Results 21 to 30 of about 15,494 (110)

ISEV2023 Abstract Book

open access: yes, 2023
Journal of Extracellular Vesicles, Volume 12, Issue S1, May 2023.
wiley   +1 more source

Diet and prey availability of terrestrial insectivorous birds prone to extinction in amazonian forest fragments

open access: yesBrazilian Archives of Biology and Technology, 2010
This study compared niche breath, prey size, and diet variability in two pairs of sympatric species of terrestrial insectivorous birds, each pair containing one species that can persist in small forest fragments and one that does not.
Luiz Augusto Macedo Mestre   +2 more
doaj   +1 more source

The fish Strouhal number as a criterion for hydraulic fishway design [PDF]

open access: yes, 2017
Longitudinal river fragmentation through physical barriers is a major issue for the conservation of aquatic species in regions with intense hydropower development, such as Chile.
Arriagada, Pedro   +7 more
core   +1 more source

Análise do uso de microhabitat, distribuição espacial e dieta de Gymnorhamphichthys rondoni (Miranda-Ribeiro, 1920) (Rhamphichthyidae) em riachos de baixa ordem, Amazônia Ocidental

open access: yesBiotemas, 2019
O hábito alimentar, psamófilo, e a morfologia de Gymnorhamphichthys rondoni, o tornam uma espécie altamente especializada, com importante papel em sistemas de riachos.
Lucena Rocha Virgilio   +3 more
doaj   +1 more source

Dieta de cinco espécies de Hemiodontidae (Teleostei, Characiformes) na área de influência do reservatório de Balbina, rio Uatumã, Amazonas, Brasil Diet of five species of Hemiodontidae (Teleostei, Characiformes) in the area of influence of the Balbina reservoir, Uatumã River, State of Amazonas, Brazil

open access: yesIheringia: Série Zoologia, 2008
A dieta de cinco espécies de Hemiodontidae (Hemiodus argenteus (Pellegrin, 1908), H. atranalis (Fowler, 1940), H. immaculatus (Kner, 1858), H. microlepis (Kner, 1858) e H.
Cylene C. da Silva   +2 more
doaj   +1 more source

Feeding Biology of Pectoral Sandpiper Calidris Melanotos (Birds: Scolopacidae) In the Floodplain of the Paraná River, Argentina [PDF]

open access: yes, 2010
This study focuses upon the nourishing biology of the Pectoral Sandpiper at the floodplain of the Paraná river during  spring and summer. Trophic spectrum, feeding selectivity and efficiency, extent of the trophic niche, circadian rhythm of feeding ...
Bagnarol, Mónica   +4 more
core  

Observations of clustering inside oceanic bubble clouds and the effect on short-range acoustic propagation [PDF]

open access: yes, 2008
It has recently been shown [Weber, T. C. et al. (Year: 2007). “Acoustic propagation through clustered bubble clouds,” IEEE J. Ocean. Eng.32, 513–523] that gas bubble clustering plays a role in determining the acoustic field characteristics of bubbly ...
Weber, Thomas C.
core   +2 more sources

Phenotypic, Floristic, and Anthropogenic Drivers of the Pollen Niche of Amazonian Stingless Bees

open access: yesBiotropica, Volume 57, Issue 3, May 2025.
The pollen diversity and composition collected by Amazonian stingless bees depend on their body mass, tree composition, and urbanization. Further, bees have been collecting fewer pollen types since the 1970s. ABSTRACT Stingless bees (Apidae: Meliponini) are major pollinators in the tropics, supporting key ecosystem services.
Daniel Bastos Pimenta   +3 more
wiley   +1 more source

TIC e empreendedorismo: o papel das redes sociais [PDF]

open access: yes, 2011
As inovações tecnológicas, a globalização e a aceleração das comunicações têm desencadeado uma enorme revolução no mundo do trabalho, trazendo como resultados o aumento da concorrência, a redução drástica de empregos e a maior exigência quanto às ...
Guedes, Anabela   +2 more
core   +2 more sources

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