Results 41 to 50 of about 6,755 (259)

Within-pair Copulations: Are Female Tree Swallows Feathering Their Own Nests? [PDF]

, 1995
A variety of hypotheses has been proposed to explain why socially monogamous birds copulate repeatedly with their mates when only a single copulation is necessary to fertilize an entire clutch (Birkhead and Møller 1992, Petrie 1992, Hunter et al. 1993).
Lombardo, Michael P
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Mercury exposure to swallows breeding in Canada inferred from feathers grown on breeding and non-breeding grounds

, 2020
Aerial insectivorous birds such as swallows have been the steepest declining groups of birds in North America over the last 50 years but whether such declines are linked to contaminants has not been examined.
Kardynal, KJ, Hobson, KA, Mitchell, GW, Génier, CSV, Bumelis, KH, Evans, M, Jardine, TD   +6 more
core   +1 more source

Convergent evolution in social swallows (Aves: Hirundinidae) [PDF]

, 2016
Behavioral shifts can initiate morphological evolution by pushing lineages into new adaptive zones. This has primarily been examined in ecological behaviors, such as foraging, but social behaviors may also alter morphology.
Brown, Mary B., Mary Bomberger Brown, Brown, Mary Bomberger, Jonathan S. Mitchell, Mitchell, Jonathan S., Allison E. Johnson, Johnson, Allison E.   +6 more
core   +1 more source

Evaluation of Dried Plasma Spot‐Based Quantification of Glial Fibrillary Acidic Protein as a Disease‐Associated Biomarker in Neuromyelitis Optica Spectrum Disorder

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate the diagnostic accuracy of glial fibrillary acidic protein (GFAP) measured in dried plasma spots versus conventional plasma‐ and serum‐GFAP testing for assessment of disease severity in aquaporin‐4 immunoglobulin G–positive neuromyelitis optica spectrum disorder (AQP4‐IgG+ NMOSD).
Felix Wohlrab, Evelyn Alvarez, Roua Hamdi, Bingqing Zhang, Hayeun Ji, Niyati Jhaveri, Patrick Schindler, Pedro Sanchez, Pia S. Sperber, Tanja Schmitz‐Hübsch, Frederike C. Oertel, Nisa Vorasoot, Najib Kissani, Falko Böhringer, Jens Kuhle, Anne‐Katrin Pröbstel, Xiao‐Jun Ma, Péter Körtvelyessy, Patrick Waters, Friedemann Paul   +19 more
wiley   +1 more source

Data from Opposing population trends of fork-tailed swallows and reddish-coloured swallows in our changing world

, 2020
Data from Opposing population trends of fork-tailed swallows and reddish-coloured swallows in our changing ...
Masaru Hasegawa, Emi Arai
core   +1 more source

An investigation on the relationship between the number of Barn Swallow (Hirundo rustica) and environmental parameters in Jelebu, Peninsular Malaysia

Kuwait Journal of Science
Swallows (Hirundo spp.) inhabit a variety of habitats in both tropical and temperate zones. Barn Swallows (Hirundo rustica), in particular, frequently roost in large numbers and construct mud nests on buildings, causing nuisance to humans.
M. Fazi S., Kaur R., N. Hashim N.E.
doaj   +1 more source

Roosts and migrations of swallows

El Hornero, 2006
Swallows of the north temperate zone display a wide variety of territorial behaviour during the breeding season, but as soon as breeding is over, they all appear to adopt a pattern of independent diurnal foraging interleaved with aggregation every night
David W. Winkler
doaj   +1 more source

Physiological and pathological roles of the accommodation response in lower esophageal sphincter relaxation during wet swallows

Scientific Reports, 2021
The preparatory accommodation response of lower esophageal sphincter (LES) before swallowing is one of the mechanisms involved in LES relaxation during wet swallows, however, the physiological and/or pathological roles of LES accommodation remain to be ...
Kazumasa Muta, Eikichi Ihara, Shohei Hamada, Hiroko Ikeda, Masafumi Wada, Yoshitaka Hata, Xiaopeng Bai, Yuichiro Nishihara, Yoshimasa Tanaka, Haruei Ogino, Yoshihiro Ogawa   +10 more
doaj   +1 more source

Neurological, Neurodevelopmental and Treatment Outcomes in Patients With Pyruvate Dehydrogenase Complex Deficiency

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The aim of this study was to characterize intellectual and motor function, neurological features including epilepsy, treatment response, and adaptive behavior in patients with pyruvate dehydrogenase complex deficiency (PDCD) in Sweden.
Antri Savvidou, Colin Reilly, Kalliopi Sofou, Sofia Ygberg, Erik A. Eklund, Karin Naess, Niklas Darin   +6 more
wiley   +1 more source

Communities of Cloacal Bacteria in Tree Swallow Families [PDF]

, 1996
Our aim in this study was to survey the communities of bacteria found in the cloacae of adult and nestling Tree Swallows (Tachycineta bicolor), determine if there were familial patterns of prevalence, and determine if there were relationships between ...
Thorpe, Patrick A, Zeller, T. K, Steen, C., Cichewicz, R., Millard, C., Henshaw, M., Lombardo, Michael P   +6 more
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