Results 91 to 100 of about 46,378 (257)
Low Occurrence of Acinetobacter baumannii in Gulls and Songbirds [PDF]
Polish Journal of Microbiology, 2020 ANDŻELINA ŁOPIŃSKA +10 more
doaj +1 more source
Evolution; international journal of organic evolution, 2018 Sperm exhibit extraordinary levels of morphological diversification across the animal kingdom. In songbirds, sperm have a helically shaped head incorporating a distinct acrosomal membrane or “helical keel,” the form and extent of which varies across ...
H. N. Støstad +3 more
semanticscholar +1 more source
Sexually size dimorphic brains and song complexity in passerine birds [PDF]
, 2004 Neural correlates of bird song involve the volume of particular song nuclei in the brain that govern song development, production, and perception. Intra- and interspecific variation in the volume of these song nuclei are associated with overall brain ...
Eens, Marcel +3 more
core +2 more sources
Conservation Biology, EarlyView.Abstract Human development is a driver of global change and a major threat to biodiversity. Protected areas maintain and support biodiversity, but outside stressors, such as climate change and land use change, can negatively influence natural resources within protected areas.
Leah J. Rudge +2 more
wiley +1 more source
Ecology and Evolution, 2023 Effective wildlife management requires robust information regarding population status, habitat requirements, and likely responses to changing resource conditions.
Nicholas J. Van Lanen +2 more
doaj +1 more source
Insights from Project FeederWatch: Changes in the abundance and occurrence of birds in New Hampshire over the past 24 years [PDF]
, 2014 Changes in the climate and land use over time can lead to changes in the composition of wildlife communities. Using data from Project FeederWatch, we examine trends in the abundance and occurrence of birds documented in the winters from 1988 to 2012 in ...
Sutcliffe, Lee A
core +2 more sources
A Sing-Song Way of Vocalizing: Generalization and Specificity in Language and Birdsong. [PDF]
, 2017 Spoken languages such as German are extremely discrete, whereas others such as Portuguese are melodic or "sing-song" wherein identifying a word relies on what comes before and after.
Farias-Virgens, Madza +1 more
core +1 more source
Ethology, EarlyView.(A) A ferruginous pygmy‐owl (Glaucidium brasilianum) photo and 3D model. (B) A chestnut‐capped warbler (Basileuterus delattrii) photo and 3D model for control treatment. (C) A ferruginous pygmy owl call spectrogram. (D) A chestnut‐capped warbler song spectrogram.
Natalie V. Sánchez, Daniel J. Mennill
wiley +1 more source
Why Do Birds Flock? A Role for Opioids in the Reinforcement of Gregarious Social Interactions
Frontiers 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
Determining Presence/Absence and Abundance of Declining Shrubland-Dependent Songbirds in Human-created Shrublands in Southeastern New Hampshire [PDF]
, 2016 Shrubland habitat and wildlife species have been declining throughout most of New England since the 1950s. Many songbirds have been declining at a rate of 4 to 7 percent per year in New England, and these species require large openings to breed.
Gibson Kerr, Jenny Leigh, Holm, Erica
core +1 more source