts. Ranking third are Charadriiformes, with 50 species of gulls and terns, followed by Accipitriformes (eagles and hawks, with 37 species), Piciformes (woodpeckers, toucans and aracaris, 36), Psittaciformes (macaws, parrots and parakeets, 31) and Gruiformes (gallinules, 25).<\/p>\n

\"Dusky-legged

LUCIANO LIMA<\/span>Dusky-legged Guan (Penelope obscura<\/em>)LUCIANO LIMA<\/span><\/p><\/div>\n

Even though it is the biome most widely studied by ornithologists, the Atlantic Forest still holds surprises. At times a new bird appears where it is least expected. This was true in the case of the first bird species endemic to the state of S\u00e3o Paulo, <\/span>Formicivora paludicola<\/i>, which occurs exclusively in marshes in the vicinity of Mogi das Cruzes. The <\/span>bicudinho-do-brejo-paulista<\/i>, or S\u00e3o Paulo Marsh Antwren, the popular name of the species, has just been described in a scientific paper. \u201cWho would have thought that 50 kilometers from my workspace there would be a new, as yet unidentified, species?\u201d comments Silveira, a co-author of the discovery (<\/span>see text<\/i><\/a>).<\/span><\/p>\n

The variety of shapes and sizes of birds in the Atlantic Forest offers an impressive sight, as witnessed by the images accompanying this article. At right, a Saffron Toucanet<\/a> (<\/em>Pteroglossus bailloni), a member of the order Piciformes, which includes 36 species. A noisy and relatively abundant kin of the toucan, it is endemic to the Atlantic Forest and measures about 35 centimeters (cm) in length. It occurs from southern Bahia State to Rio Grande do Sul, including Paraguay and Argentina. Photo at bottom shows a pair of Three-toed Jacamars<\/a> (<\/em>Jacamaralcyon tridactyla), also endemic but in jeopardy of extinction. Historically, records show only sparse populations of these 18-cm-long birds, between southern Bahia and northern Paran\u00e1 State. The photo on the following page shows an imposing Dusky-legged Guan<\/a> (<\/em>Penelope obscura), of the order Galliformes. Found throughout much of the Atlantic Forest, it can grow as large as 70 cm in length\u00a0<\/em><\/p>\n

Project<\/strong>
\n<\/span>Birds of the Atlantic Rainforest: species richness, composition and knowledge gaps (n\u00ba 2011\/17032-7<\/a>); Grant mechanism<\/b> Master\u2019s degree scholarship; Principal investigator<\/b> Lu\u00eds F\u00e1bio Silveira; Grant recipient <\/b>Luciano Lima; Investment<\/b> R$35,723.34 (FAPESP).<\/p>\n","protected":false},"excerpt":{"rendered":"Atlantic Forest biome is home to 891 species of birds","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[159],"tags":[224,266],"coauthors":[101],"class_list":["post-146614","post","type-post","status-publish","format-standard","hentry","category-science","tag-ecology","tag-zoology"],"acf":[],"_links":{"self":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/146614","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/comments?post=146614"}],"version-history":[{"count":0,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/146614\/revisions"}],"wp:attachment":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/media?parent=146614"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/categories?post=146614"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/tags?post=146614"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/coauthors?post=146614"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}