A hydrodynamically active flipper-stroke in humpback whales
نویسندگان
چکیده
منابع مشابه
Epigenetic estimation of age in humpback whales
Age is a fundamental aspect of animal ecology, but is difficult to determine in many species. Humpback whales exemplify this as they have a lifespan comparable to humans, mature sexually as early as 4 years and have no reliable visual age indicators after their first year. Current methods for estimating humpback age cannot be applied to all individuals and populations. Assays for human age have...
متن کاملEvidence for the functions of surface-active behaviors in humpback whales (Megaptera novaeangliae)
As part of their social sound repertoire, migrating humpback whales (Megaptera novaeangliae) perform a large variety of surface-active behaviors, such as breaching and repetitive slapping of the pectoral fins and tail flukes; however, little is known about what factors influence these behaviors and what their functions might be. We investigated the potential functions of surface-active behavior...
متن کاملDeaths and Entanglements of Humpback Whales, Megaptera novaeangliae,
Reports of humpback whales, Megaptera novaeangliae, that either died or were entangled in Hawaiian waters from 1972 through October 1996 were analyzed to determine age class (estimated from body length and/or notes), location, annual frequency, and seasonal distribution of occurrence. Using reports collected from the National Marine Fisheries Service Pacific Area Office and published news repor...
متن کاملGlobal diversity and oceanic divergence of humpback whales (Megaptera novaeangliae).
Humpback whales (Megaptera novaeangliae) annually undertake the longest migrations between seasonal feeding and breeding grounds of any mammal. Despite this dispersal potential, discontinuous seasonal distributions and migratory patterns suggest that humpbacks form discrete regional populations within each ocean. To better understand the worldwide population history of humpbacks, and the interp...
متن کاملNon-song social call bouts of migrating humpback whales.
The use of stereotyped calls within structured bouts has been described for a number of species and may increase the information potential of call repertoires. Humpback whales produce a repertoire of social calls, although little is known about the complexity or function of these calls. In this study, digital acoustic tag recordings were used to investigate social call use within bouts, the use...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2017
ISSN: 0960-9822
DOI: 10.1016/j.cub.2017.05.063