MIGRATION AND DISPERSAL OF AUDOUINS GULL LARUS-AUDOUINII FROM THE EBRO DELTA COLONY

被引：29

作者：

ORO, D

MARTINEZ, A

机构：

[1] Departament Biologia Animal, Barcelona, 08028, Vertebrats

[2] Pare Natural del Delta de l’Ebre, Deltebre, 43580

来源：

OSTRICH | 1994年 / 65卷 / 02期

关键词：

D O I：

10.1080/00306525.1994.9639686

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Migratory paths and dispersal patterns of Audouin's Gulls (Larus audouinii) born in the Ebro Delta have been studied, as well as their degree of philopatry. The gulls always disperse southwards from the colony, and only the juveniles seem to disperse in other directions. Dispersal patterns of 2y, 3y and older gulls are similar, wintering mainly on Iberian Mediterranean and Moroccan Atlantic coasts. Juveniles migrate before the rest of the age classes and they winter south of older guns, in the Senegambia region. However, conclusions on Audouin's Gulls movements are difficult to draw, owing to the large differences in resighting and recovery efforts. Data presented also suggest that Audouin's Gulls do not appear to breed before the age of four years.

引用

页码：225 / 230

页数：6

共 28 条

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