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| DOI | 10.3354/meps14464 |
| Environmental drivers of persistent humpback whale Megaptera novaeangliae feeding events in a Mexican breeding area | |
| 发表日期 | 2024 |
| ISSN | 0171-8630 |
| EISSN | 1616-1599 |
| 起始页码 | 726 |
| 卷号 | 726 |
| 英文摘要 | Humpback whales Megaptera novaeangliae typically fast for several months in low-latitude breeding areas. Here we report on persistent feeding events during 5 wintering seasons between 2013 and 2020 in a known upwelling region of Banderas Bay of the mainland Mexico breeding area. In total, there were 76 unique feeding events documented (group size = 1 to similar to 100 individuals), involving 201 photo-identified whales, of which 18 were documented feeding in multiple years. The most prolific years of documented feeding in 2017 and 2018 (based on number of reports/individuals photo-identified feeding) followed the strongest marine heatwave ever recorded in the North Pacific. Whales documented feeding in Banderas Bay had significantly shorter mean sighting histories (2.3 yr) than a non-feeding sample (8.7 yr) and were reported to be of small size, suggesting they were predominantly younger whales. Most high-latitude recaptures of Banderas Bay feeding whales were in more northern North Pacific feeding grounds (50.8% were resighted in Russia, Alaska, and northern British Colombia, Canada). A binomial general linear model revealed a significant relationship between the probability of whales feeding in Banderas Bay and sea surface temperature (SST). Specifically, feeding consistently occurred in years of lower than average winter SST (<25 degrees C), associated with La Nina years of the El Nino Southern Oscillation (ENSO). We conclude that feeding of humpback whales is now a predictable occurrence in the upwelling region of Banderas Bay in years that ENSO fluctuations lead to lower regional SST. The magnitude of several years of low-latitude feeding events reported here was likely influenced by climate change induced marine heatwaves that occurred during the study period. |
| 英文关键词 | Global warming; Climate change; El Nino Southern Oscillation; Marine heatwave; Migratory species; Recovering population |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Oceanography |
| WOS类目 | Ecology ; Marine & Freshwater Biology ; Oceanography |
| WOS记录号 | WOS:001183510500007 |
| 来源期刊 | MARINE ECOLOGY PROGRESS SERIES
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/290217 |
| 作者单位 | Murdoch University; Murdoch University; Southern Cross University; Russian Academy of Sciences; Saratov Scientific Center of the Russian Academy of Sciences; Severtsov Institute of Ecology & Evolution; University of Southern Denmark |
| 推荐引用方式 GB/T 7714 | . Environmental drivers of persistent humpback whale Megaptera novaeangliae feeding events in a Mexican breeding area[J],2024,726. |
| APA | (2024).Environmental drivers of persistent humpback whale Megaptera novaeangliae feeding events in a Mexican breeding area.MARINE ECOLOGY PROGRESS SERIES,726. |
| MLA | "Environmental drivers of persistent humpback whale Megaptera novaeangliae feeding events in a Mexican breeding area".MARINE ECOLOGY PROGRESS SERIES 726(2024). |
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