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Deceased calf-carrying by female Arctic killer whale suggests species-wide epimeletic behaviorNARA Subscribed
Carrying dead calves is an epimeletic behaviour (caregiving or attentive actions towards injured or dead individuals) documented in several social cetacean species. During focal follows using a drone, we recorded an adult female killer whale ( Orcinus orca ) in the eastern Canadian Arctic carrying a deceased calf by its pectoral fins. Although the calf possessed several injuries, the cause of death was unclear. Similar account...
Motivation Here, we make available a second version of the BioTIME database, which compiles records of abundance estimates for species in sample events of ecological assemblages through time. The updated version expands version 1.0 of the database by doubling the number of studies and includes substantial additional curation to the taxonomic accuracy of the records, as well as the metadata. Moreover, we now provide an R packag...
The ocean plays a crucial role in the functioning of the Earth System and in the provision of vital goods and services. The United Nations (UN) declared 2021–2030 as the UN Decade of Ocean Science for Sustainable Development. The Roadmap for the Ocean Decade aims to achieve six critical societal outcomes (SOs) by 2030, through the pursuit of four objectives (Os). It specifically recognizes the scarcity of biological data for d...
Tuning the modular Paracoccus denitrificans respirome to adapt from aerobic respiration to anaerobic denitrificationNARA Subscribed
Summary Bacterial denitrification is a respiratory process that is a major source and sink of the potent greenhouse gas nitrous oxide. Many denitrifying bacteria can adjust to life in both oxic and anoxic environments through differential expression of their respiromes in response to environmental signals such as oxygen, nitrate and nitric oxide. We used steady‐state oxic and anoxic chemostat cultures to demonstrate that the s...
Climate change‐driven stressors threaten the persistence of coral reefs worldwide. Symbiotic relationships between scleractinian corals and photosynthetic endosymbionts (genus Symbiodinium ) are the foundation of reef ecosystems, and these associations are differentially impacted by stress. Here, we couple empirical data from the coral reefs of Moorea, French Polynesia, and a network theoretic modeling approach to evaluate how...
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