R. L. Pitman

Publications81
h-index30
Citations3,452
Highly Influential Citations266
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Marine Mammals of the World: A Comprehensive Guide to Their Identification
With coverage on all the marine mammals of the world, authors Jefferson, Webber, and Pitman have created a user-friendly guide to identify marine mammals alive in nature (at sea or on the beach),… Expand
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Three forms of killer whales (Orcinus orca) in Antarctic waters
This paper provides field descriptions and biological observations of three different forms of killer whale ( Orcinus orca) that occur in Antarctica based on field observations and a review of… Expand
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SEABIRD COMMUNITY STRUCTURE ALONG A PRODUCTIVITY GRADIENT: IMPORTANCE OF COMPETITION AND ENERGETIC CONSTRAINT
The oceanic eastern tropical Pacific supports a speciose seabird community that feeds in flocks and depends for food on schools of tunas and dolphins, which force prey to the surface. We analyzed… Expand
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Oceanographic influences on seabirds and cetaceans of the eastern tropical Pacific: A review
Abstract This paper is part of a comprehensive review of the oceanography of the eastern tropical Pacific, the oceanic region centered on the eastern Pacific warm pool, but also including the… Expand
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First human-caused extinction of a cetacean species?
The Yangtze River dolphin or baiji (Lipotes vexillifer), an obligate freshwater odontocete known only from the middle-lower Yangtze River system and neighbouring Qiantang River in eastern China, has… Expand
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CETACEANS OF THE WESTERN TROPICAL INDIAN OCEAN: DISTRIBUTION, RELATIVE ABUNDANCE, AND COMPARISONS WITH CETACEAN COMMUNITIES OF TWO OTHER TROPICAL ECOSYSTEMS
We conducted a cetacean survey in the pelagic western tropical Indian Ocean (WTIO) aboard an 85-m research vessel from March to July 1995, covering 9,784 linear km. Using 25 × binoculars and… Expand
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Abundance and conservation status of the Yangtze finless porpoise in the Yangtze River, China
middle and lower reaches of the Yangtze River, China. It is the only freshwater population of porpoises in the world and is currently listed as Endangered by IUCN. In November and December 2006 we… Expand
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Known and inferred distributions of beaked whale species (Cetacea: Ziphiidae)
Information regarding beaked whales is so sparse that even the most basic aspects of their biology, such as their distribution, remain poorly defined for some species. We have reviewed the known… Expand
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Geographic patterns of genetic differentiation among killer whales in the northern North Pacific.
The difficulties associated with detecting population boundaries have long constrained the conservation and management of highly mobile, wide-ranging marine species, such as killer whales (Orcinus… Expand
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At-sea density and abundance estimates of the olive ridley turtle Lepidochelys olivacea in the eastern tropical Pacific
ABSTRACT: The first at-sea estimates of density and abundance of the olive ridley turtle Lepi-dochelys olivacea in the eastern tropical Pacific (ETP) were produced from shipboard line-transectdata.… Expand
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