Results 51 to 60 of about 13,903 (223)

Distribution of aromatase-, estrogen receptor, and androgen receptor mRNA in the forebrain of songbirds and non-songbirds

, 1999
Androgens and estrogens are crucial for the differentiation and function of the vocal control system of songbirds. A major source of estrogens in songbirds is the cerebral aromatization of circulating testosterone by aromatase (ARO). In the vocal control
M. Gahr, FUSANI, Leonida, R. Metzdorf, Gahr, M., Metzdorf, R., Fusani, L.   +5 more
core   +1 more source

From dusk till dawn: ecoacoustic monitoring reveals wind energy impacts on roding Eurasian woodcock Scolopax rusticola

Wildlife Biology, EarlyView.
Renewable energy is vital for reducing carbon emissions and yet its infrastructure poses challenges to biodiversity. While the impacts of wind power on bats and raptors are well‐studied, the effects on elusive species remain largely unknown. The Eurasian woodcock Scolopax rusticola, a nocturnal forest bird, performs characteristic courtship flights at ...
Jan O. Engler, Michael Bokämper, Stefan Hannabach, Manuela Merling de Chapa, Lena Daum, Kostadin B. Georgiev, Simon Thorn   +6 more
wiley   +1 more source

Development of optimized methods for unbiased dusky grouse population monitoring using real and simulated data

Wildlife Biology, EarlyView.
Rigorous state‐wide monitoring programs are lacking for dusky grouse Dendragapus obscurus, a North American species of forest grouse with relatively low detectability that is found in coniferous and mountainous areas in the western United States and Canada.
Elizabeth A. Leipold, Claire Gower, Lance B. McNew   +2 more
wiley   +1 more source

ZENK activation in the nidopallium of black-capped chickadees in response to both conspecific and heterospecific calls

, 2014
Neuronal populations in the songbird nidopallium increase in activity the most to conspecific vocalizations relative to heterospecific songbird vocalizations or artificial stimuli such as tones.
Freeberg, Todd, Elie Julie E., Marisa Hoeschele, Freeberg Todd M., Julie E Elie, Moscicki Michele K., Lee, Homan, Bloomfield Laurie L., Moscicki, Michele, Homan Lee, Owens Jessica L., Marc T Avey, Owens, Jessica, Lee Homan, Guillette, Lauren, Hoeschele, Marisa, Guillette Lauren M., Sturdy Christopher B., Laurie L Bloomfield, Christopher B Sturdy, Lauren M Guillette, Avey Marc T., Bloomfield, Laurie, Michele K Moscicki, Avey, Marc, Sturdy, Christopher, Elie, Julie, Jessica L Owens, Todd M Freeberg, Hoeschele Marisa   +29 more
core   +1 more source

DNA metabarcoding reveals wolf dietary patterns in the northern Alps and Jura Mountains

Wildlife Biology, EarlyView.
Understanding predator–prey interactions is crucial for wildlife management and human–wildlife coexistence, particularly in multi‐use landscapes such as western Europe. As wolves Canis lupus recolonize their former habitats, knowledge of their diet is essential for conservation, management and public acceptance.
Florin Kunz, Eduard Mas‐Carrió, Philippine Surer, Fridolin Zimmermann, Philippe Christe, Luca Fumagalli, Nina Gerber   +6 more
wiley   +1 more source

Abundance and occupancy trends of sooty grouse in western Oregon: determining best modeling practices by comparing observed and simulated data

Wildlife Biology, EarlyView.
Sooty grouse Dendragapus fuliginosus are large game birds that occupy montane forests in the Pacific Northwest, USA. These forests have been altered by human activities, which have been shown to have both positive and negative impacts on local populations.
Sarah J. K. Frey, Kelly M. Walton, Mikal L. Cline, Lindsey E. Sanders, Jonathan B. Dinkins   +4 more
wiley   +1 more source

Night-vision brain area in migratory songbirds.

, 2005
Twice each year, millions of night-migratory songbirds migrate thousands of kilometers. To find their way, they must process and integrate spatiotemporal information from a variety of cues including the Earth's magnetic field and the night-time starry ...
Mouritsen, H., Liedvogel, M., Feenders, Gesa, Jarvis, a., Liedvogel, Miriam, Wada, K., Jarvis, Erich D, Mouritsen, Henrik, Wada, Kazuhiro, Feenders, G.   +9 more
core   +1 more source

Diet, phenology and body size shape nutrient release by songbirds

Functional 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, Alexander S. Flecker, Ethan S. Duvall   +2 more
wiley   +1 more source

Low Occurrence of Acinetobacter baumannii in Gulls and Songbirds [PDF]

Polish Journal of Microbiology, 2020
ANDŻELINA ŁOPIŃSKA, PIOTR INDYKIEWICZ, EVELYN SKIEBE, YVONNE PFEIFER, JANJA TRČEK, LESZEK JERZAK, PIOTR MINIAS, JACEK NOWAKOWSKI, MATEUSZ LEDWOŃ, JACEK BETLEJA, GOTTFRIED WILHARM   +10 more
doaj   +1 more source

Torpor‐assisted migration: Regular use of shallow torpor reduces rest‐phase energy expenditure for songbirds during migration

Journal of Animal Ecology, EarlyView.
Migrating songbirds regularly use shallow torpor (up to 98% of birds for some species) to save energy (up to 42%) during inactive periods. This Ruby‐crowned Kinglet Corthylio calendula that was captured after a spring snowstorm highlights the value of being able to save energy when encountering unfavourable conditions.
Ryan A. C. Leys, Lily Hou, Liam P. McGuire   +2 more
wiley   +1 more source