Storage of Surplus Food by the Boreal Chickadee Parus hudsonicus in Alaska, with Some Records on the Mountain Chickadee Parus gambeli in Colorado

1974 ◽  
Vol 5 (2) ◽  
pp. 145 ◽  
Author(s):  
Svein Haftorn
2019 ◽  
Vol 22 (6) ◽  
pp. 1113-1122 ◽  
Author(s):  
Adrianne C. Hajdasz ◽  
Ken A. Otter ◽  
Lyn K. Baldwin ◽  
Matthew W. Reudink
Keyword(s):  

The Auk ◽  
1888 ◽  
Vol 5 (1) ◽  
pp. 118-119
Author(s):  
R. S. Williams
Keyword(s):  

The Auk ◽  
1928 ◽  
Vol 45 (1) ◽  
pp. 104-105 ◽  
Author(s):  
A. J. Van Rossem
Keyword(s):  

The Auk ◽  
1986 ◽  
Vol 103 (4) ◽  
pp. 667-675 ◽  
Author(s):  
Michael J. Braun ◽  
Mark B. Robbins

Abstract Starch gel electrophoresis of proteins was used to assess genetic differentiation and introgression across a contact zone between Parus atricapillus and P. carolinensis. Little or no differentiation was found at 35 presumed genetic loci, even between distantly allopatric population samples. Nei's (1978) genetic distance (D) was ≤0.001 for all comparisons. In contrast, Parus gambeli, another chickadee known to hybridize with atricapillus, was well differentiated at 3 loci (D ≈ 0.065). While the data suggest that atricapillus and carolinensis are closely related, they do not allow conclusions on the extent of introgression across the contact zone. The implications of these data are discussed in the light of the emerging pattern of isozyme variation in birds.


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