30 documents found, page 1 of 3
Boletim Atlas ODS Amazonas V.2 N.12 - Especial COVID-19
Pereira, Henrique dos Santos; Barbosa, Danilo Egle Santos; Lorenzi, Bruno Cordeiro; Silva, Suzy Cristina Pedroza da; Nelson, Bruce WalkerSubmitted by Henrique Pereira (hpereira@ufam.edu.br) on 2020-06-24T13:14:48Z No. of bitstreams: 2 boletim_ATLAS COVID-19 vol 2 nr 12.pdf: 2564098 bytes, checksum: 01fb84ebbd451f9f44364f654f380261 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5); Approved for entry into archive by DD BC (ddbc@ufam.edu.br) on 2020-06-24T19:12:50Z (GMT) No. of bitstreams: 2 boletim_ATLAS COVID-19 vol 2 ...
Observations On Flower Visitors To Couratari Tenuicarpa A.C. Smith And Bertholl...
Nelson, Bruce Walker; Absy, Maria Lúcia; Barbosa, Edelcilio Marques; Prance, Ghillean Tolmie
The Amazon Tall Tower Observatory (ATTO): Overview of pilot measurements on eco...
Andreae, Meinrat O.; Acevedo, Otávio C.; Araüjo, Alessandro Carioca de; Artaxo, Paulo; Barbosa, Cybelli G.G.; Barbosa, H. M. J.; Brito, Joel F.The Amazon Basin plays key roles in the carbon and water cycles, climate change, atmospheric chemistry, and biodiversity. It has already been changed significantly by human activities, and more pervasive change is expected to occur in the coming decades. It is therefore essential to establish long-term measurement sites that provide a baseline record of present-day climatic, biogeochemical, and atmospheric cond...
Natural forest disturbance and change in the brazilian amazon
Nelson, Bruce Walker
Storm intensity and old-growth forest disturbances in the Amazon region
B., Espírito-santo, F. D.; Keller, Michael; B., Braswell,; Nelson, Bruce Walker; Frolking, S.; Vicente, G.
Pollen collected by trigona williana (hymenoptera: apidae) in central amazonia
Sousa, Antonio Carlos Marques; Moura, C O; Nelson, Bruce Walker
Height-diameter allometry of tropical forest trees
Feldpausch, Ted R.; Banin, Lindsay F.; Phillips, Oliver L.; Baker, Timothy R.; Lewis, Simon L.; Quesada, Carlos Alberto; Affum-Baffoe, KofiTropical tree height-diameter (<i>H:D</i>) relationships may vary by forest type and region making large-scale estimates of above-ground biomass subject to bias if they ignore these differences in stem allometry. We have therefore developed a new global tropical forest database consisting of 39 955 concurrent <i>H</i> and <i>D</i> measurements encompassing 283 sites in 22 tropical countries. Utilising this data...
Conservation and management implications of nest-site selection of the sympatri...
Villamarín, Francisco; Marioni, Boris; Thorbjarnarson, John B.; Nelson, Bruce Walker; Botero-Arias, Robinson; Magnusson, William ErnestManagement of crocodilians is often based on source-sink dynamics, protecting breeding habitat and concentrating hunting in other areas. Nest distributions shed light on habitat use by breeding populations, which might be used as a basis for monitoring and management. The heterogeneous spatial distribution of Melanosuchus niger and Caiman crocodilus in Amazonia has been suggested to reflect past hunting pressur...
Retirada de folhas de buriti (Mauritia flexuosa, L. f.) e sua relação com a pro...
Hada, Aleksander Ribeiro; Alfaia, Sonia Sena; Nelson, Bruce Walker
Leaf phenology as one important driver of seasonal changes in isoprene emission...
Alves, Eliane Gomes; Tóta, Júlio; Turnipseed, Andrew A.; Guenther, Alex B.; Vega Bustillos, José Oscar W.; Santana, Raoni Aquino Silva deIsoprene fluxes vary seasonally with changes in environmental factors (e.g., solar radiation and temperature) and biological factors (e.g., leaf phenology). However, our understanding of the seasonal patterns of isoprene fluxes and the associated mechanistic controls is still limited, especially in Amazonian evergreen forests. In this paper, we aim to connect intensive, field-based measurements of canopy isopre...