Results 41 to 50 of about 35,333 (214)

The Feasibility of Counting Songbirds Using Unmanned Aerial Vehicles

, 2017
Obtaining unbiased survey data for vocal bird species is inherently challenging due to observer biases, habitat coverage biases, and logistical constraints.
Barr, Janine M., Wilson, Andrew M., Zagorski, Megan E.   +2 more
core   +1 more source

Influences of environmental and biological factors on song complexity in songbirds : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Ecology at Massey University, Auckland, New Zealand [PDF]

, 2017
Content removed due to copyright reasons: Hill, S. D., Pawley, M. D. M., Anderson, M. G., & Weihong, J. (2017). Higher song complexity and intruder pressure at dawn in a vocally complex songbird. Emu - Austral Ornithology, 118(2), 147-157.
Hill, Samuel David
core  

Airport noise predicts song timing of European birds [PDF]

, 2016
Anthropogenic noise is of increasing concern to biologists and medical scientists. Its detrimental effects on human health have been well studied, with the high noise levels from air traffic being of particular concern.
Arroyo-Solís, Barber, Brumm, Brumm, Brumm, Brumm, Brumm, Burger, Catchpole, Dominoni, Dominoni, Dominoni, Dominoni, Dominoni, Dooling, Dorado-Correa, Francis, Fuller, Gil, Gil, Halfwerk, Kempenaers, Kight, Kight, Krebs, Kyba, Lampe, McGregor, McNamara, Nemeth, Nordt, Poesel, Riebel, Silva, Simpson, Slater, Sun, Swaddle, Thomas, Ware, Yang   +40 more
core   +2 more sources

Endothermy, neuron counts, and other issues: Further remarks on neurocognitive evolution in fossil vertebrates

The Anatomical Record, EarlyView.
Abstract Last year, we challenged the view that large‐bodied theropod dinosaurs such as Tyrannosaurus rex resembled primates in cognition and behavior, a proposition made by Herculano‐Houzel in 2023. More recently, Jensen et al. have criticized our work on this topic, raising methodological and conceptual issues.
Kai R. Caspar, Cristián Gutiérrez‐Ibáñez, Hady George, Thomas R. Holtz Jr., Darren Naish, Grant R. Hurlburt   +5 more
wiley   +1 more source

Projected responses of North American grassland songbirds to climate change and habitat availability at their northern range limits in Alberta, Canada

Avian Conservation and Ecology, 2016
Across North America, grassland songbirds have undergone steep population declines over recent decades, commonly attributed to agricultural intensification.
Amy E. Nixon, Ryan J. Fisher, Diana Stralberg, Erin M. Bayne, Dan R. Farr   +4 more
doaj   +1 more source

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

Biological Reviews, EarlyView.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz, Maja Mielke, Stephan Handschuh, Anthony Herrel, Patrick Lemell, Léa Da Cunha, Nicolai Konow   +6 more
wiley   +1 more source

Evidence of Songbird Intoxication From Rozol Application at a Black-Tailed Prairie Dog Colony [PDF]

, 2013
Concerns about avian poisonings from anticoagulant rodenticides have traditionally focused on secondary poisoning of raptors exposed by feeding on contaminated mammalian prey.
Hulse, Craig S., Meteyer, Carol U., Rice, Clifford P., Vyas, Nimish B.   +3 more
core   +1 more source

Experimental inhibition of a key cellular antioxidant affects vocal communication [PDF]

, 2017
1. There is substantial interest of evolutionary ecologists in the proximate mechanisms that modulate vocal communication. In recent times, there has been growing interest in the role of oxidative stress as a mediator of avian song expression. 2.
Feare C.J., Griffith O.W., Griffith O.W., Halliwell B.H., Koren L., Messina S., R Core Team, Spencer K.A.   +7 more
core   +3 more sources

Studying interspecific population synchrony: current status and future perspectives

Ecography, EarlyView.
Interspecific population synchrony, or co‐fluctuations in the population dynamics and demographic parameters of different species, is an important ecological phenomenon with major implications for the stability of communities and ecosystems. It is also central in the context of biodiversity loss, as interspecific synchrony can influence how ecological ...
Ragnhild Bjørkås, Ivar Herfindal, Marlène Gamelon, Aline Magdalena Lee   +3 more
wiley   +1 more source

In Search for the Avian Trigeminal Magnetic Sensor: Distribution of Peripheral and Central Terminals of Ophthalmic Sensory Neurons in the Night-Migratory Eurasian Blackcap (Sylvia atricapilla)

Frontiers in Neuroanatomy, 2022
In night-migratory songbirds, neurobiological and behavioral evidence suggest the existence of a magnetic sense associated with the ophthalmic branch of the trigeminal nerve (V1), possibly providing magnetic positional information. Curiously, neither the
Katrin Haase, Isabelle Musielak, Leonie Warmuth-Moles, Bo Leberecht, Anna Zolotareva, Henrik Mouritsen, Henrik Mouritsen, Dominik Heyers, Dominik Heyers   +8 more
doaj   +1 more source