دورية أكاديمية
Found: a missing breeding ground for endangered western North Pacific humpback whales in the Mariana Archipelago
| العنوان: | Found: a missing breeding ground for endangered western North Pacific humpback whales in the Mariana Archipelago |
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| المؤلفون: | Hill, MC, Bradford, AL, Steel, D, Baker, CS, Ligon, AD, Ü, AC, Acebes, JMV, Filatova, OA, Hakala, S, Kobayashi, N, Morimoto, Y, Okabe, H, Okamoto, R, Rivers, J, Sato, T, Titova, OV, Uyeyama, RK, Oleson, EM |
| المصدر: | Endangered Species Research, Vol 41, Pp 91-103 (2020) |
| بيانات النشر: | Inter-Research, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Zoology LCC:Botany |
| مصطلحات موضوعية: | Zoology, QL1-991, Botany, QK1-989 |
| الوصف: | Humpback whales Megaptera novaeangliae that breed in the western North Pacific (WNP) are listed as endangered under the US Endangered Species Act. Previous research in the WNP concluded that the full extent of humpback whale breeding areas is unknown. Recovering this endangered population requires identifying all associated breeding grounds and potential threats in those locations. Prior to 2015, humpback whales were known to occur in the Mariana Archipelago (within the WNP), but their population identity and habitat use there were unknown. To determine the population identity of humpback whales in the Mariana Archipelago and whether the area serves as a breeding ground for these whales, small-boat photo-identification and biopsy sampling surveys were conducted in the southern portion of the archipelago during February and March 2015-2018. A total of 14 mother-calf pairs and 27 other non-calf whales were encountered. Seven non-calves were re-sighted in multiple years, including 4 females associated with calves in one or more years. Competitive behavior was observed in multiple years. Comparisons with other North Pacific humpback whale catalogs resulted in matches to breeding (Japan and Philippines) and feeding (Russia) grounds in the WNP. DNA profiling of 28 biopsy samples identified 24 individuals (14 females, 10 males) representing 7 mitochondrial DNA haplotypes. The haplotype frequencies from the Mariana Archipelago showed the greatest identity with the Ogasawara breeding ground and Commander Islands feeding ground in the WNP. This study establishes the Mariana Archipelago as a breeding area for endangered WNP humpback whales, which should be considered in ongoing research and conservation efforts. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1863-5407 1613-4796 |
| Relation: | https://www.int-res.com/abstracts/esr/v41/p91-103/; https://doaj.org/toc/1863-5407; https://doaj.org/toc/1613-4796 |
| DOI: | 10.3354/esr01010 |
| URL الوصول: | https://doaj.org/article/0ef3f1e11ec5480cb9c2a6ee267e5795 |
| رقم الأكسشن: | edsdoj.0ef3f1e11ec5480cb9c2a6ee267e5795 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 18635407 16134796 |
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| DOI: | 10.3354/esr01010 |