Between-lake differences in the diet and provisioning behaviour of Black-throated Divers Gavia arctica breeding in Scotland

Autor: Digger B. Jackson
Rok vydání: 2002
Předmět:
Zdroj: Ibis. 145:30-44
ISSN: 0019-1019
DOI: 10.1046/j.1474-919x.2003.00119.x
Popis: Surveys at 23 Black-throated Diver breeding lakes in Scotland showed large between-lake differences in the species and size range of potential prey. The study lakes were classified into four types according to the main size-taxa prey classes present. Type 1 lakes lacked small fish, Type 4 lacked salmonids
Databáze: OpenAIRE