Results 71 to 80 of about 46,378 (257)

Germline-restricted chromosome (GRC) is widespread among songbirds

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2018
Significance We discovered that contrary to other bird species and most other animals, all examined songbird lineages contain a different number of chromosomes in the somatic and germline genomes.
A. Torgasheva   +12 more
semanticscholar   +1 more source

Deer reduce habitat quality for a woodland songbird: evidence from settlement patterns, demographic parameters, and body condition. [PDF]

open access: yes, 2013
Understanding avian responses to ungulate-induced habitat modification is important because deer populations are increasing across much of temperate Europe and North America.
Carbonell R.   +14 more
core   +1 more source

Parental care and bird embryonic metabolism: A comparison between uniparentally incubating Silver‐throated Tits and biparentally incubating Black‐throated Tits

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Studies have shown that organisms may adjust metabolic rates in response to thermal variability, highlighting metabolic plasticity as a key adaptive mechanism. Understanding the extent of metabolic plasticity of an organism is key to predicting its adaptation to climate
Qian Hu   +6 more
wiley   +1 more source

A hypothesis on improving foreign accents by optimizing variability in vocal learning brain circuits [PDF]

open access: yes, 2015
Rapid vocal motor learning is observed when acquiring a language in early childhood, or learning to speak another language later in life. Accurate pronunciation is one of the hardest things for late learners to master and they are almost always left with
Simmonds, AJ
core   +2 more sources

Diet, phenology and body size shape nutrient release by songbirds

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Animals can dramatically alter ecosystem structure and function through the cycling and transport of nutrients in their waste. While birds are particularly capable of influencing nutrient cycles due to their high mobility, abundance, metabolism and functional diversity,
Linsey Chen   +2 more
wiley   +1 more source

Nocturnal Songbird Migration [PDF]

open access: yesNature, 1971
WE would like to comment on Evans's criticisms1 of our recent article2 concerning the influence of wind on the direction of nocturnal songbird migration. We pointed out that problems in identifying bird types from radar echoes may have contributed to the controversy about passerine nocturnal migrants compensating for wind drift. Evans claims that there
S. A. GAUTHREAUX, K. P. ABLE
openaire   +1 more source

Activity and migratory flights of individual free‐flying songbirds throughout the annual cycle: method and first case study

open access: yes, 2017
We describe a method and device ( 66 (max. 73) nocturnal migratory flights (29 flights in autumn and > 37, max. 44, in spring) adding up to a total of > 434 (max. 495) flight hours. Migratory flights lasted on average 6.6 h with maximum 15.9 h.
J. Bäckman   +6 more
semanticscholar   +1 more source

The Native Plants of Ohio [PDF]

open access: yes, 1998
PDF pages ...
Rose, Mary Ann, Sheaffer, Cassandra
core  

Ecophysiology of an Avian Invader: Body Condition and Metabolic Rate Adjustments to Ambient Temperature

open access: yesIntegrative Zoology, EarlyView.
This study examines the ecophysiological responses of common waxbills to temperature variation in Portugal. We measured body condition and basal metabolic rate (BMR) during summer and winter across two regions in Portugal. Body condition was negatively correlated with temperature, while the relationship between BMR and temperature varied seasonally. In
Marina Sentís   +7 more
wiley   +1 more source

Automated annotation of birdsong with a neural network that segments spectrograms

open access: yeseLife, 2022
Songbirds provide a powerful model system for studying sensory-motor learning. However, many analyses of birdsong require time-consuming, manual annotation of its elements, called syllables.
Yarden Cohen   +5 more
doaj   +1 more source

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