Distribuição e conservação das aves na região do Cantão, Tocantins: ecótono Amazônia/Cerrado

Pinheiro, Renato Torres; Dornas, Túlio

doi:10.1590/s1676-06032009000100019

Cited by 27 publications

(19 citation statements)

References 8 publications

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“…In evaluating the richness of birds reported to EESA, it is observed a higher number of species recorded in relation to several areas of the Cerrado (see Valadão 2012), as well as several other protected areas in Brazil (Motta-Junior et al 2008, Cavarzere et al 2009, Aleixo and Guilherme 2010, with methodological reservations. Its expressive number of species places EESA among the richest protected areas in terms of bird species in Brazil (Pacheco et al 2007, Pinheiro and Dornas 2009, Somenzari et al 2011, especially in terms of areas not primarily covered by forest. This richness becomes even more significant when we consider the reduced size of the EESA, less than 30,000 ha.…”

Section: Discussionmentioning

confidence: 99%

Birds of Estação Ecológica da Serra das Araras, state of Mato Grosso, Brazil: additions and review

Vitorino¹,

Frota²,

Castrillon³

et al. 2018

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We present an inventory, followed by a consolidated list, for the avifauna of Estação Ecológica da Serra das Araras (EESA), state of Mato Grosso, Brazil. In our expeditions, we identified 287 species, 82% of them documented. Of these, 28 species are new records for EESA. Six are threatened, such as Lophornis gouldii (Lesson, 1832). Other noteworthy records include the first documentation of Oxyruncus cristatus Swainson, 1821, for Mato Grosso. The consolidated list includes 458 species, of which 255 were assigned to the primary list and 203 to the secondary list. The significant number of species compiled herein places EESA among the most species-rich protected areas of Brazil, especially in regard to areas not predominantly covered by forest. In terms of species composition, this is a community typical of an ecotone environment, featuring many species characteristic of the Cerrado and the Amazon and some of the Pantanal wetland.

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Section: Discussionmentioning

confidence: 99%

Birds of Estação Ecológica da Serra das Araras, state of Mato Grosso, Brazil: additions and review

Vitorino¹,

Frota²,

Castrillon³

et al. 2018

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“…Sua raridade na EESGT pode ser devido às queimadas que aconteceram nos últimos anos. Fora da EESGT esta espécie foi encontrada sempre próxima a plantações, como observado também por Pinheiro & Dornas (2009) na Área de Proteção Ambiental da Ilha do Bananal e no Parque Estadual do Cantão.…”

Section: Resultsunclassified

As aves da Estação Ecológica Serra Geral do Tocantins, Centro do Brasil

Rêgo¹,

Silveira²,

Piacentini³

et al. 2011

Biota Neotrop.

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Abstract:The Estação Ecológica Serra Geral do Tocantins is one of the largest conservation units in Cerrado Biome. The avifauna of this locality was studied from January 25 to 15 February, 2008. We attempted to sample the different habitats found both within the EESGT as in its surroundings. In addition to audio and visual records, mist nets and shotguns were used to collect testimony material, which was deposited in the ornithological collection of the Museu de Zoologia da Universidade de São Paulo (MZUSP). The results were compared with data available from other conservation units nearby the EESGT. We recorded 254 bird species; among these 11 were considered endemic to the Cerrado region and other three considered threatened (Taoniscus nanus, Anodorhynchus hyacinthinus and Procnias averano). Three individuals belonging to the Picumnus genus also were collected; they presented unusual plumage and vocalization patterns, which suggests an undescribed taxon.

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“…The water temperature varies between 29° and 33°C throughout the year, and the annual mean temperature is 28°C (Pinheiro and Dornas ). The high fish diversity (298 species) and the diverse habitat in PEC attract many piscivorous predators, including several bird species, caimans ( Caiman crocodilus and Melanosuchus niger ), the giant otter ( Pteronura brasiliensis ), the pirarucu ( Arapaima gigas , one of the world's largest freshwater fish), and the Araguaian river dolphin ( Inia araguaiaensis ), among others.…”

Section: Methodsmentioning

confidence: 99%

Improving river dolphin monitoring using aerial surveys

et al. 2017

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Abstract. Obtaining correct abundance estimates to model population dynamics and promptly adjust management actions is a key goal of threatened species conservation. For elusive aquatic mammals like river dolphins, however, gathering such basic data can be extremely challenging. River dolphins in shallow waters are surveyed from canoes, with the (untested) assumption that visual counts are exhaustive estimates of animal population. These counts, however, should take into consideration that river dolphins usually emerge for very short periods and show very little of their body when surfacing. Recently, aerial survey methods have been introduced as new technology aiming to improve the reliability of wildlife censuses. Herein, we developed and tested a new survey method using a digital camera mounted on a blimp (non-rigid airship system) for aerial survey of river dolphins. We conducted our experiment by surveying the recently described Araguaian river dolphin (Inia araguaiaensis) during the low water season in the Parque Estadual do Cantão, a seasonally flooded lake system in the Amazonian forest, Brazil. Our survey, which was designed to monitor the river dolphin in 56 survey units within six main survey sectors, implied deploying two canoes navigating simultaneously: the first one with a single operator holding the blimp and recording data from its camera and the second one with three observers performing standard visual counts of dolphins. In contrast to common expectations, visual counts detected on average <75% of the dolphins recorded by the blimp's camera. Compared to the visual survey, the aerial method was able to detect more individuals, more dolphin groups, and to record more calves, which are usually difficult to detect. The differences in performance between the two methods were remarkable when surveyed sectors were larger. We showed that visual counts from canoes are less exhaustive surveys than aerial surveys, and provided a less expensive method (one operator needed to handle the blimp, compared to three visual observers) to count aquatic mammals. Our results can be used to correct current visual count estimates. With further development of blimps and drones in wildlife surveys, we foresee a promising future for the conservation and management of threatened species.

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Distribuição e conservação das aves na região do Cantão, Tocantins: ecótono Amazônia/Cerrado

Cited by 27 publications

References 8 publications

Birds of Estação Ecológica da Serra das Araras, state of Mato Grosso, Brazil: additions and review

Birds of Estação Ecológica da Serra das Araras, state of Mato Grosso, Brazil: additions and review

As aves da Estação Ecológica Serra Geral do Tocantins, Centro do Brasil

Improving river dolphin monitoring using aerial surveys

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Distribuição e conservação das aves na região do Cantão, Tocantins: ecótono Amazônia/Cerrado

Cited by 27 publications

References 8 publications

Birds of Esta&ccedil;&atilde;o Ecol&oacute;gica da Serra das Araras, state of Mato Grosso, Brazil: additions and review

Birds of Esta&ccedil;&atilde;o Ecol&oacute;gica da Serra das Araras, state of Mato Grosso, Brazil: additions and review

As aves da Estação Ecológica Serra Geral do Tocantins, Centro do Brasil

Improving river dolphin monitoring using aerial surveys

Contact Info

Product

Resources

About

Birds of Estação Ecológica da Serra das Araras, state of Mato Grosso, Brazil: additions and review

Birds of Estação Ecológica da Serra das Araras, state of Mato Grosso, Brazil: additions and review