Emerging Contaminants and New POPs (PFAS and HBCDD) in Endangered Southern Resident and Bigg's (Transient) Killer Whales (Orcinus orca): In Utero …

K Lee, JJ Alava, P Cottrell, L Cottrell… - … science & technology, 2022 - ACS Publications
Killer whales (Orcinus orca) have been deemed one of the most contaminated cetacean
species in the world. However, concentrations and potential health implications of selected …

Temporal dynamics of mother–offspring relationships in Bigg's killer whales: opportunities for kin-directed help by post-reproductive females

MLK Nielsen, S Ellis, MN Weiss… - … of the Royal …, 2023 - royalsocietypublishing.org
Age-related changes in the patterns of local relatedness (kinship dynamics) can be a
significant selective force shaping the evolution of life history and social behaviour. In …

Morphometrics of mammal‐eating killer whales from drone photogrammetry, with comparison to sympatric fish‐eating killer whales in the eastern North Pacific

C Kotik, JW Durban, H Fearnbach… - Marine Mammal …, 2023 - Wiley Online Library
Aerial photogrammetry has provided increased power for monitoring the health of
individuals in the endangered population of Southern Resident killer whales (SRKW …

Postreproductive female killer whales reduce socially inflicted injuries in their male offspring

C Grimes, LJN Brent, S Ellis, MN Weiss, DW Franks… - Current Biology, 2023 - cell.com
Understanding the evolution of menopause presents a long-standing scientific challenge 1,
2, 3—why should females cease ovulation prior to the end of their natural lifespan? In …

Alaska marine mammal stock assessments, 2023

NC Young, AA Brower, MM Muto, JC Freed, RP Angliss… - 2024 - repository.library.noaa.gov
Each stock assessment includes, when available, a description of the stock's geographic
range; a minimum population estimate; current population trends; current and maximum net …

Orca-spy enables killer whale sound source simulation, detection, classification and localization using an integrated deep learning-based segmentation

C Hauer, E Nöth, A Barnhill, A Maier, J Guthunz… - Scientific Reports, 2023 - nature.com
Acoustic identification of vocalizing individuals opens up new and deeper insights into
animal communications, such as individual-/group-specific dialects, turn-taking events, and …

FIN-PRINT a fully-automated multi-stage deep-learning-based framework for the individual recognition of killer whales

C Bergler, A Gebhard, JR Towers, L Butyrev… - Scientific reports, 2021 - nature.com
Biometric identification techniques such as photo-identification require an array of unique
natural markings to identify individuals. From 1975 to present, Bigg's killer whales have …

Return of the Salish Sea Harbor Porpoise, Phocoena phocoena: Knowledge Gaps, Current Research, and What We Need to Do to Protect Their Future

CR Elliser, A Hall - Frontiers in Marine Science, 2021 - frontiersin.org
The harbor porpoise (Phocoena phocoena) is one of the most abundant coastal cetacean
species in the Northern Hemisphere with differential levels of regional knowledge. Gaps are …

Mammal hunting killer whales off Monterey, California: A 30-year synthesis

NA Black, CM Talty, A Schulman-Janiger… - Social Strategies of …, 2023 - Springer
Bigg's (Transient) killer whales (Orcinus orca) display incredible cooperative hunting
techniques and a complex social organization. We describe the predation behavior of Bigg's …

A long postreproductive life span is a shared trait among genetically distinct killer whale populations

MLK Nielsen, S Ellis, JR Towers… - Ecology and …, 2021 - Wiley Online Library
The extended female postreproductive life span found in humans and some toothed whales
remains an evolutionary puzzle. Theory predicts demographic patterns resulting in …