Results 11 to 20 of about 565 (129)

Geo-inspired model: Agents vectors naturals inspired by the environmental management (AVNG) of water tributaries

open access: yesTecnura, 2018
Context: Management to care for the environment and the Earth (geo) can be source of inspiration for developing models that allow addressing complexity issues; the objective of this research was to develop an additional aspect of the inspired models. The
Edwin Eduardo Millán Rojas   +2 more
doaj   +6 more sources

Hormigas cazadoras en sistemas productivos del piedemonte amazónico colombiano: diversidad y especies indicadoras Hunter ants in productive systems of Colombian amazon foothills: diversity and indicator species

open access: yesActa Amazonica, 2011
Para conocer la abundancia, riqueza y composición de hormigas cazadoras y su variación en los sistemas productivos del departamento de Caquetá, se seleccionaron 27 fincas representativas de tres ventanas (agroforestal, silvopastoril y tradicional), en ...
Maria Catalina Sanabria-Blandón   +1 more
doaj   +2 more sources

New record of Cepa apeca (Diptera, Syrphidae, Eristalinae, Merodontini) in the Andean-Amazonian region of Colombia and expansion of its geographic range [PDF]

open access: yesActa Amazonica, 2021
Flower flies of the genus Cepa are endemic to the Neotropical region and Cepa apeca is currently known only from Costa Rica. Here we report the first record of C.
Henry Mauricio PARADA-MARIN   +2 more
doaj   +1 more source

A new species of Brethesiamyia Maia (Diptera: Cecidomyiidae) from Colombia with description of immature forms [PDF]

open access: yesPapéis Avulsos de Zoologia, 2021
A new species of Brethesiamyia (Diptera: Cecidomyiidae) is described from Colombia, which represents the first record of the genus for the country. We described the species based on male, female, pupa, larva of third instar and gall morphology, which the
Esau Adenawer Ospina-Peñuela   +3 more
doaj   +1 more source

Elevational range extension of Drab Water Tyrant, Ochthornis littoralis (Pelzeln, 1868) (Passeriformes, Tyrannidae) [PDF]

open access: yesCheck List, 2022
The Drab Water Tyrant, Ochthornis littoralis (Pelzeln, 1868), is a small flycatcher occurring across lower Amazonia. Its usual habitat is the edges of rivers, and it is easily observed flying over sandbanks and among the trunks of fallen trees and ...
Jefferson García-Loor
doaj   +3 more sources

Atmospheric dust is a global nutrient source for plants via foliar uptake. [PDF]

open access: yesNew Phytol
Summary Atmospheric mineral dust is a critical nutrient supplier to marine ecosystems, but its role in terrestrial plant nutrition remains underexplored due to the assumption that nutrients are acquired solely from soils via roots. Here, we demonstrate that plants directly acquire nutrients from dust through leaves, revealing an unrecognized ...
Lokshin A   +5 more
europepmc   +2 more sources

Geological processes shaping freshwater biodiversity: a synthesis of global evidence. [PDF]

open access: yesBiol Rev Camb Philos Soc
ABSTRACT Recent genomic data highlight the key roles of geological processes in shaping the diversification and biogeography of freshwater lineages. Specifically, physical processes such as tectonic uplift, erosion, glaciation, lake formation, and sea‐level fluctuation contribute extensively to the evolution of biotic diversity within and among ...
Waters JM   +3 more
europepmc   +2 more sources

Effects of environmental variables on the composition of ants (Hymenoptera: Formicidae) in Amazonian foothills forest

open access: yesIteckne, 2021
Abiotic factors can negatively or positively affect the structure of communities; studying these factors is important to identify the causes that structure ant communities; taking into account this situation and that in the Amazon foothills region ...
Sandra Patricia Cabrera-Córdoba   +2 more
doaj   +1 more source

Resurrection of Passiflora acuminata DC. and synonymization of P. tolimana Harms, P. gleasonii Killip, P. metae M. Bonilla, C. Aguirre & Caetano (Passifloraceae) following a study of their morphology and ecogeography [PDF]

open access: yesPhytoKeys, 2022
Within the very uniform series Laurifoliae, Passiflora acuminata (treated as a synonym of P. laurifolia in the Flora of China), P. tolimana, P. gleasonii and P. metae appear particularly similar.
Maxime Rome   +3 more
doaj   +3 more sources

Human health risk assessment of metals and metalloids in mining areas of the Northeast Andean foothills of the Ecuadorian Amazon

open access: yesIntegrated Environmental Assessment and Management, 2022
Abstract Gold mining (GM) is a major source of metals and metalloids in rivers, causing severe environmental pollution and increasing the exposure risks to the residents of surrounding areas. Mining in Ecuadorian Amazonia has dramatically increased in recent years, but its impacts on Indigenous local populations that make use of rivers ...
Emily Galarza   +6 more
openaire   +3 more sources

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