Results 31 to 40 of about 572,183 (121)

Moth Communities Reveal High Stability Despite Ongoing Compositional Shifts Over Five Years Following Hurricane Disturbance

open access: yesEcology and Evolution, Volume 15, Issue 10, October 2025.
We examined the temporal dynamics and ecological stability of tropical forest moth communities using a unique dataset spanning 6 months before and up to 5 years after two extreme hurricanes. While abundance and richness recovered within 2 years, species composition continued to shift, indicating ongoing reassembly with a directional trajectory toward ...
Aura M. Alonso‐Rodríguez   +3 more
wiley   +1 more source

Comunidad zooplanctónica en el sistema de surgencia de la Ensenada de Gaira, Santa Marta, Caribe Colombiano [PDF]

open access: yes, 2007
Se analizaron los sistemas de surgencia y no surgencia de la Ensenada de Gaira Caribe colombiano, durante el período julio-septiembre de 2006, con el objetivo de determinar cómo la comunidad zooplanctónica está siendo influenciada por las variables ...
Cepeda Mercado, Amancay de Atacama
core   +1 more source

Registro de hifomicetos acuáticos en el río Guáquira de la Reserva Ecológica Guáquira (San Felipe, Venezuela)

open access: yesGestión y Ambiente, 2018
En los ecosistemas lóticos prístinos están presentes los hifomicetos acuáticos, que son un grupo de hongos imperfectos microscópicos responsables de la degradación del material vegetal que cae al agua, facilitando su uso en niveles tróficos superiores ...
Rafael Fernández, Gunta Smits
doaj   +1 more source

Quality and digestibility of food ingested by various trophic fish groups in the Upper Paraná River floodplain

open access: yesRevista de Biología Tropical, 2011
Determining quality of food ingested and digestibility can be helpful in understanding the mechanisms that determine trophic plasticity, which is the ability of a given species to use a more advantageous food source at a given time.
Anna Christina Esper Amaro de Faria   +1 more
doaj   +2 more sources

Exploration Behavior Is Consistent and Associated With Foraging Behavior in Island Songbirds

open access: yesBiotropica, Volume 57, Issue 4, July 2025.
We tested the neophobia threshold hypothesis in six landbird species, including four Darwin's finches. Exploration behavior was consistent over time and contexts, with species exhibiting greater foraging diversity showing higher exploratory tendencies.
Jefferson García‐Loor   +3 more
wiley   +1 more source

Relaciones tróficas en un agroecosistema de la región Sabanas, Sucre, Colombia

open access: yesPastos y Forrajes, 2019
El objetivo de este estudio fue definir las relaciones tróficas existentes en el agroecosistema de una granja en la región Sabanas, Sucre, Colombia. Se partió de estudios anteriores en la granja y de observaciones de campo entre los años 2014-2017.
Pedro Ramón Caraballo-Gracia   +2 more
doaj  

Two lenses for exploring relationships between seabirds and fishers: Unveiling reciprocal contributions

open access: yesPeople and Nature, Volume 7, Issue 5, Page 1025-1040, May 2025.
Abstract Reciprocal relationships between fishers and marine life have been documented in Indigenous fishing contexts, but there are few case studies that describe the mechanisms of such relationships, and even fewer that explore other contexts, such as that of artisanal fishers in Latin American countries.
Jaime Ojeda   +5 more
wiley   +1 more source

Butterfly species vary in sex‐specific sodium accumulation from larval diets

open access: yesEcological Entomology, Volume 50, Issue 1, Page 228-234, February 2025.
Male butterflies accumulate more sodium than females in three butterfly species, especially when larvae were exposed to high dietary sodium concentrations. Sodium bioaccumulation occurred mainly in Low Na treatments and bioexcretion was highest in females on High Na diets.
Luis Y. Santiago‐Rosario   +4 more
wiley   +1 more source

Salamander loss alters montane stream ecosystem functioning and structure through top‐down effects

open access: yesAnimal Conservation, Volume 27, Issue 5, Page 722-735, October 2024.
Salamanders are seriously declining worldwide and, despite being important predators in both aquatic and terrestrial environments, their effects on freshwater ecosystems are virtually unknown. We demonstrated that salamander loss could alter montane stream ecosystem functioning and structure by reducing periphyton accrual, altering algal communities ...
A. Alonso   +4 more
wiley   +1 more source

Redes alimenticias en el ecosistema del mar

open access: yes, 2011
Ensino Fundamental::Séries Finais::Ciências NaturaisEnsino Fundamental Final::Meio AmbienteLa animación muestra los componentes de una cadena alimentaria en un ambiente acuático, que se representa en todos los niveles tróficos, que engloba desde los ...
Ministerio de Educación de la República del Perú
core   +1 more source

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