Structure and Dynamics of Humpback Whales Competitive Groups in Ecuador
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 کاملthe study of bright and surface discrete cavity solitons dynamics in saturable nonlinear media
امروزه سالیتون ها بعنوان امواج جایگزیده ای که تحت شرایط خاص بدون تغییر شکل در محیط منتشر می-شوند، زمینه مطالعات گسترده ای در حوزه اپتیک غیرخطی هستند. در این راستا توجه به پدیده پراش گسسته، که بعنوان عامل پهن شدگی باریکه نوری در آرایه ای از موجبرهای جفت شده، ظاهر می گردد، ضروری است، زیرا سالیتون های گسسته از خنثی شدن پراش گسسته در این سیستم ها بوسیله عوامل غیرخطی بوجود می آیند. گسستگی سیستم عامل...
Population Structure of Humpback Whales from Their Breeding Grounds in the South Atlantic and Indian Oceans
Although humpback whales are among the best-studied of the large whales, population boundaries in the Southern Hemisphere (SH) have remained largely untested. We assess population structure of SH humpback whales using 1,527 samples collected from whales at fourteen sampling sites within the Southwestern and Southeastern Atlantic, the Southwestern Indian Ocean, and Northern Indian Ocean (Breedin...
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...
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ژورنال
عنوان ژورنال: Animal Behavior and Cognition
سال: 2015
ISSN: 2372-5052,2372-4323
DOI: 10.12966/abc.02.05.2015