Results 61 to 70 of about 700,041 (234)
Morphological correlates of fire-induced tree mortality in a central Amazonian forest. [PDF]
, 2003 Tree characteristics were recorded from 2829 standing trees in 24 0.25-ha terra firme forest plots in central Amazonia, 3 y after a surface fire had swept through the study area.
Peres, Carlos A. +2 more
core +4 more sources
Land use drives change in amazonian tree species
Anais da Academia Brasileira de Ciências: The Amazonian rainforest has been subjected to exceptionally high rates of land use change (LUC), primarily for pasture. We present here an analysis of the impact of LUC on trees from studies made in Pará state.
IMA CÉLIA G. VIEIRA
doaj +1 more source
Polymer International, EarlyView.Biosurfactant was produced by Pseudomonas aeruginosa using andiroba waste from Amazonia. A biosurfactant–alginate composite (Alg/BioS) was successfully synthesized via ionotropic gelation, and achieved up to 70% Cr6+ removal from water. Abstract Environmental contamination by heavy metals represents a significant challenge due to their persistence in ...
Paulo Diniz Austriaco +11 more
wiley +1 more source
Polymer International, EarlyView.Magnetic alginate beads, functionalized with copper ferrite, effectively remove 17‐β‐estradiol from Amazonian water, exhibiting optimized 238.65 μg g−1 capacity, fast 40 min kinetics, easy recovery, and successful remediation. Abstract The presence of endocrine‐disrupting compounds, such as 17‐β‐estradiol, in aquatic ecosystems poses a significant ...
Dante S Silva +10 more
wiley +1 more source
An evolutionary and ecological perspective of Amazonian Hylaea species of Hymeneae (Leguminosae: Caesalpinioideae) [PDF]
Acta Amazonica, 1973 The resin-producing genus Hymenaea has an amphi-Atlantic distribution with 13 species being Neotropical and one occurring along the eastern coast of Africa.
Jean H. Langenheim +2 more
doaj +1 more source
Structure and function of soil fauna communities in Amazonian anthropogenic and natural ecosystems [PDF]
European Journal of Soil Biology, 2001 The soil biological conditions of two 5-year-old polyculture tree plantations in Amazonia were studied comparatively to a 13-year-old secondary forest and a nearby undisturbed primary forest. The polycultures had been planted to regenerate the soil degraded by land preparation and a former rubber tree monoculture.
Höfer, Hubert +6 more
openaire +3 more sources
Past, present and future of local crop evolution
PLANTS, PEOPLE, PLANET, EarlyView.Promoting agrobiodiversity is a promising strategy for mitigating the negative effects of climate change on global food security. We highlight the central role evolutionary processes play in harnessing the potential of local crops by integrating genomics, archaeology, ethnobotany and traditional ecological knowledge (TEK).
Nataly Allasi Canales +6 more
wiley +1 more source
Ecosystem functioning and dung beetles.
, 2013 A major challenge of ecological research is to assess the functional consequences of species richness loss over time and space in global biodiversity hotspots, where extinctions are happening at an unprecedented rate.
Dangles Olivier, Jacques
core +1 more source
Brazil seed transfer zones: Supporting seed sourcing for climate‐resilient ecosystem restoration
PLANTS, PEOPLE, PLANET, EarlyView.Brazil has tens of millions of hectares of degraded land that must be restored to meet national and global biodiversity and climate goals. Sowing genetically diverse native seeds is key to restoring degraded lands to climate‐resilient landscapes, but we still lack guidance on how to effectively match seed sources to restoration sites across broad ...
Mateus Silva +17 more
wiley +1 more source
Multiple primary cutaneous melanoma in the amazon region of Peru
Anales de la Facultad de MedicinaWe report an 82-year-old male from Iquitos, Amazon region of Peru, with a three-month history of mild-tomoderate painful skin lesions on the right lower limb.
Rocío Laureano Suárez +4 more
doaj +1 more source