scholarly journals The First Record of Blue Morph Lesser Snow Goose Anser caerulescens caerulescens in Japan

2012 ◽  
Vol 43 (2) ◽  
pp. 177-183
Author(s):  
Yutaka Sabano ◽  
Sachiko Uemur ◽  
Masayuki Kurechi
1981 ◽  
Vol 59 (7) ◽  
pp. 1201-1204 ◽  
Author(s):  
Susan M. Cargill ◽  
Fred Cooke

Lesser snow goose nests were monitored daily during laying and hatching. Within each clutch, eggs were numbered serially as they were laid. Subsequently, the order of hatching within clutches was determined. In nests where three to five eggs hatched, the sequence of hatching was strongly dependent on the laying sequence. This implies that some development of embryos occurred throughout the laying period, so that the young varied in the stage of development attained prior to the onset of incubation. This inequality persisted until hatching, resulting in the observed asynchrony. Evidence from other workers suggests that development during laying occurs in some other waterfowl species, but does not necessarily result in asynchronous hatching or correlation of hatching and laying sequences.


1977 ◽  
Vol 15 (7-8) ◽  
pp. 741-763 ◽  
Author(s):  
Thaddeus A. Bargiello ◽  
Joseph Grossfield ◽  
R. W. Steele ◽  
Fred Cooke

Oecologia ◽  
1983 ◽  
Vol 56 (2-3) ◽  
pp. 318-322 ◽  
Author(s):  
Robert F. Rockwell ◽  
C. Scott Findlay ◽  
Fred Cooke

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