ISSN:0019-1019    

DOI:10.1111/j.1474-919X.1963.tb06767.x

出版商:Blackwell Publishing Ltd    

年代:1963

数据来源: WILEY

摘要:

SUMMARYThe lengths and greatest diameters of over 2,000 eggs of ten species of sea‐birds were measured on Ascension Island and off‐lying stacks; some eggs were also weighed. Means with standard deviations and extreme measurements are presented, together with brief descriptions and a short discussion of egg shape, size, and variability within and between spec

ISSN:0019-1019    

DOI:10.1111/j.1474-919X.1963.tb06768.x

出版商:Blackwell Publishing Ltd    

年代:1963

数据来源: WILEY

摘要:

SUMMARYLaying dates of six species of sea‐birds on St. Helena were determined in the spring and summer of 1958–59 by members of the B.O.U. Centenary Expedition on two visits from Ascension Island. Laying dates of the same species on Ascension Island are compared. Only two species showed close seasonal agreement between the two isla

ISSN:0019-1019    

DOI:10.1111/j.1474-919X.1963.tb06769.x

出版商:Blackwell Publishing Ltd    

年代:1963

数据来源: WILEY