Results 21 to 30 of about 705 (132)

Intraspecific plant chemodiversity at plot level has contrasting effects on arthropod functional groups

open access: yesFunctional Ecology, Volume 39, Issue 12, Page 3732-3750, December 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant chemistry mediates interactions between plants and their environment. While intraspecific chemodiversity at the individual plant level is well studied, the effects of chemodiversity at the plant community level on arthropod interactions need more attention.
Lina Ojeda‐Prieto   +3 more
wiley   +1 more source

Environmental magnetism / R. Thompson and F. Oldfield

open access: yesGeofísica Internacional, 1988
Este libro sobre “Magnetismo Ambiental” de Roy Thompson (Universidad de Edimburgo, Reino Unido) y de Frank Oldfield (Universidad de Liverpool, Reino Unido) presenta en una forma atractiva y concisa un campo nuevo de estudios interdisciplinarios en donde ...
J. Urrutia Fucugauchi
doaj   +1 more source

Contrasting effects of vertebrate and invertebrate herbivores on leaf litter decomposition in terrestrial ecosystems: A meta‐analysis

open access: yesFunctional Ecology, Volume 39, Issue 12, Page 3372-3384, December 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Herbivores influence litter quality, soil properties and decomposer communities, with cascading effects on litter decomposition. Vertebrate and invertebrate herbivores can affect decomposition through the same two pathways (litter quality‐ and soil‐mediated) but are ...
M. Paz Tapella   +4 more
wiley   +1 more source

Histological and Gene Expression Analyses of the Arm and Finger Macroglands of Two Hyloxalus Frogs (Dendrobatidae)

open access: yesMolecular Ecology, Volume 34, Issue 22, November 2025.
ABSTRACT Chemical communication during courtship is well documented in salamanders and newts, but its role in frogs is less understood. In some Neotropical poison frogs, males exhibit specialised mucous glands (SMGs) in the hand integument that express high levels of sodefrin precursor‐like factors (SPFs), an amphibian pheromone. Some species also show
Diana Abondano Almeida   +4 more
wiley   +1 more source

ESTUDIOS QUÍMICOS DE AMBROSIA CUMANENSIS KUNTH EN PANAMÁ

open access: yesTecnociencia, 2019
Ambrosia cumanesis K (Asteraceae), conocida como Altamisa, es una especie aromática distribuida ampliamente en el país. Se ha asociado su uso al tratamiento de afecciones renales, como antiinflamatorio, antiparasitario y purgante, por lo que se realizó ...
Laura P. Patiño C.   +5 more
doaj  

Calidad microbiológica y físico-química del agua para usos recreativos en las playas de Bocagrande y Marbella,en Cartagena de Indias, Colombia.

open access: yesRevista Científica, 2006
En la actualidad Cartagena es el puerto colombiano sobre el mar Caribe con mayor reconocimiento por su trayectoria histórica y por su actividad turística. Debido a la importancia que tiene en calidad de las aguas de recreo para los bañistas y usuarios en
Adriana Yepes Mayorga
doaj   +1 more source

Distinct Intra‐ and Interspecific Foraging Patterns of Stingless Bee Species as a Conservation Tool

open access: yesBiotropica, Volume 57, Issue 5, September 2025.
In this study, we examined the foraging patterns of three rescued stingless bee species in the Bolivian Yungas using melissopalynology and plant–pollinator network analysis. We found distinct floral foraging patterns both within and among three stingless bee species in the Bolivian Yungas, suggesting niche partitioning at multiple levels.
Sissi Lozada‐Gobilard   +4 more
wiley   +1 more source

INCLUSIÓN DE COMPUESTOS QUÍMICOS EN MATRICES POLIMÉRICAS DE QUITOSANO Y SU EFECTO EN LAS PROPIEDADES DE PELÍCULA

open access: yesVitae, 2014
Antecedentes: El quitosano es un polisacárido biodegradable producido a partir de la quitina que se extrae de residuos provenientes de la industria pesquera.
William Albarracín-Hernández   +1 more
doaj   +2 more sources

El Oxígeno: veneno o fármaco

open access: yesRevista Electrónica de AnestesiaR, 2009
El oxígeno como molécula es sin duda un veneno bastante agresivo que la naturaleza ha sabido aprovechar y amortiguar para obtener mayor beneficio energético de sus procesos químicos.
Ivaylo Grigorov Tzenkov
doaj   +1 more source

A Covalent and Modulable Inhibitor of the Tubulin‐Microtubule System: Insights Into the Mechanism of Cacalol

open access: yesChemical Biology &Drug Design, Volume 106, Issue 3, September 2025.
An oxidated form of cacalol, the methylenecyclohexadienone MTC (2), is generated under highly oxidant conditions, thus emulating the environment present in cancer cells. This species (2) is responsible for the inhibition of tubulin polymerization by promoting an irreversible binding interaction with Cys347 in α‐tubulin.
Edgar López‐López   +6 more
wiley   +1 more source

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