Bryoflora of the municipalities of Soure and Cachoeira do Arari, on Marajó Island, in the state of Pará, Brazil

Brito, Eliete da Silva; Ilkiu–Borges, Anna Luiza

doi:10.1590/s0102-33062013000100013

Cited by 13 publications

(13 citation statements)

References 21 publications

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“…Lejeuneaceae was the most representative family in this study and this is in agreement with other surveys carried out in the Amazon (Gradstein and Costa, 2003;Ilkiu-Borges et al, 2004Lisboa and Tavares, 2008;Alvarenga and Lisboa, 2009;Moura et al, 2013;Brito and Ilkiu-Borges, 2013;Tavares-Martins et al, 2014). The results confirmed it as one of the richest families in…”

Section: Discussionsupporting

confidence: 92%

“…The genera Lejeunea, Cheilolejeunea, Ceratolejeunea, Fissidens, Calymperes and Syrrhopodon are often the most representative in Pará (Santos and Lisboa, 2008;Moraes and Lisboa, 2009;Brito and Ilkiu-Borges, 2013;Moura et al, 2013), and therefore this result was also predictable.…”

Section: Guild Fragmentsmentioning

confidence: 94%

“…Studies on bryophytes in the state of Pará were performed in different forest formations and various parts of the state as in the surroundings of the Lake Tucuruí (Ilkiu-Borges et al, 2004;Garcia et al, 2014), Serra dos Carajás (Moraes and Lisboa, 2006), Caxiuanã (Alvarenga and Lisboa, 2009;, metropolitan region of Belém (Lisboa and Ilkiu-Borges, 1995;Moura et al, 2013), Marajó Island (Lisboa et al, 1999;Brito and Ilkiu-Borges, 2013) and northeastern Pará (Santos and Lisboa, 2008;Lisboa and Tavares, 2008;Tavares-Martins et al, 2014). In the southwestern state, it is recorded only the inventory held by Lisboa and Ilkiu-Borges (2001) in São Luiz do Tapajós, in the municipality of Itaituba.…”

Section: Introductionmentioning

confidence: 99%

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Bryophytes in fragments of Terra Firme forest on the great curve of the Xingu River, Pará state, Brazil 1 Part of Master's Dissertation of the first author.

et al. 2015

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Microclimatic conditions of tropical forest favour the high richness of bryophytes, which by being sensitive to environmental changes, are important indicators of habitat conditions. The aim of this study was to determine the richness and species composition of the bryophyte flora in fragments of terra firme forest on the great curve of the Xingu River, Pará state, Brazil. The collections were made in August and September 2012 in 14 fragments, in which were installed two plots per fragment, one at the edge and one inside, measuring 10 × 10 m each. The results showed 77 species in 45 genera and 18 families. Lejeunea setiloba Spruce and Marchesinia brachiata (Sw.) Schiffn. are new records for Pará state. The richness families in this study were the ones typically found in tropical forest surveys. A high richness of rare species in comparison to common ones, a pattern usually observed for plants in tropical forests was not reported in this study, probably due to historical fragmentation and disturbance in the area. The richness and species composition were determined mainly by the physiognomic characteristics of the studied forest fragments.Keywords: brioflora, Amazonian flora, liverworts, mosses. Briófitas em fragmentos florestais de terra firme na região daVolta Grande do Xingu, Pará, Brasil ResumoAs condições microclimáticas das florestas tropicais favorecem elevada riqueza de briófitas, que por serem sensíveis às alterações ambientais, são importantes indicadoras das condições dos habitats. O objetivo deste trabalho foi determinar a riqueza e a composição florística da brioflora de fragmentos florestais de terra firme na região da Volta Grande do Xingu, Pará, Brasil. As coletas foram realizadas em Agosto e Setembro de 2012, em 14 fragmentos e em cada um destes foram plotadas duas parcelas, uma na borda e outra no interior, medindo 10 × 10 m (cada). Foram registradas 77 espécies, distribuídas em 45 gêneros e 18 famílias. Lejeunea setiloba Spruce e Marchesinia brachiata (Sw.) Schiffn. são novos registros para o Pará. As famílias mais ricas neste estudo foram aquelas tipicamente encontradas em levantamentos em florestas tropicais. A elevada riqueza de espécies raras em comparação às comuns, padrão comumente reportado para plantas em florestas tropicais, não foi observada, provavelmente devido ao histórico de fragmentação e distúrbios na área de estudo. A riqueza e a composição de espécies foram determinadas principalmente pelas características fisionômicas dos fragmentos estudados.Palavras-chave: brioflora, flora da Amazônia, hepáticas, musgos.

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Section: Discussionsupporting

confidence: 92%

Section: Guild Fragmentsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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Bryophytes in fragments of Terra Firme forest on the great curve of the Xingu River, Pará state, Brazil 1 Part of Master's Dissertation of the first author.

et al. 2015

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“…Three distinct ecological regions can be found on the island: dense forests predominate in the western half; successional formations or alluvial fields cover almost its entire eastern half; and Cerrado (natural grasslands) (BritO & ilkiu-BOrgeS 2013) predominates in small areas of the central-north and south eastern regions of the island (radam 1974) (Fig. 1).…”

Section: Methodsmentioning

confidence: 99%

Snake assemblages of Marajó Island, Pará state, Brazil

Rodrigues

Maschio

Prudente

2016

Zoologia (Curitiba)

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ABSTRACT. We describe the diversity, natural history and structure of snake assemblages from Marajó Island, state of Pará, Brazil, after analyzing 439 specimens deposited in herpetological collections. We tested the hypothesis that snake assem- on habit and habitat. In all, 19 species were exclusive to forest areas, 10 were exclusive to open areas and 26 species were recorded in both areas. Our results revealed greater richness for forested areas, probably due to greater habitat heterogeneity.The species composition for forested area in Marajó was similar to that found in other Amazonian assemblages, while that for open areas was more similar to the Pantanal region than other open area assemblages. The general structure of the snake assemblage of Marajó was dominated by anurophagous, terrestrial and diurnal species. Terrestrial, arboreal and semi-arboreal snakes showed a seasonal offspring production pattern, while the pattern for aquatic and semi-aquatic species was aseasonal.The structure of assemblages was influenced by both historical and ecological factors. KEY WORDS. Amazon, assemblage, functional groups, herpetofauna.GM Rodrigues et al.ZOOLOGIA 33(1): e20150020 | DOI: 10.1590/S1984-4689zool-20150020 2 / 13 produced a list of 38 snake species. Subsequently, yuki & SantOS (1996) listed 52 species of snakes for these two islands using specimens deposited in the MPEG. This set of data resulted in a list of snake species for the island but did not include details about their structure and functional groups.Given that Marajó Island includes both densely forested and open areas, we test the hypothesis that their snake assemblages are distinct with regard to structure, composition and functional groups. Additionally, we compared the snake composition of forested versus open areas of Marajó with comparable assemblages in other regions of Brazil. We provided more detailed information on natural history, including diet, reproduction and species distribution throughout the island. MATERIAL AND METHODSMarajó Island, located between the Brazilian states of Amapá and Pará (0°59'39"S, 49°44'25"W), has an area of approximately 49,000 km 2 (gOulding et al. 2003), being delimited to the south by the Pará River, to the north by the Atlantic Ocean, to the east by the Marajó Bay and to the west by the mouth of the Amazon River. Three distinct ecological regions can be found on the island: dense forests predominate in the western half; successional formations or alluvial fields cover almost its entire eastern half; and Cerrado (natural grasslands) (BritO & ilkiu-BOrgeS 2013) predominates in small areas of the central-north and south eastern regions of the island (radam 1974) (Fig. 1). Our main objective was to test if there are differences between the snakes assemblages of forested and open areas of the island. To make the comparison more robust we considered both the successional formations and the Cerrado together as comprising open habitat.There is a distinct relationship between the vegetational distribution on the island...

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“…Steph., exemplos de espécies que foram pouco frequentes nas áreas de estudo e que também são pouco coletadas no Estado, mas já foram reportadas por outros estudos no Estado (Tavares et al 2006, Moraes & Lisboa 2009, Brito & Ilkiu-Borges 2013.…”

Section: Agradecimentosunclassified

Brioflora de duas florestas de terra firme na Área de Proteção Ambiental do Lago de Tucuruí, PA, Brasil

Garcia

Ilkiu–Borges

Tavares-Martins

2014

Hoehnea

Self Cite

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-(Bryoflora of two terra-firme forests in the Área de Proteção Ambiental do Lago de Tucuruí, Pará State, Brazil). The aim of this study was to investigate the richness of bryophytes (Bryophyta and Marchantiophyta) in two Wildlife Protection Areas at the Environmental Protection Area of Tucuruí Lake and to compare these results with the records of other mainland areas in the state of Pará. The sampling effort by area was of 200 botanical samples. In total, 90 species, 61 liverworts, and 29 mosses were registered, which represent 25% of the bryoflora of Pará State. Cololejeunea sicaefolia (Gottsche) Pócs & Bernecker and Cololejeunea planissima (Mitt.) Abeyw. are new records for the Brazilian Amazon and Americas, respectively. The richness found, especially of taxa rarely or never before collected in the state, reinforces the importance of conserving these areas.

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Bryoflora of the municipalities of Soure and Cachoeira do Arari, on Marajó Island, in the state of Pará, Brazil

Cited by 13 publications

References 21 publications

Bryophytes in fragments of Terra Firme forest on the great curve of the Xingu River, Pará state, Brazil 1 Part of Master's Dissertation of the first author.

Bryophytes in fragments of Terra Firme forest on the great curve of the Xingu River, Pará state, Brazil 1 Part of Master's Dissertation of the first author.

Snake assemblages of Marajó Island, Pará state, Brazil

Brioflora de duas florestas de terra firme na Área de Proteção Ambiental do Lago de Tucuruí, PA, Brasil

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