Results 31 to 40 of about 3,808 (116)
Biotropica, Volume 58, Issue 1, January 2026.Nectar is a highly variable, mostly unpredictable resource in tropical mountains. How do nectarivorous birds such as this male Great Sapphirewing cope? Fine‐scaled tracking of hummingbirds and flowerpiercers shows flexibility in daily movement strategies in the high Andes, possibly in response to fluctuating local conditions such as weather and ...
Cristina Rueda‐Uribe +9 more
wiley +1 more source
Una mirada a la competitividad
Dictamen Libre, 2017 Los países han abierto sus fronteras y generaron políticas aperturistas, cuya situación nos crea grandes expectativas para la evolución del mundo de los negocios: dando oportunidad a las empresas de re direccionarse para la conquista de nuevos mercados ...
Rafael Alexander Jaramillo Lotero
doaj +1 more source
High extinction risk of the endemic tree flora in a hyper‐diverse region of the Amazon
PLANTS, PEOPLE, PLANET, Volume 7, Issue 4, Page 998-1010, July 2025.The rapid global loss of biodiversity, especially in the Neotropics, underscores the need to understand how deforestation impacts endemic plant species' extinction risk and conservation status. Due to limited ranges and habitat specialization, endemics are particularly Vulnerable.
Juan Ernesto Guevara‐Andino +2 more
wiley +1 more source
Trabajos de Prehistoria, 1998 Este estudio se centra en la organización económica de las industrias líticas de talla bifacial del Neolítico Final/ Calcolítico en Portugal. Se ha defendido a menudo que las jerarquías sociales aparecieron por primera vez en el occidente de la Península
Stašo Forenbaher
doaj +1 more source
Exploration Behavior Is Consistent and Associated With Foraging Behavior in Island Songbirds
Biotropica, 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
Using Smartphones to Determine Hummingbird Dominance Networks in Quinde Ecotourist‐Route, Ecuador
Biotropica, Volume 57, Issue 4, July 2025.Hummingbird aggression networks and a hierarchical meta‐network were built with dominance interactions recorded with smartphone videos in artificial hummingbird feeders in the Quinde Eco Route in Ecuador, and calculating David's scores with wins and loss rates.
Gabriela Echevarría +1 more
wiley +1 more source
Rainforest Fragmentation Decreases the Robustness of Plant‐Frugivore Interaction Networks
Biotropica, Volume 57, Issue 4, July 2025.Our study in northern Costa Rica found that larger forest fragments and greater forest cover boost frugivore species richness and strengthen the modularity and robustness of plant–frugivore networks, with three tanager species serving as key species. Consequently, conserving these species and maintaining larger, contiguous forest areas is essential for
David Becker +8 more
wiley +1 more source
A Systems Thinking Approach to Nuclear Pedagogy and Workforce Development
Journal of Critical Infrastructure Policy, Volume 6, Issue 2, Fall/Winter 2025.ABSTRACT Nuclear technology's controversial status has been shaped by its early use in military applications, fear driven by high‐profile accidents, and unresolved waste management challenges. There have, on the other hand, been periodic claims that a “nuclear renaissance” is imminent, driven by different dynamics at different times, most recently ...
Brandon Costelloe‐Kuehn +4 more
wiley +1 more source
Revista de la Asociación Odontológica Argentina, 2023 Resumen Objetivo: La periodontitis en dentición primaria es excepcional en niños sin enfermedades sistémicas. El objetivo de este informe es describir las características clínicas y radiográficas de dos casos de niños de 3 años sistémicamente sanos con ...
Fanny Lilia Fernández +3 more
doaj +1 more source
Conservation Biology, Volume 39, Issue 2, April 2025.Abstract Invasive non‐native species (INS) continue to pose a significant threat to biodiversity, including native population declines, which can ultimately disrupt ecosystem processes. Although there is growing evidence of the impacts of INS on functional diversity, most of the existing approaches to prioritization of species for conservation still ...
Clara Marino +2 more
wiley +1 more source