Results 121 to 130 of about 6,958 (245)
Ibis, EarlyView.Parental care strategies have evolved to ensure optimal offspring rearing under varying environmental conditions. Nest attendance is a fundamental behaviour providing protection against predators and adverse weather, but it is traded against time spent foraging.
Valentijn Serge van Bergen +3 more
wiley +1 more source
Ibis, EarlyView.Seabirds play key ecological roles but face increasing threats worldwide. Among them, Tītī (Sooty Shearwater) Ardenna grisea are among the most abundant and culturally significant species in the Southern Hemisphere but are also threatened. Kapiti Island, Aotearoa (New Zealand), holds a Tītī colony which, despite eradication of non‐native mammalian ...
Etienne Ossona De Mendez +7 more
wiley +1 more source
Courtship display behavior influences tail myology in Centrocercus minimus (Gunnison sage‐grouse)
Journal of Anatomy, EarlyView.Courtship displays among birds are widespread, particularly those which incorporate raised tail feathers for extended periods of time. The Gunnison sage‐grouse (Centrocercus minimus) is such a species. When we compared the tail muscles of the sage‐grouse to birds which do not engage in erected tail fan postures, both morphology proportional mass ...
Alexander D. Clark +3 more
wiley +1 more source
Journal of Anatomy, EarlyView.Simple rhamphotheca are externally homogeneous but internally are composed of several corneous layers with varying hardness. Areas under more mechanical stress such as the rostral portion and the tomia are significantly harder than other areas. Abstract Corneous sheaths on the jaws of beaked tetrapods, or rhamphothecae, are classified as simple or ...
Khanh H. T. To +2 more
wiley +1 more source
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 +2 more
wiley +1 more source
Detection of endogenous lipids in chicken feathers distinct from preen gland constituents. [PDF]
Protoplasma, 2020 Zeisler-Diehl V +5 more
europepmc +1 more source
Characterisation of human hair follicle development
Journal of Anatomy, EarlyView.Schematic of hair follicle development in human skin. Hair follicle primordia of similar sizes, but different densities, are laid out across the skin. The distinction between terminal and vellus hair sites is not obvious at early stages of hair follicle development.
Zoe R. Sudderick +4 more
wiley +1 more source
Asymmetric Pass‐Through and Competition
The Journal of Industrial Economics, EarlyView.ABSTRACT We study the retail price pass‐through of four major tax changes in petroleum products using daily pricing data from gas stations on small Greek islands. We find that (i) the pass‐through of the tax hikes is five times higher than for the tax decrease, (ii) the pass‐through of the tax hikes increases with competition, while that of the tax ...
Christos Genakos +2 more
wiley +1 more source
Thermoplastics obtaining from chicken feathers
, 2016 Se obtuvieron películas de termoplásticos biodegradables a partir de queratina de plumas de pollo. Las plumas de pollo contienen en su mayor parte una proteína llamada queratina, la cual fue la sustancia principal de estudio en la investigación, ya que luego de ser extraída se procedió a polimerizar, para así producir el termoplástico.
Calle Guadalupe, Luis +2 more
openaire +1 more source
An Unusual Case of Nannizzia praecox – Infection with new observations on the pathogen
JDDG: Journal der Deutschen Dermatologischen Gesellschaft, EarlyView.
Katharina Antonia Langen +3 more
wiley +1 more source