Results 121 to 130 of about 15,406 (254)

Not all crickets are equal: selective shrike predation highlights the conservation value of diverse arthropod communities to grassland birds

Ibis, EarlyView.
Understanding dietary preferences and prey selection is pivotal for interpreting the ecology and conservation needs of threatened species. We investigated the diet composition and prey selection of the Red‐backed Shrike Lanius collurio in a montane grassland of the central Italian Apennines, with special regard to sex‐related differences and the ...
Leonardo Ancillotto, Sauro Giannerini, Matteo Bianchi, Giulia Santalmasi, Marco Zaccaroni, Tommaso Lipparelli, Matteo Annessi, Jacopo Martino, Emiliano Mori   +8 more
wiley   +1 more source

Alpine songbirds at higher elevations are only raised with a slight delay and therefore under harsher environmental conditions

Ecology and Evolution
The breeding phenology of birds is often timed to coincide with a peak in food availability. However, the shortening of the vegetation period with increasing elevation may force bird species at high elevations to breed earlier in relation to optimal ...
Julia Paterno, Fränzi Korner‐Nievergelt, Stefanie Gubler, Pia Anderwald, Valentin Amrhein   +4 more
doaj   +1 more source

The Relationship between Grinnellian and Eltonian Niche Characteristics and Passerine Distribution across a Latitudinal Gradient

Diversity
The degree to which Grinnellian and Eltonian niche characteristics influence species distribution may depend on latitude. Tropical regions are environmentally stable and resource-rich, whereas temperate regions are comparatively less environmentally ...
Erin E. Stukenholtz, Richard D. Stevens
doaj   +1 more source

A longitudinal study of avian pox in a small passerine, the Dunnock (Prunella modularis)

Ibis, EarlyView.
Long‐term, longitudinal studies of disease in wild bird populations are rare. Diseases are important determinants of bird survival and may spill‐over into other species including livestock and, in some cases, humans. Avian pox is a globally distributed disease, resulting from infection by viruses in the genus Avipoxvirus (APV).
Denise C. Wawman, Steven R. Fiddaman, Becki Lawson, Maria D. Christodoulou, Ben C. Sheldon, Adrian L. Smith   +5 more
wiley   +1 more source

Important Aspects of the Design of Experiments and Data Treatment in the Analytical Quality by Design Framework for Chromatographic Method Development

Molecules
In the analytical quality by design (AQbD) framework, the design of experiments (DOE) plays a very important role, as it provides information about how experimental input variables influence critical method attributes.
Bianca F. G. Passerine, Márcia C. Breitkreitz   +1 more
doaj   +1 more source

Post‐hatching development of the remote‐tactile bill‐tip organ in precocial shorebirds (Scolopacidae)

Journal of Anatomy, EarlyView.
Juvenile scolopacid shorebirds possess well‐developed osteological correlates of tactile bill‐tip organs, indicating sensory systems for remote‐touch foraging are present from early life. Ontogenetic changes in bill‐tip morphology suggest ecological specialisation and interspecific variation develop later, after fledging in these highly precocial ...
Carla J. du Toit, Anyaise Green, Daniel J. Field   +2 more
wiley   +1 more source

Relationship between carina size and sternum morphology in birds reflects physical constraints of body size and flight style

Journal of Anatomy, EarlyView.
Sternum morphology varies among birds and is a function of body mass and order. The area of the sternum is inversely related to the area of the keel suggesting that the increase in bone mass associated with a large keel has been mitigated by a reduction in bone mass of the sternum.
D. C. Deeming
wiley   +1 more source

Cellular scaling roles for passerine brains

, 2013
Many passerine birds, particularly corvids, are known to express complex cognitive skills comparable to those observed in primates. In order to examine how these similarities are reflected at the cellular level, I counted neurons and nonneuronal cells in
Kocourek, Martin
core  

Patterns of landscape seasonality influence passerine diversity: Implications for conservation management under global change

, 2018
We acknowledge the Portuguese Foundation for Science and Technology (FCT) and COMPETE through the project grant “IND_CHANGE” (PTDC/AAG-MAA/4539/2012- FCOMP-01-0124-FEDER-027863).
Alves, Paulo, Gonçalves, João, Marcos, Bruno, Monteiro, Antonio, Honrado, João, Civantos Calzada, Emilio   +5 more
core   +1 more source

Syrinx anatomy and vocalizations in New World vultures (Aves: Cathartidae): Implications for avian vocal evolution

Journal of Anatomy, EarlyView.
New World vultures are the only avian clade proposed to lack a syrinx and have been described as non‐vocal. Using dissection, diceCT, and histology, we demonstrate that cathartid vultures have novel syringeal features that form a syrinx and vocal characterization reveals that they produce more complex vocalizations than previously reported.
Bradley A. Ibarra, Carmen A. Urban, Lucas J. Legendre, Julia A. Clarke   +3 more
wiley   +1 more source