The status of conservation of urban forests in eastern Amazonia

Amaral, Dário Dantas do; Vieira, Ima Célia Guimarães; Salomão, Rafael de Paiva; Almeida, Samuel; Jardim, Mário Augusto Gonçalves

doi:10.1590/s1519-69842012000200005

Cited by 61 publications

(14 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The results in the present study revealed that the species richness and abundance of Permanent Preservation Areas forests of Moju river were comparable to other terra firme forests of eastern Amazonia (Salomão et al, 1988;Amaral et al, 2012). The most of the individual stems belong to a relatively small number of species and many of these species are hyperdominants (Ter Steege et al, 2013).…”

Section: Discussionsupporting

confidence: 70%

“…It is highly frequent in the Neotropics (Ribeiro et al, 1999), and its richness in vegetation formations in Amazonia is mentioned by many authors who verified its wide geographic distribution and high ecological plasticity (Pires, 1973). In areas dominated by upland forests in Amazonia, the families Sapotaceae, Moraceae and Burseraceae are also referred to as the most species-rich in other floristic inventories in the region (Pires, 1973;Prance et al, 1976;Dantas et al, 1980;Amaral et al, 2012). Other families found in the present study were Chrysobalanaceae and Lecythidaceae, which in Amazonia exhibit the highest densities of individuals and species, along with the Fabaceae (Oliveira and Amaral, 2004).…”

Section: Discussionsupporting

confidence: 59%

“…In Moju municipality, Pará state, 29.3% of the PPAs were disturbed by land uses and the application of the new Brazilian Forest Code will result in the loss of ≈60% of forest vegetation from the PPAs in this county (Almeida and Vieira, 2014). The conservation role of PPAs presumably increases in highly deforested regions, such as the Belém Area of Endemism, that has reached at least 75% of the original extent and further extensive forest loss (Almeida and Vieira, 2010;Amaral et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Floristic and structural status of forests in permanent preservation areas of Moju river basin, Amazon region

et al. 2016

View full text Add to dashboard Cite

The goal of this study is to analyze the floristic patterns and the structure of disturbed and undisturbed upland forests, in Permanent Preservation Areas (PPAs) along the Moju river, in the Brazilian state of Pará. Trees with a diameter equal to or larger than 10cm at 1.30m from the ground (DBH) ≥10cm were analyzed for the upper stratum. For the middle stratum, individuals with DBH between 4.99 and 9.99cm were sampled. Forty-five families and 221 species were found in disturbed forests, and 43 families and 208 species in undisturbed forests. Floristic similarity was high between strata and between forest types, with values above 50%. Similarity was highest between middle strata. The most species-abundant families in undisturbed forests were Fabaceae, Sapotaceae, Chrysobalanaceae and Myrtaceae; the species with the highest density there were Eschweilera grandiflora, Licania sclerophylla and Zygia cauliflora. In disturbed forests, the dominant families were Fabaceae, Sapotaceae, Lecythidaceae and Melastomataceae. The Shannon-Wiener diversity index was 3.21 for undisturbed forests and 2.85 for disturbed forests. Non-metric multidimensional scaling (MDS) analysis did not group the forests by their floristic composition in both upper and middle strata. Overall, the PPA forests along the Moju river, even if disturbed, did not show major floristic changes but substantially change their structural characteristics.Keywords: remnant forests, Amazon, forest degradation.Comparação florística e estrutural de florestas em áreas de preservação permanente do rio Moju, região Amazônica ResumoEste estudo teve como objetivo analisar os padrões florísticos e a estrutura de florestas ripárias perturbadas e não perturbadas inseridas em Áreas de Preservação Permanente ao longo do rio Moju, Pará. A análise do estrato superior foi realizada em árvores com diâmetro a 1,30 m do solo (DAP) ≥10 cm. No estrato médio, amostrou-se os indivíduos com DAP entre 4,99 e 9,99 cm DAP. Nas florestas perturbadas foram encontradas 45 famílias e 221 espécies e nas florestas não perturbadas, 43 famílias e 208 espécies. A similaridade florística foi elevada entre os estratos e entre os tipos de florestas, alcançando valores maiores de que 50%. A maior semelhança foi encontrada entre os estratos médios. As famílias mais abundantes em espécies nas florestas não perturbadas foram Fabaceae, Sapotaceae, Chrysobalanaceae e Myrtaceae. As espécies com maiores densidades foram Eschweilera grandiflora, Licania sclerophylla e Zygia cauliflora. Nas florestas perturbadas, as famílias dominantes foram Fabaceae, Sapotaceae, Lecythidaceae e Melastomataceae. A diversidade (Shannon) nas florestas não perturbadas foi de 3,21, e nas florestas perturbadas, alcançaram 2,85. A ordenação feita pelo escalonamento multidimensional MDS, não agrupou as florestas por sua composição florística, tanto no estrato superior como no médio. Em geral, as florestas perturbadas das APPs do rio Moju, mesmo se perturbadas, não evidenciam grandes mudanças florísticas, mas apresentam alter...

show abstract

Section: Discussionsupporting

confidence: 70%

Section: Discussionsupporting

confidence: 59%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Floristic and structural status of forests in permanent preservation areas of Moju river basin, Amazon region

et al. 2016

View full text Add to dashboard Cite

show abstract

“…In response to the urbanisation process, natural areas were and are being increasingly occupied and degraded (Amaral et al, 2012), promoting a scenario of illegal occupations and financial speculation. The total area of land required to sustain an urban region, referred to as ecological footprint, is at least an order of magnitude greater than that contained within municipal boundaries (Rees, 1992).…”

Section: Urban Developmentmentioning

confidence: 99%

Addressing key ecological questions to support policy-making in Brazil

Almeida¹,

Pinto²,

Castro³

et al. 2013

Braz. J. Biol.

View full text Add to dashboard Cite

In Brazil, there is generally a lack of information flow between scientists and policy makers. Here, we address 29 ecological questions of high policy relevance in Brazil, in an attempt to encourage the participation of science in decision-making. Similar addresses have been made by British and American scientists (Fleishman et al., 2011;Sutherland et al., 2006), and it is our goal to bring such matters to the Brazilian reality. We had several meetings during an Ecosystem Ecology seminar held at the Federal University of Juiz de Fora and categorised our questions into five different topics. Brief introductory paragraphs are shown below each topic and the questions are presented subsequently without any order of relevance.

show abstract

“…Most of this remaining forest is heavily fragmented and degraded by recurrent selective‐logging and fire events, as well as overextraction of game animals and other nontimber forest resources (Almeida & Vieira ; Amaral et al. ). Although 11 of the 160 threatened avian taxa on the current Brazilian Red List are strictly Amazonian, 10 of these are restricted to the BCE (Machado et al.…”

Section: Introductionmentioning

confidence: 99%

Two Hundred Years of Local Avian Extinctions in Eastern Amazonia

Moura

Lees

Aleixo

et al. 2014

Conservation Biology

View full text Add to dashboard Cite

Local, regional, and global extinctions caused by habitat loss, degradation, and fragmentation have been widely reported for the tropics. The patterns and drivers of this loss of species are now increasingly well known in Amazonia, but there remains a significant gap in understanding of long-term trends in species persistence and extinction in anthropogenic landscapes. Such a historical perspective is critical for understanding the status and trends of extant biodiversity as well as for identifying priorities to halt further losses. Using extensive historical data sets of specimen records and results of contemporary surveys, we searched for evidence of local extinctions of a terra firma rainforest avifauna over 200 years in a 2500 km(2) eastern Amazonian region around the Brazilian city of Belém. This region has the longest history of ornithological fieldwork in the entire Amazon basin and lies in the highly threatened Belém Centre of Endemism. We also compared our historically inferred extinction events with extensive data on species occurrences in a sample of catchments in a nearby municipality (Paragominas) that encompass a gradient of past forest loss. We found evidence for the possible extinction of 47 species (14% of the regional species pool) that were unreported from 1980 to 2013 (80% last recorded between 1900 and 1980). Seventeen species appear on the International Union for Conservation of Nature Red List, and many of these are large-bodied. The species lost from the region immediately around Belém are similar to those which are currently restricted to well-forested catchments in Paragominas. Although we anticipate the future rediscovery or recolonization of some species inferred to be extinct by our calculations, we also expect that there are likely to be additional local extinctions, not reported here, given the ongoing loss and degradation of remaining areas of native vegetation across eastern Amazonia.

show abstract

The status of conservation of urban forests in eastern Amazonia

Cited by 61 publications

References 15 publications

Floristic and structural status of forests in permanent preservation areas of Moju river basin, Amazon region

Floristic and structural status of forests in permanent preservation areas of Moju river basin, Amazon region

Addressing key ecological questions to support policy-making in Brazil

Two Hundred Years of Local Avian Extinctions in Eastern Amazonia

Contact Info

Product

Resources

About