Found: a missing breeding ground for endangered western North Pacific humpback whales in the Mariana Archipelago
نویسندگان
چکیده
منابع مشابه
Critically endangered western gray whales migrate to the eastern North Pacific.
Western North Pacific gray whales (WGWs), once considered extinct, are critically endangered with unknown migratory routes and reproductive areas. We attached satellite-monitored tags to seven WGWs on their primary feeding ground off Sakhalin Island, Russia, three of which subsequently migrated to regions occupied by non-endangered eastern gray whales (EGWs). A female with the longest-lasting t...
متن کاملGenetic evidence for sex-specific migratory behaviour in western South Pacific humpback whales
Although predictable in its areas of occurrence, many aspects of humpback whale migration are still poorly understood. Nuclear DNA analysis has revealed a low level of relatedness among whales using the same migratory corridor, and has shown that closely related individuals tend not to travel in spatial association. Yet it still remains uncertain whether whales from different matrilineally disc...
متن کاملSegregation of migration by feeding ground origin in North Atlantic humpback whales (Megaptera novaeangliae)
Results from a large-scale, capture–recapture study of humpback whales Megaptera novaeangliae in the North Atlantic show that migration timing is influenced by feeding ground origin. No significant differences were observed in the number of individuals from any feeding area that were re-sighted in the common breeding area in the West Indies. However, there was a relationship between the proport...
متن کاملSatellite tracking reveals novel migratory patterns and the importance of seamounts for endangered South Pacific humpback whales
The humpback whale population of New Caledonia appears to display a novel migratory pattern characterized by multiple directions, long migratory paths and frequent pauses over seamounts and other shallow geographical features. Using satellite-monitored radio tags, we tracked 34 whales for between 5 and 110 days, travelling between 270 and 8540 km on their southward migration from a breeding gro...
متن کاملHumpback whale Megaptera novaeangliae song reveals wintering activity in the Northwestern Hawaiian Islands
The main Hawaiian Islands (MHI) are the principal breeding ground for humpback whales in the North Pacific. Over the past 3 decades, population recovery from whaling-era losses has resulted in a steady increase in the number of whales wintering in Hawaiian waters and a geographic expansion of their distribution in the MHI. Until recently, no existing evidence showed that this expansion included...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Endangered Species Research
سال: 2020
ISSN: 1863-5407,1613-4796
DOI: 10.3354/esr01010