Results 71 to 80 of about 954 (183)

Influence of natural factors and anthropogenic stressors on sperm whale foraging effort and success at high latitudes

open access: yes, 2015
Behavioural responses can reveal important fitness trade-offs and ecological traps in evolutionarily novel contexts created by anthropogenic stimuli, and are of increasing conservation concern due to possible links to population-level impacts.
Isojunno, Saana
core  

Cetacean observations in the Indian Ocean Sanctuary and the South China Sea, Mauritius to the Philippines, April 1999

open access: yes, 2021
Information on cetaceans in the Indian Ocean Sanctuary and the South China Sea is summarized from a cruise carried out from 29 March to 17 April 1999. Ten species were positively identified: finless porpoise, pantropical spotted dolphin, spinner dolphin,
de Boer, Marijke
core   +1 more source

Kogia breviceps

open access: yes, 2014
1. Pygmy Sperm Whale Kogia breviceps French: Cachalot pygmée / German: Zwergpottwal / Spanish: Cachalote pigmeo Other common names: Lesser Cachalot, Lesser Sperm Whale, Short-headed Sperm Whale Taxonomy.
Don E. Wilson, Russell A. Mittermeier
core   +1 more source

Kogia sima

open access: yes, 2014
2. Dwarf Sperm Whale Kogia sima French: Cachalot nain / German: Kleinstpottwal / Spanish: Cachalote enano Other common names: Owen's Pygmy Whale, Snub-nosed Cachalot Taxonomy. Physeter simus Owen, 1866, India, Andhra Pradesh (= Madras Presidency), “
Don E. Wilson, Russell A. Mittermeier
core   +1 more source

Sighting of a large group of pygmy sperm whales ( Kogia breviceps ) and a recent record of a dwarf sperm whale ( K. sima ) in the Azores

open access: yesJournal of the Marine Biological Association of the United Kingdom
Abstract The family Kogiidae, comprising the pygmy sperm whale ( Kogia breviceps ) and the dwarf sperm whale ( K. sima ), represents some of the least-known cetaceans worldwide.
Daniel Benak   +11 more
openaire   +1 more source

Correlates of variability in killer whale stereotyped call repertoires. [PDF]

open access: yes, 2005
Killer whales vocalisations include repertoires of stereotyped call types (Ford 1984). There is strong evidence that these vocalisations are learnt (Hoelzel and Osborne 1986; Bain 1989; Deecke et al. 2000; Yurk et al. 2002).
Foote, Andrew David
core  

Modern and historical data identify sperm whale (Physeter macrocephalus) habitat offshore of south-western Australia [PDF]

open access: yes, 2013
The distribution and use of pelagic habitat by sperm whales (Physeter macrocephalus) is generally poorly understood in Western Australia. However, a variety of data are becoming available via online portals where records of historical expeditions ...
Johnson, Christopher
core  

Pygmy Sperm Whale Optimization Algorithm

open access: yes
Swarm optimization algorithms, by simulating the cooperative behavior of biological groups in nature, exhibit strong robustness and versatility in complex nonlinear optimization problems. However, many existing algorithms heavily rely on global or individual optimum information in their search mechanisms, easily leading to premature convergence ...
openaire   +1 more source

DWARF SPERM WHALE (Kogia simus): Western North Atlantic Stock

open access: yes, 1997
The dwarf sperm whale (Kogia simus) and the pygmy sperm whale (K. breviceps) appear to be distributed worldwide in temperate to tropical waters (Caldwell and Caldwell 1989).
Stock Definition, Geographic Range
core  

Comparative Analysis of the Diets of Pygmy Sperm Whales and Dwarf Sperm Whales in Taiwanese Waters

open access: yes, 2006
Stomach contents were analyzed of six pygmy sperm whales (Kogia breviceps) & five dwarf sperm whales (Kogia sima) which were taken as by-catch or were stranded specimens in coast al Taiwan from 1998 through 2000.
Wang, Ming-Chih; Walker, A.W.; Shao, Kwang-Tsao; Chou, Lien-Siang
core  

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