منابع مشابه
California Sea Lions Use Dolphins to Locate Food
Aggregations by 3 species of dolphins (the bottlenose dolphin [Tursiops truncatus], the short-beaked common dolphin [Delphinus delphis], and the long-beaked common dolphin [Delphinus capensis]) and California sea lions (Zalophus californianus) were investigated in Santa Monica Bay, California. Groups were followed and observed during 201 boat-based surveys conducted in 1997–2001 documenting tha...
متن کاملSea Lions of the World
Three species of otariids are found in the coastal zone and marine area of Ecuador and the Galápagos Islands. Two species, Galápagos sea lion (Zalophus wollebaeki ) and Galápagos fur seal (Arctocephalus galapagoensis), are endemic to the Galápagos. The South American sea lion (Otaria flavescens) has been recorded several times on the Ecuadorian coast, and even small semi-permanent or resident m...
متن کاملAcoustic identification of female Steller sea lions
Steller sea lion (Eumetopias jubatrn) mothers and pups establish and maintain contact with individually distinctive vocalizations. Our objective was to develop a robust neural network to classify females based on their mother-pup contact calls. We catalogued 573 contact calls from 25 females in 1998 and 1323 calls from 46 females in 1999. From this database, a subset of 26 females with sufficie...
متن کاملSteller Sea Lions and Fisheries: Competition at Sea?
.................................................................................................................................. ii PREFACE ..................................................................................................................................... iii TABLE OF CONTENTS ......................................................................................................
متن کاملLeptospirosis epizootic among California sea lions.
A Leptospira species is suspected of being the etiological agenit in a recent epizootic among California sea lions. The disease was confined to subadult males of the species Zalophus c. californianus.
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ژورنال
عنوان ژورنال: Science
سال: 1901
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.13.333.777