Aberrant horn growth and masculine behavior in a female bighorn sheep from the North Dakota badlands

1989 ◽  
Vol 67 (6) ◽  
pp. 1602-1604
Author(s):  
William F. Jensen ◽  
Robert W. Seabloom ◽  
James V. Mckenzie

On 11 March 1987 an adult female bighorn sheep (Ovis canadensis californiana) with abnormally large horns was captured in the badlands of North Dakota. Subsequent observations of this individual suggested malelike behavior. Possible explanations of this abnormal horn growth and behavior are a genetic defect or an endocrine imbalance.

2012 ◽  
Vol 128 (3-4) ◽  
pp. 92-94
Author(s):  
Jeffrey C. Beane ◽  
L. Todd Pusser

Abstract Nesting behavior in the Northern Pine Snake (Pituophis m. melanoleucus) is poorly documented outside of the New Jersey Pine Barrens. Two natural nests of P. m. melanoleucus are described from the North Carolina Sandhills. One was modified from a pre-existing subterranean refugium, and was also used by at least one adult male; one adult female; and one post-emergent, post-ecdytic hatchling Pine Snake during the same season.


2002 ◽  
Author(s):  
Gregg J. Wiche ◽  
K.G. Guttormson ◽  
S.M. Robinson ◽  
G.B. Mitton ◽  
B.J. Bramer
Keyword(s):  

1938 ◽  
Vol 46 (1) ◽  
pp. 23-51
Author(s):  
Gilbert W. Cooke
Keyword(s):  

2004 ◽  
Vol 40 (2) ◽  
pp. 311-315 ◽  
Author(s):  
Terry J. Kreeger ◽  
Walter E. Cook ◽  
William H. Edwards ◽  
Todd Cornish

1965 ◽  
Vol 97 (6) ◽  
pp. 561-580 ◽  
Author(s):  
Richard B. Selander

Abstract>Three species are recognized in the North American genus Megetra LeConte. The most distinctive of these anatomically and ecologically is M. cancellata (Brandt and Erichson), which ranges discontinuously from Arizona and New Mexico to the state of Hidalgo in México and occurs in limited sympatry with both of its congeners. Megetra vittata (LeConte) ranges from northern Arizona to western Texas. It appears to be strictly allopatric with, and similar ecologically to, M. punctata, new species, which ranges from southern Arizona and New Mexico to Durango, México. Specific diagnoses are made on the basis of characters of adult and, for M. cancellata and M. punctata, larval anatomy. Intraspecific variation in several adult characters is analyzed. Notes on the seasonal distribution, habitat, and behavior of the adult beetles are included.


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