Results 71 to 80 of about 13,903 (223)

Using customs data to understand overlooked trade in non‐CITES birds between Africa and Asia

open access: yesConservation Biology, EarlyView.
Abstract The international trade in live birds poses risks to animals, people, and biodiversity. To effectively mitigate these risks, decision‐makers require information on the volume, dynamics, and direction of trade. Despite Africa once being the largest exporter of birds by region, very little data exist on recent trade in live birds not listed on ...
Alisa Davies   +4 more
wiley   +1 more source

Modeling habitat use in forest songbirds [PDF]

open access: yes, 1993
Canterbury, Grant E.. (1993). Modeling habitat use in forest songbirds.
Canterbury, Grant E.
core  

Why Do Birds Flock? A Role for Opioids in the Reinforcement of Gregarious Social Interactions

open access: yesFrontiers in Physiology, 2019
The formation of social groups provides safety and opportunities for individuals to develop and practice important social skills. However, joining a social group does not result in any form of obvious, immediate reinforcement (e.g., it does not result in
Lauren V. Riters   +2 more
doaj   +1 more source

Prevalence of traded bird species in key biodiversity areas

open access: yesConservation Biology, EarlyView.
Abstract The use and trade of biodiversity involve tens of thousands of species that are exploited at a range of scales, intensities, and degrees of sustainability. As a result, some are highly threatened. Key biodiversity areas (KBAs) are sites of significance for the persistence of biodiversity identified nationally based on standardized criteria ...
Oscar Morton   +4 more
wiley   +1 more source

Female song is widespread and ancestral in songbirds [PDF]

open access: yes, 2015
Bird song has historically been considered an almost exclusively male trait, an observation fundamental to the formulation of Darwin's theory of sexual selection.
Langmore, Naomi   +4 more
core   +1 more source

Mercury in Zhongar Alatau (Kazakhstan) and Carpathian mountains (Slovakia): songbirds and mice as indicators

open access: yesFolia Oecologica
Anthropogenic activities have contributed to the increase of heavy metals and to the alteration of their natural cycles in the environment. Mercury (Hg) is now considered to be one of the most toxic elements whose levels need to be monitored in abiogenic
Zábojníková Lenka   +5 more
doaj   +1 more source

Significant Instances in Motor Gestures of Different Songbird Species

open access: yesFrontiers in Physics, 2019
The nervous system representation of a motor program is an open problem for most behaviors. In birdsong production, it has been proposed that some special temporal instances, linked to significant aspects of the motor gestures used to generate the song ...
Javier N. Lassa Ortiz   +7 more
doaj   +1 more source

Phylogenomics of the American robin (Turdus migratorius) reveals hidden lineages and introgression

open access: yesJournal of Systematics and Evolution, EarlyView.
Phylogenomic analyses of Turdus migratorius uncover four previously unrecognized lineages, including a divergent Baja California lineage (T. m. confinis). The results reveal complex evolutionary relationships that depart from simple models of continuous divergence, supported by evidence of introgression between the Mexican lineage and its previously ...
Wendoly Rojas‐Abreu   +5 more
wiley   +1 more source

Magnetic orientation in migratory songbirds

open access: yes, 2019
Migratory birds are well known to use information from the Earth’s magnetic field, stars and the sun for orientation and navigation. Here we give a historical overview of the research findings and techniques which have led to the current knowledge on how
Bairlein, Franz,   +3 more
core   +2 more sources

Planted grasslands have equivalent or higher arthropod biomass than native grassland important to nesting Sprague's Pipits (Anthus spragueii) early in the breeding season

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Grassland species are declining globally. Sprague's Pipit (Anthus spragueii), a native grassland‐obligate, nests in planted grasslands in some regions. How food resources in planted grassland compare with those in native grassland is important to determine the relative benefits of creating new grassland by seeding cropland with ...
David Anthony Kirk   +4 more
wiley   +1 more source

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