Results 71 to 80 of about 28,386 (268)

Norwegian killer whale movements reflect their different prey types

Polar Research
Norwegian killer whales (Orcinus orca) are thought to be generalists that feed primarily on fish, but some individuals have been observed targeting pinnipeds.
Emma F. Vogel, Audun H. Rikardsen, Marie-Anne Blanchet, Pierre Blévin, Martin Biuw   +4 more
doaj   +1 more source

Tyrosine Hydroxylase in Vasopressinergic Axons of the Pituitary Posterior Lobe of Rats Under Salt-Loading as a Manifestation of Neurochemical Plasticity

Neural Plasticity, 2000
In this.study, we attempted to test whether tyrosine hydroxylase (TH), the first ratelimiting enzyme of catecholamine synthesis, is confined to the perikarya of activated magnocellular vasopressinergic (VPergic) neurons or is also present in their distal
Marina Abramova, André Calas, Jean Thibault, Michael Ugrumov   +3 more
doaj   +1 more source

Trace Element Contamination in Top Predatory Elasmobranchs From the Southern Black Sea: Implications for Ecosystem Health and Risk Assessment

Environmental Toxicology, EarlyView.
ABSTRACT Environmental pollution resulting from the rapid increase in human population, urbanization, intensive use of chemicals in agriculture, and industrial development has reached a level that threatens natural life today. Trace elements are one of the most important factors causing significant levels of pollution in the environment and are added ...
Levent Bat, Süleyman Özdemir, Zekiye Birinci Özdemir, Ayşah Öztekin   +3 more
wiley   +1 more source

Recolonisation of spawning grounds in a recovering fish stock: recent changes in North Sea herring

Scientia Marina, 2009
There is evidence that the importance of the different spawning grounds of North Sea autumn-spawning herring has changed. It has been hypothesised that as herring stocks collapse, the diversity of spawning sites also collapses.
Jörn O. Schmidt, Cindy J.G. van Damme, Christine Röckmann, Mark Dickey-Collas   +3 more
doaj   +1 more source

Feathers and flu: identifying data gaps in avian influenza host dynamics to prioritize wildlife conservation Plumas y gripe: identificación de datos faltantes en la dinámica de hospedadores de la influenza aviar para priorizar la conservación de la vida silvestre

Wildlife Monographs, EarlyView.
We describe the host response continuum for highly pathogenic avian influenza viruses (HPAIV), including the continuum of host responses to HPAIV infection and exposure based on the primary axis of host competence, ability to infect other hosts, and host vulnerability.
Johanna A. Harvey, Matthew Gonnerman, Shenglai Yin, Cody M. Kent, Joshua Cullen, Jeffery D. Sullivan, Jonathan B. Dain, Nichola J. Hill, Diann J. Prosser, Jennifer M. Mullinax   +9 more
wiley   +1 more source

Nesting ecology of an ice‐associated seabird, Kittlitz's murrelet, at the northern edge of its range

Wildlife Society Bulletin, EarlyView.
We studied the Kittlitz's murrelet, an ice‐associated seabird of conservation concern, at the northern edge of its range. Over a 2‐year period, we estimated nest density and success at 2 sites, captured and telemetered nesting murrelets, and tested the use of a thermal camera to improve nest detection.
Michelle L. Kissling, Molly C. McDevitt, Jonathan J. Felis, William Crisci, Zachary Pohlen, Ryan Ongtowasruk, Daniel L. Perret, Paul M. Lukacs, James A. Johnson, Metrona Mazonna   +9 more
wiley   +1 more source

Social information about others' affective states in a human‐altered world

Journal of Animal Ecology, EarlyView.
Faced with anthropogenic change, animals now encounter challenges different from their evolutionary past. To cope with such challenges, animals may use social information about others' affective states to guide their decisions. Considering affective states of wild animals could have important implications for animal welfare and wildlife conservation ...
Luca G. Hahn, Jordan McDowall, Margaux Vanhussel, Mike Mendl, Alex Thornton   +4 more
wiley   +1 more source

Human Impact on the Twenty-Four-Hour Patterns of Steller Sea Lions’ Use of a Haulout in Hokkaido, Japan

Animals
Steller sea lions (SSLs) migrate to the Hokkaido coast to spend the winter there, leading to conflicts arising with fishermen over herring. This study analyzed the trends in the SSLs’ use of a haulout as a rest site under human pressure.
Yuko Chayahara, Yumiko Nakanowataru, Sara Abe, Runa Kurosawa, Sayuki Suma, Nana Murasato, Rin Oyamada, Natsuki Ebashi, Masatoshi Tsunokawa, Mayu Sakurama, Takanori Kooriyama   +10 more
doaj   +1 more source

Offshore wind farm avoidance by a discard‐feeding seabird is independent of local fishing activity

Journal of Animal Ecology, EarlyView.
Fishing is not allowed within wind farms; therefore, discard‐feeding seabirds may appear to avoid wind farm areas. We found that most Lesser Black‐backed Gulls avoided the wind farm area, but not each individual in each period. Avoidance of the wind farm was not driven by fishing exclusion within its perimeter.
Rosemarie Kentie, Rob S. A. van Bemmelen, Judy Shamoun‐Baranes, Eric W. M. Stienen, Ruben C. Fijn   +4 more
wiley   +1 more source

The Problem With Efficiency as a Pervasive Principle in Business School Academia, and What a Sufficiency‐Based Approach Can Do Better

British Journal of Management, EarlyView.
Abstract Efficiency is a pervasive yet insufficiently challenged managerial principle and an integral part of business school academia. However, while there is compelling evidence that efficiency gains can have severe undesirable social and ecological consequences that reduce overall welfare both in terms of well‐being and natural resources, business ...
Stephan M. Schaefer, Christopher Wickert
wiley   +1 more source