15 documents found, page 1 of 2
Pervasive gaps in Amazonian ecological research
Carvalho, Raquel L.; Resende, Angelica F.; Barlow, Jos; França, Filipe M.; Moura, Mario R.; Maciel, Rafaella; Alves-Martins, Fernanda; Shutt, JackBiodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain underst...
Unraveling the accumulation and localization of selenium and barium in Brazil n...
da Silva Junior, Ediu Carlos; Duran, Nádia Marion; de Lima Lessa, Josimar Henrique; Ribeiro, Paula Godinho; de Oliveira Wadt, Lúcia HelenaMade available in DSpace on 2022-04-28T19:48:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-03-01; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG); Brazil nuts are native from the Amazon rainforest and their nuts are consumed worldwide having good sensory acceptability. However, knowledge gaps remain concerning el...
Geochemistry of selenium, barium, and iodine in representative soils of the Bra...
da Silva Junior, Ediu Carlos; de Oliveira Wadt, Lúcia Helena; da Silva, Kátia Emídio; de Lima, Roberval Monteiro Bezerra; Batista, Karine DiasMade available in DSpace on 2022-04-28T19:52:03Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-07-01; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Empresa Brasileira de Pesquisa Agropecuária; Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG); The Amazon rainforest is a heterogeneous ecosystem an...
Carbon emissions in hydromorphic soils from an estuarine floodplain forest in t...
Lira-Guedes, Ana Cláudia; Leal, Géssica de Almeida; Fischer, Graciela Redies; Aguiar, Leonardo José Gonçalves; Melém Júnior, Nagib JorgeA produção de dióxido de carbono (CO2) do solo de várzea está relacionada às atividades biológicas, interagindo com sua dinâmica de inundação e manejo. Compreender a forma pela qual práticas de manejo de açaizais afetam as dinâmicas da produção de CO2 é importante, pois elas podem aumentar a emissão em relação à floresta. O objetivo do trabalho foi quantificar o fluxo de CO2 do solo hid...
Biased-corrected richness estimates for the Amazonian tree flora
ter Steege, Hans; Prado, Paulo I.; Lima, Renato A. F. de; Pos, Edwin; de Souza Coelho, Luiz; de Andrade Lima Filho, Diogenes; Salomão, Rafael P.Made available in DSpace on 2020-12-12T01:28:32Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-12-01; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Amazonian forests are extraordinarily diverse, but the estimated species richness is very much debated. Here, we apply an ensemble of parametric estimators and a novel technique that includes conspecific spatial aggregation to an exten...
Rarity of monodominance in hyperdiverse Amazonian forests
ter Steege, Hans; Henkel, Terry W.; Helal, Nora; Marimon, Beatriz S.; Marimon-Junior, Ben Hur; Huth, Andreas; Groeneveld, Jürgen; Sabatier, DanielMade available in DSpace on 2020-12-12T01:40:04Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-12-01; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Tropical forests are known for their high diversity. Yet, forest patches do occur in the tropics where a single tree species is dominant. Such “monodominant” forests are known from all of the main tropical regions. For Amazonia, we sam...
Biased-corrected richness estimates for the Amazonian tree flora
ter Steege, H.; Prado, Paulo I.; Lima, Renato A.Fde; Pos, Edwin T.; Coelho, Luiz Souza de; Lima Filho, Diógenes de Andrade; Salomão, Rafael PaivaAmazonian forests are extraordinarily diverse, but the estimated species richness is very much debated. Here, we apply an ensemble of parametric estimators and a novel technique that includes conspecific spatial aggregation to an extended database of forest plots with up-to-date taxonomy. We show that the species abundance distribution of Amazonia is best approximated by a logseries with aggregated individuals,...
First record of pouteria franciscana baehni (Chrysophylloideae, sapotaceae) in ...
Vasconcelos, Caroline da Cruz; Terra-Araujo, Mário Henrique; Lira-Guedes, Ana Cláudia; Guedes, Marcelino Carneiro; Costa, Janaina Barbosa PedrosaThis is the first record of Pouteria franciscana Baehni (Chrysophylloideae, Sapotaceae) in Amapá state, Brazil. We provide a brief description as well as a distribution map, illustrations, and a table with useful features to distinguish P. franciscana from its morphologically related Amazonian species. Using geographic data and applying IUCN criteria, we assign the status as Least Concern for P. franciscana. © ...
Rarity of monodominance in hyperdiverse Amazonian forests
ter Steege, H.; Henkel, Terry W.; Helal, Nora; Marimon, Beatriz Schwantes; Marimon Júnior, Ben Hur; Huth, Andreas; Groeneveld, Jürgen J.Tropical forests are known for their high diversity. Yet, forest patches do occur in the tropics where a single tree species is dominant. Such “monodominant” forests are known from all of the main tropical regions. For Amazonia, we sampled the occurrence of monodominance in a massive, basin-wide database of forest-inventory plots from the Amazon Tree Diversity Network (ATDN). Utilizing a simple defining metric ...
Physical properties of Calycophyllum spruceanum Benth. wood according on the di...
Araújo, Breno Henrique Pedroso de; Sousa, Madson Alan Rocha de; Nascimento, Henrique Eduardo Mendonça; Zanuncio, Antônio José VinhaThe knowledge of the technological properties of the wood is important for the management and rational use of forest species. The study of the physical properties of Calycophyllum spruceanum wood aims to provide subsidies for timber production in estuarine floodplain forests. Samples were collected at base and top of the stem from 15 trees with different diameters to determine the physical properties (basic den...