文档介绍：SUBSPECIFIC IDENTITY OF PREHISTORIC BALTIC
CORMORANTS PHALACROCORAX CARBO
PER . ERICSON! & FRANCISCO HERNANDEZ CARRASQUILLA2
Ericson . & Carrasquilla 1997. Subspecific identity of
prehistoric Baltic Cormorants Phalacrocorax carbo. Ardea 85: 1-7.
Cormorants of the subspecies Phalacrocorax carbo sinensis breed in large
numbers in the Baltic Sea. They migrate to the Mediterranean region to
winter and are then replaced in the Baltic by wintering individuals of the
Norwegian population of the nominate subspecies carbo. Cormorants bred
in the Baltic during prehistoric times too, but as evident from parison
of skeletal measurements in present-day and prehistoric Cormorants, these
individuals belonged to the nominate subspecies carbo. The Swedish sub•
fossil record of the Cormorants available for study, does not include any re•
mains small enough to suggest the presence of sinensis. Precisely when the
subspecies sinensis immigrated into the Baltic is unknown, but it must ha•
ve occurred sometime between 1500 and 1800 AD.
Key words: Sweden - Baltic Sea - Phalacrocorax carbo sinensis - subspe•
cies - faunal history
lSwedish Museum of Natural History, . Box 50007, S-10405 Stock•
holm, Sweden; E-mail: p.******@; 2Laboratorio de Arqueozoolo•
gia, Universidad Autonoma de Madrid, 28049 Madrid, Spain.
INTRODUCTION Cormorant