Results 1 to 10 of about 1,403 (131)
Amphibian loss alters periphyton structure and invertebrate growth in montane streams. [PDF]
J Anim Ecol, 2022 This paper demonstrates that amphibian loss increases periphyton biomass, causes shifts in algal assemblages and reduces invertebrate growth. It highlights the importance of protecting amphibians in order to maintain normal stream ecosystem functioning, especially in nonforested streams where periphyton in the main energy resource.
Alonso A +4 more
europepmc +2 more sources
Prioritizing conservation in sub-Saharan African lakes based on freshwater biodiversity and algal bloom metrics. [PDF]
Conserv Biol, 2022 Abstract As agricultural land use and climate change continue to pose increasing threats to biodiversity in sub‐Saharan Africa, efforts are being made to identify areas where trade‐offs between future agricultural development and terrestrial biodiversity conservation are expected to be greatest. However, little research so far has focused on freshwater
Danaher C +3 more
europepmc +2 more sources
Seasonal and intracanopy shifts in the fates of absorbed photons in central Amazonian forests: implications for leaf fluorescence and photosynthesis. [PDF]
New PhytolSummary Recent studies have shown a linear relationship between solar‐induced Chl fluorescence (SIF) and gross primary productivity (GPP) at large scales. However, this relationship diverges at finer leaf scales, particularly in tropical forests with complex canopy structures.
Ziccardi LG +10 more
europepmc +2 more sources
Community-driven variations in snow algae color modulate snow albedo reduction. [PDF]
New PhytolSummary Snow algae blooms visibly alter snow color and surface energy balance, yet the biological basis of this variability remains unclear. We investigated how pigment composition and community structure shape the optical properties of snow algae blooms of distinct colors – red, orange, and green – co‐occurring within the same snowfield in Glacier ...
Almela P +4 more
europepmc +2 more sources
Wound Healing and Anti-Inflammatory Effect in Animal Models of Calendula officinalis L. Growing in Brazil. [PDF]
Evid Based Complement Alternat Med, 2012 Calendula officinalis is an annual herb from Mediterranean origin which is popularly used in wound healing and as an anti‐inflammatory agent. In this study, the ethanolic extract, the dichloromethane, and hexanic fractions of the flowers from plants growing in Brazil were produced.
Parente LM +5 more
europepmc +2 more sources
Environmental and human factors shape the trophic ecology of a widespread marine predator. [PDF]
J Anim EcolOur study reveals how environmental factors and fishing pressure influence swordfish diet, highlighting trophic shifts under future climate scenarios. We provide a novel framework to strengthen our ability to plan for and manage the redistribution of species under global change ensuring that the energetic needs of predators are met.
Fernández-Corredor E +7 more
europepmc +2 more sources
Relação entre clorofila-a e cianobactérias no estado de São Paulo [PDF]
Revista DAE, 2017 Fatores como a intensidade de luz e nutrientes podem exercer influência na densidade e composição da comunidade fitoplanctônica e na quantidade de clorofila-a encontrada no ambiente.
Ligia Marino
doaj +2 more sources
Diagnóstico do estado nutricional de N em porta-enxertos de citros, utilizando-se de teores foliares de clorofila [PDF]
Revista Brasileira De Fruticultura, 2002 Objetivou-se, neste trabalho, avaliar os teores foliares de clorofila total (a+b) em porta-enxertos de citros cultivados em tubetes, como índices no diagnóstico do estado nutricional de N, de acordo com adição das doses de N (0; 400; 800; 1.600; 3.200 e ...
Dalmo Lopes de Siqueira
exaly +3 more sources
Revista de Investigación Agraria y Ambiental, 2021 Contextualización: El área de siembra del cultivo de estevia ha venido creciendo de manera significativa, debido a las nuevas tendencias de consumo de alimentos naturales, bajos en calorías.
ALFREDO DE JESUS JARMA-OROZCO +2 more
doaj +1 more source
Agua, Saneamiento & Ambiente, 2023 La Reserva Natural Laguna de Tiscapa, se ubica en el centro de la ciudad de Managua, a dos kilómetros de la costa del Lago Xolotlán. Este cuerpo de agua ha sido impactado principalmente por acciones antrópicas que iniciaron en 1980 con el ingreso de ...
José Rubén Medina López
doaj +1 more source