Results 51 to 60 of about 2,624 (154)
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
Journal of Biogeography, Volume 53, Issue 1, January 2026.ABSTRACT Aim The study of the structure of species assemblages has typically assumed that similar environments share common species; however, interacting biogeographic and phylogenetic processes are equally important. The understanding that ecological processes operate at different spatial scales to shape species assemblages led to the concept of ...
Luis A. Sánchez‐González +2 more
wiley +1 more source
Floral visitors of Aechmea constantinii (Mez) L. B. Sm. (Bromeliaceae) in a remnant of the Brazilian Northeast Atlantic Rainforest [PDF]
Biotemas, 2010 This study aims to determine the floral visitors and potential pollinators of Aechmea constantinii (Mez) L. B. Sm. (Bromeliaceae), a bromeliad endemic to the Brazilian Northeast Atlantic Rainforest.
Petrúcio Alexandre Fonseca Rios J +2 more
doaj
Biotemas, 2015 Plant spatial distribution can influence the activity of floral visitors. Flower clustering in patches may be more attractive to visitors and it supposedly influences the fruit production.
Caio César Corrêa Missagia +1 more
doaj
Eye Morphology and Retinal Topography in Hummingbirds (Trochilidae: Aves) [PDF]
Brain, Behavior and Evolution, 2015 Hummingbirds are a group of small, highly specialized birds that display a range of adaptations to their nectarivorous lifestyle. Vision plays a key role in hummingbird feeding and hovering behaviours, yet very little is known about the visual systems of these birds. In this study, we measured eye morphology in 5 hummingbird species.
Thomas J. Lisney +3 more
openaire +2 more sources
Past research and future directions in understanding how birds use their sense of smell
Ibis, Volume 167, Issue 4, Page 853-881, October 2025.Our understanding of the functional importance of olfaction to birds has improved over the past 60 years, largely as the result of experimental studies testing how birds use their sense of smell in different contexts. As it is impossible to measure directly which odours birds can detect, we rely on measuring behavioural responses to scent cues or ...
Darcy Creece +2 more
wiley +1 more source
Bird species richness at Parque Estadual do Pico do Jabre, Paraíba
Acta Brasiliensis, 2017 This study aims to make an inventory of bird species from Parque Estadual do Pico do Jabre, Paraíba, listing trophic guilds and forest habitat dependencies. In 12 days of survey, 240 Mackinnon lists was builted.
Erich de Freitas Mariano +1 more
doaj +1 more source
Ibis, Volume 167, Issue 4, Page 927-944, October 2025.Hummingbirds play an important role as pollinators and are one of the primary examples of animal–plant coevolution. However, factors such as land‐use change, urbanization, exotic species introductions and the disappearance of native plants can negatively affect the persistence of hummingbird populations.
Gonzalo A. Ramírez‐Cruz +4 more
wiley +1 more source
Ampliación de la distribución de Sephanoides sephaniodes (Trochilidae: Aves) en Argentina
Revista Peruana de Biología, 2012 El presente trabajo reporta la ampliación de la distribución de Sephanoides sephaniodes hacia el centro-oeste de Argentina. Se analizan posibles causas de la dispersión y consecuencias ecológicas de la misma.
Nancy Verónica Marinero +3 more
doaj +1 more source
Revista Científica, 2014 Se determinó la diversidad de aves de la vereda San Gil, municipio de Gutiérrez, Cundinamarca, durante los meses de octubre de 2012 a marzo de 2013, mediante el método de conteo por puntos.
Jeisson Alexander Mayorga +1 more
doaj +1 more source