Studies on Holocene mangrove ecosystem dynamics of the Bragança Peninsula in north-eastern Pará, Brazil

Behling, Hermann; Cohen, Marcelo Cancela Lisboa; Lara, R. J.

doi:10.1016/s0031-0182(00)00239-x

Cited by 184 publications

(114 citation statements)

References 11 publications

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“…The result of Ellison and Stoddart (1991) study paleo-ecology research is frequently in use to support models of mangrove response to anthropogenic climate change. Extensive discussions on the topic can be found, for example, in Snedaker et al (1994) for the Florida coast in the USA; Behling et al (2001Behling et al ( , 2004, Toledo et al (2008a, b) and Guimarães et al (2010) for the north coast of Brazil; Tessler and Mahiques (1998) The interest in the subject of mangrove response to global climate change began to increase in the early 2000s, probably because of the 1997's IPCC report on climate change (IPCC 1997) and of the previous report from UNEP-UNESCO on the expected impact of climate change on mangroves, resulting from the 1992 Rio Conference (UNEP- UNESCO 1993). Considering only the responses related to geographical expansion and changes in area cover, in the first decade (1991)(1992)(1993)(1994)(1995)(1996)(1997)(1998)(1999)(2000)(2001) of the studied period, there were only 16 published papers on the subject.…”

Section: Resultsmentioning

confidence: 99%

Mangroves Response to Climate Change: A Review of Recent Findings on Mangrove Extension and Distribution

Godoy

Lacerda

2015

An. Acad. Bras. Ciênc.

122

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Mangroves function as a natural coastline protection for erosion and inundation, providing important environmental services. Due to their geographical distribution at the continent-ocean interface, the mangrove habitat may suffer heavy impacts from global climate change, maximized by local human activities occurring in a given coastal region. This review analyzed the literature published over the last 25 years, on the documented response of mangroves to environmental change caused by global climate change, taking into consideration 104 case studies and predictive modeling, worldwide. Most studies appeared after the year 2000, as a response to the 1997 IPCC report. Although many reports showed that the world's mangrove area is decreasing due to direct anthropogenic pressure, several others, however, showed that in a variety of habitats mangroves are expanding as a response to global climate change. Worldwide, pole ward migration is extending the latitudinal limits of mangroves due to warmer winters and decreasing the frequency of extreme low temperatures, whereas in low-lying coastal plains, mangroves are migrating landward due to sea level rise, as demonstrated for the NE Brazilian coast. Taking into consideration climate change alone, mangroves in most areas will display a positive response. In some areas however, such as low-lying oceanic islands, such as in the Pacific and the Caribbean, and constrained coastlines, such as the SE Brazilian coast, mangroves will most probably not survive.

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Section: Resultsmentioning

confidence: 99%

Mangroves Response to Climate Change: A Review of Recent Findings on Mangrove Extension and Distribution

Godoy

Lacerda

2015

An. Acad. Bras. Ciênc.

122

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“…As florestas de terra firme são formadas por algumas "ilhas" de composição vegetal heterogênea, com presença de espécies arbustivas e arbóreas, que representam uma vegetação-relíquia, mantida apesar da transgressão dos manguezais e dos campos salinos em direção à terra firme (BEHLING et al 2001). A composição vegetal dessas manchas (ilhas) de terra firme inclui espécies das famílias Simaroubaceae, Myrtaceae, Sapindaceae, Lecythidaceae, Arecaceae, Burseraceae, Ericaceae e Cecropiaceae (M.M.O.…”

Section: áRea De Estudounclassified

Dieta de Micoureus demerarae (Thomas) (Mammalia, Didelphidae) associada às florestas contíguas de mangue e terra firme em Bragança, Pará, Brasil

2006

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A dieta de Micoureus demerarae (Thomas, 1905) foi estudada em bosques de mangue e terra firme através de amostras estomacais e fecais. O número de indivíduos capturados foi inversamente proporcional à disponibilidade de frutos e insetos, sendo Coleoptera e Hemiptera as ordens de artrópodes mais consumidos e Passifloraceae e Arecaceae os frutos mais ingeridos. Desse modo, tanto a maior variabilidade de frutos como a alta produção destes durante a estação seca, parecem explicar o aumento da captura desses animais nos bosques de terra firme, dos quais são originalmente provenientes. Os itens alimentares sugerem que esta espécie possui uma dieta do tipo onívora, independentemente da sazonalidade ou distribuição dos recursos disponíveis.

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“…The new environmental conditions were associated with sea-level regression in northeastern Pará (Behling et al, 2001, Cohen et al, 2005b and are temporally correlated with the so-called Little Ice Age (Cohen et al,2005a). Ecozone 3 (younger than 520 ± 40 yr BP).…”

Section: P R O V a Smentioning

confidence: 95%

The use of diatoms for paleohydrological and paleoenvironmental reconstructions of Itupanema Beach, Pará State, Amazon Region, during the last millennium

Ribeiro¹,

Senna²,

Torgan³

2010

Rev. bras. paleontol.

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-Five sedimentary cores were collected on the ancient sedimentary clay deposits of Itupanema Beach, Barcarena town, Pará State, Amazon region, where diatom analysis was performed to infer the history of the paleoecological and paleohydrological changes during the last millennium. The results revealed 58 diatoms species among benthic and planktonic life forms. Correspondence analysis applied to relative abundance of diatoms and associated with sedimentary texture, OM contents and 14 C dating, defined three ecozones. The lower sandy ecozone 1 dated at 930 ± 40 14 C yr BP (Beta 217590) was dominated by the benthic/epipsammic species Staurosira obtusa, Staurosirella pinnata and Staurosirella crassa (nov. comb.), that indicated more hydrodynamic energy than in present days, originating a shallow sedimentary environment, under erosive conditions, unfavorable to the colonization of vegetation. The intermediate grey clay ecozone 2 that was observed only in the IT1 core, dated at 520 ± 40 14 C yr BP (Beta 217591) showed the prevalence of planktonic diatoms, providing evidence of a deeper and calmer environment, located in a probably protected area, with intense sedimentation of clay particles with abundant plant remains, colonized by mangrove forest and alluvial palm forest. The upper organic-clay to organic-sand ecozone 3 much younger than 520 ± 40 14 C yr BP, showed more agitated and erosive sedimentary conditions, however, with less energy than that in lower ecozones, indicated by higher abundance of A. granulata, strongly silicified. This new sedimentary environment allowed colonization by aquatic macrophyte vegetation which persists on the beach today.Key words: diatoms, taxonomy, tidal plain, estuaries, Amazon, Brazil.RESUMO -A análise de diatomáceas realizada em cinco testemunhos sedimentares obtidos de um antigo depósito sedimentar na praia de Itupanema, Barcarena, Estado do Pará, região amazônica, permitiu inferir a história das mudanças paleoecológicas e palaeohidrológicas durante o último milênio. Os resultados revelaram a presença de 58 espécies de diatomáceas, de hábitos bentônico e planctônico. A Análise de Correspondência foi aplicada aos dados de abundância relativa de diatomáceas e associada à textura sedimentar, teor de MO e datações 14 C, definindo três ecozonas. As ecozonas inferiores 1, datadas em 930 ± 40 14 C anos AP (Beta 217590), mostraram dominância de Staurosira obtusa, Staurosirella pinnata e Staurosirella crassa (comb. nov.), bentônicas/epipsâmicas, que indicaram maior energia hidrodinâmica que os dias atuais, em um ambiente sedimentar arenoso raso, erosivo, desfavorável para a colonização da vegetação. Na ecozona intermediária 2, com sedimentos argilo-orgânicos cinza e abundantes restos vegetais, observados somente em IT1, datados em 520 ± 40 14 C anos AP (Beta 217591), dominaram as diatomáceas planctônicas em um ambiente mais profundo e mais calmo, localizado em uma provável área protegida, colonizada por manguezal e floresta aluvial. As ecozonas superiores 3, argilo-orgânicas a ar...

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Studies on Holocene mangrove ecosystem dynamics of the Bragança Peninsula in north-eastern Pará, Brazil

Cited by 184 publications

References 11 publications

Mangroves Response to Climate Change: A Review of Recent Findings on Mangrove Extension and Distribution

Mangroves Response to Climate Change: A Review of Recent Findings on Mangrove Extension and Distribution

Dieta de Micoureus demerarae (Thomas) (Mammalia, Didelphidae) associada às florestas contíguas de mangue e terra firme em Bragança, Pará, Brasil

The use of diatoms for paleohydrological and paleoenvironmental reconstructions of Itupanema Beach, Pará State, Amazon Region, during the last millennium

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