Results 51 to 60 of about 2,076 (185)
The Pliocene marine megafauna extinction and its impact on functional diversity [PDF]
Nature Ecology & Evolution, 2017 The end of the Pliocene marked the beginning of a period of great climatic variability and sea-level oscillations. Here, based on a new analysis of the fossil record, we identify a previously unrecognized extinction event among marine megafauna (mammals, seabirds, turtles and sharks) during this time, with extinction rates three times higher than in ...
Catalina Pimiento +6 more
openaire +4 more sources
Scientific ReportsKelp forest trophic cascades have been extensively researched, yet indirect effects to the zooplankton prey base and gray whales have not been explored. We investigate the correlative patterns of a trophic cascade between bull kelp and purple sea urchins
Lisa Hildebrand +3 more
doaj +1 more source
Intra‐ and inter‐annual variation in gray whale body condition on a foraging ground
Ecosphere, 2020 Baleen whales store energy gained on foraging grounds to support reproduction and other metabolic needs while fasting for long periods during migration.
Leila Soledade Lemos +4 more
doaj +1 more source
Temporal and spatial lags between wind, coastal upwelling, and blue whale occurrence
Scientific Reports, 2021 Understanding relationships between physical drivers and biological response is central to advancing ecological knowledge. Wind is the physical forcing mechanism in coastal upwelling systems, however lags between wind input and biological responses are ...
Dawn R. Barlow +4 more
doaj +1 more source
Frontiers in Marine Science, 2021 Predators must consume enough prey to support costly events, such as reproduction. Meeting high energetic requirements is particularly challenging for migrating baleen whales as their feeding seasons are typically restricted to a limited temporal window ...
Lisa Hildebrand +2 more
doaj +1 more source
Multi‐Platform Deployments of Low‐Cost Devices for Cetacean Passive Acoustic Monitoring
Remote Sensing in Ecology and Conservation, EarlyView.Recent advances in affordable, user‐friendly devices offer new opportunities to overcome cost constraints of underwater passive acoustic monitoring (PAM) and expand acoustic data collection. In this study, we deployed low‐cost acoustic recorders and underwater cameras across a range of platforms in the Western Mediterranean, including fishing gear ...
Greta Jankauskaite +8 more
wiley +1 more source
How migrating marine megafauna tracks with conservation
ScienceArea-based conservation is not sufficient to protect the ocean’s most highly mobile ...
Gerber, LR, Davis, K
openaire +2 more sources
Microplastics on the Menu: Plastics Pollute Indonesian Manta Ray and Whale Shark Feeding Grounds
Frontiers in Marine Science, 2019 The implications of plastic pollution, including microplastics, on marine ecosystems and species are increasingly seen as an environmental disaster. Yet few reports focus on filter-feeding megafauna in regions heavily impacted by plastic pollution, such ...
Elitza S. Germanov +13 more
doaj +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.Monitoring programs of vulnerable megafauna increasingly rely on aerial surveys from drones or planes fitted with cameras. However, automated methods are still lacking to accurately count individuals across entire surveys. Here, we leverage a tracking‐by‐detection framework to not only detect individuals but also link the resulting detections across ...
Laura Mannocci +6 more
wiley +1 more source
Rethinking Trade-Driven Extinction Risk in Marine and Terrestrial Megafauna [PDF]
Current Biology, 2016 Large animals hunted for the high value of their parts (e.g., elephant ivory and shark fins) are at risk of extinction due to both intensive international trade pressure and intrinsic biological sensitivity. However, the relative role of trade, particularly in non-perishable products, and biological factors in driving extinction risk is not well ...
Loren, McClenachan +2 more
openaire +2 more sources