Results 61 to 70 of about 214 (151)

Inside a duck‐billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia

open access: yesThe Anatomical Record, Volume 309, Issue 7, Page 1702-1712, July 2026.
Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Tito Aureliano   +3 more
wiley   +1 more source

Editorial

open access: yesBiota Colombiana, 2011
El Convenio de Diversidad Biológica (CDB) del Programa de las Naciones Unidas para el Medio Ambiente (PNUMA), en su artículo 8h, insta a los países parte a prevenir, controlar y erradicar las especies invasoras, sean estas de origen exótico ...
Carlos Andrés Lasso
doaj  

Flower Feeding and Reproductive Timing in Spix's Night Monkeys (Aotus vociferans): Evidence From Arboreal Camera Traps

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
This article provides new insights into the diet and reproductive biology of the Spix's night monkeys (Aotus vociferans). This evidence was collected using arboreal camera traps in a tropical mountain rainforest in Southern Ecuador, where documented information on this primate is rare.
Claudia Viganò   +7 more
wiley   +1 more source

Plantas con semillas introducidas en Guatemala

open access: yesCiencia, Tecnología y Salud
Se reseña el capítulo de un libro que trata sobre plantas vasculares exóticas, introducidas en Guatemala.
Jorge Jiménez Barrios
doaj   +1 more source

Nectar Robbery by Native and Invasive Bumblebees Reduces Floral Rewards but Not Seed Production in Desfontainia fulgens

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
We evaluated nectar robbery by native and invasive bumblebees in the hummingbird‐pollinated shrub Desfontainia fulgens in southern Chile. Nectar robbery strongly reduced nectar standing crop and altered floral visitation patterns, but these proximate effects did not translate into reduced seed production under natural pollination conditions.
Carlos E. Valdivia, José I. Orellana
wiley   +1 more source

Spots All Over: Records of Piebaldism in Red‐Tailed Squirrel Syntheosciurus granatensis in Northwestern Ecuador

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
Color variations in mammals are uncommon but can provide insight into genetic and ecological patterns within populations. We documented a high prevalence of piebaldism in Syntheosciurus granatensis in northwestern Ecuador using camera‐trap bycatch (2014–2024), verified iNaturalist observations, and collaborator records, with 31.9% of all independent ...
Elias Viteri‐Basso   +7 more
wiley   +1 more source

First record of the invasive stinging medusa Gonionemus vertens in the southern hemisphere (Mar del Plata, Argentina)

open access: yesLatin American Journal of Aquatic Research, 2014
In this paper we report the first finding of the hydromedusa Gonionemus vertens Agassiz, 1862 in the southern hemisphere. About 30 newly released medusae were found within an aquarium on September 2008. The aquarium contained benthic samples collected in
Carolina S Rodriguez   +3 more
doaj  

The land and sea routes to 2030: a call for greater attention on all small islands in global environmental policy. [PDF]

open access: yesNPJ Biodivers, 2023
Ortiz AMD   +7 more
europepmc   +1 more source

Diel and Artificial Light Effects on Nearshore Communities Revealed by eDNA Metabarcoding

open access: yesEnvironmental DNA, Volume 8, Issue 4, July‐August 2026.
Environmental DNA revealed rapid, taxon‐specific community reorganization across diel and artificial light conditions in a nearshore marine ecosystem. Distinct responses among trophic groups indicate that artificial light at night reshapes predator–prey interactions and community structure within 30 min of exposure.
Kingsly Chuo Beng   +18 more
wiley   +1 more source

The Upper Range Limit of Alien Plants Is Not in Equilibrium with Climate in the Andes of Central Chile. [PDF]

open access: yesPlants (Basel), 2022
Goncalves E   +6 more
europepmc   +1 more source

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