Mammalian Biology, Год журнала: 2022, Номер 102(3), С. 855 - 861
Опубликована: Июнь 1, 2022
Язык: Английский
Mammalian Biology, Год журнала: 2022, Номер 102(3), С. 855 - 861
Опубликована: Июнь 1, 2022
Язык: Английский
Mammalian Biology, Год журнала: 2021, Номер 102(3), С. 915 - 929
Опубликована: Дек. 7, 2021
Язык: Английский
Процитировано
76Mammalian Biology, Год журнала: 2022, Номер 102(4), С. 1047 - 1054
Опубликована: Авг. 1, 2022
Язык: Английский
Процитировано
29The Science of The Total Environment, Год журнала: 2024, Номер 920, С. 169753 - 169753
Опубликована: Янв. 3, 2024
Язык: Английский
Процитировано
9Frontiers in Marine Science, Год журнала: 2024, Номер 11
Опубликована: Март 20, 2024
The Pearl River Delta (PRD) region on the southeast coast of China is among largest and most populated metropolitan regions world, subjecting Indo-Pacific humpback dolphins ( Sousa chinensis ) inhabiting coastal waters this – apparently population species to intense anthropogenic pressure. In 5-year study (2011-2015), we applied mark-recapture techniques quantify parameters in main body extensive estuarine system River, Lingding Bay (LB), urbanized industrialized part PRD. super-population size was estimated at 928 individuals (95% CI=823-1046), which however over-represents latest number extant animals. Annual estimates fluctuated between 708 750 dolphins, likely reflect accurately latest/current LB. Both overall annual generated by our are considerably lower than previously published abundance estimates. Apparent survival rates were generally low, 0.943 (SE = 0.008, 95% CI 0.929-0.958) 0.815 0.025, 0.766-0.866) for adults juveniles, respectively. conjunction with limited recruitment, they may have led a substantial decline numbers over past two decades. Notably, exhibited heterogeneous apparent across complex seascape Adult that use Hong Kong as their primary habitat 6.2% higher those other parts This difference tripled (19.2%) expression susceptibility environmental and/or stresses. We suggest largely due stressors vary spatially estuary, loss, pollution, declining prey resources appear be threats. Based findings, call strategic conservation planning highest priority given preserve remaining key dolphin habitats waters, mitigate impacts major stressor(s) Guangdong (mainland China) waters. Given encroachment ever-more-intense human activities understanding demographic response underlying mechanisms processes prove instrumental formulation management strategy can secure continuous survival.
Язык: Английский
Процитировано
7Mammalian Biology, Год журнала: 2022, Номер 102(3), С. 765 - 779
Опубликована: Апрель 18, 2022
Язык: Английский
Процитировано
20Scientific Reports, Год журнала: 2023, Номер 13(1)
Опубликована: Июнь 23, 2023
We present an ocean-basin-scale dataset that includes tail fluke photographic identification (photo-ID) and encounter data for most living individual humpback whales (Megaptera novaeangliae) in the North Pacific Ocean. The was built through a broad collaboration combining 39 separate curated photo-ID catalogs, supplemented with community science data. Data from throughout were aggregated into 13 regions, including six breeding feeding one migratory corridor. All images compared minimal pre-processing using recently developed image recognition algorithm based on machine learning artificial intelligence; this system is capable of rapidly detecting matches between individuals estimated 97-99% accuracy. For 2001-2021 study period, total 27,956 unique documented 157,350 encounters. Each encountered, average, 5.6 sampling periods (i.e., seasons), annual average 87% encountered more than season. combined tool represents accessible resource collaborative, basin-wide studies keystone marine mammal time rapid ecological change.
Язык: Английский
Процитировано
12Mammalian Biology, Год журнала: 2022, Номер 102(3), С. 667 - 683
Опубликована: Март 31, 2022
Язык: Английский
Процитировано
19Regional Studies in Marine Science, Год журнала: 2024, Номер 77, С. 103641 - 103641
Опубликована: Июнь 15, 2024
Язык: Английский
Процитировано
3Mammalian Biology, Год журнала: 2022, Номер 102(3), С. 811 - 827
Опубликована: Апрель 5, 2022
Язык: Английский
Процитировано
14Mammalian Biology, Год журнала: 2022, Номер 102(4), С. 1469 - 1481
Опубликована: Авг. 1, 2022
Abstract Information on movements and connectivity among populations of animals is important for the delineation units to conserve, so that demographic parameters, such as abundance, fecundity mortality, can be placed in an appropriate population conservation context. Common bottlenose dolphins ( Tursiops truncatus ) are often considered relatively ‘resident’ demonstrating strong site fidelity specific areas. However, this perception may partly artefact distribution ‘habitat use’ cetacean researchers, rather than themselves, have been shown capable substantial movements, short periods time. Here, we report two long-distance a common dolphin within Mediterranean Sea, across Tyrrhenian, Ionian Adriatic Seas, subsequently back all three seas Ligurian making these longest recorded movement species Sea date some world. We also review published records worldwide. This study highlights utility photo-identification importance regional data sharing. argue comparisons always worthwhile results informative regardless presence or absence matches, especially with ongoing advances automated matching software.
Язык: Английский
Процитировано
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