Results 31 to 40 of about 5,065 (163)

Spiders in the mosaic: How habitat heterogeneity and structure drive local spider diversity in a Mediterranean forest

open access: yesEcological Entomology, Volume 51, Issue 4, Page 810-826, August 2026.
We assessed alpha‐ and beta‐diversity patterns of spiders across different forests and across vegetation layers (ground, shrub, low canopy) at local spatial scales across various Mediterranean forest types. Across forests, alpha‐diversity increased with habitat heterogeneity, which also drove beta‐diversity patterns across plots .
Manuel Marquerie‐Córdoba   +8 more
wiley   +1 more source

ED009. El uso de la ciencia ciudadana para determinar la distribución y prevalencia de la hormiga argentina Linepithema humile (Hymenoptera: Formicidae) en Quito, Ecuador

open access: yesSiembra, 2023
Las especies invasoras son una seria amenaza para la biodiversidad nativa y el funcionamiento de los ecosistemas, y los invertebrados tienden a ser excepcionalmente buenos invasores a través de su capacidad para reproducirse y dispersarse fácilmente ...
Kirstynn Joseph   +4 more
doaj  

Mirmecofauna asociada a cafetales bajo sombra en Quipile, Cundinamarca, Colombia

open access: yesActa Agronómica, 2018
La abundancia y variedad de microhábitats en los cultivos de café bajo sombra favorecen las poblaciones de hormigas. En cuatro fincas de la vereda Guadalupe alto del municipio de Quipile, Cundinamarca (Colombia) se determinaron la diversidad, la ...
Ricardo Martínez Gamba
doaj   +1 more source

High Densities of Large Herbivores Rapidly Disrupt Ecosystem Integrity

open access: yesGlobal Change Biology, Volume 32, Issue 6, June 2026.
Human‐driven increases in large herbivore populations are emerging as a widespread global change pressure on terrestrial ecosystems. Using the largest hectare‐scale herbivore density manipulation experiment conducted to date, we show that high deer densities rapidly disrupt ecosystem integrity across multiple dimensions of biodiversity and ecosystem ...
Jorge Isla   +38 more
wiley   +1 more source

Where We're Going, We Won't Need Eyes to See: Distributional Range Size Drivers of European Subterranean Spiders

open access: yesJournal of Biogeography, Volume 53, Issue 5, May 2026.
ABSTRACT Aim Understanding why closely related species can have drastically different distributional range sizes is a fundamental question in biology. However, answering this question is challenging due to the multiple inter‐related factors that shape species distributions, particularly in continental regions, where unclear ecological and geographic ...
Adrià Bellvert   +4 more
wiley   +1 more source

Hormigas de Colombia VI. Dos nuevas especies de Osctostruma (Hymenoptera: Formicidae: Basicerotini)

open access: yesCaldasia, 1997
Two new ant species, Octostruma impressa and O. stenoscapa, are described from Colombia. O. rugiferoides is reported for the first time in the country, and an illustrated key to the 6 species in Colombia is presented.Se describen dos nuevas especies de ...
Palacio Edgard
doaj  

Local canopy cover, shade tree identity and landscape tree cover shape leaf‐cutter ant nest density and herbivory in cacao agroforestry systems

open access: yesJournal of Applied Ecology, Volume 63, Issue 4, April 2026.
Our findings provide practical guidance for agroforestry management by demonstrating that intercropping with selected species can mitigate damage from leaf‐cutter ants in cacao agroforests. At the landscape scale, high tree cover was associated with low herbivory rates, emphasising the need to maintain or restore forested habitats.
Blanca Ivañez‐Ballesteros   +8 more
wiley   +1 more source

Producto 4.1.2 Informe con el análisis de diversidad de mamíferos, anfibios, reptiles, aves, colémbolos, himenópteros terrestres, lepidópteros diurnos, coleópteros escarabeidos y melolóntidos, e insectos estridulantes, ictiofauna, macrófitas, macroinvertebrados, perifiton, fitoplancton y zooplancton. Hormigas

open access: yes, 2022
Se realizó el levantamiento de línea base Ambiental General del polígono Valle Medio del Magdalena con el objetivo de caracterizar la diversidad del territorio, previo a las intervenciones de explotación de hidrocarburos.

core  

Introducción a las hormigas de la región Neotropical

open access: yes, 2003
Aunque el libro procura tomar varios temas críticos (ecología, relaciones con plantas, mosaicos), debido a límites de espacio necesariamente excluye otros temas.
Sarmiento-M., C. E.   +24 more
core   +1 more source

Composición de hormigas (Hymenoptera: Formicidae) en dos microabitats de un bosque pie-montano

open access: yes, 2010
La hipótesis de la heterogeneidad establece que el número de especies en un área es proporcional al de microhábitats que abarca. El descubrimiento de hormigas que anidan preferentemente en bancos de arcilla de los bosques montanos neotropicales generó la
Ramón Cabrera, Giovanni Marcelo
core   +1 more source

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