Exogenous Stages of Eimeria bemricki n. sp. (Apicomplexa: Eimeriidae) from the Great Gray Owl, Strix nebulosa (Foster)

1998 ◽  
Vol 84 (5) ◽  
pp. 976 ◽  
Author(s):  
Gary A. Averbeck ◽  
Jeffery D. Cooney ◽  
Toni R. Guarnera ◽  
Patrick Redig ◽  
Bert E. Stromberg
Keyword(s):  
Strix Nebulosa ◽  
Great Gray Owl

The Diet of the Great Gray Owl, Strix nebulosa, at Different Levels of Prey Abundance during the Nesting Season

2019 ◽  
Vol 50 (1) ◽  
pp. 43-49
Author(s):  
Yu. E. Kropacheva ◽  
N. G. Smirnov ◽  
S. V. Zykov ◽  
M. I. Cheprakov ◽  
N. O. Sadykova ◽  
...  
Keyword(s):  
Prey Abundance ◽  
Strix Nebulosa ◽  
Great Gray Owl ◽  
Different Levels ◽  
Nesting Season

A New Subspecies of Great Gray Owl (Strix nebulosa) in the Sierra Nevada of California, U.S.A.

2014 ◽  
Vol 48 (1) ◽  
pp. 68-77 ◽  
Author(s):  
Joshua M. Hull ◽  
Andrew Englis ◽  
Joseph R. Medley ◽  
Eric P. Jepsen ◽  
James R. Duncan ◽  
...  
Keyword(s):  
Sierra Nevada ◽  
New Subspecies ◽  
Strix Nebulosa ◽  
Great Gray Owl

Great Gray Owl (Strix nebulosa)

1993 ◽  
Author(s):  
Evelyn L. Bull ◽  
James R. Duncan
Keyword(s):  
Strix Nebulosa ◽  
Great Gray Owl

scholarly journals Dytiscid Beetle Remains Discovered in a Pellet from a Great Gray Owl, Strix nebulosa, Nest

2008 ◽  
Vol 122 (1) ◽  
pp. 78
Author(s):  
Kevin C. R. Kerr
Keyword(s):  
Strix Nebulosa ◽  
Great Gray Owl ◽  
Diving Beetle

On 18 July 2007, near Goose Creek, south of Churchill Manitoba, a Great Gray Owl, Strix nebulosa, pellet that contained the pronotum and elytra of a predacious diving beetle, Dytiscus alaskanus, was discovered at a nest.

Great Gray Owl (Strix nebulosa)

1993 ◽  
Author(s):  
Evelyn L. Bull ◽  
James R. Duncan
Keyword(s):  
Strix Nebulosa ◽  
Great Gray Owl

Great Gray Owl (Strix nebulosa)

1993 ◽  
Author(s):  
Evelyn L. Bull ◽  
James R. Duncan
Keyword(s):  
Strix Nebulosa ◽  
Great Gray Owl

Great Gray Owl (Strix nebulosa)

2020 ◽  
Author(s):  
Evelyn L. Bull ◽  
James R. Duncan
Keyword(s):  
Strix Nebulosa ◽  
Great Gray Owl

Development of 37 microsatellite loci for the great gray owl (Strix nebulosa) and other Strix spp. owls

2007 ◽  
Vol 9 (5) ◽  
pp. 1357-1361 ◽  
Author(s):  
Joshua M. Hull ◽  
John J. Keane ◽  
Lisa A. Tell ◽  
Holly B. Ernest
Keyword(s):  
Microsatellite Loci ◽  
Strix Nebulosa ◽  
Great Gray Owl

Nutritional stress and body condition in the Great Gray Owl (Strix nebulosa) during winter irruptive migrations

2012 ◽  
Vol 90 (7) ◽  
pp. 787-797 ◽  
Author(s):  
Gary R. Graves ◽  
Seth D. Newsome ◽  
David E. Willard ◽  
David A. Grosshuesch ◽  
William W. Wurzel ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Body Condition ◽  
Nutritional Stress ◽  
Poor Condition ◽  
Nonbreeding Season ◽  
Physiological Processes ◽  
Strix Nebulosa ◽  
Stable Isotope Signatures ◽  
Great Gray Owl ◽  
Reversed Sexual Size Dimorphism

The largest irruptive migration of the Great Gray Owl ( Strix nebulosa Forster, 1772) recorded since 1831 occurred in Minnesota, USA, during the winter of 2004–2005. We tested the hypothesis that morphometric indicators of nutritional stress covary with stable isotope signatures in a sample of 265 owls killed by vehicle collisions. The ratio of carbon to nitrogen in muscle (C/Nmuscle) was shown to be a reliable proxy of nutritional stress. δ13C values for liver and muscle were significantly higher in owls in poor condition, reflecting the depletion of lipid reserves in fasting individuals. On the other hand, δ15N values for liver and muscle were marginally lower or unchanged in owls in poor condition. Stomachs of emaciated owls were less likely to contain prey, implying that many nutritionally stressed individuals were too weak to hunt and were near the tipping point of irreversible fasts. In a broader context, sexual differences in the correlative relationships between stable isotope signatures, C/N, and body condition suggest that the consequences of reversed sexual size dimorphism extend to physiological processes during the nonbreeding season.

Great Gray Owl (Strix nebulosa)

1993 ◽  
Author(s):  
Evelyn L. Bull ◽  
James R. Duncan
Keyword(s):  
Strix Nebulosa ◽  
Great Gray Owl
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