Results 31 to 40 of about 7,257 (189)

Soil quality indicators in a rhodic kandiudult under different uses in northern Parana, Brazil

open access: yesRevista Brasileira de Ciência do Solo, 2014
Sustainable use of soil, maintaining or improving its quality, is one of the goals of diversification in farmlands. From this point of view, bioindicators associated with C, N and P cycling can be used in assessments of land-use effects on soil quality ...
Biana Harumi Kuwano   +10 more
doaj   +1 more source

Bioindicadores em áreas de Mineração

open access: yes, 2021
O presente trabalho consistiu em realizar uma abordagem bibliográfica sobre os mecanismos naturais de controle ambiental, “bioindicadores” em áreas de mineração, aliadas a outras práticas, de forma que possibilitasse monitorar a qualidade do sistema em ...
Corrêa, Jurandir Martins
core  

Acoustic parameter variation and emission patterns in franciscana dolphin (Pontoporia blainvillei) clicking behavior at high frequency

open access: yesFrontiers in Marine Science
Franciscana dolphins are small odontocetes that produce narrow-band high-frequency echolocation clicks. Autonomous acoustic monitoring and field survey acoustic sampling were used to record franciscana dolphins in Ilha Grande Bay, Brazil.
Lis Bittencourt   +9 more
doaj   +1 more source

Evaluation of the use of Leptodactylus ocellatus (Anura: Leptodactylidae) frog tissues as bioindicator of metal contamination in Contas River, Northeastern Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2014
This paper presents a study on the viability of the use of tissues of the Leptodactylus ocellatus species (Anura Leptodactylidae) as a bioindicator of metal pollution.
LÍVIA O. CORREIA   +3 more
doaj   +1 more source

Efemerópteros del género Camelobaetidius (Ephemeroptera: Baetidae) como bioindicadores en ecosistemas lóticos de Costa Rica: ACLA-P

open access: yesCuadernos de investigación UNED, 2021
Introducción: El estudio de insectos acuáticos en ecosistemas lóticos se ha vuelto común en los últimos años para la bioindicación de cambios asociados al desarrollo socioeconómico.
Fabián A. Sibaja Araya
doaj   +1 more source

The Franciscana (Pontoporia blainvillei) in the Northern Limit of the FMA II: Strandings and Habitat Use in Ilha Grande Bay

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT The presence of the franciscana (Pontoporia blainvillei) at the northern limit of the FMA II was investigated using a range of methods, including monitoring of strandings, boat surveys, and passive acoustic monitoring (PAM). Franciscana strandings were recorded within the distributional gap between Macaé (22°55′ S) and Ilha Grande (23°09′ S ...
Alexandre F. Azevedo   +10 more
wiley   +1 more source

Bioindicadores en contextos metropolitanos del siglo XXI

open access: yesObservatorio Medioambiental, 2023
Este trabajo de investigación se centra en el análisis de bioindicadores como herramientas de control y seguimiento de la calidad ambiental en múltiples zonas a nivel internacional. Recorriendo sus orígenes, sus cualidades más representativas y ejemplos de resultados exitosos.
openaire   +1 more source

Trophic Ecology of Loggerhead Turtles (Caretta caretta) in Southern Brazil: Insights From Stable Isotopes

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT This study aimed to investigate the trophic ecology of loggerhead turtles recorded stranded along the Paraná coast in southern Brazil. Carbon and nitrogen stable isotopes were analysed in muscle tissues from 20 loggerhead turtles and in 69 specimens representing 12 prey species (molluscs, crustaceans and teleost fishes).
Gleici Montanini   +7 more
wiley   +1 more source

Revisión Sistemática: Efectos de los agroquímicos en la calidad de los suelos agrícolas usando Bioindicadores, 2020 [PDF]

open access: yes, 2020
El objetivo de la presente investigación fue determinar los efectos de los agroquímicos en la calidad de los suelos agrícolas usando bioindicadores; para ello se realizó la revisión y análisis de diferentes artículos científicos y revistas científicas
Grandez Gonzales, Gabriela
core  

Determinación de la calidad ecológica del río Tuluá Valle del Cauca

open access: yesMutis, 2014
En el período comprendido entre febrero y junio de 2011, se realizó un estudio sobre la calidad ecológica del río Tuluá en sus tramos medio y bajo en la jurisdicción del municipio de Tuluá, Valle del Cauca. Se establecieron seis puntos de muestreo donde
César Augusto Bustamante Toro   +2 more
doaj   +1 more source

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